Contents of /trunk/kernel-alx/patches-4.9/0192-4.9.93-all-fixes.patch
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Revision 3169 -
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Wed Aug 8 14:17:25 2018 UTC (6 years, 1 month ago) by niro
File size: 121072 byte(s)
Wed Aug 8 14:17:25 2018 UTC (6 years, 1 month ago) by niro
File size: 121072 byte(s)
-linux-4.9.93
1 | diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt |
2 | index caf297bee1fb..c28d4eb83b76 100644 |
3 | --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt |
4 | +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt |
5 | @@ -35,6 +35,15 @@ Optional properties: |
6 | - ti,palmas-enable-dvfs2: Enable DVFS2. Configure pins for DVFS2 mode. |
7 | Selection primary or secondary function associated to GPADC_START |
8 | and SYSEN2 pin/pad for DVFS2 interface |
9 | +- ti,palmas-override-powerhold: This is applicable for PMICs for which |
10 | + GPIO7 is configured in POWERHOLD mode which has higher priority |
11 | + over DEV_ON bit and keeps the PMIC supplies on even after the DEV_ON |
12 | + bit is turned off. This property enables driver to over ride the |
13 | + POWERHOLD value to GPIO7 so as to turn off the PMIC in power off |
14 | + scenarios. So for GPIO7 if ti,palmas-override-powerhold is set |
15 | + then the GPIO_7 field should never be muxed to anything else. |
16 | + It should be set to POWERHOLD by default and only in case of |
17 | + power off scenarios the driver will over ride the mux value. |
18 | |
19 | This binding uses the following generic properties as defined in |
20 | pinctrl-bindings.txt: |
21 | diff --git a/Makefile b/Makefile |
22 | index 3ab3b8203bf6..f5cf4159fc20 100644 |
23 | --- a/Makefile |
24 | +++ b/Makefile |
25 | @@ -1,6 +1,6 @@ |
26 | VERSION = 4 |
27 | PATCHLEVEL = 9 |
28 | -SUBLEVEL = 92 |
29 | +SUBLEVEL = 93 |
30 | EXTRAVERSION = |
31 | NAME = Roaring Lionus |
32 | |
33 | diff --git a/arch/arm/boot/dts/am335x-pepper.dts b/arch/arm/boot/dts/am335x-pepper.dts |
34 | index 42b62f54e4b7..30e2f8770aaf 100644 |
35 | --- a/arch/arm/boot/dts/am335x-pepper.dts |
36 | +++ b/arch/arm/boot/dts/am335x-pepper.dts |
37 | @@ -139,7 +139,7 @@ |
38 | &audio_codec { |
39 | status = "okay"; |
40 | |
41 | - reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>; |
42 | + gpio-reset = <&gpio1 16 GPIO_ACTIVE_LOW>; |
43 | AVDD-supply = <&ldo3_reg>; |
44 | IOVDD-supply = <&ldo3_reg>; |
45 | DRVDD-supply = <&ldo3_reg>; |
46 | diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi |
47 | index 6df7829a2c15..78bee26361f1 100644 |
48 | --- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi |
49 | +++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi |
50 | @@ -204,6 +204,7 @@ |
51 | interrupt-controller; |
52 | |
53 | ti,system-power-controller; |
54 | + ti,palmas-override-powerhold; |
55 | |
56 | tps659038_pmic { |
57 | compatible = "ti,tps659038-pmic"; |
58 | diff --git a/arch/arm/boot/dts/am57xx-idk-common.dtsi b/arch/arm/boot/dts/am57xx-idk-common.dtsi |
59 | index db858fff4e18..1cc62727e43a 100644 |
60 | --- a/arch/arm/boot/dts/am57xx-idk-common.dtsi |
61 | +++ b/arch/arm/boot/dts/am57xx-idk-common.dtsi |
62 | @@ -57,6 +57,7 @@ |
63 | #interrupt-cells = <2>; |
64 | interrupt-controller; |
65 | ti,system-power-controller; |
66 | + ti,palmas-override-powerhold; |
67 | |
68 | tps659038_pmic { |
69 | compatible = "ti,tps659038-pmic"; |
70 | diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts |
71 | index 132f2be10889..56311fd34f81 100644 |
72 | --- a/arch/arm/boot/dts/dra7-evm.dts |
73 | +++ b/arch/arm/boot/dts/dra7-evm.dts |
74 | @@ -398,6 +398,8 @@ |
75 | tps659038: tps659038@58 { |
76 | compatible = "ti,tps659038"; |
77 | reg = <0x58>; |
78 | + ti,palmas-override-powerhold; |
79 | + ti,system-power-controller; |
80 | |
81 | tps659038_pmic { |
82 | compatible = "ti,tps659038-pmic"; |
83 | diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts |
84 | index 6003b29c0fc0..4d448f145ed1 100644 |
85 | --- a/arch/arm/boot/dts/omap3-n900.dts |
86 | +++ b/arch/arm/boot/dts/omap3-n900.dts |
87 | @@ -510,7 +510,7 @@ |
88 | tlv320aic3x: tlv320aic3x@18 { |
89 | compatible = "ti,tlv320aic3x"; |
90 | reg = <0x18>; |
91 | - reset-gpios = <&gpio2 28 GPIO_ACTIVE_LOW>; /* 60 */ |
92 | + gpio-reset = <&gpio2 28 GPIO_ACTIVE_HIGH>; /* 60 */ |
93 | ai3x-gpio-func = < |
94 | 0 /* AIC3X_GPIO1_FUNC_DISABLED */ |
95 | 5 /* AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT */ |
96 | @@ -527,7 +527,7 @@ |
97 | tlv320aic3x_aux: tlv320aic3x@19 { |
98 | compatible = "ti,tlv320aic3x"; |
99 | reg = <0x19>; |
100 | - reset-gpios = <&gpio2 28 GPIO_ACTIVE_LOW>; /* 60 */ |
101 | + gpio-reset = <&gpio2 28 GPIO_ACTIVE_HIGH>; /* 60 */ |
102 | |
103 | AVDD-supply = <&vmmc2>; |
104 | DRVDD-supply = <&vmmc2>; |
105 | diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c |
106 | index da0b33deba6d..5629d7580973 100644 |
107 | --- a/arch/arm/vfp/vfpmodule.c |
108 | +++ b/arch/arm/vfp/vfpmodule.c |
109 | @@ -648,7 +648,7 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp, |
110 | */ |
111 | static int vfp_dying_cpu(unsigned int cpu) |
112 | { |
113 | - vfp_force_reload(cpu, current_thread_info()); |
114 | + vfp_current_hw_state[cpu] = NULL; |
115 | return 0; |
116 | } |
117 | |
118 | diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig |
119 | index 7769c2e27788..c8471cf46cbb 100644 |
120 | --- a/arch/arm64/Kconfig |
121 | +++ b/arch/arm64/Kconfig |
122 | @@ -733,6 +733,18 @@ config FORCE_MAX_ZONEORDER |
123 | However for 4K, we choose a higher default value, 11 as opposed to 10, giving us |
124 | 4M allocations matching the default size used by generic code. |
125 | |
126 | +config UNMAP_KERNEL_AT_EL0 |
127 | + bool "Unmap kernel when running in userspace (aka \"KAISER\")" if EXPERT |
128 | + default y |
129 | + help |
130 | + Speculation attacks against some high-performance processors can |
131 | + be used to bypass MMU permission checks and leak kernel data to |
132 | + userspace. This can be defended against by unmapping the kernel |
133 | + when running in userspace, mapping it back in on exception entry |
134 | + via a trampoline page in the vector table. |
135 | + |
136 | + If unsure, say Y. |
137 | + |
138 | menuconfig ARMV8_DEPRECATED |
139 | bool "Emulate deprecated/obsolete ARMv8 instructions" |
140 | depends on COMPAT |
141 | diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h |
142 | index 851290d2bfe3..7193bf97b8da 100644 |
143 | --- a/arch/arm64/include/asm/assembler.h |
144 | +++ b/arch/arm64/include/asm/assembler.h |
145 | @@ -413,4 +413,7 @@ alternative_endif |
146 | movk \reg, :abs_g0_nc:\val |
147 | .endm |
148 | |
149 | + .macro pte_to_phys, phys, pte |
150 | + and \phys, \pte, #(((1 << (48 - PAGE_SHIFT)) - 1) << PAGE_SHIFT) |
151 | + .endm |
152 | #endif /* __ASM_ASSEMBLER_H */ |
153 | diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h |
154 | index 87b446535185..7ddf233f05bd 100644 |
155 | --- a/arch/arm64/include/asm/cpucaps.h |
156 | +++ b/arch/arm64/include/asm/cpucaps.h |
157 | @@ -34,7 +34,8 @@ |
158 | #define ARM64_HAS_32BIT_EL0 13 |
159 | #define ARM64_HYP_OFFSET_LOW 14 |
160 | #define ARM64_MISMATCHED_CACHE_LINE_SIZE 15 |
161 | +#define ARM64_UNMAP_KERNEL_AT_EL0 16 |
162 | |
163 | -#define ARM64_NCAPS 16 |
164 | +#define ARM64_NCAPS 17 |
165 | |
166 | #endif /* __ASM_CPUCAPS_H */ |
167 | diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h |
168 | index 26a68ddb11c1..1d47930c30dc 100644 |
169 | --- a/arch/arm64/include/asm/cputype.h |
170 | +++ b/arch/arm64/include/asm/cputype.h |
171 | @@ -81,6 +81,7 @@ |
172 | |
173 | #define CAVIUM_CPU_PART_THUNDERX 0x0A1 |
174 | #define CAVIUM_CPU_PART_THUNDERX_81XX 0x0A2 |
175 | +#define CAVIUM_CPU_PART_THUNDERX2 0x0AF |
176 | |
177 | #define BRCM_CPU_PART_VULCAN 0x516 |
178 | |
179 | @@ -88,6 +89,8 @@ |
180 | #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57) |
181 | #define MIDR_THUNDERX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX) |
182 | #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX) |
183 | +#define MIDR_CAVIUM_THUNDERX2 MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX2) |
184 | +#define MIDR_BRCM_VULCAN MIDR_CPU_MODEL(ARM_CPU_IMP_BRCM, BRCM_CPU_PART_VULCAN) |
185 | |
186 | #ifndef __ASSEMBLY__ |
187 | |
188 | diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h |
189 | index caf86be815ba..d8e58051f32d 100644 |
190 | --- a/arch/arm64/include/asm/fixmap.h |
191 | +++ b/arch/arm64/include/asm/fixmap.h |
192 | @@ -51,6 +51,12 @@ enum fixed_addresses { |
193 | |
194 | FIX_EARLYCON_MEM_BASE, |
195 | FIX_TEXT_POKE0, |
196 | + |
197 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
198 | + FIX_ENTRY_TRAMP_DATA, |
199 | + FIX_ENTRY_TRAMP_TEXT, |
200 | +#define TRAMP_VALIAS (__fix_to_virt(FIX_ENTRY_TRAMP_TEXT)) |
201 | +#endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */ |
202 | __end_of_permanent_fixed_addresses, |
203 | |
204 | /* |
205 | diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h |
206 | index 53211a0acf0f..5e3faba689e0 100644 |
207 | --- a/arch/arm64/include/asm/memory.h |
208 | +++ b/arch/arm64/include/asm/memory.h |
209 | @@ -64,8 +64,10 @@ |
210 | * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area. |
211 | */ |
212 | #define VA_BITS (CONFIG_ARM64_VA_BITS) |
213 | -#define VA_START (UL(0xffffffffffffffff) << VA_BITS) |
214 | -#define PAGE_OFFSET (UL(0xffffffffffffffff) << (VA_BITS - 1)) |
215 | +#define VA_START (UL(0xffffffffffffffff) - \ |
216 | + (UL(1) << VA_BITS) + 1) |
217 | +#define PAGE_OFFSET (UL(0xffffffffffffffff) - \ |
218 | + (UL(1) << (VA_BITS - 1)) + 1) |
219 | #define KIMAGE_VADDR (MODULES_END) |
220 | #define MODULES_END (MODULES_VADDR + MODULES_VSIZE) |
221 | #define MODULES_VADDR (VA_START + KASAN_SHADOW_SIZE) |
222 | diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h |
223 | index 8d9fce037b2f..a813edf28737 100644 |
224 | --- a/arch/arm64/include/asm/mmu.h |
225 | +++ b/arch/arm64/include/asm/mmu.h |
226 | @@ -16,6 +16,10 @@ |
227 | #ifndef __ASM_MMU_H |
228 | #define __ASM_MMU_H |
229 | |
230 | +#define USER_ASID_FLAG (UL(1) << 48) |
231 | + |
232 | +#ifndef __ASSEMBLY__ |
233 | + |
234 | typedef struct { |
235 | atomic64_t id; |
236 | void *vdso; |
237 | @@ -28,6 +32,12 @@ typedef struct { |
238 | */ |
239 | #define ASID(mm) ((mm)->context.id.counter & 0xffff) |
240 | |
241 | +static inline bool arm64_kernel_unmapped_at_el0(void) |
242 | +{ |
243 | + return IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0) && |
244 | + cpus_have_cap(ARM64_UNMAP_KERNEL_AT_EL0); |
245 | +} |
246 | + |
247 | extern void paging_init(void); |
248 | extern void bootmem_init(void); |
249 | extern void __iomem *early_io_map(phys_addr_t phys, unsigned long virt); |
250 | @@ -37,4 +47,5 @@ extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys, |
251 | pgprot_t prot, bool allow_block_mappings); |
252 | extern void *fixmap_remap_fdt(phys_addr_t dt_phys); |
253 | |
254 | +#endif /* !__ASSEMBLY__ */ |
255 | #endif |
256 | diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h |
257 | index a50185375f09..b96c4799f881 100644 |
258 | --- a/arch/arm64/include/asm/mmu_context.h |
259 | +++ b/arch/arm64/include/asm/mmu_context.h |
260 | @@ -50,6 +50,13 @@ static inline void cpu_set_reserved_ttbr0(void) |
261 | isb(); |
262 | } |
263 | |
264 | +static inline void cpu_switch_mm(pgd_t *pgd, struct mm_struct *mm) |
265 | +{ |
266 | + BUG_ON(pgd == swapper_pg_dir); |
267 | + cpu_set_reserved_ttbr0(); |
268 | + cpu_do_switch_mm(virt_to_phys(pgd),mm); |
269 | +} |
270 | + |
271 | /* |
272 | * TCR.T0SZ value to use when the ID map is active. Usually equals |
273 | * TCR_T0SZ(VA_BITS), unless system RAM is positioned very high in |
274 | diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h |
275 | index eb0c2bd90de9..8df4cb6ac6f7 100644 |
276 | --- a/arch/arm64/include/asm/pgtable-hwdef.h |
277 | +++ b/arch/arm64/include/asm/pgtable-hwdef.h |
278 | @@ -272,6 +272,7 @@ |
279 | #define TCR_TG1_4K (UL(2) << TCR_TG1_SHIFT) |
280 | #define TCR_TG1_64K (UL(3) << TCR_TG1_SHIFT) |
281 | |
282 | +#define TCR_A1 (UL(1) << 22) |
283 | #define TCR_ASID16 (UL(1) << 36) |
284 | #define TCR_TBI0 (UL(1) << 37) |
285 | #define TCR_HA (UL(1) << 39) |
286 | diff --git a/arch/arm64/include/asm/pgtable-prot.h b/arch/arm64/include/asm/pgtable-prot.h |
287 | index 2142c7726e76..f705d96a76f2 100644 |
288 | --- a/arch/arm64/include/asm/pgtable-prot.h |
289 | +++ b/arch/arm64/include/asm/pgtable-prot.h |
290 | @@ -34,8 +34,14 @@ |
291 | |
292 | #include <asm/pgtable-types.h> |
293 | |
294 | -#define PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED) |
295 | -#define PROT_SECT_DEFAULT (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S) |
296 | +#define _PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED) |
297 | +#define _PROT_SECT_DEFAULT (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S) |
298 | + |
299 | +#define PTE_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PTE_NG : 0) |
300 | +#define PMD_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PMD_SECT_NG : 0) |
301 | + |
302 | +#define PROT_DEFAULT (_PROT_DEFAULT | PTE_MAYBE_NG) |
303 | +#define PROT_SECT_DEFAULT (_PROT_SECT_DEFAULT | PMD_MAYBE_NG) |
304 | |
305 | #define PROT_DEVICE_nGnRnE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRnE)) |
306 | #define PROT_DEVICE_nGnRE (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_ATTRINDX(MT_DEVICE_nGnRE)) |
307 | @@ -47,23 +53,24 @@ |
308 | #define PROT_SECT_NORMAL (PROT_SECT_DEFAULT | PMD_SECT_PXN | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL)) |
309 | #define PROT_SECT_NORMAL_EXEC (PROT_SECT_DEFAULT | PMD_SECT_UXN | PMD_ATTRINDX(MT_NORMAL)) |
310 | |
311 | -#define _PAGE_DEFAULT (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL)) |
312 | +#define _PAGE_DEFAULT (_PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL)) |
313 | +#define _HYP_PAGE_DEFAULT _PAGE_DEFAULT |
314 | |
315 | -#define PAGE_KERNEL __pgprot(_PAGE_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_WRITE) |
316 | -#define PAGE_KERNEL_RO __pgprot(_PAGE_DEFAULT | PTE_PXN | PTE_UXN | PTE_DIRTY | PTE_RDONLY) |
317 | -#define PAGE_KERNEL_ROX __pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_RDONLY) |
318 | -#define PAGE_KERNEL_EXEC __pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_WRITE) |
319 | -#define PAGE_KERNEL_EXEC_CONT __pgprot(_PAGE_DEFAULT | PTE_UXN | PTE_DIRTY | PTE_WRITE | PTE_CONT) |
320 | +#define PAGE_KERNEL __pgprot(PROT_NORMAL) |
321 | +#define PAGE_KERNEL_RO __pgprot((PROT_NORMAL & ~PTE_WRITE) | PTE_RDONLY) |
322 | +#define PAGE_KERNEL_ROX __pgprot((PROT_NORMAL & ~(PTE_WRITE | PTE_PXN)) | PTE_RDONLY) |
323 | +#define PAGE_KERNEL_EXEC __pgprot(PROT_NORMAL & ~PTE_PXN) |
324 | +#define PAGE_KERNEL_EXEC_CONT __pgprot((PROT_NORMAL & ~PTE_PXN) | PTE_CONT) |
325 | |
326 | -#define PAGE_HYP __pgprot(_PAGE_DEFAULT | PTE_HYP | PTE_HYP_XN) |
327 | -#define PAGE_HYP_EXEC __pgprot(_PAGE_DEFAULT | PTE_HYP | PTE_RDONLY) |
328 | -#define PAGE_HYP_RO __pgprot(_PAGE_DEFAULT | PTE_HYP | PTE_RDONLY | PTE_HYP_XN) |
329 | +#define PAGE_HYP __pgprot(_HYP_PAGE_DEFAULT | PTE_HYP | PTE_HYP_XN) |
330 | +#define PAGE_HYP_EXEC __pgprot(_HYP_PAGE_DEFAULT | PTE_HYP | PTE_RDONLY) |
331 | +#define PAGE_HYP_RO __pgprot(_HYP_PAGE_DEFAULT | PTE_HYP | PTE_RDONLY | PTE_HYP_XN) |
332 | #define PAGE_HYP_DEVICE __pgprot(PROT_DEVICE_nGnRE | PTE_HYP) |
333 | |
334 | -#define PAGE_S2 __pgprot(PROT_DEFAULT | PTE_S2_MEMATTR(MT_S2_NORMAL) | PTE_S2_RDONLY) |
335 | -#define PAGE_S2_DEVICE __pgprot(PROT_DEFAULT | PTE_S2_MEMATTR(MT_S2_DEVICE_nGnRE) | PTE_S2_RDONLY | PTE_UXN) |
336 | +#define PAGE_S2 __pgprot(_PROT_DEFAULT | PTE_S2_MEMATTR(MT_S2_NORMAL) | PTE_S2_RDONLY) |
337 | +#define PAGE_S2_DEVICE __pgprot(_PROT_DEFAULT | PTE_S2_MEMATTR(MT_S2_DEVICE_nGnRE) | PTE_S2_RDONLY | PTE_UXN) |
338 | |
339 | -#define PAGE_NONE __pgprot(((_PAGE_DEFAULT) & ~PTE_VALID) | PTE_PROT_NONE | PTE_PXN | PTE_UXN) |
340 | +#define PAGE_NONE __pgprot(((_PAGE_DEFAULT) & ~PTE_VALID) | PTE_PROT_NONE | PTE_NG | PTE_PXN | PTE_UXN) |
341 | #define PAGE_SHARED __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN | PTE_WRITE) |
342 | #define PAGE_SHARED_EXEC __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_WRITE) |
343 | #define PAGE_COPY __pgprot(_PAGE_DEFAULT | PTE_USER | PTE_NG | PTE_PXN | PTE_UXN) |
344 | diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h |
345 | index 7acd3c5c7643..3a30a3994e4a 100644 |
346 | --- a/arch/arm64/include/asm/pgtable.h |
347 | +++ b/arch/arm64/include/asm/pgtable.h |
348 | @@ -692,6 +692,7 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, |
349 | |
350 | extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; |
351 | extern pgd_t idmap_pg_dir[PTRS_PER_PGD]; |
352 | +extern pgd_t tramp_pg_dir[PTRS_PER_PGD]; |
353 | |
354 | /* |
355 | * Encode and decode a swap entry: |
356 | diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h |
357 | index 14ad6e4e87d1..16cef2e8449e 100644 |
358 | --- a/arch/arm64/include/asm/proc-fns.h |
359 | +++ b/arch/arm64/include/asm/proc-fns.h |
360 | @@ -35,12 +35,6 @@ extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr); |
361 | |
362 | #include <asm/memory.h> |
363 | |
364 | -#define cpu_switch_mm(pgd,mm) \ |
365 | -do { \ |
366 | - BUG_ON(pgd == swapper_pg_dir); \ |
367 | - cpu_do_switch_mm(virt_to_phys(pgd),mm); \ |
368 | -} while (0) |
369 | - |
370 | #endif /* __ASSEMBLY__ */ |
371 | #endif /* __KERNEL__ */ |
372 | #endif /* __ASM_PROCFNS_H */ |
373 | diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h |
374 | index 7393cc767edb..7cb7f7cdcfbc 100644 |
375 | --- a/arch/arm64/include/asm/sysreg.h |
376 | +++ b/arch/arm64/include/asm/sysreg.h |
377 | @@ -117,6 +117,7 @@ |
378 | #define ID_AA64ISAR0_AES_SHIFT 4 |
379 | |
380 | /* id_aa64pfr0 */ |
381 | +#define ID_AA64PFR0_CSV3_SHIFT 60 |
382 | #define ID_AA64PFR0_GIC_SHIFT 24 |
383 | #define ID_AA64PFR0_ASIMD_SHIFT 20 |
384 | #define ID_AA64PFR0_FP_SHIFT 16 |
385 | diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h |
386 | index deab52374119..ad6bd8b26ada 100644 |
387 | --- a/arch/arm64/include/asm/tlbflush.h |
388 | +++ b/arch/arm64/include/asm/tlbflush.h |
389 | @@ -23,6 +23,7 @@ |
390 | |
391 | #include <linux/sched.h> |
392 | #include <asm/cputype.h> |
393 | +#include <asm/mmu.h> |
394 | |
395 | /* |
396 | * Raw TLBI operations. |
397 | @@ -42,6 +43,11 @@ |
398 | |
399 | #define __tlbi(op, ...) __TLBI_N(op, ##__VA_ARGS__, 1, 0) |
400 | |
401 | +#define __tlbi_user(op, arg) do { \ |
402 | + if (arm64_kernel_unmapped_at_el0()) \ |
403 | + __tlbi(op, (arg) | USER_ASID_FLAG); \ |
404 | +} while (0) |
405 | + |
406 | /* |
407 | * TLB Management |
408 | * ============== |
409 | @@ -103,6 +109,7 @@ static inline void flush_tlb_mm(struct mm_struct *mm) |
410 | |
411 | dsb(ishst); |
412 | __tlbi(aside1is, asid); |
413 | + __tlbi_user(aside1is, asid); |
414 | dsb(ish); |
415 | } |
416 | |
417 | @@ -113,6 +120,7 @@ static inline void flush_tlb_page(struct vm_area_struct *vma, |
418 | |
419 | dsb(ishst); |
420 | __tlbi(vale1is, addr); |
421 | + __tlbi_user(vale1is, addr); |
422 | dsb(ish); |
423 | } |
424 | |
425 | @@ -139,10 +147,13 @@ static inline void __flush_tlb_range(struct vm_area_struct *vma, |
426 | |
427 | dsb(ishst); |
428 | for (addr = start; addr < end; addr += 1 << (PAGE_SHIFT - 12)) { |
429 | - if (last_level) |
430 | + if (last_level) { |
431 | __tlbi(vale1is, addr); |
432 | - else |
433 | + __tlbi_user(vale1is, addr); |
434 | + } else { |
435 | __tlbi(vae1is, addr); |
436 | + __tlbi_user(vae1is, addr); |
437 | + } |
438 | } |
439 | dsb(ish); |
440 | } |
441 | @@ -182,6 +193,7 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm, |
442 | unsigned long addr = uaddr >> 12 | (ASID(mm) << 48); |
443 | |
444 | __tlbi(vae1is, addr); |
445 | + __tlbi_user(vae1is, addr); |
446 | dsb(ish); |
447 | } |
448 | |
449 | diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c |
450 | index c58ddf8c4062..5f4bf3c6f016 100644 |
451 | --- a/arch/arm64/kernel/asm-offsets.c |
452 | +++ b/arch/arm64/kernel/asm-offsets.c |
453 | @@ -24,6 +24,7 @@ |
454 | #include <linux/kvm_host.h> |
455 | #include <linux/suspend.h> |
456 | #include <asm/cpufeature.h> |
457 | +#include <asm/fixmap.h> |
458 | #include <asm/thread_info.h> |
459 | #include <asm/memory.h> |
460 | #include <asm/smp_plat.h> |
461 | @@ -144,11 +145,14 @@ int main(void) |
462 | DEFINE(ARM_SMCCC_RES_X2_OFFS, offsetof(struct arm_smccc_res, a2)); |
463 | DEFINE(ARM_SMCCC_QUIRK_ID_OFFS, offsetof(struct arm_smccc_quirk, id)); |
464 | DEFINE(ARM_SMCCC_QUIRK_STATE_OFFS, offsetof(struct arm_smccc_quirk, state)); |
465 | - |
466 | BLANK(); |
467 | DEFINE(HIBERN_PBE_ORIG, offsetof(struct pbe, orig_address)); |
468 | DEFINE(HIBERN_PBE_ADDR, offsetof(struct pbe, address)); |
469 | DEFINE(HIBERN_PBE_NEXT, offsetof(struct pbe, next)); |
470 | DEFINE(ARM64_FTR_SYSVAL, offsetof(struct arm64_ftr_reg, sys_val)); |
471 | + BLANK(); |
472 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
473 | + DEFINE(TRAMP_VALIAS, TRAMP_VALIAS); |
474 | +#endif |
475 | return 0; |
476 | } |
477 | diff --git a/arch/arm64/kernel/cpu-reset.S b/arch/arm64/kernel/cpu-reset.S |
478 | index 65f42d257414..f736a6f81ecd 100644 |
479 | --- a/arch/arm64/kernel/cpu-reset.S |
480 | +++ b/arch/arm64/kernel/cpu-reset.S |
481 | @@ -16,7 +16,7 @@ |
482 | #include <asm/virt.h> |
483 | |
484 | .text |
485 | -.pushsection .idmap.text, "ax" |
486 | +.pushsection .idmap.text, "awx" |
487 | |
488 | /* |
489 | * __cpu_soft_restart(el2_switch, entry, arg0, arg1, arg2) - Helper for |
490 | diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c |
491 | index 3a129d48674e..5056fc597ae9 100644 |
492 | --- a/arch/arm64/kernel/cpufeature.c |
493 | +++ b/arch/arm64/kernel/cpufeature.c |
494 | @@ -93,7 +93,8 @@ static const struct arm64_ftr_bits ftr_id_aa64isar0[] = { |
495 | }; |
496 | |
497 | static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = { |
498 | - ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 32, 32, 0), |
499 | + ARM64_FTR_BITS(FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV3_SHIFT, 4, 0), |
500 | + ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 32, 28, 0), |
501 | ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, 28, 4, 0), |
502 | ARM64_FTR_BITS(FTR_STRICT, FTR_EXACT, ID_AA64PFR0_GIC_SHIFT, 4, 0), |
503 | S_ARM64_FTR_BITS(FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_ASIMD_SHIFT, 4, ID_AA64PFR0_ASIMD_NI), |
504 | @@ -746,6 +747,86 @@ static bool hyp_offset_low(const struct arm64_cpu_capabilities *entry, |
505 | return idmap_addr > GENMASK(VA_BITS - 2, 0) && !is_kernel_in_hyp_mode(); |
506 | } |
507 | |
508 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
509 | +static int __kpti_forced; /* 0: not forced, >0: forced on, <0: forced off */ |
510 | + |
511 | +static bool unmap_kernel_at_el0(const struct arm64_cpu_capabilities *entry, |
512 | + int __unused) |
513 | +{ |
514 | + char const *str = "command line option"; |
515 | + u64 pfr0 = read_system_reg(SYS_ID_AA64PFR0_EL1); |
516 | + |
517 | + /* |
518 | + * For reasons that aren't entirely clear, enabling KPTI on Cavium |
519 | + * ThunderX leads to apparent I-cache corruption of kernel text, which |
520 | + * ends as well as you might imagine. Don't even try. |
521 | + */ |
522 | + if (cpus_have_cap(ARM64_WORKAROUND_CAVIUM_27456)) { |
523 | + str = "ARM64_WORKAROUND_CAVIUM_27456"; |
524 | + __kpti_forced = -1; |
525 | + } |
526 | + |
527 | + /* Forced? */ |
528 | + if (__kpti_forced) { |
529 | + pr_info_once("kernel page table isolation forced %s by %s\n", |
530 | + __kpti_forced > 0 ? "ON" : "OFF", str); |
531 | + return __kpti_forced > 0; |
532 | + } |
533 | + |
534 | + /* Useful for KASLR robustness */ |
535 | + if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) |
536 | + return true; |
537 | + |
538 | + /* Don't force KPTI for CPUs that are not vulnerable */ |
539 | + switch (read_cpuid_id() & MIDR_CPU_MODEL_MASK) { |
540 | + case MIDR_CAVIUM_THUNDERX2: |
541 | + case MIDR_BRCM_VULCAN: |
542 | + return false; |
543 | + } |
544 | + |
545 | + /* Defer to CPU feature registers */ |
546 | + return !cpuid_feature_extract_unsigned_field(pfr0, |
547 | + ID_AA64PFR0_CSV3_SHIFT); |
548 | +} |
549 | + |
550 | +static int kpti_install_ng_mappings(void *__unused) |
551 | +{ |
552 | + typedef void (kpti_remap_fn)(int, int, phys_addr_t); |
553 | + extern kpti_remap_fn idmap_kpti_install_ng_mappings; |
554 | + kpti_remap_fn *remap_fn; |
555 | + |
556 | + static bool kpti_applied = false; |
557 | + int cpu = smp_processor_id(); |
558 | + |
559 | + if (kpti_applied) |
560 | + return 0; |
561 | + |
562 | + remap_fn = (void *)__pa_symbol(idmap_kpti_install_ng_mappings); |
563 | + |
564 | + cpu_install_idmap(); |
565 | + remap_fn(cpu, num_online_cpus(), __pa_symbol(swapper_pg_dir)); |
566 | + cpu_uninstall_idmap(); |
567 | + |
568 | + if (!cpu) |
569 | + kpti_applied = true; |
570 | + |
571 | + return 0; |
572 | +} |
573 | + |
574 | +static int __init parse_kpti(char *str) |
575 | +{ |
576 | + bool enabled; |
577 | + int ret = strtobool(str, &enabled); |
578 | + |
579 | + if (ret) |
580 | + return ret; |
581 | + |
582 | + __kpti_forced = enabled ? 1 : -1; |
583 | + return 0; |
584 | +} |
585 | +__setup("kpti=", parse_kpti); |
586 | +#endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */ |
587 | + |
588 | static const struct arm64_cpu_capabilities arm64_features[] = { |
589 | { |
590 | .desc = "GIC system register CPU interface", |
591 | @@ -829,6 +910,15 @@ static const struct arm64_cpu_capabilities arm64_features[] = { |
592 | .def_scope = SCOPE_SYSTEM, |
593 | .matches = hyp_offset_low, |
594 | }, |
595 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
596 | + { |
597 | + .desc = "Kernel page table isolation (KPTI)", |
598 | + .capability = ARM64_UNMAP_KERNEL_AT_EL0, |
599 | + .def_scope = SCOPE_SYSTEM, |
600 | + .matches = unmap_kernel_at_el0, |
601 | + .enable = kpti_install_ng_mappings, |
602 | + }, |
603 | +#endif |
604 | {}, |
605 | }; |
606 | |
607 | @@ -922,6 +1012,26 @@ static void __init setup_elf_hwcaps(const struct arm64_cpu_capabilities *hwcaps) |
608 | cap_set_elf_hwcap(hwcaps); |
609 | } |
610 | |
611 | +/* |
612 | + * Check if the current CPU has a given feature capability. |
613 | + * Should be called from non-preemptible context. |
614 | + */ |
615 | +static bool __this_cpu_has_cap(const struct arm64_cpu_capabilities *cap_array, |
616 | + unsigned int cap) |
617 | +{ |
618 | + const struct arm64_cpu_capabilities *caps; |
619 | + |
620 | + if (WARN_ON(preemptible())) |
621 | + return false; |
622 | + |
623 | + for (caps = cap_array; caps->desc; caps++) |
624 | + if (caps->capability == cap && |
625 | + caps->matches && |
626 | + caps->matches(caps, SCOPE_LOCAL_CPU)) |
627 | + return true; |
628 | + return false; |
629 | +} |
630 | + |
631 | void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps, |
632 | const char *info) |
633 | { |
634 | @@ -990,8 +1100,9 @@ verify_local_elf_hwcaps(const struct arm64_cpu_capabilities *caps) |
635 | } |
636 | |
637 | static void |
638 | -verify_local_cpu_features(const struct arm64_cpu_capabilities *caps) |
639 | +verify_local_cpu_features(const struct arm64_cpu_capabilities *caps_list) |
640 | { |
641 | + const struct arm64_cpu_capabilities *caps = caps_list; |
642 | for (; caps->matches; caps++) { |
643 | if (!cpus_have_cap(caps->capability)) |
644 | continue; |
645 | @@ -999,7 +1110,7 @@ verify_local_cpu_features(const struct arm64_cpu_capabilities *caps) |
646 | * If the new CPU misses an advertised feature, we cannot proceed |
647 | * further, park the cpu. |
648 | */ |
649 | - if (!caps->matches(caps, SCOPE_LOCAL_CPU)) { |
650 | + if (!__this_cpu_has_cap(caps_list, caps->capability)) { |
651 | pr_crit("CPU%d: missing feature: %s\n", |
652 | smp_processor_id(), caps->desc); |
653 | cpu_die_early(); |
654 | @@ -1052,22 +1163,12 @@ static void __init setup_feature_capabilities(void) |
655 | enable_cpu_capabilities(arm64_features); |
656 | } |
657 | |
658 | -/* |
659 | - * Check if the current CPU has a given feature capability. |
660 | - * Should be called from non-preemptible context. |
661 | - */ |
662 | +extern const struct arm64_cpu_capabilities arm64_errata[]; |
663 | + |
664 | bool this_cpu_has_cap(unsigned int cap) |
665 | { |
666 | - const struct arm64_cpu_capabilities *caps; |
667 | - |
668 | - if (WARN_ON(preemptible())) |
669 | - return false; |
670 | - |
671 | - for (caps = arm64_features; caps->desc; caps++) |
672 | - if (caps->capability == cap && caps->matches) |
673 | - return caps->matches(caps, SCOPE_LOCAL_CPU); |
674 | - |
675 | - return false; |
676 | + return (__this_cpu_has_cap(arm64_features, cap) || |
677 | + __this_cpu_has_cap(arm64_errata, cap)); |
678 | } |
679 | |
680 | void __init setup_cpu_features(void) |
681 | diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S |
682 | index b4c7db434654..8d1600b18562 100644 |
683 | --- a/arch/arm64/kernel/entry.S |
684 | +++ b/arch/arm64/kernel/entry.S |
685 | @@ -29,9 +29,11 @@ |
686 | #include <asm/esr.h> |
687 | #include <asm/irq.h> |
688 | #include <asm/memory.h> |
689 | +#include <asm/mmu.h> |
690 | #include <asm/thread_info.h> |
691 | #include <asm/asm-uaccess.h> |
692 | #include <asm/unistd.h> |
693 | +#include <asm/kernel-pgtable.h> |
694 | |
695 | /* |
696 | * Context tracking subsystem. Used to instrument transitions |
697 | @@ -68,8 +70,31 @@ |
698 | #define BAD_FIQ 2 |
699 | #define BAD_ERROR 3 |
700 | |
701 | - .macro kernel_entry, el, regsize = 64 |
702 | + .macro kernel_ventry, el, label, regsize = 64 |
703 | + .align 7 |
704 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
705 | +alternative_if ARM64_UNMAP_KERNEL_AT_EL0 |
706 | + .if \el == 0 |
707 | + .if \regsize == 64 |
708 | + mrs x30, tpidrro_el0 |
709 | + msr tpidrro_el0, xzr |
710 | + .else |
711 | + mov x30, xzr |
712 | + .endif |
713 | + .endif |
714 | +alternative_else_nop_endif |
715 | +#endif |
716 | + |
717 | sub sp, sp, #S_FRAME_SIZE |
718 | + b el\()\el\()_\label |
719 | + .endm |
720 | + |
721 | + .macro tramp_alias, dst, sym |
722 | + mov_q \dst, TRAMP_VALIAS |
723 | + add \dst, \dst, #(\sym - .entry.tramp.text) |
724 | + .endm |
725 | + |
726 | + .macro kernel_entry, el, regsize = 64 |
727 | .if \regsize == 32 |
728 | mov w0, w0 // zero upper 32 bits of x0 |
729 | .endif |
730 | @@ -150,18 +175,20 @@ |
731 | ct_user_enter |
732 | ldr x23, [sp, #S_SP] // load return stack pointer |
733 | msr sp_el0, x23 |
734 | + tst x22, #PSR_MODE32_BIT // native task? |
735 | + b.eq 3f |
736 | + |
737 | #ifdef CONFIG_ARM64_ERRATUM_845719 |
738 | alternative_if ARM64_WORKAROUND_845719 |
739 | - tbz x22, #4, 1f |
740 | #ifdef CONFIG_PID_IN_CONTEXTIDR |
741 | mrs x29, contextidr_el1 |
742 | msr contextidr_el1, x29 |
743 | #else |
744 | msr contextidr_el1, xzr |
745 | #endif |
746 | -1: |
747 | alternative_else_nop_endif |
748 | #endif |
749 | +3: |
750 | .endif |
751 | msr elr_el1, x21 // set up the return data |
752 | msr spsr_el1, x22 |
753 | @@ -182,7 +209,21 @@ alternative_else_nop_endif |
754 | ldp x28, x29, [sp, #16 * 14] |
755 | ldr lr, [sp, #S_LR] |
756 | add sp, sp, #S_FRAME_SIZE // restore sp |
757 | - eret // return to kernel |
758 | + |
759 | + .if \el == 0 |
760 | +alternative_insn eret, nop, ARM64_UNMAP_KERNEL_AT_EL0 |
761 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
762 | + bne 4f |
763 | + msr far_el1, x30 |
764 | + tramp_alias x30, tramp_exit_native |
765 | + br x30 |
766 | +4: |
767 | + tramp_alias x30, tramp_exit_compat |
768 | + br x30 |
769 | +#endif |
770 | + .else |
771 | + eret |
772 | + .endif |
773 | .endm |
774 | |
775 | .macro get_thread_info, rd |
776 | @@ -257,31 +298,31 @@ tsk .req x28 // current thread_info |
777 | |
778 | .align 11 |
779 | ENTRY(vectors) |
780 | - ventry el1_sync_invalid // Synchronous EL1t |
781 | - ventry el1_irq_invalid // IRQ EL1t |
782 | - ventry el1_fiq_invalid // FIQ EL1t |
783 | - ventry el1_error_invalid // Error EL1t |
784 | + kernel_ventry 1, sync_invalid // Synchronous EL1t |
785 | + kernel_ventry 1, irq_invalid // IRQ EL1t |
786 | + kernel_ventry 1, fiq_invalid // FIQ EL1t |
787 | + kernel_ventry 1, error_invalid // Error EL1t |
788 | |
789 | - ventry el1_sync // Synchronous EL1h |
790 | - ventry el1_irq // IRQ EL1h |
791 | - ventry el1_fiq_invalid // FIQ EL1h |
792 | - ventry el1_error_invalid // Error EL1h |
793 | + kernel_ventry 1, sync // Synchronous EL1h |
794 | + kernel_ventry 1, irq // IRQ EL1h |
795 | + kernel_ventry 1, fiq_invalid // FIQ EL1h |
796 | + kernel_ventry 1, error_invalid // Error EL1h |
797 | |
798 | - ventry el0_sync // Synchronous 64-bit EL0 |
799 | - ventry el0_irq // IRQ 64-bit EL0 |
800 | - ventry el0_fiq_invalid // FIQ 64-bit EL0 |
801 | - ventry el0_error_invalid // Error 64-bit EL0 |
802 | + kernel_ventry 0, sync // Synchronous 64-bit EL0 |
803 | + kernel_ventry 0, irq // IRQ 64-bit EL0 |
804 | + kernel_ventry 0, fiq_invalid // FIQ 64-bit EL0 |
805 | + kernel_ventry 0, error_invalid // Error 64-bit EL0 |
806 | |
807 | #ifdef CONFIG_COMPAT |
808 | - ventry el0_sync_compat // Synchronous 32-bit EL0 |
809 | - ventry el0_irq_compat // IRQ 32-bit EL0 |
810 | - ventry el0_fiq_invalid_compat // FIQ 32-bit EL0 |
811 | - ventry el0_error_invalid_compat // Error 32-bit EL0 |
812 | + kernel_ventry 0, sync_compat, 32 // Synchronous 32-bit EL0 |
813 | + kernel_ventry 0, irq_compat, 32 // IRQ 32-bit EL0 |
814 | + kernel_ventry 0, fiq_invalid_compat, 32 // FIQ 32-bit EL0 |
815 | + kernel_ventry 0, error_invalid_compat, 32 // Error 32-bit EL0 |
816 | #else |
817 | - ventry el0_sync_invalid // Synchronous 32-bit EL0 |
818 | - ventry el0_irq_invalid // IRQ 32-bit EL0 |
819 | - ventry el0_fiq_invalid // FIQ 32-bit EL0 |
820 | - ventry el0_error_invalid // Error 32-bit EL0 |
821 | + kernel_ventry 0, sync_invalid, 32 // Synchronous 32-bit EL0 |
822 | + kernel_ventry 0, irq_invalid, 32 // IRQ 32-bit EL0 |
823 | + kernel_ventry 0, fiq_invalid, 32 // FIQ 32-bit EL0 |
824 | + kernel_ventry 0, error_invalid, 32 // Error 32-bit EL0 |
825 | #endif |
826 | END(vectors) |
827 | |
828 | @@ -801,6 +842,105 @@ __ni_sys_trace: |
829 | |
830 | .popsection // .entry.text |
831 | |
832 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
833 | +/* |
834 | + * Exception vectors trampoline. |
835 | + */ |
836 | + .pushsection ".entry.tramp.text", "ax" |
837 | + |
838 | + .macro tramp_map_kernel, tmp |
839 | + mrs \tmp, ttbr1_el1 |
840 | + sub \tmp, \tmp, #SWAPPER_DIR_SIZE |
841 | + bic \tmp, \tmp, #USER_ASID_FLAG |
842 | + msr ttbr1_el1, \tmp |
843 | + .endm |
844 | + |
845 | + .macro tramp_unmap_kernel, tmp |
846 | + mrs \tmp, ttbr1_el1 |
847 | + add \tmp, \tmp, #SWAPPER_DIR_SIZE |
848 | + orr \tmp, \tmp, #USER_ASID_FLAG |
849 | + msr ttbr1_el1, \tmp |
850 | + /* |
851 | + * We avoid running the post_ttbr_update_workaround here because |
852 | + * it's only needed by Cavium ThunderX, which requires KPTI to be |
853 | + * disabled. |
854 | + */ |
855 | + .endm |
856 | + |
857 | + .macro tramp_ventry, regsize = 64 |
858 | + .align 7 |
859 | +1: |
860 | + .if \regsize == 64 |
861 | + msr tpidrro_el0, x30 // Restored in kernel_ventry |
862 | + .endif |
863 | + /* |
864 | + * Defend against branch aliasing attacks by pushing a dummy |
865 | + * entry onto the return stack and using a RET instruction to |
866 | + * enter the full-fat kernel vectors. |
867 | + */ |
868 | + bl 2f |
869 | + b . |
870 | +2: |
871 | + tramp_map_kernel x30 |
872 | +#ifdef CONFIG_RANDOMIZE_BASE |
873 | + adr x30, tramp_vectors + PAGE_SIZE |
874 | + isb |
875 | + ldr x30, [x30] |
876 | +#else |
877 | + ldr x30, =vectors |
878 | +#endif |
879 | + prfm plil1strm, [x30, #(1b - tramp_vectors)] |
880 | + msr vbar_el1, x30 |
881 | + add x30, x30, #(1b - tramp_vectors) |
882 | + isb |
883 | + ret |
884 | + .endm |
885 | + |
886 | + .macro tramp_exit, regsize = 64 |
887 | + adr x30, tramp_vectors |
888 | + msr vbar_el1, x30 |
889 | + tramp_unmap_kernel x30 |
890 | + .if \regsize == 64 |
891 | + mrs x30, far_el1 |
892 | + .endif |
893 | + eret |
894 | + .endm |
895 | + |
896 | + .align 11 |
897 | +ENTRY(tramp_vectors) |
898 | + .space 0x400 |
899 | + |
900 | + tramp_ventry |
901 | + tramp_ventry |
902 | + tramp_ventry |
903 | + tramp_ventry |
904 | + |
905 | + tramp_ventry 32 |
906 | + tramp_ventry 32 |
907 | + tramp_ventry 32 |
908 | + tramp_ventry 32 |
909 | +END(tramp_vectors) |
910 | + |
911 | +ENTRY(tramp_exit_native) |
912 | + tramp_exit |
913 | +END(tramp_exit_native) |
914 | + |
915 | +ENTRY(tramp_exit_compat) |
916 | + tramp_exit 32 |
917 | +END(tramp_exit_compat) |
918 | + |
919 | + .ltorg |
920 | + .popsection // .entry.tramp.text |
921 | +#ifdef CONFIG_RANDOMIZE_BASE |
922 | + .pushsection ".rodata", "a" |
923 | + .align PAGE_SHIFT |
924 | + .globl __entry_tramp_data_start |
925 | +__entry_tramp_data_start: |
926 | + .quad vectors |
927 | + .popsection // .rodata |
928 | +#endif /* CONFIG_RANDOMIZE_BASE */ |
929 | +#endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */ |
930 | + |
931 | /* |
932 | * Special system call wrappers. |
933 | */ |
934 | diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S |
935 | index 539bebc1222f..fa52817d84c5 100644 |
936 | --- a/arch/arm64/kernel/head.S |
937 | +++ b/arch/arm64/kernel/head.S |
938 | @@ -473,7 +473,7 @@ ENDPROC(__primary_switched) |
939 | * end early head section, begin head code that is also used for |
940 | * hotplug and needs to have the same protections as the text region |
941 | */ |
942 | - .section ".idmap.text","ax" |
943 | + .section ".idmap.text","awx" |
944 | |
945 | ENTRY(kimage_vaddr) |
946 | .quad _text - TEXT_OFFSET |
947 | diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c |
948 | index 0e7394915c70..0972ce58316d 100644 |
949 | --- a/arch/arm64/kernel/process.c |
950 | +++ b/arch/arm64/kernel/process.c |
951 | @@ -306,17 +306,17 @@ int copy_thread(unsigned long clone_flags, unsigned long stack_start, |
952 | |
953 | static void tls_thread_switch(struct task_struct *next) |
954 | { |
955 | - unsigned long tpidr, tpidrro; |
956 | + unsigned long tpidr; |
957 | |
958 | tpidr = read_sysreg(tpidr_el0); |
959 | *task_user_tls(current) = tpidr; |
960 | |
961 | - tpidr = *task_user_tls(next); |
962 | - tpidrro = is_compat_thread(task_thread_info(next)) ? |
963 | - next->thread.tp_value : 0; |
964 | + if (is_compat_thread(task_thread_info(next))) |
965 | + write_sysreg(next->thread.tp_value, tpidrro_el0); |
966 | + else if (!arm64_kernel_unmapped_at_el0()) |
967 | + write_sysreg(0, tpidrro_el0); |
968 | |
969 | - write_sysreg(tpidr, tpidr_el0); |
970 | - write_sysreg(tpidrro, tpidrro_el0); |
971 | + write_sysreg(*task_user_tls(next), tpidr_el0); |
972 | } |
973 | |
974 | /* Restore the UAO state depending on next's addr_limit */ |
975 | diff --git a/arch/arm64/kernel/sleep.S b/arch/arm64/kernel/sleep.S |
976 | index 1bec41b5fda3..0030d6964e65 100644 |
977 | --- a/arch/arm64/kernel/sleep.S |
978 | +++ b/arch/arm64/kernel/sleep.S |
979 | @@ -95,7 +95,7 @@ ENTRY(__cpu_suspend_enter) |
980 | ret |
981 | ENDPROC(__cpu_suspend_enter) |
982 | |
983 | - .pushsection ".idmap.text", "ax" |
984 | + .pushsection ".idmap.text", "awx" |
985 | ENTRY(cpu_resume) |
986 | bl el2_setup // if in EL2 drop to EL1 cleanly |
987 | bl __cpu_setup |
988 | diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S |
989 | index 1105aab1e6d6..6a584558b29d 100644 |
990 | --- a/arch/arm64/kernel/vmlinux.lds.S |
991 | +++ b/arch/arm64/kernel/vmlinux.lds.S |
992 | @@ -56,6 +56,17 @@ jiffies = jiffies_64; |
993 | #define HIBERNATE_TEXT |
994 | #endif |
995 | |
996 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
997 | +#define TRAMP_TEXT \ |
998 | + . = ALIGN(PAGE_SIZE); \ |
999 | + VMLINUX_SYMBOL(__entry_tramp_text_start) = .; \ |
1000 | + *(.entry.tramp.text) \ |
1001 | + . = ALIGN(PAGE_SIZE); \ |
1002 | + VMLINUX_SYMBOL(__entry_tramp_text_end) = .; |
1003 | +#else |
1004 | +#define TRAMP_TEXT |
1005 | +#endif |
1006 | + |
1007 | /* |
1008 | * The size of the PE/COFF section that covers the kernel image, which |
1009 | * runs from stext to _edata, must be a round multiple of the PE/COFF |
1010 | @@ -128,6 +139,7 @@ SECTIONS |
1011 | HYPERVISOR_TEXT |
1012 | IDMAP_TEXT |
1013 | HIBERNATE_TEXT |
1014 | + TRAMP_TEXT |
1015 | *(.fixup) |
1016 | *(.gnu.warning) |
1017 | . = ALIGN(16); |
1018 | @@ -216,6 +228,11 @@ SECTIONS |
1019 | swapper_pg_dir = .; |
1020 | . += SWAPPER_DIR_SIZE; |
1021 | |
1022 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
1023 | + tramp_pg_dir = .; |
1024 | + . += PAGE_SIZE; |
1025 | +#endif |
1026 | + |
1027 | _end = .; |
1028 | |
1029 | STABS_DEBUG |
1030 | @@ -235,7 +252,10 @@ ASSERT(__idmap_text_end - (__idmap_text_start & ~(SZ_4K - 1)) <= SZ_4K, |
1031 | ASSERT(__hibernate_exit_text_end - (__hibernate_exit_text_start & ~(SZ_4K - 1)) |
1032 | <= SZ_4K, "Hibernate exit text too big or misaligned") |
1033 | #endif |
1034 | - |
1035 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
1036 | +ASSERT((__entry_tramp_text_end - __entry_tramp_text_start) == PAGE_SIZE, |
1037 | + "Entry trampoline text too big") |
1038 | +#endif |
1039 | /* |
1040 | * If padding is applied before .head.text, virt<->phys conversions will fail. |
1041 | */ |
1042 | diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c |
1043 | index efcf1f7ef1e4..f00f5eeb556f 100644 |
1044 | --- a/arch/arm64/mm/context.c |
1045 | +++ b/arch/arm64/mm/context.c |
1046 | @@ -39,7 +39,16 @@ static cpumask_t tlb_flush_pending; |
1047 | |
1048 | #define ASID_MASK (~GENMASK(asid_bits - 1, 0)) |
1049 | #define ASID_FIRST_VERSION (1UL << asid_bits) |
1050 | -#define NUM_USER_ASIDS ASID_FIRST_VERSION |
1051 | + |
1052 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
1053 | +#define NUM_USER_ASIDS (ASID_FIRST_VERSION >> 1) |
1054 | +#define asid2idx(asid) (((asid) & ~ASID_MASK) >> 1) |
1055 | +#define idx2asid(idx) (((idx) << 1) & ~ASID_MASK) |
1056 | +#else |
1057 | +#define NUM_USER_ASIDS (ASID_FIRST_VERSION) |
1058 | +#define asid2idx(asid) ((asid) & ~ASID_MASK) |
1059 | +#define idx2asid(idx) asid2idx(idx) |
1060 | +#endif |
1061 | |
1062 | /* Get the ASIDBits supported by the current CPU */ |
1063 | static u32 get_cpu_asid_bits(void) |
1064 | @@ -104,7 +113,7 @@ static void flush_context(unsigned int cpu) |
1065 | */ |
1066 | if (asid == 0) |
1067 | asid = per_cpu(reserved_asids, i); |
1068 | - __set_bit(asid & ~ASID_MASK, asid_map); |
1069 | + __set_bit(asid2idx(asid), asid_map); |
1070 | per_cpu(reserved_asids, i) = asid; |
1071 | } |
1072 | |
1073 | @@ -159,16 +168,16 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu) |
1074 | * We had a valid ASID in a previous life, so try to re-use |
1075 | * it if possible. |
1076 | */ |
1077 | - asid &= ~ASID_MASK; |
1078 | - if (!__test_and_set_bit(asid, asid_map)) |
1079 | + if (!__test_and_set_bit(asid2idx(asid), asid_map)) |
1080 | return newasid; |
1081 | } |
1082 | |
1083 | /* |
1084 | * Allocate a free ASID. If we can't find one, take a note of the |
1085 | - * currently active ASIDs and mark the TLBs as requiring flushes. |
1086 | - * We always count from ASID #1, as we use ASID #0 when setting a |
1087 | - * reserved TTBR0 for the init_mm. |
1088 | + * currently active ASIDs and mark the TLBs as requiring flushes. We |
1089 | + * always count from ASID #2 (index 1), as we use ASID #0 when setting |
1090 | + * a reserved TTBR0 for the init_mm and we allocate ASIDs in even/odd |
1091 | + * pairs. |
1092 | */ |
1093 | asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, cur_idx); |
1094 | if (asid != NUM_USER_ASIDS) |
1095 | @@ -185,7 +194,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu) |
1096 | set_asid: |
1097 | __set_bit(asid, asid_map); |
1098 | cur_idx = asid; |
1099 | - return asid | generation; |
1100 | + return idx2asid(asid) | generation; |
1101 | } |
1102 | |
1103 | void check_and_switch_context(struct mm_struct *mm, unsigned int cpu) |
1104 | diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c |
1105 | index 638f7f2bd79c..4cd4862845cd 100644 |
1106 | --- a/arch/arm64/mm/mmu.c |
1107 | +++ b/arch/arm64/mm/mmu.c |
1108 | @@ -419,6 +419,37 @@ static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end, |
1109 | vm_area_add_early(vma); |
1110 | } |
1111 | |
1112 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
1113 | +static int __init map_entry_trampoline(void) |
1114 | +{ |
1115 | + extern char __entry_tramp_text_start[]; |
1116 | + |
1117 | + pgprot_t prot = rodata_enabled ? PAGE_KERNEL_ROX : PAGE_KERNEL_EXEC; |
1118 | + phys_addr_t pa_start = __pa_symbol(__entry_tramp_text_start); |
1119 | + |
1120 | + /* The trampoline is always mapped and can therefore be global */ |
1121 | + pgprot_val(prot) &= ~PTE_NG; |
1122 | + |
1123 | + /* Map only the text into the trampoline page table */ |
1124 | + memset(tramp_pg_dir, 0, PGD_SIZE); |
1125 | + __create_pgd_mapping(tramp_pg_dir, pa_start, TRAMP_VALIAS, PAGE_SIZE, |
1126 | + prot, pgd_pgtable_alloc, 0); |
1127 | + |
1128 | + /* Map both the text and data into the kernel page table */ |
1129 | + __set_fixmap(FIX_ENTRY_TRAMP_TEXT, pa_start, prot); |
1130 | + if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) { |
1131 | + extern char __entry_tramp_data_start[]; |
1132 | + |
1133 | + __set_fixmap(FIX_ENTRY_TRAMP_DATA, |
1134 | + __pa_symbol(__entry_tramp_data_start), |
1135 | + PAGE_KERNEL_RO); |
1136 | + } |
1137 | + |
1138 | + return 0; |
1139 | +} |
1140 | +core_initcall(map_entry_trampoline); |
1141 | +#endif |
1142 | + |
1143 | /* |
1144 | * Create fine-grained mappings for the kernel. |
1145 | */ |
1146 | diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S |
1147 | index 352c73b6a59e..c07d9cc057e6 100644 |
1148 | --- a/arch/arm64/mm/proc.S |
1149 | +++ b/arch/arm64/mm/proc.S |
1150 | @@ -83,7 +83,7 @@ ENDPROC(cpu_do_suspend) |
1151 | * |
1152 | * x0: Address of context pointer |
1153 | */ |
1154 | - .pushsection ".idmap.text", "ax" |
1155 | + .pushsection ".idmap.text", "awx" |
1156 | ENTRY(cpu_do_resume) |
1157 | ldp x2, x3, [x0] |
1158 | ldp x4, x5, [x0, #16] |
1159 | @@ -132,9 +132,12 @@ ENDPROC(cpu_do_resume) |
1160 | * - pgd_phys - physical address of new TTB |
1161 | */ |
1162 | ENTRY(cpu_do_switch_mm) |
1163 | + mrs x2, ttbr1_el1 |
1164 | mmid x1, x1 // get mm->context.id |
1165 | - bfi x0, x1, #48, #16 // set the ASID |
1166 | - msr ttbr0_el1, x0 // set TTBR0 |
1167 | + bfi x2, x1, #48, #16 // set the ASID |
1168 | + msr ttbr1_el1, x2 // in TTBR1 (since TCR.A1 is set) |
1169 | + isb |
1170 | + msr ttbr0_el1, x0 // now update TTBR0 |
1171 | isb |
1172 | alternative_if ARM64_WORKAROUND_CAVIUM_27456 |
1173 | ic iallu |
1174 | @@ -144,7 +147,17 @@ alternative_else_nop_endif |
1175 | ret |
1176 | ENDPROC(cpu_do_switch_mm) |
1177 | |
1178 | - .pushsection ".idmap.text", "ax" |
1179 | + .pushsection ".idmap.text", "awx" |
1180 | + |
1181 | +.macro __idmap_cpu_set_reserved_ttbr1, tmp1, tmp2 |
1182 | + adrp \tmp1, empty_zero_page |
1183 | + msr ttbr1_el1, \tmp1 |
1184 | + isb |
1185 | + tlbi vmalle1 |
1186 | + dsb nsh |
1187 | + isb |
1188 | +.endm |
1189 | + |
1190 | /* |
1191 | * void idmap_cpu_replace_ttbr1(phys_addr_t new_pgd) |
1192 | * |
1193 | @@ -155,13 +168,7 @@ ENTRY(idmap_cpu_replace_ttbr1) |
1194 | mrs x2, daif |
1195 | msr daifset, #0xf |
1196 | |
1197 | - adrp x1, empty_zero_page |
1198 | - msr ttbr1_el1, x1 |
1199 | - isb |
1200 | - |
1201 | - tlbi vmalle1 |
1202 | - dsb nsh |
1203 | - isb |
1204 | + __idmap_cpu_set_reserved_ttbr1 x1, x3 |
1205 | |
1206 | msr ttbr1_el1, x0 |
1207 | isb |
1208 | @@ -172,13 +179,196 @@ ENTRY(idmap_cpu_replace_ttbr1) |
1209 | ENDPROC(idmap_cpu_replace_ttbr1) |
1210 | .popsection |
1211 | |
1212 | +#ifdef CONFIG_UNMAP_KERNEL_AT_EL0 |
1213 | + .pushsection ".idmap.text", "awx" |
1214 | + |
1215 | + .macro __idmap_kpti_get_pgtable_ent, type |
1216 | + dc cvac, cur_\()\type\()p // Ensure any existing dirty |
1217 | + dmb sy // lines are written back before |
1218 | + ldr \type, [cur_\()\type\()p] // loading the entry |
1219 | + tbz \type, #0, next_\()\type // Skip invalid entries |
1220 | + .endm |
1221 | + |
1222 | + .macro __idmap_kpti_put_pgtable_ent_ng, type |
1223 | + orr \type, \type, #PTE_NG // Same bit for blocks and pages |
1224 | + str \type, [cur_\()\type\()p] // Update the entry and ensure it |
1225 | + dc civac, cur_\()\type\()p // is visible to all CPUs. |
1226 | + .endm |
1227 | + |
1228 | +/* |
1229 | + * void __kpti_install_ng_mappings(int cpu, int num_cpus, phys_addr_t swapper) |
1230 | + * |
1231 | + * Called exactly once from stop_machine context by each CPU found during boot. |
1232 | + */ |
1233 | +__idmap_kpti_flag: |
1234 | + .long 1 |
1235 | +ENTRY(idmap_kpti_install_ng_mappings) |
1236 | + cpu .req w0 |
1237 | + num_cpus .req w1 |
1238 | + swapper_pa .req x2 |
1239 | + swapper_ttb .req x3 |
1240 | + flag_ptr .req x4 |
1241 | + cur_pgdp .req x5 |
1242 | + end_pgdp .req x6 |
1243 | + pgd .req x7 |
1244 | + cur_pudp .req x8 |
1245 | + end_pudp .req x9 |
1246 | + pud .req x10 |
1247 | + cur_pmdp .req x11 |
1248 | + end_pmdp .req x12 |
1249 | + pmd .req x13 |
1250 | + cur_ptep .req x14 |
1251 | + end_ptep .req x15 |
1252 | + pte .req x16 |
1253 | + |
1254 | + mrs swapper_ttb, ttbr1_el1 |
1255 | + adr flag_ptr, __idmap_kpti_flag |
1256 | + |
1257 | + cbnz cpu, __idmap_kpti_secondary |
1258 | + |
1259 | + /* We're the boot CPU. Wait for the others to catch up */ |
1260 | + sevl |
1261 | +1: wfe |
1262 | + ldaxr w18, [flag_ptr] |
1263 | + eor w18, w18, num_cpus |
1264 | + cbnz w18, 1b |
1265 | + |
1266 | + /* We need to walk swapper, so turn off the MMU. */ |
1267 | + mrs x18, sctlr_el1 |
1268 | + bic x18, x18, #SCTLR_ELx_M |
1269 | + msr sctlr_el1, x18 |
1270 | + isb |
1271 | + |
1272 | + /* Everybody is enjoying the idmap, so we can rewrite swapper. */ |
1273 | + /* PGD */ |
1274 | + mov cur_pgdp, swapper_pa |
1275 | + add end_pgdp, cur_pgdp, #(PTRS_PER_PGD * 8) |
1276 | +do_pgd: __idmap_kpti_get_pgtable_ent pgd |
1277 | + tbnz pgd, #1, walk_puds |
1278 | + __idmap_kpti_put_pgtable_ent_ng pgd |
1279 | +next_pgd: |
1280 | + add cur_pgdp, cur_pgdp, #8 |
1281 | + cmp cur_pgdp, end_pgdp |
1282 | + b.ne do_pgd |
1283 | + |
1284 | + /* Publish the updated tables and nuke all the TLBs */ |
1285 | + dsb sy |
1286 | + tlbi vmalle1is |
1287 | + dsb ish |
1288 | + isb |
1289 | + |
1290 | + /* We're done: fire up the MMU again */ |
1291 | + mrs x18, sctlr_el1 |
1292 | + orr x18, x18, #SCTLR_ELx_M |
1293 | + msr sctlr_el1, x18 |
1294 | + isb |
1295 | + |
1296 | + /* Set the flag to zero to indicate that we're all done */ |
1297 | + str wzr, [flag_ptr] |
1298 | + ret |
1299 | + |
1300 | + /* PUD */ |
1301 | +walk_puds: |
1302 | + .if CONFIG_PGTABLE_LEVELS > 3 |
1303 | + pte_to_phys cur_pudp, pgd |
1304 | + add end_pudp, cur_pudp, #(PTRS_PER_PUD * 8) |
1305 | +do_pud: __idmap_kpti_get_pgtable_ent pud |
1306 | + tbnz pud, #1, walk_pmds |
1307 | + __idmap_kpti_put_pgtable_ent_ng pud |
1308 | +next_pud: |
1309 | + add cur_pudp, cur_pudp, 8 |
1310 | + cmp cur_pudp, end_pudp |
1311 | + b.ne do_pud |
1312 | + b next_pgd |
1313 | + .else /* CONFIG_PGTABLE_LEVELS <= 3 */ |
1314 | + mov pud, pgd |
1315 | + b walk_pmds |
1316 | +next_pud: |
1317 | + b next_pgd |
1318 | + .endif |
1319 | + |
1320 | + /* PMD */ |
1321 | +walk_pmds: |
1322 | + .if CONFIG_PGTABLE_LEVELS > 2 |
1323 | + pte_to_phys cur_pmdp, pud |
1324 | + add end_pmdp, cur_pmdp, #(PTRS_PER_PMD * 8) |
1325 | +do_pmd: __idmap_kpti_get_pgtable_ent pmd |
1326 | + tbnz pmd, #1, walk_ptes |
1327 | + __idmap_kpti_put_pgtable_ent_ng pmd |
1328 | +next_pmd: |
1329 | + add cur_pmdp, cur_pmdp, #8 |
1330 | + cmp cur_pmdp, end_pmdp |
1331 | + b.ne do_pmd |
1332 | + b next_pud |
1333 | + .else /* CONFIG_PGTABLE_LEVELS <= 2 */ |
1334 | + mov pmd, pud |
1335 | + b walk_ptes |
1336 | +next_pmd: |
1337 | + b next_pud |
1338 | + .endif |
1339 | + |
1340 | + /* PTE */ |
1341 | +walk_ptes: |
1342 | + pte_to_phys cur_ptep, pmd |
1343 | + add end_ptep, cur_ptep, #(PTRS_PER_PTE * 8) |
1344 | +do_pte: __idmap_kpti_get_pgtable_ent pte |
1345 | + __idmap_kpti_put_pgtable_ent_ng pte |
1346 | +next_pte: |
1347 | + add cur_ptep, cur_ptep, #8 |
1348 | + cmp cur_ptep, end_ptep |
1349 | + b.ne do_pte |
1350 | + b next_pmd |
1351 | + |
1352 | + /* Secondary CPUs end up here */ |
1353 | +__idmap_kpti_secondary: |
1354 | + /* Uninstall swapper before surgery begins */ |
1355 | + __idmap_cpu_set_reserved_ttbr1 x18, x17 |
1356 | + |
1357 | + /* Increment the flag to let the boot CPU we're ready */ |
1358 | +1: ldxr w18, [flag_ptr] |
1359 | + add w18, w18, #1 |
1360 | + stxr w17, w18, [flag_ptr] |
1361 | + cbnz w17, 1b |
1362 | + |
1363 | + /* Wait for the boot CPU to finish messing around with swapper */ |
1364 | + sevl |
1365 | +1: wfe |
1366 | + ldxr w18, [flag_ptr] |
1367 | + cbnz w18, 1b |
1368 | + |
1369 | + /* All done, act like nothing happened */ |
1370 | + msr ttbr1_el1, swapper_ttb |
1371 | + isb |
1372 | + ret |
1373 | + |
1374 | + .unreq cpu |
1375 | + .unreq num_cpus |
1376 | + .unreq swapper_pa |
1377 | + .unreq swapper_ttb |
1378 | + .unreq flag_ptr |
1379 | + .unreq cur_pgdp |
1380 | + .unreq end_pgdp |
1381 | + .unreq pgd |
1382 | + .unreq cur_pudp |
1383 | + .unreq end_pudp |
1384 | + .unreq pud |
1385 | + .unreq cur_pmdp |
1386 | + .unreq end_pmdp |
1387 | + .unreq pmd |
1388 | + .unreq cur_ptep |
1389 | + .unreq end_ptep |
1390 | + .unreq pte |
1391 | +ENDPROC(idmap_kpti_install_ng_mappings) |
1392 | + .popsection |
1393 | +#endif |
1394 | + |
1395 | /* |
1396 | * __cpu_setup |
1397 | * |
1398 | * Initialise the processor for turning the MMU on. Return in x0 the |
1399 | * value of the SCTLR_EL1 register. |
1400 | */ |
1401 | - .pushsection ".idmap.text", "ax" |
1402 | + .pushsection ".idmap.text", "awx" |
1403 | ENTRY(__cpu_setup) |
1404 | tlbi vmalle1 // Invalidate local TLB |
1405 | dsb nsh |
1406 | @@ -222,7 +412,7 @@ ENTRY(__cpu_setup) |
1407 | * both user and kernel. |
1408 | */ |
1409 | ldr x10, =TCR_TxSZ(VA_BITS) | TCR_CACHE_FLAGS | TCR_SMP_FLAGS | \ |
1410 | - TCR_TG_FLAGS | TCR_ASID16 | TCR_TBI0 |
1411 | + TCR_TG_FLAGS | TCR_ASID16 | TCR_TBI0 | TCR_A1 |
1412 | tcr_set_idmap_t0sz x10, x9 |
1413 | |
1414 | /* |
1415 | diff --git a/arch/frv/include/asm/timex.h b/arch/frv/include/asm/timex.h |
1416 | index a89bddefdacf..139093fab326 100644 |
1417 | --- a/arch/frv/include/asm/timex.h |
1418 | +++ b/arch/frv/include/asm/timex.h |
1419 | @@ -16,5 +16,11 @@ static inline cycles_t get_cycles(void) |
1420 | #define vxtime_lock() do {} while (0) |
1421 | #define vxtime_unlock() do {} while (0) |
1422 | |
1423 | +/* This attribute is used in include/linux/jiffies.h alongside with |
1424 | + * __cacheline_aligned_in_smp. It is assumed that __cacheline_aligned_in_smp |
1425 | + * for frv does not contain another section specification. |
1426 | + */ |
1427 | +#define __jiffy_arch_data __attribute__((__section__(".data"))) |
1428 | + |
1429 | #endif |
1430 | |
1431 | diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S |
1432 | index 7614d1dd2c0b..94b5dfb087e9 100644 |
1433 | --- a/arch/powerpc/kernel/exceptions-64s.S |
1434 | +++ b/arch/powerpc/kernel/exceptions-64s.S |
1435 | @@ -723,7 +723,7 @@ EXC_COMMON_BEGIN(bad_addr_slb) |
1436 | ld r3, PACA_EXSLB+EX_DAR(r13) |
1437 | std r3, _DAR(r1) |
1438 | beq cr6, 2f |
1439 | - li r10, 0x480 /* fix trap number for I-SLB miss */ |
1440 | + li r10, 0x481 /* fix trap number for I-SLB miss */ |
1441 | std r10, _TRAP(r1) |
1442 | 2: bl save_nvgprs |
1443 | addi r3, r1, STACK_FRAME_OVERHEAD |
1444 | diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c |
1445 | index 028a22bfa90c..ad713f741ca8 100644 |
1446 | --- a/arch/powerpc/kernel/irq.c |
1447 | +++ b/arch/powerpc/kernel/irq.c |
1448 | @@ -372,6 +372,14 @@ void force_external_irq_replay(void) |
1449 | */ |
1450 | WARN_ON(!arch_irqs_disabled()); |
1451 | |
1452 | + /* |
1453 | + * Interrupts must always be hard disabled before irq_happened is |
1454 | + * modified (to prevent lost update in case of interrupt between |
1455 | + * load and store). |
1456 | + */ |
1457 | + __hard_irq_disable(); |
1458 | + local_paca->irq_happened |= PACA_IRQ_HARD_DIS; |
1459 | + |
1460 | /* Indicate in the PACA that we have an interrupt to replay */ |
1461 | local_paca->irq_happened |= PACA_IRQ_EE; |
1462 | } |
1463 | diff --git a/arch/x86/crypto/cast5_avx_glue.c b/arch/x86/crypto/cast5_avx_glue.c |
1464 | index 8648158f3916..f8fe11d24cde 100644 |
1465 | --- a/arch/x86/crypto/cast5_avx_glue.c |
1466 | +++ b/arch/x86/crypto/cast5_avx_glue.c |
1467 | @@ -66,8 +66,6 @@ static int ecb_crypt(struct blkcipher_desc *desc, struct blkcipher_walk *walk, |
1468 | void (*fn)(struct cast5_ctx *ctx, u8 *dst, const u8 *src); |
1469 | int err; |
1470 | |
1471 | - fn = (enc) ? cast5_ecb_enc_16way : cast5_ecb_dec_16way; |
1472 | - |
1473 | err = blkcipher_walk_virt(desc, walk); |
1474 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
1475 | |
1476 | @@ -79,6 +77,7 @@ static int ecb_crypt(struct blkcipher_desc *desc, struct blkcipher_walk *walk, |
1477 | |
1478 | /* Process multi-block batch */ |
1479 | if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) { |
1480 | + fn = (enc) ? cast5_ecb_enc_16way : cast5_ecb_dec_16way; |
1481 | do { |
1482 | fn(ctx, wdst, wsrc); |
1483 | |
1484 | diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c |
1485 | index b8d3f1b60331..91c48cdfe81f 100644 |
1486 | --- a/arch/x86/kernel/kprobes/core.c |
1487 | +++ b/arch/x86/kernel/kprobes/core.c |
1488 | @@ -51,6 +51,7 @@ |
1489 | #include <linux/ftrace.h> |
1490 | #include <linux/frame.h> |
1491 | #include <linux/kasan.h> |
1492 | +#include <linux/moduleloader.h> |
1493 | |
1494 | #include <asm/text-patching.h> |
1495 | #include <asm/cacheflush.h> |
1496 | @@ -405,6 +406,14 @@ int __copy_instruction(u8 *dest, u8 *src) |
1497 | return length; |
1498 | } |
1499 | |
1500 | +/* Recover page to RW mode before releasing it */ |
1501 | +void free_insn_page(void *page) |
1502 | +{ |
1503 | + set_memory_nx((unsigned long)page & PAGE_MASK, 1); |
1504 | + set_memory_rw((unsigned long)page & PAGE_MASK, 1); |
1505 | + module_memfree(page); |
1506 | +} |
1507 | + |
1508 | static int arch_copy_kprobe(struct kprobe *p) |
1509 | { |
1510 | int ret; |
1511 | diff --git a/block/bio.c b/block/bio.c |
1512 | index 07f287b14cff..4f93345c6a82 100644 |
1513 | --- a/block/bio.c |
1514 | +++ b/block/bio.c |
1515 | @@ -42,9 +42,9 @@ |
1516 | * break badly! cannot be bigger than what you can fit into an |
1517 | * unsigned short |
1518 | */ |
1519 | -#define BV(x) { .nr_vecs = x, .name = "biovec-"__stringify(x) } |
1520 | +#define BV(x, n) { .nr_vecs = x, .name = "biovec-"#n } |
1521 | static struct biovec_slab bvec_slabs[BVEC_POOL_NR] __read_mostly = { |
1522 | - BV(1), BV(4), BV(16), BV(64), BV(128), BV(BIO_MAX_PAGES), |
1523 | + BV(1, 1), BV(4, 4), BV(16, 16), BV(64, 64), BV(128, 128), BV(BIO_MAX_PAGES, max), |
1524 | }; |
1525 | #undef BV |
1526 | |
1527 | diff --git a/block/partitions/msdos.c b/block/partitions/msdos.c |
1528 | index 5610cd537da7..7d8d50c11ce7 100644 |
1529 | --- a/block/partitions/msdos.c |
1530 | +++ b/block/partitions/msdos.c |
1531 | @@ -300,7 +300,9 @@ static void parse_bsd(struct parsed_partitions *state, |
1532 | continue; |
1533 | bsd_start = le32_to_cpu(p->p_offset); |
1534 | bsd_size = le32_to_cpu(p->p_size); |
1535 | - if (memcmp(flavour, "bsd\0", 4) == 0) |
1536 | + /* FreeBSD has relative offset if C partition offset is zero */ |
1537 | + if (memcmp(flavour, "bsd\0", 4) == 0 && |
1538 | + le32_to_cpu(l->d_partitions[2].p_offset) == 0) |
1539 | bsd_start += offset; |
1540 | if (offset == bsd_start && size == bsd_size) |
1541 | /* full parent partition, we have it already */ |
1542 | diff --git a/crypto/ahash.c b/crypto/ahash.c |
1543 | index 14402ef6d826..90d73a22f129 100644 |
1544 | --- a/crypto/ahash.c |
1545 | +++ b/crypto/ahash.c |
1546 | @@ -91,13 +91,14 @@ int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err) |
1547 | |
1548 | if (nbytes && walk->offset & alignmask && !err) { |
1549 | walk->offset = ALIGN(walk->offset, alignmask + 1); |
1550 | - walk->data += walk->offset; |
1551 | - |
1552 | nbytes = min(nbytes, |
1553 | ((unsigned int)(PAGE_SIZE)) - walk->offset); |
1554 | walk->entrylen -= nbytes; |
1555 | |
1556 | - return nbytes; |
1557 | + if (nbytes) { |
1558 | + walk->data += walk->offset; |
1559 | + return nbytes; |
1560 | + } |
1561 | } |
1562 | |
1563 | if (walk->flags & CRYPTO_ALG_ASYNC) |
1564 | diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c |
1565 | index b86273fdf48e..3cfd879267b2 100644 |
1566 | --- a/drivers/block/mtip32xx/mtip32xx.c |
1567 | +++ b/drivers/block/mtip32xx/mtip32xx.c |
1568 | @@ -169,25 +169,6 @@ static bool mtip_check_surprise_removal(struct pci_dev *pdev) |
1569 | return false; /* device present */ |
1570 | } |
1571 | |
1572 | -/* we have to use runtime tag to setup command header */ |
1573 | -static void mtip_init_cmd_header(struct request *rq) |
1574 | -{ |
1575 | - struct driver_data *dd = rq->q->queuedata; |
1576 | - struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq); |
1577 | - u32 host_cap_64 = readl(dd->mmio + HOST_CAP) & HOST_CAP_64; |
1578 | - |
1579 | - /* Point the command headers at the command tables. */ |
1580 | - cmd->command_header = dd->port->command_list + |
1581 | - (sizeof(struct mtip_cmd_hdr) * rq->tag); |
1582 | - cmd->command_header_dma = dd->port->command_list_dma + |
1583 | - (sizeof(struct mtip_cmd_hdr) * rq->tag); |
1584 | - |
1585 | - if (host_cap_64) |
1586 | - cmd->command_header->ctbau = __force_bit2int cpu_to_le32((cmd->command_dma >> 16) >> 16); |
1587 | - |
1588 | - cmd->command_header->ctba = __force_bit2int cpu_to_le32(cmd->command_dma & 0xFFFFFFFF); |
1589 | -} |
1590 | - |
1591 | static struct mtip_cmd *mtip_get_int_command(struct driver_data *dd) |
1592 | { |
1593 | struct request *rq; |
1594 | @@ -199,9 +180,6 @@ static struct mtip_cmd *mtip_get_int_command(struct driver_data *dd) |
1595 | if (IS_ERR(rq)) |
1596 | return NULL; |
1597 | |
1598 | - /* Internal cmd isn't submitted via .queue_rq */ |
1599 | - mtip_init_cmd_header(rq); |
1600 | - |
1601 | return blk_mq_rq_to_pdu(rq); |
1602 | } |
1603 | |
1604 | @@ -3833,8 +3811,6 @@ static int mtip_queue_rq(struct blk_mq_hw_ctx *hctx, |
1605 | struct request *rq = bd->rq; |
1606 | int ret; |
1607 | |
1608 | - mtip_init_cmd_header(rq); |
1609 | - |
1610 | if (unlikely(mtip_check_unal_depth(hctx, rq))) |
1611 | return BLK_MQ_RQ_QUEUE_BUSY; |
1612 | |
1613 | @@ -3866,6 +3842,7 @@ static int mtip_init_cmd(void *data, struct request *rq, unsigned int hctx_idx, |
1614 | { |
1615 | struct driver_data *dd = data; |
1616 | struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq); |
1617 | + u32 host_cap_64 = readl(dd->mmio + HOST_CAP) & HOST_CAP_64; |
1618 | |
1619 | /* |
1620 | * For flush requests, request_idx starts at the end of the |
1621 | @@ -3882,6 +3859,17 @@ static int mtip_init_cmd(void *data, struct request *rq, unsigned int hctx_idx, |
1622 | |
1623 | memset(cmd->command, 0, CMD_DMA_ALLOC_SZ); |
1624 | |
1625 | + /* Point the command headers at the command tables. */ |
1626 | + cmd->command_header = dd->port->command_list + |
1627 | + (sizeof(struct mtip_cmd_hdr) * request_idx); |
1628 | + cmd->command_header_dma = dd->port->command_list_dma + |
1629 | + (sizeof(struct mtip_cmd_hdr) * request_idx); |
1630 | + |
1631 | + if (host_cap_64) |
1632 | + cmd->command_header->ctbau = __force_bit2int cpu_to_le32((cmd->command_dma >> 16) >> 16); |
1633 | + |
1634 | + cmd->command_header->ctba = __force_bit2int cpu_to_le32(cmd->command_dma & 0xFFFFFFFF); |
1635 | + |
1636 | sg_init_table(cmd->sg, MTIP_MAX_SG); |
1637 | return 0; |
1638 | } |
1639 | diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c |
1640 | index b0bb99a821bd..1b1dccd37fbd 100644 |
1641 | --- a/drivers/hid/hid-sony.c |
1642 | +++ b/drivers/hid/hid-sony.c |
1643 | @@ -1056,7 +1056,6 @@ struct sony_sc { |
1644 | u8 battery_charging; |
1645 | u8 battery_capacity; |
1646 | u8 led_state[MAX_LEDS]; |
1647 | - u8 resume_led_state[MAX_LEDS]; |
1648 | u8 led_delay_on[MAX_LEDS]; |
1649 | u8 led_delay_off[MAX_LEDS]; |
1650 | u8 led_count; |
1651 | @@ -1793,6 +1792,7 @@ static int sony_leds_init(struct sony_sc *sc) |
1652 | led->name = name; |
1653 | led->brightness = sc->led_state[n]; |
1654 | led->max_brightness = max_brightness[n]; |
1655 | + led->flags = LED_CORE_SUSPENDRESUME; |
1656 | led->brightness_get = sony_led_get_brightness; |
1657 | led->brightness_set = sony_led_set_brightness; |
1658 | |
1659 | @@ -2509,47 +2509,32 @@ static void sony_remove(struct hid_device *hdev) |
1660 | |
1661 | static int sony_suspend(struct hid_device *hdev, pm_message_t message) |
1662 | { |
1663 | - /* |
1664 | - * On suspend save the current LED state, |
1665 | - * stop running force-feedback and blank the LEDS. |
1666 | - */ |
1667 | - if (SONY_LED_SUPPORT || SONY_FF_SUPPORT) { |
1668 | - struct sony_sc *sc = hid_get_drvdata(hdev); |
1669 | - |
1670 | #ifdef CONFIG_SONY_FF |
1671 | - sc->left = sc->right = 0; |
1672 | -#endif |
1673 | |
1674 | - memcpy(sc->resume_led_state, sc->led_state, |
1675 | - sizeof(sc->resume_led_state)); |
1676 | - memset(sc->led_state, 0, sizeof(sc->led_state)); |
1677 | + /* On suspend stop any running force-feedback events */ |
1678 | + if (SONY_FF_SUPPORT) { |
1679 | + struct sony_sc *sc = hid_get_drvdata(hdev); |
1680 | |
1681 | + sc->left = sc->right = 0; |
1682 | sony_send_output_report(sc); |
1683 | } |
1684 | |
1685 | +#endif |
1686 | return 0; |
1687 | } |
1688 | |
1689 | static int sony_resume(struct hid_device *hdev) |
1690 | { |
1691 | - /* Restore the state of controller LEDs on resume */ |
1692 | - if (SONY_LED_SUPPORT) { |
1693 | - struct sony_sc *sc = hid_get_drvdata(hdev); |
1694 | - |
1695 | - memcpy(sc->led_state, sc->resume_led_state, |
1696 | - sizeof(sc->led_state)); |
1697 | - |
1698 | - /* |
1699 | - * The Sixaxis and navigation controllers on USB need to be |
1700 | - * reinitialized on resume or they won't behave properly. |
1701 | - */ |
1702 | - if ((sc->quirks & SIXAXIS_CONTROLLER_USB) || |
1703 | - (sc->quirks & NAVIGATION_CONTROLLER_USB)) { |
1704 | - sixaxis_set_operational_usb(sc->hdev); |
1705 | - sc->defer_initialization = 1; |
1706 | - } |
1707 | + struct sony_sc *sc = hid_get_drvdata(hdev); |
1708 | |
1709 | - sony_set_leds(sc); |
1710 | + /* |
1711 | + * The Sixaxis and navigation controllers on USB need to be |
1712 | + * reinitialized on resume or they won't behave properly. |
1713 | + */ |
1714 | + if ((sc->quirks & SIXAXIS_CONTROLLER_USB) || |
1715 | + (sc->quirks & NAVIGATION_CONTROLLER_USB)) { |
1716 | + sixaxis_set_operational_usb(sc->hdev); |
1717 | + sc->defer_initialization = 1; |
1718 | } |
1719 | |
1720 | return 0; |
1721 | diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c |
1722 | index fb4ce0394ac7..978b8d94f9a4 100644 |
1723 | --- a/drivers/infiniband/core/addr.c |
1724 | +++ b/drivers/infiniband/core/addr.c |
1725 | @@ -209,6 +209,22 @@ int rdma_addr_size(struct sockaddr *addr) |
1726 | } |
1727 | EXPORT_SYMBOL(rdma_addr_size); |
1728 | |
1729 | +int rdma_addr_size_in6(struct sockaddr_in6 *addr) |
1730 | +{ |
1731 | + int ret = rdma_addr_size((struct sockaddr *) addr); |
1732 | + |
1733 | + return ret <= sizeof(*addr) ? ret : 0; |
1734 | +} |
1735 | +EXPORT_SYMBOL(rdma_addr_size_in6); |
1736 | + |
1737 | +int rdma_addr_size_kss(struct __kernel_sockaddr_storage *addr) |
1738 | +{ |
1739 | + int ret = rdma_addr_size((struct sockaddr *) addr); |
1740 | + |
1741 | + return ret <= sizeof(*addr) ? ret : 0; |
1742 | +} |
1743 | +EXPORT_SYMBOL(rdma_addr_size_kss); |
1744 | + |
1745 | static struct rdma_addr_client self; |
1746 | |
1747 | void rdma_addr_register_client(struct rdma_addr_client *client) |
1748 | diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c |
1749 | index 017a09ceba3f..4d732810f6fc 100644 |
1750 | --- a/drivers/infiniband/core/ucma.c |
1751 | +++ b/drivers/infiniband/core/ucma.c |
1752 | @@ -132,7 +132,7 @@ static inline struct ucma_context *_ucma_find_context(int id, |
1753 | ctx = idr_find(&ctx_idr, id); |
1754 | if (!ctx) |
1755 | ctx = ERR_PTR(-ENOENT); |
1756 | - else if (ctx->file != file) |
1757 | + else if (ctx->file != file || !ctx->cm_id) |
1758 | ctx = ERR_PTR(-EINVAL); |
1759 | return ctx; |
1760 | } |
1761 | @@ -454,6 +454,7 @@ static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf, |
1762 | struct rdma_ucm_create_id cmd; |
1763 | struct rdma_ucm_create_id_resp resp; |
1764 | struct ucma_context *ctx; |
1765 | + struct rdma_cm_id *cm_id; |
1766 | enum ib_qp_type qp_type; |
1767 | int ret; |
1768 | |
1769 | @@ -474,10 +475,10 @@ static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf, |
1770 | return -ENOMEM; |
1771 | |
1772 | ctx->uid = cmd.uid; |
1773 | - ctx->cm_id = rdma_create_id(current->nsproxy->net_ns, |
1774 | - ucma_event_handler, ctx, cmd.ps, qp_type); |
1775 | - if (IS_ERR(ctx->cm_id)) { |
1776 | - ret = PTR_ERR(ctx->cm_id); |
1777 | + cm_id = rdma_create_id(current->nsproxy->net_ns, |
1778 | + ucma_event_handler, ctx, cmd.ps, qp_type); |
1779 | + if (IS_ERR(cm_id)) { |
1780 | + ret = PTR_ERR(cm_id); |
1781 | goto err1; |
1782 | } |
1783 | |
1784 | @@ -487,14 +488,19 @@ static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf, |
1785 | ret = -EFAULT; |
1786 | goto err2; |
1787 | } |
1788 | + |
1789 | + ctx->cm_id = cm_id; |
1790 | return 0; |
1791 | |
1792 | err2: |
1793 | - rdma_destroy_id(ctx->cm_id); |
1794 | + rdma_destroy_id(cm_id); |
1795 | err1: |
1796 | mutex_lock(&mut); |
1797 | idr_remove(&ctx_idr, ctx->id); |
1798 | mutex_unlock(&mut); |
1799 | + mutex_lock(&file->mut); |
1800 | + list_del(&ctx->list); |
1801 | + mutex_unlock(&file->mut); |
1802 | kfree(ctx); |
1803 | return ret; |
1804 | } |
1805 | @@ -624,6 +630,9 @@ static ssize_t ucma_bind_ip(struct ucma_file *file, const char __user *inbuf, |
1806 | if (copy_from_user(&cmd, inbuf, sizeof(cmd))) |
1807 | return -EFAULT; |
1808 | |
1809 | + if (!rdma_addr_size_in6(&cmd.addr)) |
1810 | + return -EINVAL; |
1811 | + |
1812 | ctx = ucma_get_ctx(file, cmd.id); |
1813 | if (IS_ERR(ctx)) |
1814 | return PTR_ERR(ctx); |
1815 | @@ -637,22 +646,21 @@ static ssize_t ucma_bind(struct ucma_file *file, const char __user *inbuf, |
1816 | int in_len, int out_len) |
1817 | { |
1818 | struct rdma_ucm_bind cmd; |
1819 | - struct sockaddr *addr; |
1820 | struct ucma_context *ctx; |
1821 | int ret; |
1822 | |
1823 | if (copy_from_user(&cmd, inbuf, sizeof(cmd))) |
1824 | return -EFAULT; |
1825 | |
1826 | - addr = (struct sockaddr *) &cmd.addr; |
1827 | - if (cmd.reserved || !cmd.addr_size || (cmd.addr_size != rdma_addr_size(addr))) |
1828 | + if (cmd.reserved || !cmd.addr_size || |
1829 | + cmd.addr_size != rdma_addr_size_kss(&cmd.addr)) |
1830 | return -EINVAL; |
1831 | |
1832 | ctx = ucma_get_ctx(file, cmd.id); |
1833 | if (IS_ERR(ctx)) |
1834 | return PTR_ERR(ctx); |
1835 | |
1836 | - ret = rdma_bind_addr(ctx->cm_id, addr); |
1837 | + ret = rdma_bind_addr(ctx->cm_id, (struct sockaddr *) &cmd.addr); |
1838 | ucma_put_ctx(ctx); |
1839 | return ret; |
1840 | } |
1841 | @@ -668,13 +676,16 @@ static ssize_t ucma_resolve_ip(struct ucma_file *file, |
1842 | if (copy_from_user(&cmd, inbuf, sizeof(cmd))) |
1843 | return -EFAULT; |
1844 | |
1845 | + if (!rdma_addr_size_in6(&cmd.src_addr) || |
1846 | + !rdma_addr_size_in6(&cmd.dst_addr)) |
1847 | + return -EINVAL; |
1848 | + |
1849 | ctx = ucma_get_ctx(file, cmd.id); |
1850 | if (IS_ERR(ctx)) |
1851 | return PTR_ERR(ctx); |
1852 | |
1853 | ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr, |
1854 | - (struct sockaddr *) &cmd.dst_addr, |
1855 | - cmd.timeout_ms); |
1856 | + (struct sockaddr *) &cmd.dst_addr, cmd.timeout_ms); |
1857 | ucma_put_ctx(ctx); |
1858 | return ret; |
1859 | } |
1860 | @@ -684,24 +695,23 @@ static ssize_t ucma_resolve_addr(struct ucma_file *file, |
1861 | int in_len, int out_len) |
1862 | { |
1863 | struct rdma_ucm_resolve_addr cmd; |
1864 | - struct sockaddr *src, *dst; |
1865 | struct ucma_context *ctx; |
1866 | int ret; |
1867 | |
1868 | if (copy_from_user(&cmd, inbuf, sizeof(cmd))) |
1869 | return -EFAULT; |
1870 | |
1871 | - src = (struct sockaddr *) &cmd.src_addr; |
1872 | - dst = (struct sockaddr *) &cmd.dst_addr; |
1873 | - if (cmd.reserved || (cmd.src_size && (cmd.src_size != rdma_addr_size(src))) || |
1874 | - !cmd.dst_size || (cmd.dst_size != rdma_addr_size(dst))) |
1875 | + if (cmd.reserved || |
1876 | + (cmd.src_size && (cmd.src_size != rdma_addr_size_kss(&cmd.src_addr))) || |
1877 | + !cmd.dst_size || (cmd.dst_size != rdma_addr_size_kss(&cmd.dst_addr))) |
1878 | return -EINVAL; |
1879 | |
1880 | ctx = ucma_get_ctx(file, cmd.id); |
1881 | if (IS_ERR(ctx)) |
1882 | return PTR_ERR(ctx); |
1883 | |
1884 | - ret = rdma_resolve_addr(ctx->cm_id, src, dst, cmd.timeout_ms); |
1885 | + ret = rdma_resolve_addr(ctx->cm_id, (struct sockaddr *) &cmd.src_addr, |
1886 | + (struct sockaddr *) &cmd.dst_addr, cmd.timeout_ms); |
1887 | ucma_put_ctx(ctx); |
1888 | return ret; |
1889 | } |
1890 | @@ -1146,6 +1156,11 @@ static ssize_t ucma_init_qp_attr(struct ucma_file *file, |
1891 | if (IS_ERR(ctx)) |
1892 | return PTR_ERR(ctx); |
1893 | |
1894 | + if (!ctx->cm_id->device) { |
1895 | + ret = -EINVAL; |
1896 | + goto out; |
1897 | + } |
1898 | + |
1899 | resp.qp_attr_mask = 0; |
1900 | memset(&qp_attr, 0, sizeof qp_attr); |
1901 | qp_attr.qp_state = cmd.qp_state; |
1902 | @@ -1302,7 +1317,7 @@ static ssize_t ucma_notify(struct ucma_file *file, const char __user *inbuf, |
1903 | { |
1904 | struct rdma_ucm_notify cmd; |
1905 | struct ucma_context *ctx; |
1906 | - int ret; |
1907 | + int ret = -EINVAL; |
1908 | |
1909 | if (copy_from_user(&cmd, inbuf, sizeof(cmd))) |
1910 | return -EFAULT; |
1911 | @@ -1311,7 +1326,9 @@ static ssize_t ucma_notify(struct ucma_file *file, const char __user *inbuf, |
1912 | if (IS_ERR(ctx)) |
1913 | return PTR_ERR(ctx); |
1914 | |
1915 | - ret = rdma_notify(ctx->cm_id, (enum ib_event_type) cmd.event); |
1916 | + if (ctx->cm_id->device) |
1917 | + ret = rdma_notify(ctx->cm_id, (enum ib_event_type)cmd.event); |
1918 | + |
1919 | ucma_put_ctx(ctx); |
1920 | return ret; |
1921 | } |
1922 | @@ -1397,7 +1414,7 @@ static ssize_t ucma_join_ip_multicast(struct ucma_file *file, |
1923 | join_cmd.response = cmd.response; |
1924 | join_cmd.uid = cmd.uid; |
1925 | join_cmd.id = cmd.id; |
1926 | - join_cmd.addr_size = rdma_addr_size((struct sockaddr *) &cmd.addr); |
1927 | + join_cmd.addr_size = rdma_addr_size_in6(&cmd.addr); |
1928 | if (!join_cmd.addr_size) |
1929 | return -EINVAL; |
1930 | |
1931 | @@ -1416,7 +1433,7 @@ static ssize_t ucma_join_multicast(struct ucma_file *file, |
1932 | if (copy_from_user(&cmd, inbuf, sizeof(cmd))) |
1933 | return -EFAULT; |
1934 | |
1935 | - if (!rdma_addr_size((struct sockaddr *)&cmd.addr)) |
1936 | + if (!rdma_addr_size_kss(&cmd.addr)) |
1937 | return -EINVAL; |
1938 | |
1939 | return ucma_process_join(file, &cmd, out_len); |
1940 | diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c |
1941 | index af83d2e34913..a8a96def0ba2 100644 |
1942 | --- a/drivers/input/mouse/alps.c |
1943 | +++ b/drivers/input/mouse/alps.c |
1944 | @@ -2538,13 +2538,31 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4], |
1945 | } |
1946 | |
1947 | static int alps_update_dual_info_ss4_v2(unsigned char otp[][4], |
1948 | - struct alps_data *priv) |
1949 | + struct alps_data *priv, |
1950 | + struct psmouse *psmouse) |
1951 | { |
1952 | bool is_dual = false; |
1953 | + int reg_val = 0; |
1954 | + struct ps2dev *ps2dev = &psmouse->ps2dev; |
1955 | |
1956 | - if (IS_SS4PLUS_DEV(priv->dev_id)) |
1957 | + if (IS_SS4PLUS_DEV(priv->dev_id)) { |
1958 | is_dual = (otp[0][0] >> 4) & 0x01; |
1959 | |
1960 | + if (!is_dual) { |
1961 | + /* For support TrackStick of Thinkpad L/E series */ |
1962 | + if (alps_exit_command_mode(psmouse) == 0 && |
1963 | + alps_enter_command_mode(psmouse) == 0) { |
1964 | + reg_val = alps_command_mode_read_reg(psmouse, |
1965 | + 0xD7); |
1966 | + } |
1967 | + alps_exit_command_mode(psmouse); |
1968 | + ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); |
1969 | + |
1970 | + if (reg_val == 0x0C || reg_val == 0x1D) |
1971 | + is_dual = true; |
1972 | + } |
1973 | + } |
1974 | + |
1975 | if (is_dual) |
1976 | priv->flags |= ALPS_DUALPOINT | |
1977 | ALPS_DUALPOINT_WITH_PRESSURE; |
1978 | @@ -2567,7 +2585,7 @@ static int alps_set_defaults_ss4_v2(struct psmouse *psmouse, |
1979 | |
1980 | alps_update_btn_info_ss4_v2(otp, priv); |
1981 | |
1982 | - alps_update_dual_info_ss4_v2(otp, priv); |
1983 | + alps_update_dual_info_ss4_v2(otp, priv, psmouse); |
1984 | |
1985 | return 0; |
1986 | } |
1987 | diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c |
1988 | index b604564dec5c..30328e57fdda 100644 |
1989 | --- a/drivers/input/mousedev.c |
1990 | +++ b/drivers/input/mousedev.c |
1991 | @@ -15,6 +15,7 @@ |
1992 | #define MOUSEDEV_MINORS 31 |
1993 | #define MOUSEDEV_MIX 63 |
1994 | |
1995 | +#include <linux/bitops.h> |
1996 | #include <linux/sched.h> |
1997 | #include <linux/slab.h> |
1998 | #include <linux/poll.h> |
1999 | @@ -103,7 +104,7 @@ struct mousedev_client { |
2000 | spinlock_t packet_lock; |
2001 | int pos_x, pos_y; |
2002 | |
2003 | - signed char ps2[6]; |
2004 | + u8 ps2[6]; |
2005 | unsigned char ready, buffer, bufsiz; |
2006 | unsigned char imexseq, impsseq; |
2007 | enum mousedev_emul mode; |
2008 | @@ -291,11 +292,10 @@ static void mousedev_notify_readers(struct mousedev *mousedev, |
2009 | } |
2010 | |
2011 | client->pos_x += packet->dx; |
2012 | - client->pos_x = client->pos_x < 0 ? |
2013 | - 0 : (client->pos_x >= xres ? xres : client->pos_x); |
2014 | + client->pos_x = clamp_val(client->pos_x, 0, xres); |
2015 | + |
2016 | client->pos_y += packet->dy; |
2017 | - client->pos_y = client->pos_y < 0 ? |
2018 | - 0 : (client->pos_y >= yres ? yres : client->pos_y); |
2019 | + client->pos_y = clamp_val(client->pos_y, 0, yres); |
2020 | |
2021 | p->dx += packet->dx; |
2022 | p->dy += packet->dy; |
2023 | @@ -571,44 +571,50 @@ static int mousedev_open(struct inode *inode, struct file *file) |
2024 | return error; |
2025 | } |
2026 | |
2027 | -static inline int mousedev_limit_delta(int delta, int limit) |
2028 | -{ |
2029 | - return delta > limit ? limit : (delta < -limit ? -limit : delta); |
2030 | -} |
2031 | - |
2032 | -static void mousedev_packet(struct mousedev_client *client, |
2033 | - signed char *ps2_data) |
2034 | +static void mousedev_packet(struct mousedev_client *client, u8 *ps2_data) |
2035 | { |
2036 | struct mousedev_motion *p = &client->packets[client->tail]; |
2037 | + s8 dx, dy, dz; |
2038 | + |
2039 | + dx = clamp_val(p->dx, -127, 127); |
2040 | + p->dx -= dx; |
2041 | + |
2042 | + dy = clamp_val(p->dy, -127, 127); |
2043 | + p->dy -= dy; |
2044 | |
2045 | - ps2_data[0] = 0x08 | |
2046 | - ((p->dx < 0) << 4) | ((p->dy < 0) << 5) | (p->buttons & 0x07); |
2047 | - ps2_data[1] = mousedev_limit_delta(p->dx, 127); |
2048 | - ps2_data[2] = mousedev_limit_delta(p->dy, 127); |
2049 | - p->dx -= ps2_data[1]; |
2050 | - p->dy -= ps2_data[2]; |
2051 | + ps2_data[0] = BIT(3); |
2052 | + ps2_data[0] |= ((dx & BIT(7)) >> 3) | ((dy & BIT(7)) >> 2); |
2053 | + ps2_data[0] |= p->buttons & 0x07; |
2054 | + ps2_data[1] = dx; |
2055 | + ps2_data[2] = dy; |
2056 | |
2057 | switch (client->mode) { |
2058 | case MOUSEDEV_EMUL_EXPS: |
2059 | - ps2_data[3] = mousedev_limit_delta(p->dz, 7); |
2060 | - p->dz -= ps2_data[3]; |
2061 | - ps2_data[3] = (ps2_data[3] & 0x0f) | ((p->buttons & 0x18) << 1); |
2062 | + dz = clamp_val(p->dz, -7, 7); |
2063 | + p->dz -= dz; |
2064 | + |
2065 | + ps2_data[3] = (dz & 0x0f) | ((p->buttons & 0x18) << 1); |
2066 | client->bufsiz = 4; |
2067 | break; |
2068 | |
2069 | case MOUSEDEV_EMUL_IMPS: |
2070 | - ps2_data[0] |= |
2071 | - ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1); |
2072 | - ps2_data[3] = mousedev_limit_delta(p->dz, 127); |
2073 | - p->dz -= ps2_data[3]; |
2074 | + dz = clamp_val(p->dz, -127, 127); |
2075 | + p->dz -= dz; |
2076 | + |
2077 | + ps2_data[0] |= ((p->buttons & 0x10) >> 3) | |
2078 | + ((p->buttons & 0x08) >> 1); |
2079 | + ps2_data[3] = dz; |
2080 | + |
2081 | client->bufsiz = 4; |
2082 | break; |
2083 | |
2084 | case MOUSEDEV_EMUL_PS2: |
2085 | default: |
2086 | - ps2_data[0] |= |
2087 | - ((p->buttons & 0x10) >> 3) | ((p->buttons & 0x08) >> 1); |
2088 | p->dz = 0; |
2089 | + |
2090 | + ps2_data[0] |= ((p->buttons & 0x10) >> 3) | |
2091 | + ((p->buttons & 0x08) >> 1); |
2092 | + |
2093 | client->bufsiz = 3; |
2094 | break; |
2095 | } |
2096 | @@ -714,7 +720,7 @@ static ssize_t mousedev_read(struct file *file, char __user *buffer, |
2097 | { |
2098 | struct mousedev_client *client = file->private_data; |
2099 | struct mousedev *mousedev = client->mousedev; |
2100 | - signed char data[sizeof(client->ps2)]; |
2101 | + u8 data[sizeof(client->ps2)]; |
2102 | int retval = 0; |
2103 | |
2104 | if (!client->ready && !client->buffer && mousedev->exist && |
2105 | diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h |
2106 | index d1051e3ce819..e484ea2dc787 100644 |
2107 | --- a/drivers/input/serio/i8042-x86ia64io.h |
2108 | +++ b/drivers/input/serio/i8042-x86ia64io.h |
2109 | @@ -530,6 +530,20 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = { |
2110 | { } |
2111 | }; |
2112 | |
2113 | +static const struct dmi_system_id i8042_dmi_forcemux_table[] __initconst = { |
2114 | + { |
2115 | + /* |
2116 | + * Sony Vaio VGN-CS series require MUX or the touch sensor |
2117 | + * buttons will disturb touchpad operation |
2118 | + */ |
2119 | + .matches = { |
2120 | + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), |
2121 | + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-CS"), |
2122 | + }, |
2123 | + }, |
2124 | + { } |
2125 | +}; |
2126 | + |
2127 | /* |
2128 | * On some Asus laptops, just running self tests cause problems. |
2129 | */ |
2130 | @@ -692,6 +706,13 @@ static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = { |
2131 | DMI_MATCH(DMI_PRODUCT_NAME, "20046"), |
2132 | }, |
2133 | }, |
2134 | + { |
2135 | + /* Lenovo ThinkPad L460 */ |
2136 | + .matches = { |
2137 | + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), |
2138 | + DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L460"), |
2139 | + }, |
2140 | + }, |
2141 | { |
2142 | /* Clevo P650RS, 650RP6, Sager NP8152-S, and others */ |
2143 | .matches = { |
2144 | @@ -1223,6 +1244,9 @@ static int __init i8042_platform_init(void) |
2145 | if (dmi_check_system(i8042_dmi_nomux_table)) |
2146 | i8042_nomux = true; |
2147 | |
2148 | + if (dmi_check_system(i8042_dmi_forcemux_table)) |
2149 | + i8042_nomux = false; |
2150 | + |
2151 | if (dmi_check_system(i8042_dmi_notimeout_table)) |
2152 | i8042_notimeout = true; |
2153 | |
2154 | diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c |
2155 | index a68c650aad11..b67414b5a64e 100644 |
2156 | --- a/drivers/md/dm-ioctl.c |
2157 | +++ b/drivers/md/dm-ioctl.c |
2158 | @@ -1777,12 +1777,12 @@ static int validate_params(uint cmd, struct dm_ioctl *param) |
2159 | cmd == DM_LIST_VERSIONS_CMD) |
2160 | return 0; |
2161 | |
2162 | - if ((cmd == DM_DEV_CREATE_CMD)) { |
2163 | + if (cmd == DM_DEV_CREATE_CMD) { |
2164 | if (!*param->name) { |
2165 | DMWARN("name not supplied when creating device"); |
2166 | return -EINVAL; |
2167 | } |
2168 | - } else if ((*param->uuid && *param->name)) { |
2169 | + } else if (*param->uuid && *param->name) { |
2170 | DMWARN("only supply one of name or uuid, cmd(%u)", cmd); |
2171 | return -EINVAL; |
2172 | } |
2173 | diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c |
2174 | index 18a4271bf569..6a7b9b1dcfe3 100644 |
2175 | --- a/drivers/md/raid10.c |
2176 | +++ b/drivers/md/raid10.c |
2177 | @@ -3681,6 +3681,7 @@ static int raid10_run(struct mddev *mddev) |
2178 | |
2179 | if (blk_queue_discard(bdev_get_queue(rdev->bdev))) |
2180 | discard_supported = true; |
2181 | + first = 0; |
2182 | } |
2183 | |
2184 | if (mddev->queue) { |
2185 | diff --git a/drivers/media/usb/usbtv/usbtv-core.c b/drivers/media/usb/usbtv/usbtv-core.c |
2186 | index 0324633ede42..e56a49a5e8b1 100644 |
2187 | --- a/drivers/media/usb/usbtv/usbtv-core.c |
2188 | +++ b/drivers/media/usb/usbtv/usbtv-core.c |
2189 | @@ -109,6 +109,8 @@ static int usbtv_probe(struct usb_interface *intf, |
2190 | return 0; |
2191 | |
2192 | usbtv_audio_fail: |
2193 | + /* we must not free at this point */ |
2194 | + usb_get_dev(usbtv->udev); |
2195 | usbtv_video_free(usbtv); |
2196 | |
2197 | usbtv_video_fail: |
2198 | diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c |
2199 | index 41f318631c6d..60f5a8ded8dd 100644 |
2200 | --- a/drivers/misc/mei/main.c |
2201 | +++ b/drivers/misc/mei/main.c |
2202 | @@ -551,7 +551,6 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data) |
2203 | break; |
2204 | |
2205 | default: |
2206 | - dev_err(dev->dev, ": unsupported ioctl %d.\n", cmd); |
2207 | rets = -ENOIOCTLCMD; |
2208 | } |
2209 | |
2210 | diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c |
2211 | index 7c0b27d132b1..b479bd81120b 100644 |
2212 | --- a/drivers/mtd/chips/jedec_probe.c |
2213 | +++ b/drivers/mtd/chips/jedec_probe.c |
2214 | @@ -1889,6 +1889,8 @@ static inline u32 jedec_read_mfr(struct map_info *map, uint32_t base, |
2215 | do { |
2216 | uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8), map, cfi); |
2217 | mask = (1 << (cfi->device_type * 8)) - 1; |
2218 | + if (ofs >= map->size) |
2219 | + return 0; |
2220 | result = map_read(map, base + ofs); |
2221 | bank++; |
2222 | } while ((result.x[0] & mask) == CFI_MFR_CONTINUATION); |
2223 | diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c |
2224 | index 651f308cdc60..fca2e428cd86 100644 |
2225 | --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c |
2226 | +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c |
2227 | @@ -1680,6 +1680,30 @@ static void xgene_enet_napi_add(struct xgene_enet_pdata *pdata) |
2228 | } |
2229 | } |
2230 | |
2231 | +#ifdef CONFIG_ACPI |
2232 | +static const struct acpi_device_id xgene_enet_acpi_match[] = { |
2233 | + { "APMC0D05", XGENE_ENET1}, |
2234 | + { "APMC0D30", XGENE_ENET1}, |
2235 | + { "APMC0D31", XGENE_ENET1}, |
2236 | + { "APMC0D3F", XGENE_ENET1}, |
2237 | + { "APMC0D26", XGENE_ENET2}, |
2238 | + { "APMC0D25", XGENE_ENET2}, |
2239 | + { } |
2240 | +}; |
2241 | +MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match); |
2242 | +#endif |
2243 | + |
2244 | +static const struct of_device_id xgene_enet_of_match[] = { |
2245 | + {.compatible = "apm,xgene-enet", .data = (void *)XGENE_ENET1}, |
2246 | + {.compatible = "apm,xgene1-sgenet", .data = (void *)XGENE_ENET1}, |
2247 | + {.compatible = "apm,xgene1-xgenet", .data = (void *)XGENE_ENET1}, |
2248 | + {.compatible = "apm,xgene2-sgenet", .data = (void *)XGENE_ENET2}, |
2249 | + {.compatible = "apm,xgene2-xgenet", .data = (void *)XGENE_ENET2}, |
2250 | + {}, |
2251 | +}; |
2252 | + |
2253 | +MODULE_DEVICE_TABLE(of, xgene_enet_of_match); |
2254 | + |
2255 | static int xgene_enet_probe(struct platform_device *pdev) |
2256 | { |
2257 | struct net_device *ndev; |
2258 | @@ -1826,32 +1850,6 @@ static void xgene_enet_shutdown(struct platform_device *pdev) |
2259 | xgene_enet_remove(pdev); |
2260 | } |
2261 | |
2262 | -#ifdef CONFIG_ACPI |
2263 | -static const struct acpi_device_id xgene_enet_acpi_match[] = { |
2264 | - { "APMC0D05", XGENE_ENET1}, |
2265 | - { "APMC0D30", XGENE_ENET1}, |
2266 | - { "APMC0D31", XGENE_ENET1}, |
2267 | - { "APMC0D3F", XGENE_ENET1}, |
2268 | - { "APMC0D26", XGENE_ENET2}, |
2269 | - { "APMC0D25", XGENE_ENET2}, |
2270 | - { } |
2271 | -}; |
2272 | -MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match); |
2273 | -#endif |
2274 | - |
2275 | -#ifdef CONFIG_OF |
2276 | -static const struct of_device_id xgene_enet_of_match[] = { |
2277 | - {.compatible = "apm,xgene-enet", .data = (void *)XGENE_ENET1}, |
2278 | - {.compatible = "apm,xgene1-sgenet", .data = (void *)XGENE_ENET1}, |
2279 | - {.compatible = "apm,xgene1-xgenet", .data = (void *)XGENE_ENET1}, |
2280 | - {.compatible = "apm,xgene2-sgenet", .data = (void *)XGENE_ENET2}, |
2281 | - {.compatible = "apm,xgene2-xgenet", .data = (void *)XGENE_ENET2}, |
2282 | - {}, |
2283 | -}; |
2284 | - |
2285 | -MODULE_DEVICE_TABLE(of, xgene_enet_of_match); |
2286 | -#endif |
2287 | - |
2288 | static struct platform_driver xgene_enet_driver = { |
2289 | .driver = { |
2290 | .name = "xgene-enet", |
2291 | diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c |
2292 | index 34b5e699a1d5..02a03bccde7b 100644 |
2293 | --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c |
2294 | +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c |
2295 | @@ -671,7 +671,7 @@ static void hns_gmac_get_strings(u32 stringset, u8 *data) |
2296 | |
2297 | static int hns_gmac_get_sset_count(int stringset) |
2298 | { |
2299 | - if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS) |
2300 | + if (stringset == ETH_SS_STATS) |
2301 | return ARRAY_SIZE(g_gmac_stats_string); |
2302 | |
2303 | return 0; |
2304 | diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c |
2305 | index 4ecb809785f9..6ea872287307 100644 |
2306 | --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c |
2307 | +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c |
2308 | @@ -422,7 +422,7 @@ void hns_ppe_update_stats(struct hns_ppe_cb *ppe_cb) |
2309 | |
2310 | int hns_ppe_get_sset_count(int stringset) |
2311 | { |
2312 | - if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS) |
2313 | + if (stringset == ETH_SS_STATS) |
2314 | return ETH_PPE_STATIC_NUM; |
2315 | return 0; |
2316 | } |
2317 | diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c |
2318 | index fbbbbffd58dc..f3be9ac47bfb 100644 |
2319 | --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c |
2320 | +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c |
2321 | @@ -798,7 +798,7 @@ void hns_rcb_get_stats(struct hnae_queue *queue, u64 *data) |
2322 | */ |
2323 | int hns_rcb_get_ring_sset_count(int stringset) |
2324 | { |
2325 | - if (stringset == ETH_SS_STATS || stringset == ETH_SS_PRIV_FLAGS) |
2326 | + if (stringset == ETH_SS_STATS) |
2327 | return HNS_RING_STATIC_REG_NUM; |
2328 | |
2329 | return 0; |
2330 | diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c |
2331 | index 86a496d71995..6be0cae44e9b 100644 |
2332 | --- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c |
2333 | +++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c |
2334 | @@ -1017,8 +1017,10 @@ int hns_get_sset_count(struct net_device *netdev, int stringset) |
2335 | cnt--; |
2336 | |
2337 | return cnt; |
2338 | - } else { |
2339 | + } else if (stringset == ETH_SS_STATS) { |
2340 | return (HNS_NET_STATS_CNT + ops->get_sset_count(h, stringset)); |
2341 | + } else { |
2342 | + return -EOPNOTSUPP; |
2343 | } |
2344 | } |
2345 | |
2346 | diff --git a/drivers/net/phy/mdio-xgene.c b/drivers/net/phy/mdio-xgene.c |
2347 | index 39be3b82608f..20fbcc9c4687 100644 |
2348 | --- a/drivers/net/phy/mdio-xgene.c |
2349 | +++ b/drivers/net/phy/mdio-xgene.c |
2350 | @@ -314,6 +314,30 @@ static acpi_status acpi_register_phy(acpi_handle handle, u32 lvl, |
2351 | } |
2352 | #endif |
2353 | |
2354 | +static const struct of_device_id xgene_mdio_of_match[] = { |
2355 | + { |
2356 | + .compatible = "apm,xgene-mdio-rgmii", |
2357 | + .data = (void *)XGENE_MDIO_RGMII |
2358 | + }, |
2359 | + { |
2360 | + .compatible = "apm,xgene-mdio-xfi", |
2361 | + .data = (void *)XGENE_MDIO_XFI |
2362 | + }, |
2363 | + {}, |
2364 | +}; |
2365 | +MODULE_DEVICE_TABLE(of, xgene_mdio_of_match); |
2366 | + |
2367 | +#ifdef CONFIG_ACPI |
2368 | +static const struct acpi_device_id xgene_mdio_acpi_match[] = { |
2369 | + { "APMC0D65", XGENE_MDIO_RGMII }, |
2370 | + { "APMC0D66", XGENE_MDIO_XFI }, |
2371 | + { } |
2372 | +}; |
2373 | + |
2374 | +MODULE_DEVICE_TABLE(acpi, xgene_mdio_acpi_match); |
2375 | +#endif |
2376 | + |
2377 | + |
2378 | static int xgene_mdio_probe(struct platform_device *pdev) |
2379 | { |
2380 | struct device *dev = &pdev->dev; |
2381 | @@ -439,32 +463,6 @@ static int xgene_mdio_remove(struct platform_device *pdev) |
2382 | return 0; |
2383 | } |
2384 | |
2385 | -#ifdef CONFIG_OF |
2386 | -static const struct of_device_id xgene_mdio_of_match[] = { |
2387 | - { |
2388 | - .compatible = "apm,xgene-mdio-rgmii", |
2389 | - .data = (void *)XGENE_MDIO_RGMII |
2390 | - }, |
2391 | - { |
2392 | - .compatible = "apm,xgene-mdio-xfi", |
2393 | - .data = (void *)XGENE_MDIO_XFI |
2394 | - }, |
2395 | - {}, |
2396 | -}; |
2397 | - |
2398 | -MODULE_DEVICE_TABLE(of, xgene_mdio_of_match); |
2399 | -#endif |
2400 | - |
2401 | -#ifdef CONFIG_ACPI |
2402 | -static const struct acpi_device_id xgene_mdio_acpi_match[] = { |
2403 | - { "APMC0D65", XGENE_MDIO_RGMII }, |
2404 | - { "APMC0D66", XGENE_MDIO_XFI }, |
2405 | - { } |
2406 | -}; |
2407 | - |
2408 | -MODULE_DEVICE_TABLE(acpi, xgene_mdio_acpi_match); |
2409 | -#endif |
2410 | - |
2411 | static struct platform_driver xgene_mdio_driver = { |
2412 | .driver = { |
2413 | .name = "xgene-mdio", |
2414 | diff --git a/drivers/net/phy/mdio-xgene.h b/drivers/net/phy/mdio-xgene.h |
2415 | index 354241b53c1d..594a11d42401 100644 |
2416 | --- a/drivers/net/phy/mdio-xgene.h |
2417 | +++ b/drivers/net/phy/mdio-xgene.h |
2418 | @@ -132,10 +132,6 @@ static inline u64 xgene_enet_get_field_value(int pos, int len, u64 src) |
2419 | #define GET_BIT(field, src) \ |
2420 | xgene_enet_get_field_value(field ## _POS, 1, src) |
2421 | |
2422 | -static const struct of_device_id xgene_mdio_of_match[]; |
2423 | -#ifdef CONFIG_ACPI |
2424 | -static const struct acpi_device_id xgene_mdio_acpi_match[]; |
2425 | -#endif |
2426 | int xgene_mdio_rgmii_read(struct mii_bus *bus, int phy_id, int reg); |
2427 | int xgene_mdio_rgmii_write(struct mii_bus *bus, int phy_id, int reg, u16 data); |
2428 | struct phy_device *xgene_enet_phy_register(struct mii_bus *bus, int phy_addr); |
2429 | diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c |
2430 | index 78530d1714dc..bdce0679674c 100644 |
2431 | --- a/drivers/parport/parport_pc.c |
2432 | +++ b/drivers/parport/parport_pc.c |
2433 | @@ -2646,6 +2646,7 @@ enum parport_pc_pci_cards { |
2434 | netmos_9901, |
2435 | netmos_9865, |
2436 | quatech_sppxp100, |
2437 | + wch_ch382l, |
2438 | }; |
2439 | |
2440 | |
2441 | @@ -2708,6 +2709,7 @@ static struct parport_pc_pci { |
2442 | /* netmos_9901 */ { 1, { { 0, -1 }, } }, |
2443 | /* netmos_9865 */ { 1, { { 0, -1 }, } }, |
2444 | /* quatech_sppxp100 */ { 1, { { 0, 1 }, } }, |
2445 | + /* wch_ch382l */ { 1, { { 2, -1 }, } }, |
2446 | }; |
2447 | |
2448 | static const struct pci_device_id parport_pc_pci_tbl[] = { |
2449 | @@ -2797,6 +2799,8 @@ static const struct pci_device_id parport_pc_pci_tbl[] = { |
2450 | /* Quatech SPPXP-100 Parallel port PCI ExpressCard */ |
2451 | { PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SPPXP_100, |
2452 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, quatech_sppxp100 }, |
2453 | + /* WCH CH382L PCI-E single parallel port card */ |
2454 | + { 0x1c00, 0x3050, 0x1c00, 0x3050, 0, 0, wch_ch382l }, |
2455 | { 0, } /* terminate list */ |
2456 | }; |
2457 | MODULE_DEVICE_TABLE(pci, parport_pc_pci_tbl); |
2458 | diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c |
2459 | index a98be6db7e93..56340abe4fc6 100644 |
2460 | --- a/drivers/pci/probe.c |
2461 | +++ b/drivers/pci/probe.c |
2462 | @@ -231,7 +231,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, |
2463 | res->flags |= IORESOURCE_ROM_ENABLE; |
2464 | l64 = l & PCI_ROM_ADDRESS_MASK; |
2465 | sz64 = sz & PCI_ROM_ADDRESS_MASK; |
2466 | - mask64 = (u32)PCI_ROM_ADDRESS_MASK; |
2467 | + mask64 = PCI_ROM_ADDRESS_MASK; |
2468 | } |
2469 | |
2470 | if (res->flags & IORESOURCE_MEM_64) { |
2471 | diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c |
2472 | index 4bc589ee78d0..85774b7a316a 100644 |
2473 | --- a/drivers/pci/setup-res.c |
2474 | +++ b/drivers/pci/setup-res.c |
2475 | @@ -63,7 +63,7 @@ static void pci_std_update_resource(struct pci_dev *dev, int resno) |
2476 | mask = (u32)PCI_BASE_ADDRESS_IO_MASK; |
2477 | new |= res->flags & ~PCI_BASE_ADDRESS_IO_MASK; |
2478 | } else if (resno == PCI_ROM_RESOURCE) { |
2479 | - mask = (u32)PCI_ROM_ADDRESS_MASK; |
2480 | + mask = PCI_ROM_ADDRESS_MASK; |
2481 | } else { |
2482 | mask = (u32)PCI_BASE_ADDRESS_MEM_MASK; |
2483 | new |= res->flags & ~PCI_BASE_ADDRESS_MEM_MASK; |
2484 | diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c |
2485 | index 8f4adc1d9588..cbc8e9388268 100644 |
2486 | --- a/drivers/scsi/virtio_scsi.c |
2487 | +++ b/drivers/scsi/virtio_scsi.c |
2488 | @@ -819,6 +819,7 @@ static struct scsi_host_template virtscsi_host_template_multi = { |
2489 | .change_queue_depth = virtscsi_change_queue_depth, |
2490 | .eh_abort_handler = virtscsi_abort, |
2491 | .eh_device_reset_handler = virtscsi_device_reset, |
2492 | + .slave_alloc = virtscsi_device_alloc, |
2493 | |
2494 | .can_queue = 1024, |
2495 | .dma_boundary = UINT_MAX, |
2496 | diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig |
2497 | index 0e7415f6d093..b7995474148c 100644 |
2498 | --- a/drivers/spi/Kconfig |
2499 | +++ b/drivers/spi/Kconfig |
2500 | @@ -156,7 +156,6 @@ config SPI_BCM63XX_HSSPI |
2501 | config SPI_BCM_QSPI |
2502 | tristate "Broadcom BSPI and MSPI controller support" |
2503 | depends on ARCH_BRCMSTB || ARCH_BCM || ARCH_BCM_IPROC || COMPILE_TEST |
2504 | - depends on MTD_NORFLASH |
2505 | default ARCH_BCM_IPROC |
2506 | help |
2507 | Enables support for the Broadcom SPI flash and MSPI controller. |
2508 | diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c |
2509 | index 02fb96797ac8..0d8f43a17edb 100644 |
2510 | --- a/drivers/spi/spi-davinci.c |
2511 | +++ b/drivers/spi/spi-davinci.c |
2512 | @@ -646,7 +646,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t) |
2513 | buf = t->rx_buf; |
2514 | t->rx_dma = dma_map_single(&spi->dev, buf, |
2515 | t->len, DMA_FROM_DEVICE); |
2516 | - if (dma_mapping_error(&spi->dev, !t->rx_dma)) { |
2517 | + if (dma_mapping_error(&spi->dev, t->rx_dma)) { |
2518 | ret = -EFAULT; |
2519 | goto err_rx_map; |
2520 | } |
2521 | diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c |
2522 | index a574885ffba9..18c5312f7886 100644 |
2523 | --- a/drivers/staging/comedi/drivers/ni_mio_common.c |
2524 | +++ b/drivers/staging/comedi/drivers/ni_mio_common.c |
2525 | @@ -1284,6 +1284,8 @@ static void ack_a_interrupt(struct comedi_device *dev, unsigned short a_status) |
2526 | ack |= NISTC_INTA_ACK_AI_START; |
2527 | if (a_status & NISTC_AI_STATUS1_STOP) |
2528 | ack |= NISTC_INTA_ACK_AI_STOP; |
2529 | + if (a_status & NISTC_AI_STATUS1_OVER) |
2530 | + ack |= NISTC_INTA_ACK_AI_ERR; |
2531 | if (ack) |
2532 | ni_stc_writew(dev, ack, NISTC_INTA_ACK_REG); |
2533 | } |
2534 | diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c |
2535 | index 68c7bb0b7991..9e1ac58e269e 100644 |
2536 | --- a/drivers/tty/vt/vt.c |
2537 | +++ b/drivers/tty/vt/vt.c |
2538 | @@ -1354,6 +1354,11 @@ static void csi_m(struct vc_data *vc) |
2539 | case 3: |
2540 | vc->vc_italic = 1; |
2541 | break; |
2542 | + case 21: |
2543 | + /* |
2544 | + * No console drivers support double underline, so |
2545 | + * convert it to a single underline. |
2546 | + */ |
2547 | case 4: |
2548 | vc->vc_underline = 1; |
2549 | break; |
2550 | @@ -1389,7 +1394,6 @@ static void csi_m(struct vc_data *vc) |
2551 | vc->vc_disp_ctrl = 1; |
2552 | vc->vc_toggle_meta = 1; |
2553 | break; |
2554 | - case 21: |
2555 | case 22: |
2556 | vc->vc_intensity = 1; |
2557 | break; |
2558 | diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c |
2559 | index dfc0566bb155..919a32153060 100644 |
2560 | --- a/drivers/usb/dwc2/hcd.c |
2561 | +++ b/drivers/usb/dwc2/hcd.c |
2562 | @@ -3220,7 +3220,6 @@ static void dwc2_conn_id_status_change(struct work_struct *work) |
2563 | dwc2_core_init(hsotg, false); |
2564 | dwc2_enable_global_interrupts(hsotg); |
2565 | spin_lock_irqsave(&hsotg->lock, flags); |
2566 | - dwc2_hsotg_disconnect(hsotg); |
2567 | dwc2_hsotg_core_init_disconnected(hsotg, false); |
2568 | spin_unlock_irqrestore(&hsotg->lock, flags); |
2569 | dwc2_hsotg_core_connect(hsotg); |
2570 | @@ -3238,8 +3237,12 @@ static void dwc2_conn_id_status_change(struct work_struct *work) |
2571 | if (count > 250) |
2572 | dev_err(hsotg->dev, |
2573 | "Connection id status change timed out\n"); |
2574 | - hsotg->op_state = OTG_STATE_A_HOST; |
2575 | |
2576 | + spin_lock_irqsave(&hsotg->lock, flags); |
2577 | + dwc2_hsotg_disconnect(hsotg); |
2578 | + spin_unlock_irqrestore(&hsotg->lock, flags); |
2579 | + |
2580 | + hsotg->op_state = OTG_STATE_A_HOST; |
2581 | /* Initialize the Core for Host mode */ |
2582 | dwc2_core_init(hsotg, false); |
2583 | dwc2_enable_global_interrupts(hsotg); |
2584 | diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c |
2585 | index e97539fc127e..7d658565b20f 100644 |
2586 | --- a/drivers/usb/gadget/udc/core.c |
2587 | +++ b/drivers/usb/gadget/udc/core.c |
2588 | @@ -139,10 +139,8 @@ int usb_ep_disable(struct usb_ep *ep) |
2589 | goto out; |
2590 | |
2591 | ret = ep->ops->disable(ep); |
2592 | - if (ret) { |
2593 | - ret = ret; |
2594 | + if (ret) |
2595 | goto out; |
2596 | - } |
2597 | |
2598 | ep->enabled = false; |
2599 | |
2600 | diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c |
2601 | index 3178d8afb3e6..cab80acace4e 100644 |
2602 | --- a/drivers/usb/serial/cp210x.c |
2603 | +++ b/drivers/usb/serial/cp210x.c |
2604 | @@ -152,6 +152,7 @@ static const struct usb_device_id id_table[] = { |
2605 | { USB_DEVICE(0x12B8, 0xEC62) }, /* Link G4+ ECU */ |
2606 | { USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */ |
2607 | { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ |
2608 | + { USB_DEVICE(0x155A, 0x1006) }, /* ELDAT Easywave RX09 */ |
2609 | { USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */ |
2610 | { USB_DEVICE(0x166A, 0x0301) }, /* Clipsal 5800PC C-Bus Wireless PC Interface */ |
2611 | { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ |
2612 | diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c |
2613 | index 0c743e4cca1e..71cbc6890ac4 100644 |
2614 | --- a/drivers/usb/serial/ftdi_sio.c |
2615 | +++ b/drivers/usb/serial/ftdi_sio.c |
2616 | @@ -773,6 +773,7 @@ static const struct usb_device_id id_table_combined[] = { |
2617 | .driver_info = (kernel_ulong_t)&ftdi_NDI_device_quirk }, |
2618 | { USB_DEVICE(TELLDUS_VID, TELLDUS_TELLSTICK_PID) }, |
2619 | { USB_DEVICE(NOVITUS_VID, NOVITUS_BONO_E_PID) }, |
2620 | + { USB_DEVICE(FTDI_VID, RTSYSTEMS_USB_VX8_PID) }, |
2621 | { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_S03_PID) }, |
2622 | { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_59_PID) }, |
2623 | { USB_DEVICE(RTSYSTEMS_VID, RTSYSTEMS_USB_57A_PID) }, |
2624 | @@ -935,6 +936,7 @@ static const struct usb_device_id id_table_combined[] = { |
2625 | { USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) }, |
2626 | { USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) }, |
2627 | { USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) }, |
2628 | + { USB_DEVICE(FTDI_VID, FTDI_FHE_PID) }, |
2629 | { USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) }, |
2630 | { USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID), |
2631 | .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, |
2632 | diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h |
2633 | index 543d2801632b..76a10b222ff9 100644 |
2634 | --- a/drivers/usb/serial/ftdi_sio_ids.h |
2635 | +++ b/drivers/usb/serial/ftdi_sio_ids.h |
2636 | @@ -922,6 +922,9 @@ |
2637 | /* |
2638 | * RT Systems programming cables for various ham radios |
2639 | */ |
2640 | +/* This device uses the VID of FTDI */ |
2641 | +#define RTSYSTEMS_USB_VX8_PID 0x9e50 /* USB-VX8 USB to 7 pin modular plug for Yaesu VX-8 radio */ |
2642 | + |
2643 | #define RTSYSTEMS_VID 0x2100 /* Vendor ID */ |
2644 | #define RTSYSTEMS_USB_S03_PID 0x9001 /* RTS-03 USB to Serial Adapter */ |
2645 | #define RTSYSTEMS_USB_59_PID 0x9e50 /* USB-59 USB to 8 pin plug */ |
2646 | @@ -1440,6 +1443,12 @@ |
2647 | */ |
2648 | #define FTDI_CINTERION_MC55I_PID 0xA951 |
2649 | |
2650 | +/* |
2651 | + * Product: FirmwareHubEmulator |
2652 | + * Manufacturer: Harman Becker Automotive Systems |
2653 | + */ |
2654 | +#define FTDI_FHE_PID 0xA9A0 |
2655 | + |
2656 | /* |
2657 | * Product: Comet Caller ID decoder |
2658 | * Manufacturer: Crucible Technologies |
2659 | diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c |
2660 | index 5539f0b95efa..52401732cddc 100644 |
2661 | --- a/fs/btrfs/tree-log.c |
2662 | +++ b/fs/btrfs/tree-log.c |
2663 | @@ -3664,7 +3664,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans, |
2664 | |
2665 | src_offset = btrfs_item_ptr_offset(src, start_slot + i); |
2666 | |
2667 | - if ((i == (nr - 1))) |
2668 | + if (i == nr - 1) |
2669 | last_key = ins_keys[i]; |
2670 | |
2671 | if (ins_keys[i].type == BTRFS_INODE_ITEM_KEY) { |
2672 | diff --git a/fs/ceph/file.c b/fs/ceph/file.c |
2673 | index ca3f630db90f..e7ddb23d9bb7 100644 |
2674 | --- a/fs/ceph/file.c |
2675 | +++ b/fs/ceph/file.c |
2676 | @@ -598,7 +598,8 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *i, |
2677 | struct ceph_aio_request { |
2678 | struct kiocb *iocb; |
2679 | size_t total_len; |
2680 | - int write; |
2681 | + bool write; |
2682 | + bool should_dirty; |
2683 | int error; |
2684 | struct list_head osd_reqs; |
2685 | unsigned num_reqs; |
2686 | @@ -708,7 +709,7 @@ static void ceph_aio_complete_req(struct ceph_osd_request *req) |
2687 | } |
2688 | } |
2689 | |
2690 | - ceph_put_page_vector(osd_data->pages, num_pages, !aio_req->write); |
2691 | + ceph_put_page_vector(osd_data->pages, num_pages, aio_req->should_dirty); |
2692 | ceph_osdc_put_request(req); |
2693 | |
2694 | if (rc < 0) |
2695 | @@ -890,6 +891,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter, |
2696 | size_t count = iov_iter_count(iter); |
2697 | loff_t pos = iocb->ki_pos; |
2698 | bool write = iov_iter_rw(iter) == WRITE; |
2699 | + bool should_dirty = !write && iter_is_iovec(iter); |
2700 | |
2701 | if (write && ceph_snap(file_inode(file)) != CEPH_NOSNAP) |
2702 | return -EROFS; |
2703 | @@ -954,6 +956,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter, |
2704 | if (aio_req) { |
2705 | aio_req->iocb = iocb; |
2706 | aio_req->write = write; |
2707 | + aio_req->should_dirty = should_dirty; |
2708 | INIT_LIST_HEAD(&aio_req->osd_reqs); |
2709 | if (write) { |
2710 | aio_req->mtime = mtime; |
2711 | @@ -1012,7 +1015,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter, |
2712 | len = ret; |
2713 | } |
2714 | |
2715 | - ceph_put_page_vector(pages, num_pages, !write); |
2716 | + ceph_put_page_vector(pages, num_pages, should_dirty); |
2717 | |
2718 | ceph_osdc_put_request(req); |
2719 | if (ret < 0) |
2720 | diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c |
2721 | index f2d7402abe02..93c8e4a4bbd3 100644 |
2722 | --- a/fs/compat_ioctl.c |
2723 | +++ b/fs/compat_ioctl.c |
2724 | @@ -833,7 +833,7 @@ static int compat_ioctl_preallocate(struct file *file, |
2725 | */ |
2726 | #define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff) |
2727 | |
2728 | -#define COMPATIBLE_IOCTL(cmd) XFORM(cmd), |
2729 | +#define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd), |
2730 | /* ioctl should not be warned about even if it's not implemented. |
2731 | Valid reasons to use this: |
2732 | - It is implemented with ->compat_ioctl on some device, but programs |
2733 | diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h |
2734 | index 2d65bbd6dbd1..18ba29ff1449 100644 |
2735 | --- a/include/linux/cpumask.h |
2736 | +++ b/include/linux/cpumask.h |
2737 | @@ -680,6 +680,11 @@ void alloc_bootmem_cpumask_var(cpumask_var_t *mask); |
2738 | void free_cpumask_var(cpumask_var_t mask); |
2739 | void free_bootmem_cpumask_var(cpumask_var_t mask); |
2740 | |
2741 | +static inline bool cpumask_available(cpumask_var_t mask) |
2742 | +{ |
2743 | + return mask != NULL; |
2744 | +} |
2745 | + |
2746 | #else |
2747 | typedef struct cpumask cpumask_var_t[1]; |
2748 | |
2749 | @@ -720,6 +725,11 @@ static inline void free_cpumask_var(cpumask_var_t mask) |
2750 | static inline void free_bootmem_cpumask_var(cpumask_var_t mask) |
2751 | { |
2752 | } |
2753 | + |
2754 | +static inline bool cpumask_available(cpumask_var_t mask) |
2755 | +{ |
2756 | + return true; |
2757 | +} |
2758 | #endif /* CONFIG_CPUMASK_OFFSTACK */ |
2759 | |
2760 | /* It's common to want to use cpu_all_mask in struct member initializers, |
2761 | diff --git a/include/linux/init.h b/include/linux/init.h |
2762 | index 683508f6bb4e..0cca4142987f 100644 |
2763 | --- a/include/linux/init.h |
2764 | +++ b/include/linux/init.h |
2765 | @@ -133,6 +133,9 @@ void prepare_namespace(void); |
2766 | void __init load_default_modules(void); |
2767 | int __init init_rootfs(void); |
2768 | |
2769 | +#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_DEBUG_SET_MODULE_RONX) |
2770 | +extern bool rodata_enabled; |
2771 | +#endif |
2772 | #ifdef CONFIG_DEBUG_RODATA |
2773 | void mark_rodata_ro(void); |
2774 | #endif |
2775 | diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h |
2776 | index 589d14e970ad..c2a0f0072274 100644 |
2777 | --- a/include/linux/jiffies.h |
2778 | +++ b/include/linux/jiffies.h |
2779 | @@ -1,6 +1,7 @@ |
2780 | #ifndef _LINUX_JIFFIES_H |
2781 | #define _LINUX_JIFFIES_H |
2782 | |
2783 | +#include <linux/cache.h> |
2784 | #include <linux/math64.h> |
2785 | #include <linux/kernel.h> |
2786 | #include <linux/types.h> |
2787 | @@ -63,19 +64,17 @@ extern int register_refined_jiffies(long clock_tick_rate); |
2788 | /* TICK_USEC is the time between ticks in usec assuming fake USER_HZ */ |
2789 | #define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ) |
2790 | |
2791 | -/* some arch's have a small-data section that can be accessed register-relative |
2792 | - * but that can only take up to, say, 4-byte variables. jiffies being part of |
2793 | - * an 8-byte variable may not be correctly accessed unless we force the issue |
2794 | - */ |
2795 | -#define __jiffy_data __attribute__((section(".data"))) |
2796 | +#ifndef __jiffy_arch_data |
2797 | +#define __jiffy_arch_data |
2798 | +#endif |
2799 | |
2800 | /* |
2801 | * The 64-bit value is not atomic - you MUST NOT read it |
2802 | * without sampling the sequence number in jiffies_lock. |
2803 | * get_jiffies_64() will do this for you as appropriate. |
2804 | */ |
2805 | -extern u64 __jiffy_data jiffies_64; |
2806 | -extern unsigned long volatile __jiffy_data jiffies; |
2807 | +extern u64 __cacheline_aligned_in_smp jiffies_64; |
2808 | +extern unsigned long volatile __cacheline_aligned_in_smp __jiffy_arch_data jiffies; |
2809 | |
2810 | #if (BITS_PER_LONG < 64) |
2811 | u64 get_jiffies_64(void); |
2812 | diff --git a/include/linux/llist.h b/include/linux/llist.h |
2813 | index fd4ca0b4fe0f..ac6796138ba0 100644 |
2814 | --- a/include/linux/llist.h |
2815 | +++ b/include/linux/llist.h |
2816 | @@ -87,6 +87,23 @@ static inline void init_llist_head(struct llist_head *list) |
2817 | #define llist_entry(ptr, type, member) \ |
2818 | container_of(ptr, type, member) |
2819 | |
2820 | +/** |
2821 | + * member_address_is_nonnull - check whether the member address is not NULL |
2822 | + * @ptr: the object pointer (struct type * that contains the llist_node) |
2823 | + * @member: the name of the llist_node within the struct. |
2824 | + * |
2825 | + * This macro is conceptually the same as |
2826 | + * &ptr->member != NULL |
2827 | + * but it works around the fact that compilers can decide that taking a member |
2828 | + * address is never a NULL pointer. |
2829 | + * |
2830 | + * Real objects that start at a high address and have a member at NULL are |
2831 | + * unlikely to exist, but such pointers may be returned e.g. by the |
2832 | + * container_of() macro. |
2833 | + */ |
2834 | +#define member_address_is_nonnull(ptr, member) \ |
2835 | + ((uintptr_t)(ptr) + offsetof(typeof(*(ptr)), member) != 0) |
2836 | + |
2837 | /** |
2838 | * llist_for_each - iterate over some deleted entries of a lock-less list |
2839 | * @pos: the &struct llist_node to use as a loop cursor |
2840 | @@ -121,7 +138,7 @@ static inline void init_llist_head(struct llist_head *list) |
2841 | */ |
2842 | #define llist_for_each_entry(pos, node, member) \ |
2843 | for ((pos) = llist_entry((node), typeof(*(pos)), member); \ |
2844 | - &(pos)->member != NULL; \ |
2845 | + member_address_is_nonnull(pos, member); \ |
2846 | (pos) = llist_entry((pos)->member.next, typeof(*(pos)), member)) |
2847 | |
2848 | /** |
2849 | @@ -143,7 +160,7 @@ static inline void init_llist_head(struct llist_head *list) |
2850 | */ |
2851 | #define llist_for_each_entry_safe(pos, n, node, member) \ |
2852 | for (pos = llist_entry((node), typeof(*pos), member); \ |
2853 | - &pos->member != NULL && \ |
2854 | + member_address_is_nonnull(pos, member) && \ |
2855 | (n = llist_entry(pos->member.next, typeof(*n), member), true); \ |
2856 | pos = n) |
2857 | |
2858 | diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h |
2859 | index 9bfeb88fb940..69111fa2e578 100644 |
2860 | --- a/include/linux/netfilter/x_tables.h |
2861 | +++ b/include/linux/netfilter/x_tables.h |
2862 | @@ -254,6 +254,8 @@ unsigned int *xt_alloc_entry_offsets(unsigned int size); |
2863 | bool xt_find_jump_offset(const unsigned int *offsets, |
2864 | unsigned int target, unsigned int size); |
2865 | |
2866 | +int xt_check_proc_name(const char *name, unsigned int size); |
2867 | + |
2868 | int xt_check_match(struct xt_mtchk_param *, unsigned int size, u_int8_t proto, |
2869 | bool inv_proto); |
2870 | int xt_check_target(struct xt_tgchk_param *, unsigned int size, u_int8_t proto, |
2871 | diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h |
2872 | index 818a38f99221..f888263fd757 100644 |
2873 | --- a/include/rdma/ib_addr.h |
2874 | +++ b/include/rdma/ib_addr.h |
2875 | @@ -129,6 +129,8 @@ int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev, |
2876 | const unsigned char *dst_dev_addr); |
2877 | |
2878 | int rdma_addr_size(struct sockaddr *addr); |
2879 | +int rdma_addr_size_in6(struct sockaddr_in6 *addr); |
2880 | +int rdma_addr_size_kss(struct __kernel_sockaddr_storage *addr); |
2881 | |
2882 | int rdma_addr_find_smac_by_sgid(union ib_gid *sgid, u8 *smac, u16 *vlan_id); |
2883 | int rdma_addr_find_l2_eth_by_grh(const union ib_gid *sgid, |
2884 | diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h |
2885 | index e5a2e68b2236..ecc8e01c5616 100644 |
2886 | --- a/include/uapi/linux/pci_regs.h |
2887 | +++ b/include/uapi/linux/pci_regs.h |
2888 | @@ -106,7 +106,7 @@ |
2889 | #define PCI_SUBSYSTEM_ID 0x2e |
2890 | #define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */ |
2891 | #define PCI_ROM_ADDRESS_ENABLE 0x01 |
2892 | -#define PCI_ROM_ADDRESS_MASK (~0x7ffUL) |
2893 | +#define PCI_ROM_ADDRESS_MASK (~0x7ffU) |
2894 | |
2895 | #define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */ |
2896 | |
2897 | diff --git a/init/main.c b/init/main.c |
2898 | index 99f026565608..f22957afb37e 100644 |
2899 | --- a/init/main.c |
2900 | +++ b/init/main.c |
2901 | @@ -81,6 +81,7 @@ |
2902 | #include <linux/proc_ns.h> |
2903 | #include <linux/io.h> |
2904 | #include <linux/kaiser.h> |
2905 | +#include <linux/cache.h> |
2906 | |
2907 | #include <asm/io.h> |
2908 | #include <asm/bugs.h> |
2909 | @@ -914,14 +915,16 @@ static int try_to_run_init_process(const char *init_filename) |
2910 | |
2911 | static noinline void __init kernel_init_freeable(void); |
2912 | |
2913 | -#ifdef CONFIG_DEBUG_RODATA |
2914 | -static bool rodata_enabled = true; |
2915 | +#if defined(CONFIG_DEBUG_RODATA) || defined(CONFIG_SET_MODULE_RONX) |
2916 | +bool rodata_enabled __ro_after_init = true; |
2917 | static int __init set_debug_rodata(char *str) |
2918 | { |
2919 | return strtobool(str, &rodata_enabled); |
2920 | } |
2921 | __setup("rodata=", set_debug_rodata); |
2922 | +#endif |
2923 | |
2924 | +#ifdef CONFIG_DEBUG_RODATA |
2925 | static void mark_readonly(void) |
2926 | { |
2927 | if (rodata_enabled) |
2928 | diff --git a/ipc/shm.c b/ipc/shm.c |
2929 | index e2072ae4f90e..de93d01bfce2 100644 |
2930 | --- a/ipc/shm.c |
2931 | +++ b/ipc/shm.c |
2932 | @@ -381,6 +381,17 @@ static int shm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) |
2933 | return sfd->vm_ops->fault(vma, vmf); |
2934 | } |
2935 | |
2936 | +static int shm_split(struct vm_area_struct *vma, unsigned long addr) |
2937 | +{ |
2938 | + struct file *file = vma->vm_file; |
2939 | + struct shm_file_data *sfd = shm_file_data(file); |
2940 | + |
2941 | + if (sfd->vm_ops && sfd->vm_ops->split) |
2942 | + return sfd->vm_ops->split(vma, addr); |
2943 | + |
2944 | + return 0; |
2945 | +} |
2946 | + |
2947 | #ifdef CONFIG_NUMA |
2948 | static int shm_set_policy(struct vm_area_struct *vma, struct mempolicy *new) |
2949 | { |
2950 | @@ -503,6 +514,7 @@ static const struct vm_operations_struct shm_vm_ops = { |
2951 | .open = shm_open, /* callback for a new vm-area open */ |
2952 | .close = shm_close, /* callback for when the vm-area is released */ |
2953 | .fault = shm_fault, |
2954 | + .split = shm_split, |
2955 | #if defined(CONFIG_NUMA) |
2956 | .set_policy = shm_set_policy, |
2957 | .get_policy = shm_get_policy, |
2958 | diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c |
2959 | index 3f8cb1e14588..253ae2da13c3 100644 |
2960 | --- a/kernel/events/hw_breakpoint.c |
2961 | +++ b/kernel/events/hw_breakpoint.c |
2962 | @@ -427,16 +427,9 @@ EXPORT_SYMBOL_GPL(register_user_hw_breakpoint); |
2963 | * modify_user_hw_breakpoint - modify a user-space hardware breakpoint |
2964 | * @bp: the breakpoint structure to modify |
2965 | * @attr: new breakpoint attributes |
2966 | - * @triggered: callback to trigger when we hit the breakpoint |
2967 | - * @tsk: pointer to 'task_struct' of the process to which the address belongs |
2968 | */ |
2969 | int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr) |
2970 | { |
2971 | - u64 old_addr = bp->attr.bp_addr; |
2972 | - u64 old_len = bp->attr.bp_len; |
2973 | - int old_type = bp->attr.bp_type; |
2974 | - int err = 0; |
2975 | - |
2976 | /* |
2977 | * modify_user_hw_breakpoint can be invoked with IRQs disabled and hence it |
2978 | * will not be possible to raise IPIs that invoke __perf_event_disable. |
2979 | @@ -451,27 +444,18 @@ int modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *att |
2980 | bp->attr.bp_addr = attr->bp_addr; |
2981 | bp->attr.bp_type = attr->bp_type; |
2982 | bp->attr.bp_len = attr->bp_len; |
2983 | + bp->attr.disabled = 1; |
2984 | |
2985 | - if (attr->disabled) |
2986 | - goto end; |
2987 | - |
2988 | - err = validate_hw_breakpoint(bp); |
2989 | - if (!err) |
2990 | - perf_event_enable(bp); |
2991 | + if (!attr->disabled) { |
2992 | + int err = validate_hw_breakpoint(bp); |
2993 | |
2994 | - if (err) { |
2995 | - bp->attr.bp_addr = old_addr; |
2996 | - bp->attr.bp_type = old_type; |
2997 | - bp->attr.bp_len = old_len; |
2998 | - if (!bp->attr.disabled) |
2999 | - perf_event_enable(bp); |
3000 | + if (err) |
3001 | + return err; |
3002 | |
3003 | - return err; |
3004 | + perf_event_enable(bp); |
3005 | + bp->attr.disabled = 0; |
3006 | } |
3007 | |
3008 | -end: |
3009 | - bp->attr.disabled = attr->disabled; |
3010 | - |
3011 | return 0; |
3012 | } |
3013 | EXPORT_SYMBOL_GPL(modify_user_hw_breakpoint); |
3014 | diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c |
3015 | index ea41820ab12e..5927da596d42 100644 |
3016 | --- a/kernel/irq/manage.c |
3017 | +++ b/kernel/irq/manage.c |
3018 | @@ -850,7 +850,7 @@ irq_thread_check_affinity(struct irq_desc *desc, struct irqaction *action) |
3019 | * This code is triggered unconditionally. Check the affinity |
3020 | * mask pointer. For CPU_MASK_OFFSTACK=n this is optimized out. |
3021 | */ |
3022 | - if (desc->irq_common_data.affinity) |
3023 | + if (cpumask_available(desc->irq_common_data.affinity)) |
3024 | cpumask_copy(mask, desc->irq_common_data.affinity); |
3025 | else |
3026 | valid = false; |
3027 | diff --git a/kernel/kprobes.c b/kernel/kprobes.c |
3028 | index a1a07cf1101f..69485183af79 100644 |
3029 | --- a/kernel/kprobes.c |
3030 | +++ b/kernel/kprobes.c |
3031 | @@ -125,7 +125,7 @@ static void *alloc_insn_page(void) |
3032 | return module_alloc(PAGE_SIZE); |
3033 | } |
3034 | |
3035 | -static void free_insn_page(void *page) |
3036 | +void __weak free_insn_page(void *page) |
3037 | { |
3038 | module_memfree(page); |
3039 | } |
3040 | diff --git a/kernel/module.c b/kernel/module.c |
3041 | index 07bfb9971f2f..0651f2d25fc9 100644 |
3042 | --- a/kernel/module.c |
3043 | +++ b/kernel/module.c |
3044 | @@ -1911,6 +1911,9 @@ static void frob_writable_data(const struct module_layout *layout, |
3045 | /* livepatching wants to disable read-only so it can frob module. */ |
3046 | void module_disable_ro(const struct module *mod) |
3047 | { |
3048 | + if (!rodata_enabled) |
3049 | + return; |
3050 | + |
3051 | frob_text(&mod->core_layout, set_memory_rw); |
3052 | frob_rodata(&mod->core_layout, set_memory_rw); |
3053 | frob_ro_after_init(&mod->core_layout, set_memory_rw); |
3054 | @@ -1920,6 +1923,9 @@ void module_disable_ro(const struct module *mod) |
3055 | |
3056 | void module_enable_ro(const struct module *mod, bool after_init) |
3057 | { |
3058 | + if (!rodata_enabled) |
3059 | + return; |
3060 | + |
3061 | frob_text(&mod->core_layout, set_memory_ro); |
3062 | frob_rodata(&mod->core_layout, set_memory_ro); |
3063 | frob_text(&mod->init_layout, set_memory_ro); |
3064 | @@ -1952,6 +1958,9 @@ void set_all_modules_text_rw(void) |
3065 | { |
3066 | struct module *mod; |
3067 | |
3068 | + if (!rodata_enabled) |
3069 | + return; |
3070 | + |
3071 | mutex_lock(&module_mutex); |
3072 | list_for_each_entry_rcu(mod, &modules, list) { |
3073 | if (mod->state == MODULE_STATE_UNFORMED) |
3074 | @@ -1968,6 +1977,9 @@ void set_all_modules_text_ro(void) |
3075 | { |
3076 | struct module *mod; |
3077 | |
3078 | + if (!rodata_enabled) |
3079 | + return; |
3080 | + |
3081 | mutex_lock(&module_mutex); |
3082 | list_for_each_entry_rcu(mod, &modules, list) { |
3083 | if (mod->state == MODULE_STATE_UNFORMED) |
3084 | @@ -1981,10 +1993,12 @@ void set_all_modules_text_ro(void) |
3085 | |
3086 | static void disable_ro_nx(const struct module_layout *layout) |
3087 | { |
3088 | - frob_text(layout, set_memory_rw); |
3089 | - frob_rodata(layout, set_memory_rw); |
3090 | + if (rodata_enabled) { |
3091 | + frob_text(layout, set_memory_rw); |
3092 | + frob_rodata(layout, set_memory_rw); |
3093 | + frob_ro_after_init(layout, set_memory_rw); |
3094 | + } |
3095 | frob_rodata(layout, set_memory_x); |
3096 | - frob_ro_after_init(layout, set_memory_rw); |
3097 | frob_ro_after_init(layout, set_memory_x); |
3098 | frob_writable_data(layout, set_memory_x); |
3099 | } |
3100 | diff --git a/mm/vmscan.c b/mm/vmscan.c |
3101 | index cdd5c3b5c357..557ad1367595 100644 |
3102 | --- a/mm/vmscan.c |
3103 | +++ b/mm/vmscan.c |
3104 | @@ -2966,7 +2966,7 @@ unsigned long try_to_free_pages(struct zonelist *zonelist, int order, |
3105 | unsigned long nr_reclaimed; |
3106 | struct scan_control sc = { |
3107 | .nr_to_reclaim = SWAP_CLUSTER_MAX, |
3108 | - .gfp_mask = (gfp_mask = memalloc_noio_flags(gfp_mask)), |
3109 | + .gfp_mask = memalloc_noio_flags(gfp_mask), |
3110 | .reclaim_idx = gfp_zone(gfp_mask), |
3111 | .order = order, |
3112 | .nodemask = nodemask, |
3113 | @@ -2981,12 +2981,12 @@ unsigned long try_to_free_pages(struct zonelist *zonelist, int order, |
3114 | * 1 is returned so that the page allocator does not OOM kill at this |
3115 | * point. |
3116 | */ |
3117 | - if (throttle_direct_reclaim(gfp_mask, zonelist, nodemask)) |
3118 | + if (throttle_direct_reclaim(sc.gfp_mask, zonelist, nodemask)) |
3119 | return 1; |
3120 | |
3121 | trace_mm_vmscan_direct_reclaim_begin(order, |
3122 | sc.may_writepage, |
3123 | - gfp_mask, |
3124 | + sc.gfp_mask, |
3125 | sc.reclaim_idx); |
3126 | |
3127 | nr_reclaimed = do_try_to_free_pages(zonelist, &sc); |
3128 | @@ -3749,16 +3749,15 @@ static int __node_reclaim(struct pglist_data *pgdat, gfp_t gfp_mask, unsigned in |
3129 | const unsigned long nr_pages = 1 << order; |
3130 | struct task_struct *p = current; |
3131 | struct reclaim_state reclaim_state; |
3132 | - int classzone_idx = gfp_zone(gfp_mask); |
3133 | struct scan_control sc = { |
3134 | .nr_to_reclaim = max(nr_pages, SWAP_CLUSTER_MAX), |
3135 | - .gfp_mask = (gfp_mask = memalloc_noio_flags(gfp_mask)), |
3136 | + .gfp_mask = memalloc_noio_flags(gfp_mask), |
3137 | .order = order, |
3138 | .priority = NODE_RECLAIM_PRIORITY, |
3139 | .may_writepage = !!(node_reclaim_mode & RECLAIM_WRITE), |
3140 | .may_unmap = !!(node_reclaim_mode & RECLAIM_UNMAP), |
3141 | .may_swap = 1, |
3142 | - .reclaim_idx = classzone_idx, |
3143 | + .reclaim_idx = gfp_zone(gfp_mask), |
3144 | }; |
3145 | |
3146 | cond_resched(); |
3147 | @@ -3768,7 +3767,7 @@ static int __node_reclaim(struct pglist_data *pgdat, gfp_t gfp_mask, unsigned in |
3148 | * and RECLAIM_UNMAP. |
3149 | */ |
3150 | p->flags |= PF_MEMALLOC | PF_SWAPWRITE; |
3151 | - lockdep_set_current_reclaim_state(gfp_mask); |
3152 | + lockdep_set_current_reclaim_state(sc.gfp_mask); |
3153 | reclaim_state.reclaimed_slab = 0; |
3154 | p->reclaim_state = &reclaim_state; |
3155 | |
3156 | diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c |
3157 | index 658c900752c6..ead4d1baeaa6 100644 |
3158 | --- a/net/bluetooth/smp.c |
3159 | +++ b/net/bluetooth/smp.c |
3160 | @@ -2233,8 +2233,14 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) |
3161 | else |
3162 | sec_level = authreq_to_seclevel(auth); |
3163 | |
3164 | - if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK)) |
3165 | + if (smp_sufficient_security(hcon, sec_level, SMP_USE_LTK)) { |
3166 | + /* If link is already encrypted with sufficient security we |
3167 | + * still need refresh encryption as per Core Spec 5.0 Vol 3, |
3168 | + * Part H 2.4.6 |
3169 | + */ |
3170 | + smp_ltk_encrypt(conn, hcon->sec_level); |
3171 | return 0; |
3172 | + } |
3173 | |
3174 | if (sec_level > hcon->pending_sec_level) |
3175 | hcon->pending_sec_level = sec_level; |
3176 | diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c |
3177 | index 9637a681bdda..9adf16258cab 100644 |
3178 | --- a/net/bridge/netfilter/ebt_among.c |
3179 | +++ b/net/bridge/netfilter/ebt_among.c |
3180 | @@ -177,6 +177,28 @@ static bool poolsize_invalid(const struct ebt_mac_wormhash *w) |
3181 | return w && w->poolsize >= (INT_MAX / sizeof(struct ebt_mac_wormhash_tuple)); |
3182 | } |
3183 | |
3184 | +static bool wormhash_offset_invalid(int off, unsigned int len) |
3185 | +{ |
3186 | + if (off == 0) /* not present */ |
3187 | + return false; |
3188 | + |
3189 | + if (off < (int)sizeof(struct ebt_among_info) || |
3190 | + off % __alignof__(struct ebt_mac_wormhash)) |
3191 | + return true; |
3192 | + |
3193 | + off += sizeof(struct ebt_mac_wormhash); |
3194 | + |
3195 | + return off > len; |
3196 | +} |
3197 | + |
3198 | +static bool wormhash_sizes_valid(const struct ebt_mac_wormhash *wh, int a, int b) |
3199 | +{ |
3200 | + if (a == 0) |
3201 | + a = sizeof(struct ebt_among_info); |
3202 | + |
3203 | + return ebt_mac_wormhash_size(wh) + a == b; |
3204 | +} |
3205 | + |
3206 | static int ebt_among_mt_check(const struct xt_mtchk_param *par) |
3207 | { |
3208 | const struct ebt_among_info *info = par->matchinfo; |
3209 | @@ -189,6 +211,10 @@ static int ebt_among_mt_check(const struct xt_mtchk_param *par) |
3210 | if (expected_length > em->match_size) |
3211 | return -EINVAL; |
3212 | |
3213 | + if (wormhash_offset_invalid(info->wh_dst_ofs, em->match_size) || |
3214 | + wormhash_offset_invalid(info->wh_src_ofs, em->match_size)) |
3215 | + return -EINVAL; |
3216 | + |
3217 | wh_dst = ebt_among_wh_dst(info); |
3218 | if (poolsize_invalid(wh_dst)) |
3219 | return -EINVAL; |
3220 | @@ -201,6 +227,14 @@ static int ebt_among_mt_check(const struct xt_mtchk_param *par) |
3221 | if (poolsize_invalid(wh_src)) |
3222 | return -EINVAL; |
3223 | |
3224 | + if (info->wh_src_ofs < info->wh_dst_ofs) { |
3225 | + if (!wormhash_sizes_valid(wh_src, info->wh_src_ofs, info->wh_dst_ofs)) |
3226 | + return -EINVAL; |
3227 | + } else { |
3228 | + if (!wormhash_sizes_valid(wh_dst, info->wh_dst_ofs, info->wh_src_ofs)) |
3229 | + return -EINVAL; |
3230 | + } |
3231 | + |
3232 | expected_length += ebt_mac_wormhash_size(wh_src); |
3233 | |
3234 | if (em->match_size != EBT_ALIGN(expected_length)) { |
3235 | diff --git a/net/ipv4/netfilter/nf_nat_h323.c b/net/ipv4/netfilter/nf_nat_h323.c |
3236 | index 574f7ebba0b6..ac8342dcb55e 100644 |
3237 | --- a/net/ipv4/netfilter/nf_nat_h323.c |
3238 | +++ b/net/ipv4/netfilter/nf_nat_h323.c |
3239 | @@ -252,16 +252,16 @@ static int nat_rtp_rtcp(struct sk_buff *skb, struct nf_conn *ct, |
3240 | if (set_h245_addr(skb, protoff, data, dataoff, taddr, |
3241 | &ct->tuplehash[!dir].tuple.dst.u3, |
3242 | htons((port & htons(1)) ? nated_port + 1 : |
3243 | - nated_port)) == 0) { |
3244 | - /* Save ports */ |
3245 | - info->rtp_port[i][dir] = rtp_port; |
3246 | - info->rtp_port[i][!dir] = htons(nated_port); |
3247 | - } else { |
3248 | + nated_port))) { |
3249 | nf_ct_unexpect_related(rtp_exp); |
3250 | nf_ct_unexpect_related(rtcp_exp); |
3251 | return -1; |
3252 | } |
3253 | |
3254 | + /* Save ports */ |
3255 | + info->rtp_port[i][dir] = rtp_port; |
3256 | + info->rtp_port[i][!dir] = htons(nated_port); |
3257 | + |
3258 | /* Success */ |
3259 | pr_debug("nf_nat_h323: expect RTP %pI4:%hu->%pI4:%hu\n", |
3260 | &rtp_exp->tuple.src.u3.ip, |
3261 | @@ -370,15 +370,15 @@ static int nat_h245(struct sk_buff *skb, struct nf_conn *ct, |
3262 | /* Modify signal */ |
3263 | if (set_h225_addr(skb, protoff, data, dataoff, taddr, |
3264 | &ct->tuplehash[!dir].tuple.dst.u3, |
3265 | - htons(nated_port)) == 0) { |
3266 | - /* Save ports */ |
3267 | - info->sig_port[dir] = port; |
3268 | - info->sig_port[!dir] = htons(nated_port); |
3269 | - } else { |
3270 | + htons(nated_port))) { |
3271 | nf_ct_unexpect_related(exp); |
3272 | return -1; |
3273 | } |
3274 | |
3275 | + /* Save ports */ |
3276 | + info->sig_port[dir] = port; |
3277 | + info->sig_port[!dir] = htons(nated_port); |
3278 | + |
3279 | pr_debug("nf_nat_q931: expect H.245 %pI4:%hu->%pI4:%hu\n", |
3280 | &exp->tuple.src.u3.ip, |
3281 | ntohs(exp->tuple.src.u.tcp.port), |
3282 | @@ -462,24 +462,27 @@ static int nat_q931(struct sk_buff *skb, struct nf_conn *ct, |
3283 | /* Modify signal */ |
3284 | if (set_h225_addr(skb, protoff, data, 0, &taddr[idx], |
3285 | &ct->tuplehash[!dir].tuple.dst.u3, |
3286 | - htons(nated_port)) == 0) { |
3287 | - /* Save ports */ |
3288 | - info->sig_port[dir] = port; |
3289 | - info->sig_port[!dir] = htons(nated_port); |
3290 | - |
3291 | - /* Fix for Gnomemeeting */ |
3292 | - if (idx > 0 && |
3293 | - get_h225_addr(ct, *data, &taddr[0], &addr, &port) && |
3294 | - (ntohl(addr.ip) & 0xff000000) == 0x7f000000) { |
3295 | - set_h225_addr(skb, protoff, data, 0, &taddr[0], |
3296 | - &ct->tuplehash[!dir].tuple.dst.u3, |
3297 | - info->sig_port[!dir]); |
3298 | - } |
3299 | - } else { |
3300 | + htons(nated_port))) { |
3301 | nf_ct_unexpect_related(exp); |
3302 | return -1; |
3303 | } |
3304 | |
3305 | + /* Save ports */ |
3306 | + info->sig_port[dir] = port; |
3307 | + info->sig_port[!dir] = htons(nated_port); |
3308 | + |
3309 | + /* Fix for Gnomemeeting */ |
3310 | + if (idx > 0 && |
3311 | + get_h225_addr(ct, *data, &taddr[0], &addr, &port) && |
3312 | + (ntohl(addr.ip) & 0xff000000) == 0x7f000000) { |
3313 | + if (set_h225_addr(skb, protoff, data, 0, &taddr[0], |
3314 | + &ct->tuplehash[!dir].tuple.dst.u3, |
3315 | + info->sig_port[!dir])) { |
3316 | + nf_ct_unexpect_related(exp); |
3317 | + return -1; |
3318 | + } |
3319 | + } |
3320 | + |
3321 | /* Success */ |
3322 | pr_debug("nf_nat_ras: expect Q.931 %pI4:%hu->%pI4:%hu\n", |
3323 | &exp->tuple.src.u3.ip, |
3324 | @@ -550,9 +553,9 @@ static int nat_callforwarding(struct sk_buff *skb, struct nf_conn *ct, |
3325 | } |
3326 | |
3327 | /* Modify signal */ |
3328 | - if (!set_h225_addr(skb, protoff, data, dataoff, taddr, |
3329 | - &ct->tuplehash[!dir].tuple.dst.u3, |
3330 | - htons(nated_port)) == 0) { |
3331 | + if (set_h225_addr(skb, protoff, data, dataoff, taddr, |
3332 | + &ct->tuplehash[!dir].tuple.dst.u3, |
3333 | + htons(nated_port))) { |
3334 | nf_ct_unexpect_related(exp); |
3335 | return -1; |
3336 | } |
3337 | diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c |
3338 | index 345efeb887ef..912333586de6 100644 |
3339 | --- a/net/ipv6/ip6_vti.c |
3340 | +++ b/net/ipv6/ip6_vti.c |
3341 | @@ -625,7 +625,6 @@ static void vti6_link_config(struct ip6_tnl *t) |
3342 | { |
3343 | struct net_device *dev = t->dev; |
3344 | struct __ip6_tnl_parm *p = &t->parms; |
3345 | - struct net_device *tdev = NULL; |
3346 | |
3347 | memcpy(dev->dev_addr, &p->laddr, sizeof(struct in6_addr)); |
3348 | memcpy(dev->broadcast, &p->raddr, sizeof(struct in6_addr)); |
3349 | @@ -638,25 +637,6 @@ static void vti6_link_config(struct ip6_tnl *t) |
3350 | dev->flags |= IFF_POINTOPOINT; |
3351 | else |
3352 | dev->flags &= ~IFF_POINTOPOINT; |
3353 | - |
3354 | - if (p->flags & IP6_TNL_F_CAP_XMIT) { |
3355 | - int strict = (ipv6_addr_type(&p->raddr) & |
3356 | - (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL)); |
3357 | - struct rt6_info *rt = rt6_lookup(t->net, |
3358 | - &p->raddr, &p->laddr, |
3359 | - p->link, strict); |
3360 | - |
3361 | - if (rt) |
3362 | - tdev = rt->dst.dev; |
3363 | - ip6_rt_put(rt); |
3364 | - } |
3365 | - |
3366 | - if (!tdev && p->link) |
3367 | - tdev = __dev_get_by_index(t->net, p->link); |
3368 | - |
3369 | - if (tdev) |
3370 | - dev->mtu = max_t(int, tdev->mtu - dev->hard_header_len, |
3371 | - IPV6_MIN_MTU); |
3372 | } |
3373 | |
3374 | /** |
3375 | diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c |
3376 | index d31818e7d10c..a5acaf1efaab 100644 |
3377 | --- a/net/mac80211/ibss.c |
3378 | +++ b/net/mac80211/ibss.c |
3379 | @@ -427,7 +427,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, |
3380 | case NL80211_CHAN_WIDTH_5: |
3381 | case NL80211_CHAN_WIDTH_10: |
3382 | cfg80211_chandef_create(&chandef, cbss->channel, |
3383 | - NL80211_CHAN_WIDTH_20_NOHT); |
3384 | + NL80211_CHAN_NO_HT); |
3385 | chandef.width = sdata->u.ibss.chandef.width; |
3386 | break; |
3387 | case NL80211_CHAN_WIDTH_80: |
3388 | @@ -439,7 +439,7 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, |
3389 | default: |
3390 | /* fall back to 20 MHz for unsupported modes */ |
3391 | cfg80211_chandef_create(&chandef, cbss->channel, |
3392 | - NL80211_CHAN_WIDTH_20_NOHT); |
3393 | + NL80211_CHAN_NO_HT); |
3394 | break; |
3395 | } |
3396 | |
3397 | diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c |
3398 | index dbceb42c2a8e..e6096dfd0210 100644 |
3399 | --- a/net/mac80211/rate.c |
3400 | +++ b/net/mac80211/rate.c |
3401 | @@ -173,9 +173,11 @@ ieee80211_rate_control_ops_get(const char *name) |
3402 | /* try default if specific alg requested but not found */ |
3403 | ops = ieee80211_try_rate_control_ops_get(ieee80211_default_rc_algo); |
3404 | |
3405 | - /* try built-in one if specific alg requested but not found */ |
3406 | - if (!ops && strlen(CONFIG_MAC80211_RC_DEFAULT)) |
3407 | + /* Note: check for > 0 is intentional to avoid clang warning */ |
3408 | + if (!ops && (strlen(CONFIG_MAC80211_RC_DEFAULT) > 0)) |
3409 | + /* try built-in one if specific alg requested but not found */ |
3410 | ops = ieee80211_try_rate_control_ops_get(CONFIG_MAC80211_RC_DEFAULT); |
3411 | + |
3412 | kernel_param_unlock(THIS_MODULE); |
3413 | |
3414 | return ops; |
3415 | diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c |
3416 | index d5caed5bcfb1..d49a4639465f 100644 |
3417 | --- a/net/netfilter/nf_conntrack_netlink.c |
3418 | +++ b/net/netfilter/nf_conntrack_netlink.c |
3419 | @@ -1008,9 +1008,8 @@ static const struct nla_policy tuple_nla_policy[CTA_TUPLE_MAX+1] = { |
3420 | |
3421 | static int |
3422 | ctnetlink_parse_tuple(const struct nlattr * const cda[], |
3423 | - struct nf_conntrack_tuple *tuple, |
3424 | - enum ctattr_type type, u_int8_t l3num, |
3425 | - struct nf_conntrack_zone *zone) |
3426 | + struct nf_conntrack_tuple *tuple, u32 type, |
3427 | + u_int8_t l3num, struct nf_conntrack_zone *zone) |
3428 | { |
3429 | struct nlattr *tb[CTA_TUPLE_MAX+1]; |
3430 | int err; |
3431 | @@ -2409,7 +2408,7 @@ static struct nfnl_ct_hook ctnetlink_glue_hook = { |
3432 | |
3433 | static int ctnetlink_exp_dump_tuple(struct sk_buff *skb, |
3434 | const struct nf_conntrack_tuple *tuple, |
3435 | - enum ctattr_expect type) |
3436 | + u32 type) |
3437 | { |
3438 | struct nlattr *nest_parms; |
3439 | |
3440 | diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c |
3441 | index 7ad1a863587a..59be89813a29 100644 |
3442 | --- a/net/netfilter/x_tables.c |
3443 | +++ b/net/netfilter/x_tables.c |
3444 | @@ -367,6 +367,36 @@ textify_hooks(char *buf, size_t size, unsigned int mask, uint8_t nfproto) |
3445 | return buf; |
3446 | } |
3447 | |
3448 | +/** |
3449 | + * xt_check_proc_name - check that name is suitable for /proc file creation |
3450 | + * |
3451 | + * @name: file name candidate |
3452 | + * @size: length of buffer |
3453 | + * |
3454 | + * some x_tables modules wish to create a file in /proc. |
3455 | + * This function makes sure that the name is suitable for this |
3456 | + * purpose, it checks that name is NUL terminated and isn't a 'special' |
3457 | + * name, like "..". |
3458 | + * |
3459 | + * returns negative number on error or 0 if name is useable. |
3460 | + */ |
3461 | +int xt_check_proc_name(const char *name, unsigned int size) |
3462 | +{ |
3463 | + if (name[0] == '\0') |
3464 | + return -EINVAL; |
3465 | + |
3466 | + if (strnlen(name, size) == size) |
3467 | + return -ENAMETOOLONG; |
3468 | + |
3469 | + if (strcmp(name, ".") == 0 || |
3470 | + strcmp(name, "..") == 0 || |
3471 | + strchr(name, '/')) |
3472 | + return -EINVAL; |
3473 | + |
3474 | + return 0; |
3475 | +} |
3476 | +EXPORT_SYMBOL(xt_check_proc_name); |
3477 | + |
3478 | int xt_check_match(struct xt_mtchk_param *par, |
3479 | unsigned int size, u_int8_t proto, bool inv_proto) |
3480 | { |
3481 | diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c |
3482 | index b89b688e9d01..a1a29cdc58fc 100644 |
3483 | --- a/net/netfilter/xt_hashlimit.c |
3484 | +++ b/net/netfilter/xt_hashlimit.c |
3485 | @@ -794,8 +794,9 @@ static int hashlimit_mt_check_v1(const struct xt_mtchk_param *par) |
3486 | struct hashlimit_cfg2 cfg = {}; |
3487 | int ret; |
3488 | |
3489 | - if (info->name[sizeof(info->name) - 1] != '\0') |
3490 | - return -EINVAL; |
3491 | + ret = xt_check_proc_name(info->name, sizeof(info->name)); |
3492 | + if (ret) |
3493 | + return ret; |
3494 | |
3495 | ret = cfg_copy(&cfg, (void *)&info->cfg, 1); |
3496 | |
3497 | @@ -809,9 +810,11 @@ static int hashlimit_mt_check_v1(const struct xt_mtchk_param *par) |
3498 | static int hashlimit_mt_check(const struct xt_mtchk_param *par) |
3499 | { |
3500 | struct xt_hashlimit_mtinfo2 *info = par->matchinfo; |
3501 | + int ret; |
3502 | |
3503 | - if (info->name[sizeof(info->name) - 1] != '\0') |
3504 | - return -EINVAL; |
3505 | + ret = xt_check_proc_name(info->name, sizeof(info->name)); |
3506 | + if (ret) |
3507 | + return ret; |
3508 | |
3509 | return hashlimit_mt_check_common(par, &info->hinfo, &info->cfg, |
3510 | info->name, 2); |
3511 | diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c |
3512 | index e3b7a09b103e..79d7ad621a80 100644 |
3513 | --- a/net/netfilter/xt_recent.c |
3514 | +++ b/net/netfilter/xt_recent.c |
3515 | @@ -361,9 +361,9 @@ static int recent_mt_check(const struct xt_mtchk_param *par, |
3516 | info->hit_count, XT_RECENT_MAX_NSTAMPS - 1); |
3517 | return -EINVAL; |
3518 | } |
3519 | - if (info->name[0] == '\0' || |
3520 | - strnlen(info->name, XT_RECENT_NAME_LEN) == XT_RECENT_NAME_LEN) |
3521 | - return -EINVAL; |
3522 | + ret = xt_check_proc_name(info->name, sizeof(info->name)); |
3523 | + if (ret) |
3524 | + return ret; |
3525 | |
3526 | if (ip_pkt_list_tot && info->hit_count < ip_pkt_list_tot) |
3527 | nstamp_mask = roundup_pow_of_two(ip_pkt_list_tot) - 1; |
3528 | diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c |
3529 | index a89061d59c74..36280e114959 100644 |
3530 | --- a/net/wireless/nl80211.c |
3531 | +++ b/net/wireless/nl80211.c |
3532 | @@ -4081,7 +4081,7 @@ static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
3533 | struct nlattr *rate; |
3534 | u32 bitrate; |
3535 | u16 bitrate_compat; |
3536 | - enum nl80211_attrs rate_flg; |
3537 | + enum nl80211_rate_info rate_flg; |
3538 | |
3539 | rate = nla_nest_start(msg, attr); |
3540 | if (!rate) |
3541 | diff --git a/net/wireless/util.c b/net/wireless/util.c |
3542 | index c921c2eed15d..bb54d9db82df 100644 |
3543 | --- a/net/wireless/util.c |
3544 | +++ b/net/wireless/util.c |
3545 | @@ -663,7 +663,7 @@ __ieee80211_amsdu_copy_frag(struct sk_buff *skb, struct sk_buff *frame, |
3546 | int offset, int len) |
3547 | { |
3548 | struct skb_shared_info *sh = skb_shinfo(skb); |
3549 | - const skb_frag_t *frag = &sh->frags[-1]; |
3550 | + const skb_frag_t *frag = &sh->frags[0]; |
3551 | struct page *frag_page; |
3552 | void *frag_ptr; |
3553 | int frag_len, frag_size; |
3554 | @@ -676,10 +676,10 @@ __ieee80211_amsdu_copy_frag(struct sk_buff *skb, struct sk_buff *frame, |
3555 | |
3556 | while (offset >= frag_size) { |
3557 | offset -= frag_size; |
3558 | - frag++; |
3559 | frag_page = skb_frag_page(frag); |
3560 | frag_ptr = skb_frag_address(frag); |
3561 | frag_size = skb_frag_size(frag); |
3562 | + frag++; |
3563 | } |
3564 | |
3565 | frag_ptr += offset; |
3566 | @@ -691,12 +691,12 @@ __ieee80211_amsdu_copy_frag(struct sk_buff *skb, struct sk_buff *frame, |
3567 | len -= cur_len; |
3568 | |
3569 | while (len > 0) { |
3570 | - frag++; |
3571 | frag_len = skb_frag_size(frag); |
3572 | cur_len = min(len, frag_len); |
3573 | __frame_add_frag(frame, skb_frag_page(frag), |
3574 | skb_frag_address(frag), cur_len, frag_len); |
3575 | len -= cur_len; |
3576 | + frag++; |
3577 | } |
3578 | } |
3579 | |
3580 | diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c |
3581 | index ccfdc7115a83..a00ec715aa46 100644 |
3582 | --- a/net/xfrm/xfrm_ipcomp.c |
3583 | +++ b/net/xfrm/xfrm_ipcomp.c |
3584 | @@ -283,7 +283,7 @@ static struct crypto_comp * __percpu *ipcomp_alloc_tfms(const char *alg_name) |
3585 | struct crypto_comp *tfm; |
3586 | |
3587 | /* This can be any valid CPU ID so we don't need locking. */ |
3588 | - tfm = __this_cpu_read(*pos->tfms); |
3589 | + tfm = this_cpu_read(*pos->tfms); |
3590 | |
3591 | if (!strcmp(crypto_comp_name(tfm), alg_name)) { |
3592 | pos->users++; |
3593 | diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c |
3594 | index 13e0611a9085..fdb9742d934e 100644 |
3595 | --- a/net/xfrm/xfrm_state.c |
3596 | +++ b/net/xfrm/xfrm_state.c |
3597 | @@ -1883,6 +1883,11 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen |
3598 | struct xfrm_mgr *km; |
3599 | struct xfrm_policy *pol = NULL; |
3600 | |
3601 | +#ifdef CONFIG_COMPAT |
3602 | + if (in_compat_syscall()) |
3603 | + return -EOPNOTSUPP; |
3604 | +#endif |
3605 | + |
3606 | if (!optval && !optlen) { |
3607 | xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL); |
3608 | xfrm_sk_policy_insert(sk, XFRM_POLICY_OUT, NULL); |
3609 | diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c |
3610 | index 5d33967d9aa1..6a029358bfd1 100644 |
3611 | --- a/net/xfrm/xfrm_user.c |
3612 | +++ b/net/xfrm/xfrm_user.c |
3613 | @@ -121,22 +121,17 @@ static inline int verify_replay(struct xfrm_usersa_info *p, |
3614 | struct nlattr *rt = attrs[XFRMA_REPLAY_ESN_VAL]; |
3615 | struct xfrm_replay_state_esn *rs; |
3616 | |
3617 | - if (p->flags & XFRM_STATE_ESN) { |
3618 | - if (!rt) |
3619 | - return -EINVAL; |
3620 | + if (!rt) |
3621 | + return (p->flags & XFRM_STATE_ESN) ? -EINVAL : 0; |
3622 | |
3623 | - rs = nla_data(rt); |
3624 | + rs = nla_data(rt); |
3625 | |
3626 | - if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8) |
3627 | - return -EINVAL; |
3628 | - |
3629 | - if (nla_len(rt) < xfrm_replay_state_esn_len(rs) && |
3630 | - nla_len(rt) != sizeof(*rs)) |
3631 | - return -EINVAL; |
3632 | - } |
3633 | + if (rs->bmp_len > XFRMA_REPLAY_ESN_MAX / sizeof(rs->bmp[0]) / 8) |
3634 | + return -EINVAL; |
3635 | |
3636 | - if (!rt) |
3637 | - return 0; |
3638 | + if (nla_len(rt) < xfrm_replay_state_esn_len(rs) && |
3639 | + nla_len(rt) != sizeof(*rs)) |
3640 | + return -EINVAL; |
3641 | |
3642 | /* As only ESP and AH support ESN feature. */ |
3643 | if ((p->id.proto != IPPROTO_ESP) && (p->id.proto != IPPROTO_AH)) |
3644 | diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c |
3645 | index b8278f3af9da..17627d8d5a26 100644 |
3646 | --- a/security/selinux/hooks.c |
3647 | +++ b/security/selinux/hooks.c |
3648 | @@ -406,18 +406,6 @@ static void superblock_free_security(struct super_block *sb) |
3649 | kfree(sbsec); |
3650 | } |
3651 | |
3652 | -/* The file system's label must be initialized prior to use. */ |
3653 | - |
3654 | -static const char *labeling_behaviors[7] = { |
3655 | - "uses xattr", |
3656 | - "uses transition SIDs", |
3657 | - "uses task SIDs", |
3658 | - "uses genfs_contexts", |
3659 | - "not configured for labeling", |
3660 | - "uses mountpoint labeling", |
3661 | - "uses native labeling", |
3662 | -}; |
3663 | - |
3664 | static inline int inode_doinit(struct inode *inode) |
3665 | { |
3666 | return inode_doinit_with_dentry(inode, NULL); |
3667 | @@ -528,10 +516,6 @@ static int sb_finish_set_opts(struct super_block *sb) |
3668 | } |
3669 | } |
3670 | |
3671 | - if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors)) |
3672 | - printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n", |
3673 | - sb->s_id, sb->s_type->name); |
3674 | - |
3675 | sbsec->flags |= SE_SBINITIALIZED; |
3676 | if (selinux_is_sblabel_mnt(sb)) |
3677 | sbsec->flags |= SBLABEL_MNT; |
3678 | diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c |
3679 | index 73275a92f2e2..d656b7c98394 100644 |
3680 | --- a/security/selinux/ss/services.c |
3681 | +++ b/security/selinux/ss/services.c |
3682 | @@ -155,7 +155,7 @@ static int selinux_set_mapping(struct policydb *pol, |
3683 | } |
3684 | |
3685 | k = 0; |
3686 | - while (p_in->perms && p_in->perms[k]) { |
3687 | + while (p_in->perms[k]) { |
3688 | /* An empty permission string skips ahead */ |
3689 | if (!*p_in->perms[k]) { |
3690 | k++; |
3691 | diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c |
3692 | index 3e7c3573871d..fa8741afadf5 100644 |
3693 | --- a/sound/core/oss/pcm_oss.c |
3694 | +++ b/sound/core/oss/pcm_oss.c |
3695 | @@ -1361,7 +1361,7 @@ static ssize_t snd_pcm_oss_write2(struct snd_pcm_substream *substream, const cha |
3696 | static ssize_t snd_pcm_oss_write1(struct snd_pcm_substream *substream, const char __user *buf, size_t bytes) |
3697 | { |
3698 | size_t xfer = 0; |
3699 | - ssize_t tmp; |
3700 | + ssize_t tmp = 0; |
3701 | struct snd_pcm_runtime *runtime = substream->runtime; |
3702 | |
3703 | if (atomic_read(&substream->mmap_count)) |
3704 | @@ -1468,7 +1468,7 @@ static ssize_t snd_pcm_oss_read2(struct snd_pcm_substream *substream, char *buf, |
3705 | static ssize_t snd_pcm_oss_read1(struct snd_pcm_substream *substream, char __user *buf, size_t bytes) |
3706 | { |
3707 | size_t xfer = 0; |
3708 | - ssize_t tmp; |
3709 | + ssize_t tmp = 0; |
3710 | struct snd_pcm_runtime *runtime = substream->runtime; |
3711 | |
3712 | if (atomic_read(&substream->mmap_count)) |
3713 | diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c |
3714 | index 9d33c1e85c79..d503285867e7 100644 |
3715 | --- a/sound/core/pcm_native.c |
3716 | +++ b/sound/core/pcm_native.c |
3717 | @@ -3410,7 +3410,7 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream, |
3718 | area, |
3719 | substream->runtime->dma_area, |
3720 | substream->runtime->dma_addr, |
3721 | - area->vm_end - area->vm_start); |
3722 | + substream->runtime->dma_bytes); |
3723 | #endif /* CONFIG_X86 */ |
3724 | /* mmap with fault handler */ |
3725 | area->vm_ops = &snd_pcm_vm_ops_data_fault; |
3726 | diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c |
3727 | index 1cd7f8b0bf77..45655b9108e8 100644 |
3728 | --- a/sound/usb/quirks.c |
3729 | +++ b/sound/usb/quirks.c |
3730 | @@ -1175,6 +1175,7 @@ static bool is_teac_dsd_dac(unsigned int id) |
3731 | switch (id) { |
3732 | case USB_ID(0x0644, 0x8043): /* TEAC UD-501/UD-503/NT-503 */ |
3733 | case USB_ID(0x0644, 0x8044): /* Esoteric D-05X */ |
3734 | + case USB_ID(0x0644, 0x804a): /* TEAC UD-301 */ |
3735 | return true; |
3736 | } |
3737 | return false; |