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Contents of /trunk/kernel-alx/patches-3.10/0152-3.10.53-all-fixes.patch

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Revision 2640 - (show annotations) (download)
Tue Jul 21 16:20:20 2015 UTC (8 years, 9 months ago) by niro
File size: 41028 byte(s)
-linux-3.10.53
1 diff --git a/Makefile b/Makefile
2 index b94f00938acc..2ac415a7e937 100644
3 --- a/Makefile
4 +++ b/Makefile
5 @@ -1,6 +1,6 @@
6 VERSION = 3
7 PATCHLEVEL = 10
8 -SUBLEVEL = 52
9 +SUBLEVEL = 53
10 EXTRAVERSION =
11 NAME = TOSSUG Baby Fish
12
13 diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
14 index dfb0019bf05b..6663604a902a 100644
15 --- a/arch/sparc/include/asm/pgtable_64.h
16 +++ b/arch/sparc/include/asm/pgtable_64.h
17 @@ -24,7 +24,8 @@
18
19 /* The kernel image occupies 0x4000000 to 0x6000000 (4MB --> 96MB).
20 * The page copy blockops can use 0x6000000 to 0x8000000.
21 - * The TSB is mapped in the 0x8000000 to 0xa000000 range.
22 + * The 8K TSB is mapped in the 0x8000000 to 0x8400000 range.
23 + * The 4M TSB is mapped in the 0x8400000 to 0x8800000 range.
24 * The PROM resides in an area spanning 0xf0000000 to 0x100000000.
25 * The vmalloc area spans 0x100000000 to 0x200000000.
26 * Since modules need to be in the lowest 32-bits of the address space,
27 @@ -33,7 +34,8 @@
28 * 0x400000000.
29 */
30 #define TLBTEMP_BASE _AC(0x0000000006000000,UL)
31 -#define TSBMAP_BASE _AC(0x0000000008000000,UL)
32 +#define TSBMAP_8K_BASE _AC(0x0000000008000000,UL)
33 +#define TSBMAP_4M_BASE _AC(0x0000000008400000,UL)
34 #define MODULES_VADDR _AC(0x0000000010000000,UL)
35 #define MODULES_LEN _AC(0x00000000e0000000,UL)
36 #define MODULES_END _AC(0x00000000f0000000,UL)
37 diff --git a/arch/sparc/include/asm/tlbflush_64.h b/arch/sparc/include/asm/tlbflush_64.h
38 index f0d6a9700f4c..1a4bb971e06d 100644
39 --- a/arch/sparc/include/asm/tlbflush_64.h
40 +++ b/arch/sparc/include/asm/tlbflush_64.h
41 @@ -35,6 +35,8 @@ static inline void flush_tlb_range(struct vm_area_struct *vma,
42 {
43 }
44
45 +void flush_tlb_kernel_range(unsigned long start, unsigned long end);
46 +
47 #define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
48
49 extern void flush_tlb_pending(void);
50 @@ -49,11 +51,6 @@ extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end);
51
52 #ifndef CONFIG_SMP
53
54 -#define flush_tlb_kernel_range(start,end) \
55 -do { flush_tsb_kernel_range(start,end); \
56 - __flush_tlb_kernel_range(start,end); \
57 -} while (0)
58 -
59 static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
60 {
61 __flush_tlb_page(CTX_HWBITS(mm->context), vaddr);
62 @@ -64,11 +61,6 @@ static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vad
63 extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
64 extern void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr);
65
66 -#define flush_tlb_kernel_range(start, end) \
67 -do { flush_tsb_kernel_range(start,end); \
68 - smp_flush_tlb_kernel_range(start, end); \
69 -} while (0)
70 -
71 #define global_flush_tlb_page(mm, vaddr) \
72 smp_flush_tlb_page(mm, vaddr)
73
74 diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
75 index 54df554b82d9..fa4c900a0d1f 100644
76 --- a/arch/sparc/kernel/ldc.c
77 +++ b/arch/sparc/kernel/ldc.c
78 @@ -1336,7 +1336,7 @@ int ldc_connect(struct ldc_channel *lp)
79 if (!(lp->flags & LDC_FLAG_ALLOCED_QUEUES) ||
80 !(lp->flags & LDC_FLAG_REGISTERED_QUEUES) ||
81 lp->hs_state != LDC_HS_OPEN)
82 - err = -EINVAL;
83 + err = ((lp->hs_state > LDC_HS_OPEN) ? 0 : -EINVAL);
84 else
85 err = start_handshake(lp);
86
87 diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
88 index 77539eda928c..8565ecd7d48a 100644
89 --- a/arch/sparc/kernel/smp_64.c
90 +++ b/arch/sparc/kernel/smp_64.c
91 @@ -150,7 +150,7 @@ void cpu_panic(void)
92 #define NUM_ROUNDS 64 /* magic value */
93 #define NUM_ITERS 5 /* likewise */
94
95 -static DEFINE_SPINLOCK(itc_sync_lock);
96 +static DEFINE_RAW_SPINLOCK(itc_sync_lock);
97 static unsigned long go[SLAVE + 1];
98
99 #define DEBUG_TICK_SYNC 0
100 @@ -258,7 +258,7 @@ static void smp_synchronize_one_tick(int cpu)
101 go[MASTER] = 0;
102 membar_safe("#StoreLoad");
103
104 - spin_lock_irqsave(&itc_sync_lock, flags);
105 + raw_spin_lock_irqsave(&itc_sync_lock, flags);
106 {
107 for (i = 0; i < NUM_ROUNDS*NUM_ITERS; i++) {
108 while (!go[MASTER])
109 @@ -269,7 +269,7 @@ static void smp_synchronize_one_tick(int cpu)
110 membar_safe("#StoreLoad");
111 }
112 }
113 - spin_unlock_irqrestore(&itc_sync_lock, flags);
114 + raw_spin_unlock_irqrestore(&itc_sync_lock, flags);
115 }
116
117 #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU)
118 diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
119 index f7c72b6efc27..d066eb18650c 100644
120 --- a/arch/sparc/kernel/sys32.S
121 +++ b/arch/sparc/kernel/sys32.S
122 @@ -44,7 +44,7 @@ SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
123 SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
124 SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
125 SIGN1(sys32_select, compat_sys_select, %o0)
126 -SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
127 +SIGN1(sys32_futex, compat_sys_futex, %o1)
128 SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
129 SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
130 SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
131 diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
132 index 8201c25e7669..4db8898199f7 100644
133 --- a/arch/sparc/kernel/unaligned_64.c
134 +++ b/arch/sparc/kernel/unaligned_64.c
135 @@ -163,17 +163,23 @@ static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs)
136 unsigned long compute_effective_address(struct pt_regs *regs,
137 unsigned int insn, unsigned int rd)
138 {
139 + int from_kernel = (regs->tstate & TSTATE_PRIV) != 0;
140 unsigned int rs1 = (insn >> 14) & 0x1f;
141 unsigned int rs2 = insn & 0x1f;
142 - int from_kernel = (regs->tstate & TSTATE_PRIV) != 0;
143 + unsigned long addr;
144
145 if (insn & 0x2000) {
146 maybe_flush_windows(rs1, 0, rd, from_kernel);
147 - return (fetch_reg(rs1, regs) + sign_extend_imm13(insn));
148 + addr = (fetch_reg(rs1, regs) + sign_extend_imm13(insn));
149 } else {
150 maybe_flush_windows(rs1, rs2, rd, from_kernel);
151 - return (fetch_reg(rs1, regs) + fetch_reg(rs2, regs));
152 + addr = (fetch_reg(rs1, regs) + fetch_reg(rs2, regs));
153 }
154 +
155 + if (!from_kernel && test_thread_flag(TIF_32BIT))
156 + addr &= 0xffffffff;
157 +
158 + return addr;
159 }
160
161 /* This is just to make gcc think die_if_kernel does return... */
162 diff --git a/arch/sparc/lib/NG2memcpy.S b/arch/sparc/lib/NG2memcpy.S
163 index 2c20ad63ddbf..30eee6e8a81b 100644
164 --- a/arch/sparc/lib/NG2memcpy.S
165 +++ b/arch/sparc/lib/NG2memcpy.S
166 @@ -236,6 +236,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
167 */
168 VISEntryHalf
169
170 + membar #Sync
171 alignaddr %o1, %g0, %g0
172
173 add %o1, (64 - 1), %o4
174 diff --git a/arch/sparc/math-emu/math_32.c b/arch/sparc/math-emu/math_32.c
175 index aa4d55b0bdf0..5ce8f2f64604 100644
176 --- a/arch/sparc/math-emu/math_32.c
177 +++ b/arch/sparc/math-emu/math_32.c
178 @@ -499,7 +499,7 @@ static int do_one_mathemu(u32 insn, unsigned long *pfsr, unsigned long *fregs)
179 case 0: fsr = *pfsr;
180 if (IR == -1) IR = 2;
181 /* fcc is always fcc0 */
182 - fsr &= ~0xc00; fsr |= (IR << 10); break;
183 + fsr &= ~0xc00; fsr |= (IR << 10);
184 *pfsr = fsr;
185 break;
186 case 1: rd->s = IR; break;
187 diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
188 index 5062ff389e83..ea83f82464da 100644
189 --- a/arch/sparc/mm/fault_64.c
190 +++ b/arch/sparc/mm/fault_64.c
191 @@ -95,38 +95,51 @@ static unsigned int get_user_insn(unsigned long tpc)
192 pte_t *ptep, pte;
193 unsigned long pa;
194 u32 insn = 0;
195 - unsigned long pstate;
196
197 - if (pgd_none(*pgdp))
198 - goto outret;
199 + if (pgd_none(*pgdp) || unlikely(pgd_bad(*pgdp)))
200 + goto out;
201 pudp = pud_offset(pgdp, tpc);
202 - if (pud_none(*pudp))
203 - goto outret;
204 - pmdp = pmd_offset(pudp, tpc);
205 - if (pmd_none(*pmdp))
206 - goto outret;
207 -
208 - /* This disables preemption for us as well. */
209 - __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
210 - __asm__ __volatile__("wrpr %0, %1, %%pstate"
211 - : : "r" (pstate), "i" (PSTATE_IE));
212 - ptep = pte_offset_map(pmdp, tpc);
213 - pte = *ptep;
214 - if (!pte_present(pte))
215 + if (pud_none(*pudp) || unlikely(pud_bad(*pudp)))
216 goto out;
217
218 - pa = (pte_pfn(pte) << PAGE_SHIFT);
219 - pa += (tpc & ~PAGE_MASK);
220 -
221 - /* Use phys bypass so we don't pollute dtlb/dcache. */
222 - __asm__ __volatile__("lduwa [%1] %2, %0"
223 - : "=r" (insn)
224 - : "r" (pa), "i" (ASI_PHYS_USE_EC));
225 + /* This disables preemption for us as well. */
226 + local_irq_disable();
227
228 + pmdp = pmd_offset(pudp, tpc);
229 + if (pmd_none(*pmdp) || unlikely(pmd_bad(*pmdp)))
230 + goto out_irq_enable;
231 +
232 +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
233 + if (pmd_trans_huge(*pmdp)) {
234 + if (pmd_trans_splitting(*pmdp))
235 + goto out_irq_enable;
236 +
237 + pa = pmd_pfn(*pmdp) << PAGE_SHIFT;
238 + pa += tpc & ~HPAGE_MASK;
239 +
240 + /* Use phys bypass so we don't pollute dtlb/dcache. */
241 + __asm__ __volatile__("lduwa [%1] %2, %0"
242 + : "=r" (insn)
243 + : "r" (pa), "i" (ASI_PHYS_USE_EC));
244 + } else
245 +#endif
246 + {
247 + ptep = pte_offset_map(pmdp, tpc);
248 + pte = *ptep;
249 + if (pte_present(pte)) {
250 + pa = (pte_pfn(pte) << PAGE_SHIFT);
251 + pa += (tpc & ~PAGE_MASK);
252 +
253 + /* Use phys bypass so we don't pollute dtlb/dcache. */
254 + __asm__ __volatile__("lduwa [%1] %2, %0"
255 + : "=r" (insn)
256 + : "r" (pa), "i" (ASI_PHYS_USE_EC));
257 + }
258 + pte_unmap(ptep);
259 + }
260 +out_irq_enable:
261 + local_irq_enable();
262 out:
263 - pte_unmap(ptep);
264 - __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
265 -outret:
266 return insn;
267 }
268
269 @@ -152,7 +165,8 @@ show_signal_msg(struct pt_regs *regs, int sig, int code,
270 }
271
272 static void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
273 - unsigned int insn, int fault_code)
274 + unsigned long fault_addr, unsigned int insn,
275 + int fault_code)
276 {
277 unsigned long addr;
278 siginfo_t info;
279 @@ -160,10 +174,18 @@ static void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
280 info.si_code = code;
281 info.si_signo = sig;
282 info.si_errno = 0;
283 - if (fault_code & FAULT_CODE_ITLB)
284 + if (fault_code & FAULT_CODE_ITLB) {
285 addr = regs->tpc;
286 - else
287 - addr = compute_effective_address(regs, insn, 0);
288 + } else {
289 + /* If we were able to probe the faulting instruction, use it
290 + * to compute a precise fault address. Otherwise use the fault
291 + * time provided address which may only have page granularity.
292 + */
293 + if (insn)
294 + addr = compute_effective_address(regs, insn, 0);
295 + else
296 + addr = fault_addr;
297 + }
298 info.si_addr = (void __user *) addr;
299 info.si_trapno = 0;
300
301 @@ -238,7 +260,7 @@ static void __kprobes do_kernel_fault(struct pt_regs *regs, int si_code,
302 /* The si_code was set to make clear whether
303 * this was a SEGV_MAPERR or SEGV_ACCERR fault.
304 */
305 - do_fault_siginfo(si_code, SIGSEGV, regs, insn, fault_code);
306 + do_fault_siginfo(si_code, SIGSEGV, regs, address, insn, fault_code);
307 return;
308 }
309
310 @@ -258,18 +280,6 @@ static void noinline __kprobes bogus_32bit_fault_tpc(struct pt_regs *regs)
311 show_regs(regs);
312 }
313
314 -static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs,
315 - unsigned long addr)
316 -{
317 - static int times;
318 -
319 - if (times++ < 10)
320 - printk(KERN_ERR "FAULT[%s:%d]: 32-bit process "
321 - "reports 64-bit fault address [%lx]\n",
322 - current->comm, current->pid, addr);
323 - show_regs(regs);
324 -}
325 -
326 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
327 {
328 struct mm_struct *mm = current->mm;
329 @@ -298,10 +308,8 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
330 goto intr_or_no_mm;
331 }
332 }
333 - if (unlikely((address >> 32) != 0)) {
334 - bogus_32bit_fault_address(regs, address);
335 + if (unlikely((address >> 32) != 0))
336 goto intr_or_no_mm;
337 - }
338 }
339
340 if (regs->tstate & TSTATE_PRIV) {
341 @@ -519,7 +527,7 @@ do_sigbus:
342 * Send a sigbus, regardless of whether we were in kernel
343 * or user mode.
344 */
345 - do_fault_siginfo(BUS_ADRERR, SIGBUS, regs, insn, fault_code);
346 + do_fault_siginfo(BUS_ADRERR, SIGBUS, regs, address, insn, fault_code);
347
348 /* Kernel mode? Handle exceptions or die */
349 if (regs->tstate & TSTATE_PRIV)
350 diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
351 index 04fd55a6e461..a751023dbdcd 100644
352 --- a/arch/sparc/mm/init_64.c
353 +++ b/arch/sparc/mm/init_64.c
354 @@ -350,6 +350,10 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *
355
356 mm = vma->vm_mm;
357
358 + /* Don't insert a non-valid PTE into the TSB, we'll deadlock. */
359 + if (!pte_accessible(mm, pte))
360 + return;
361 +
362 spin_lock_irqsave(&mm->context.lock, flags);
363
364 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
365 @@ -2764,3 +2768,26 @@ void hugetlb_setup(struct pt_regs *regs)
366 }
367 }
368 #endif
369 +
370 +#ifdef CONFIG_SMP
371 +#define do_flush_tlb_kernel_range smp_flush_tlb_kernel_range
372 +#else
373 +#define do_flush_tlb_kernel_range __flush_tlb_kernel_range
374 +#endif
375 +
376 +void flush_tlb_kernel_range(unsigned long start, unsigned long end)
377 +{
378 + if (start < HI_OBP_ADDRESS && end > LOW_OBP_ADDRESS) {
379 + if (start < LOW_OBP_ADDRESS) {
380 + flush_tsb_kernel_range(start, LOW_OBP_ADDRESS);
381 + do_flush_tlb_kernel_range(start, LOW_OBP_ADDRESS);
382 + }
383 + if (end > HI_OBP_ADDRESS) {
384 + flush_tsb_kernel_range(end, HI_OBP_ADDRESS);
385 + do_flush_tlb_kernel_range(end, HI_OBP_ADDRESS);
386 + }
387 + } else {
388 + flush_tsb_kernel_range(start, end);
389 + do_flush_tlb_kernel_range(start, end);
390 + }
391 +}
392 diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
393 index 2cc3bce5ee91..71d99a6c75a7 100644
394 --- a/arch/sparc/mm/tsb.c
395 +++ b/arch/sparc/mm/tsb.c
396 @@ -133,7 +133,19 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_idx, unsign
397 mm->context.tsb_block[tsb_idx].tsb_nentries =
398 tsb_bytes / sizeof(struct tsb);
399
400 - base = TSBMAP_BASE;
401 + switch (tsb_idx) {
402 + case MM_TSB_BASE:
403 + base = TSBMAP_8K_BASE;
404 + break;
405 +#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
406 + case MM_TSB_HUGE:
407 + base = TSBMAP_4M_BASE;
408 + break;
409 +#endif
410 + default:
411 + BUG();
412 + }
413 +
414 tte = pgprot_val(PAGE_KERNEL_LOCKED);
415 tsb_paddr = __pa(mm->context.tsb_block[tsb_idx].tsb);
416 BUG_ON(tsb_paddr & (tsb_bytes - 1UL));
417 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
418 index 3dba2a70a00e..ec86177be1df 100644
419 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
420 +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
421 @@ -312,6 +312,7 @@ struct sw_tx_bd {
422 u8 flags;
423 /* Set on the first BD descriptor when there is a split BD */
424 #define BNX2X_TSO_SPLIT_BD (1<<0)
425 +#define BNX2X_HAS_SECOND_PBD (1<<1)
426 };
427
428 struct sw_rx_page {
429 diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
430 index b04f7f128f49..372a7557e1fa 100644
431 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
432 +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
433 @@ -180,6 +180,12 @@ static u16 bnx2x_free_tx_pkt(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata,
434 --nbd;
435 bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
436
437 + if (tx_buf->flags & BNX2X_HAS_SECOND_PBD) {
438 + /* Skip second parse bd... */
439 + --nbd;
440 + bd_idx = TX_BD(NEXT_TX_IDX(bd_idx));
441 + }
442 +
443 /* TSO headers+data bds share a common mapping. See bnx2x_tx_split() */
444 if (tx_buf->flags & BNX2X_TSO_SPLIT_BD) {
445 tx_data_bd = &txdata->tx_desc_ring[bd_idx].reg_bd;
446 @@ -3755,6 +3761,9 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
447 /* set encapsulation flag in start BD */
448 SET_FLAG(tx_start_bd->general_data,
449 ETH_TX_START_BD_TUNNEL_EXIST, 1);
450 +
451 + tx_buf->flags |= BNX2X_HAS_SECOND_PBD;
452 +
453 nbd++;
454 } else if (xmit_type & XMIT_CSUM) {
455 /* Set PBD in checksum offload case w/o encapsulation */
456 diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
457 index 155ef4bbde91..9be91cb4f4a3 100644
458 --- a/drivers/net/macvlan.c
459 +++ b/drivers/net/macvlan.c
460 @@ -500,6 +500,7 @@ static int macvlan_init(struct net_device *dev)
461 (lowerdev->state & MACVLAN_STATE_MASK);
462 dev->features = lowerdev->features & MACVLAN_FEATURES;
463 dev->features |= NETIF_F_LLTX;
464 + dev->vlan_features = lowerdev->vlan_features & MACVLAN_FEATURES;
465 dev->gso_max_size = lowerdev->gso_max_size;
466 dev->iflink = lowerdev->ifindex;
467 dev->hard_header_len = lowerdev->hard_header_len;
468 diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
469 index 7f10588fe668..8161c3f066a3 100644
470 --- a/drivers/net/ppp/pptp.c
471 +++ b/drivers/net/ppp/pptp.c
472 @@ -281,7 +281,7 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb)
473 nf_reset(skb);
474
475 skb->ip_summed = CHECKSUM_NONE;
476 - ip_select_ident(skb, &rt->dst, NULL);
477 + ip_select_ident(skb, NULL);
478 ip_send_check(iph);
479
480 ip_local_out(skb);
481 diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
482 index fcbd4eee52cc..a1dc186c6f66 100644
483 --- a/drivers/net/vxlan.c
484 +++ b/drivers/net/vxlan.c
485 @@ -1093,7 +1093,7 @@ static netdev_tx_t vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
486 iph->daddr = dst;
487 iph->saddr = fl4.saddr;
488 iph->ttl = ttl ? : ip4_dst_hoplimit(&rt->dst);
489 - __ip_select_ident(iph, &rt->dst, (skb_shinfo(skb)->gso_segs ?: 1) - 1);
490 + __ip_select_ident(iph, skb_shinfo(skb)->gso_segs ?: 1);
491
492 nf_reset(skb);
493
494 diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c
495 index 160e7510aca6..0787b9756165 100644
496 --- a/drivers/sbus/char/bbc_envctrl.c
497 +++ b/drivers/sbus/char/bbc_envctrl.c
498 @@ -452,6 +452,9 @@ static void attach_one_temp(struct bbc_i2c_bus *bp, struct platform_device *op,
499 if (!tp)
500 return;
501
502 + INIT_LIST_HEAD(&tp->bp_list);
503 + INIT_LIST_HEAD(&tp->glob_list);
504 +
505 tp->client = bbc_i2c_attach(bp, op);
506 if (!tp->client) {
507 kfree(tp);
508 @@ -497,6 +500,9 @@ static void attach_one_fan(struct bbc_i2c_bus *bp, struct platform_device *op,
509 if (!fp)
510 return;
511
512 + INIT_LIST_HEAD(&fp->bp_list);
513 + INIT_LIST_HEAD(&fp->glob_list);
514 +
515 fp->client = bbc_i2c_attach(bp, op);
516 if (!fp->client) {
517 kfree(fp);
518 diff --git a/drivers/sbus/char/bbc_i2c.c b/drivers/sbus/char/bbc_i2c.c
519 index c1441ed282eb..e0e6cd605cca 100644
520 --- a/drivers/sbus/char/bbc_i2c.c
521 +++ b/drivers/sbus/char/bbc_i2c.c
522 @@ -301,13 +301,18 @@ static struct bbc_i2c_bus * attach_one_i2c(struct platform_device *op, int index
523 if (!bp)
524 return NULL;
525
526 + INIT_LIST_HEAD(&bp->temps);
527 + INIT_LIST_HEAD(&bp->fans);
528 +
529 bp->i2c_control_regs = of_ioremap(&op->resource[0], 0, 0x2, "bbc_i2c_regs");
530 if (!bp->i2c_control_regs)
531 goto fail;
532
533 - bp->i2c_bussel_reg = of_ioremap(&op->resource[1], 0, 0x1, "bbc_i2c_bussel");
534 - if (!bp->i2c_bussel_reg)
535 - goto fail;
536 + if (op->num_resources == 2) {
537 + bp->i2c_bussel_reg = of_ioremap(&op->resource[1], 0, 0x1, "bbc_i2c_bussel");
538 + if (!bp->i2c_bussel_reg)
539 + goto fail;
540 + }
541
542 bp->waiting = 0;
543 init_waitqueue_head(&bp->wq);
544 diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
545 index a422c8b55a47..aa53fee1df63 100644
546 --- a/drivers/tty/serial/sunsab.c
547 +++ b/drivers/tty/serial/sunsab.c
548 @@ -157,6 +157,15 @@ receive_chars(struct uart_sunsab_port *up,
549 (up->port.line == up->port.cons->index))
550 saw_console_brk = 1;
551
552 + if (count == 0) {
553 + if (unlikely(stat->sreg.isr1 & SAB82532_ISR1_BRK)) {
554 + stat->sreg.isr0 &= ~(SAB82532_ISR0_PERR |
555 + SAB82532_ISR0_FERR);
556 + up->port.icount.brk++;
557 + uart_handle_break(&up->port);
558 + }
559 + }
560 +
561 for (i = 0; i < count; i++) {
562 unsigned char ch = buf[i], flag;
563
564 diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
565 index 6ca347a0717e..bb06fd26a7bd 100644
566 --- a/include/net/inetpeer.h
567 +++ b/include/net/inetpeer.h
568 @@ -41,14 +41,13 @@ struct inet_peer {
569 struct rcu_head gc_rcu;
570 };
571 /*
572 - * Once inet_peer is queued for deletion (refcnt == -1), following fields
573 - * are not available: rid, ip_id_count
574 + * Once inet_peer is queued for deletion (refcnt == -1), following field
575 + * is not available: rid
576 * We can share memory with rcu_head to help keep inet_peer small.
577 */
578 union {
579 struct {
580 atomic_t rid; /* Frag reception counter */
581 - atomic_t ip_id_count; /* IP ID for the next packet */
582 };
583 struct rcu_head rcu;
584 struct inet_peer *gc_next;
585 @@ -166,7 +165,7 @@ extern void inetpeer_invalidate_tree(struct inet_peer_base *);
586 extern void inetpeer_invalidate_family(int family);
587
588 /*
589 - * temporary check to make sure we dont access rid, ip_id_count, tcp_ts,
590 + * temporary check to make sure we dont access rid, tcp_ts,
591 * tcp_ts_stamp if no refcount is taken on inet_peer
592 */
593 static inline void inet_peer_refcheck(const struct inet_peer *p)
594 @@ -174,13 +173,4 @@ static inline void inet_peer_refcheck(const struct inet_peer *p)
595 WARN_ON_ONCE(atomic_read(&p->refcnt) <= 0);
596 }
597
598 -
599 -/* can be called with or without local BH being disabled */
600 -static inline int inet_getid(struct inet_peer *p, int more)
601 -{
602 - more++;
603 - inet_peer_refcheck(p);
604 - return atomic_add_return(more, &p->ip_id_count) - more;
605 -}
606 -
607 #endif /* _NET_INETPEER_H */
608 diff --git a/include/net/ip.h b/include/net/ip.h
609 index 788f1d8a796f..8695359982d1 100644
610 --- a/include/net/ip.h
611 +++ b/include/net/ip.h
612 @@ -252,9 +252,10 @@ int ip_dont_fragment(struct sock *sk, struct dst_entry *dst)
613 !(dst_metric_locked(dst, RTAX_MTU)));
614 }
615
616 -extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more);
617 +u32 ip_idents_reserve(u32 hash, int segs);
618 +void __ip_select_ident(struct iphdr *iph, int segs);
619
620 -static inline void ip_select_ident(struct sk_buff *skb, struct dst_entry *dst, struct sock *sk)
621 +static inline void ip_select_ident_segs(struct sk_buff *skb, struct sock *sk, int segs)
622 {
623 struct iphdr *iph = ip_hdr(skb);
624
625 @@ -264,24 +265,20 @@ static inline void ip_select_ident(struct sk_buff *skb, struct dst_entry *dst, s
626 * does not change, they drop every other packet in
627 * a TCP stream using header compression.
628 */
629 - iph->id = (sk && inet_sk(sk)->inet_daddr) ?
630 - htons(inet_sk(sk)->inet_id++) : 0;
631 - } else
632 - __ip_select_ident(iph, dst, 0);
633 -}
634 -
635 -static inline void ip_select_ident_more(struct sk_buff *skb, struct dst_entry *dst, struct sock *sk, int more)
636 -{
637 - struct iphdr *iph = ip_hdr(skb);
638 -
639 - if ((iph->frag_off & htons(IP_DF)) && !skb->local_df) {
640 if (sk && inet_sk(sk)->inet_daddr) {
641 iph->id = htons(inet_sk(sk)->inet_id);
642 - inet_sk(sk)->inet_id += 1 + more;
643 - } else
644 + inet_sk(sk)->inet_id += segs;
645 + } else {
646 iph->id = 0;
647 - } else
648 - __ip_select_ident(iph, dst, more);
649 + }
650 + } else {
651 + __ip_select_ident(iph, segs);
652 + }
653 +}
654 +
655 +static inline void ip_select_ident(struct sk_buff *skb, struct sock *sk)
656 +{
657 + ip_select_ident_segs(skb, sk, 1);
658 }
659
660 /*
661 diff --git a/include/net/ipv6.h b/include/net/ipv6.h
662 index 9e093fc33dab..087370ff05f1 100644
663 --- a/include/net/ipv6.h
664 +++ b/include/net/ipv6.h
665 @@ -530,14 +530,19 @@ static inline u32 ipv6_addr_hash(const struct in6_addr *a)
666 }
667
668 /* more secured version of ipv6_addr_hash() */
669 -static inline u32 ipv6_addr_jhash(const struct in6_addr *a)
670 +static inline u32 __ipv6_addr_jhash(const struct in6_addr *a, const u32 initval)
671 {
672 u32 v = (__force u32)a->s6_addr32[0] ^ (__force u32)a->s6_addr32[1];
673
674 return jhash_3words(v,
675 (__force u32)a->s6_addr32[2],
676 (__force u32)a->s6_addr32[3],
677 - ipv6_hash_secret);
678 + initval);
679 +}
680 +
681 +static inline u32 ipv6_addr_jhash(const struct in6_addr *a)
682 +{
683 + return __ipv6_addr_jhash(a, ipv6_hash_secret);
684 }
685
686 static inline bool ipv6_addr_loopback(const struct in6_addr *a)
687 @@ -649,8 +654,6 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
688 return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
689 }
690
691 -extern void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
692 -
693 /*
694 * Header manipulation
695 */
696 diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h
697 index c2e542b27a5a..b1c3d1c63c4e 100644
698 --- a/include/net/secure_seq.h
699 +++ b/include/net/secure_seq.h
700 @@ -3,8 +3,6 @@
701
702 #include <linux/types.h>
703
704 -extern __u32 secure_ip_id(__be32 daddr);
705 -extern __u32 secure_ipv6_id(const __be32 daddr[4]);
706 extern u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
707 extern u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
708 __be16 dport);
709 diff --git a/net/compat.c b/net/compat.c
710 index f50161fb812e..cbc1a2a26587 100644
711 --- a/net/compat.c
712 +++ b/net/compat.c
713 @@ -85,7 +85,7 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
714 {
715 int tot_len;
716
717 - if (kern_msg->msg_namelen) {
718 + if (kern_msg->msg_name && kern_msg->msg_namelen) {
719 if (mode == VERIFY_READ) {
720 int err = move_addr_to_kernel(kern_msg->msg_name,
721 kern_msg->msg_namelen,
722 @@ -93,10 +93,11 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
723 if (err < 0)
724 return err;
725 }
726 - if (kern_msg->msg_name)
727 - kern_msg->msg_name = kern_address;
728 - } else
729 + kern_msg->msg_name = kern_address;
730 + } else {
731 kern_msg->msg_name = NULL;
732 + kern_msg->msg_namelen = 0;
733 + }
734
735 tot_len = iov_from_user_compat_to_kern(kern_iov,
736 (struct compat_iovec __user *)kern_msg->msg_iov,
737 diff --git a/net/core/iovec.c b/net/core/iovec.c
738 index 9a31515fb8e3..1117a26a8548 100644
739 --- a/net/core/iovec.c
740 +++ b/net/core/iovec.c
741 @@ -39,7 +39,7 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
742 {
743 int size, ct, err;
744
745 - if (m->msg_namelen) {
746 + if (m->msg_name && m->msg_namelen) {
747 if (mode == VERIFY_READ) {
748 void __user *namep;
749 namep = (void __user __force *) m->msg_name;
750 @@ -48,10 +48,10 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
751 if (err < 0)
752 return err;
753 }
754 - if (m->msg_name)
755 - m->msg_name = address;
756 + m->msg_name = address;
757 } else {
758 m->msg_name = NULL;
759 + m->msg_namelen = 0;
760 }
761
762 size = m->msg_iovlen * sizeof(struct iovec);
763 @@ -107,6 +107,10 @@ EXPORT_SYMBOL(memcpy_toiovecend);
764 int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
765 int offset, int len)
766 {
767 + /* No data? Done! */
768 + if (len == 0)
769 + return 0;
770 +
771 /* Skip over the finished iovecs */
772 while (offset >= iov->iov_len) {
773 offset -= iov->iov_len;
774 diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
775 index 8d9d05edd2eb..d0afc322b961 100644
776 --- a/net/core/secure_seq.c
777 +++ b/net/core/secure_seq.c
778 @@ -95,31 +95,6 @@ EXPORT_SYMBOL(secure_ipv6_port_ephemeral);
779 #endif
780
781 #ifdef CONFIG_INET
782 -__u32 secure_ip_id(__be32 daddr)
783 -{
784 - u32 hash[MD5_DIGEST_WORDS];
785 -
786 - net_secret_init();
787 - hash[0] = (__force __u32) daddr;
788 - hash[1] = net_secret[13];
789 - hash[2] = net_secret[14];
790 - hash[3] = net_secret[15];
791 -
792 - md5_transform(hash, net_secret);
793 -
794 - return hash[0];
795 -}
796 -
797 -__u32 secure_ipv6_id(const __be32 daddr[4])
798 -{
799 - __u32 hash[4];
800 -
801 - net_secret_init();
802 - memcpy(hash, daddr, 16);
803 - md5_transform(hash, net_secret);
804 -
805 - return hash[0];
806 -}
807
808 __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr,
809 __be16 sport, __be16 dport)
810 diff --git a/net/core/skbuff.c b/net/core/skbuff.c
811 index 9f84a5f7404d..6148716884ae 100644
812 --- a/net/core/skbuff.c
813 +++ b/net/core/skbuff.c
814 @@ -2810,7 +2810,6 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
815 tail = nskb;
816
817 __copy_skb_header(nskb, skb);
818 - nskb->mac_len = skb->mac_len;
819
820 /* nskb and skb might have different headroom */
821 if (nskb->ip_summed == CHECKSUM_PARTIAL)
822 @@ -2820,6 +2819,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
823 skb_set_network_header(nskb, skb->mac_len);
824 nskb->transport_header = (nskb->network_header +
825 skb_network_header_len(skb));
826 + skb_reset_mac_len(nskb);
827
828 skb_copy_from_linear_data_offset(skb, -tnl_hlen,
829 nskb->data - tnl_hlen,
830 diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
831 index 38d63ca8a6b5..155adf8729c2 100644
832 --- a/net/ipv4/igmp.c
833 +++ b/net/ipv4/igmp.c
834 @@ -343,7 +343,7 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, int size)
835 pip->saddr = fl4.saddr;
836 pip->protocol = IPPROTO_IGMP;
837 pip->tot_len = 0; /* filled in later */
838 - ip_select_ident(skb, &rt->dst, NULL);
839 + ip_select_ident(skb, NULL);
840 ((u8 *)&pip[1])[0] = IPOPT_RA;
841 ((u8 *)&pip[1])[1] = 4;
842 ((u8 *)&pip[1])[2] = 0;
843 @@ -687,7 +687,7 @@ static int igmp_send_report(struct in_device *in_dev, struct ip_mc_list *pmc,
844 iph->daddr = dst;
845 iph->saddr = fl4.saddr;
846 iph->protocol = IPPROTO_IGMP;
847 - ip_select_ident(skb, &rt->dst, NULL);
848 + ip_select_ident(skb, NULL);
849 ((u8 *)&iph[1])[0] = IPOPT_RA;
850 ((u8 *)&iph[1])[1] = 4;
851 ((u8 *)&iph[1])[2] = 0;
852 diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
853 index 33d5537881ed..67140efc15fd 100644
854 --- a/net/ipv4/inetpeer.c
855 +++ b/net/ipv4/inetpeer.c
856 @@ -26,20 +26,7 @@
857 * Theory of operations.
858 * We keep one entry for each peer IP address. The nodes contains long-living
859 * information about the peer which doesn't depend on routes.
860 - * At this moment this information consists only of ID field for the next
861 - * outgoing IP packet. This field is incremented with each packet as encoded
862 - * in inet_getid() function (include/net/inetpeer.h).
863 - * At the moment of writing this notes identifier of IP packets is generated
864 - * to be unpredictable using this code only for packets subjected
865 - * (actually or potentially) to defragmentation. I.e. DF packets less than
866 - * PMTU in size when local fragmentation is disabled use a constant ID and do
867 - * not use this code (see ip_select_ident() in include/net/ip.h).
868 *
869 - * Route cache entries hold references to our nodes.
870 - * New cache entries get references via lookup by destination IP address in
871 - * the avl tree. The reference is grabbed only when it's needed i.e. only
872 - * when we try to output IP packet which needs an unpredictable ID (see
873 - * __ip_select_ident() in net/ipv4/route.c).
874 * Nodes are removed only when reference counter goes to 0.
875 * When it's happened the node may be removed when a sufficient amount of
876 * time has been passed since its last use. The less-recently-used entry can
877 @@ -62,7 +49,6 @@
878 * refcnt: atomically against modifications on other CPU;
879 * usually under some other lock to prevent node disappearing
880 * daddr: unchangeable
881 - * ip_id_count: atomic value (no lock needed)
882 */
883
884 static struct kmem_cache *peer_cachep __read_mostly;
885 @@ -504,10 +490,6 @@ relookup:
886 p->daddr = *daddr;
887 atomic_set(&p->refcnt, 1);
888 atomic_set(&p->rid, 0);
889 - atomic_set(&p->ip_id_count,
890 - (daddr->family == AF_INET) ?
891 - secure_ip_id(daddr->addr.a4) :
892 - secure_ipv6_id(daddr->addr.a6));
893 p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
894 p->rate_tokens = 0;
895 /* 60*HZ is arbitrary, but chosen enough high so that the first
896 diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
897 index 6ca5873d6175..5afbbbe03b0e 100644
898 --- a/net/ipv4/ip_output.c
899 +++ b/net/ipv4/ip_output.c
900 @@ -148,7 +148,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
901 iph->daddr = (opt && opt->opt.srr ? opt->opt.faddr : daddr);
902 iph->saddr = saddr;
903 iph->protocol = sk->sk_protocol;
904 - ip_select_ident(skb, &rt->dst, sk);
905 + ip_select_ident(skb, sk);
906
907 if (opt && opt->opt.optlen) {
908 iph->ihl += opt->opt.optlen>>2;
909 @@ -394,8 +394,7 @@ packet_routed:
910 ip_options_build(skb, &inet_opt->opt, inet->inet_daddr, rt, 0);
911 }
912
913 - ip_select_ident_more(skb, &rt->dst, sk,
914 - (skb_shinfo(skb)->gso_segs ?: 1) - 1);
915 + ip_select_ident_segs(skb, sk, skb_shinfo(skb)->gso_segs ?: 1);
916
917 skb->priority = sk->sk_priority;
918 skb->mark = sk->sk_mark;
919 @@ -1332,7 +1331,7 @@ struct sk_buff *__ip_make_skb(struct sock *sk,
920 iph->ttl = ttl;
921 iph->protocol = sk->sk_protocol;
922 ip_copy_addrs(iph, fl4);
923 - ip_select_ident(skb, &rt->dst, sk);
924 + ip_select_ident(skb, sk);
925
926 if (opt) {
927 iph->ihl += opt->optlen>>2;
928 diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
929 index 5642374cb751..84aa69caee59 100644
930 --- a/net/ipv4/ip_tunnel.c
931 +++ b/net/ipv4/ip_tunnel.c
932 @@ -691,7 +691,7 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
933 iph->daddr = fl4.daddr;
934 iph->saddr = fl4.saddr;
935 iph->ttl = ttl;
936 - __ip_select_ident(iph, &rt->dst, (skb_shinfo(skb)->gso_segs ?: 1) - 1);
937 + __ip_select_ident(iph, skb_shinfo(skb)->gso_segs ?: 1);
938
939 iptunnel_xmit(skb, dev);
940 return;
941 diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
942 index 49797ed0917c..56d079b63ad3 100644
943 --- a/net/ipv4/ipmr.c
944 +++ b/net/ipv4/ipmr.c
945 @@ -1661,7 +1661,7 @@ static void ip_encap(struct sk_buff *skb, __be32 saddr, __be32 daddr)
946 iph->protocol = IPPROTO_IPIP;
947 iph->ihl = 5;
948 iph->tot_len = htons(skb->len);
949 - ip_select_ident(skb, skb_dst(skb), NULL);
950 + ip_select_ident(skb, NULL);
951 ip_send_check(iph);
952
953 memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
954 diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
955 index 402870fdfa0e..b4a1c42a627f 100644
956 --- a/net/ipv4/raw.c
957 +++ b/net/ipv4/raw.c
958 @@ -387,7 +387,7 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,
959 iph->check = 0;
960 iph->tot_len = htons(length);
961 if (!iph->id)
962 - ip_select_ident(skb, &rt->dst, NULL);
963 + ip_select_ident(skb, NULL);
964
965 iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
966 }
967 diff --git a/net/ipv4/route.c b/net/ipv4/route.c
968 index 2b9887becb5c..d4d162eac4df 100644
969 --- a/net/ipv4/route.c
970 +++ b/net/ipv4/route.c
971 @@ -89,6 +89,7 @@
972 #include <linux/rcupdate.h>
973 #include <linux/times.h>
974 #include <linux/slab.h>
975 +#include <linux/jhash.h>
976 #include <net/dst.h>
977 #include <net/net_namespace.h>
978 #include <net/protocol.h>
979 @@ -464,39 +465,53 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst,
980 return neigh_create(&arp_tbl, pkey, dev);
981 }
982
983 -/*
984 - * Peer allocation may fail only in serious out-of-memory conditions. However
985 - * we still can generate some output.
986 - * Random ID selection looks a bit dangerous because we have no chances to
987 - * select ID being unique in a reasonable period of time.
988 - * But broken packet identifier may be better than no packet at all.
989 +#define IP_IDENTS_SZ 2048u
990 +struct ip_ident_bucket {
991 + atomic_t id;
992 + u32 stamp32;
993 +};
994 +
995 +static struct ip_ident_bucket *ip_idents __read_mostly;
996 +
997 +/* In order to protect privacy, we add a perturbation to identifiers
998 + * if one generator is seldom used. This makes hard for an attacker
999 + * to infer how many packets were sent between two points in time.
1000 */
1001 -static void ip_select_fb_ident(struct iphdr *iph)
1002 +u32 ip_idents_reserve(u32 hash, int segs)
1003 {
1004 - static DEFINE_SPINLOCK(ip_fb_id_lock);
1005 - static u32 ip_fallback_id;
1006 - u32 salt;
1007 + struct ip_ident_bucket *bucket = ip_idents + hash % IP_IDENTS_SZ;
1008 + u32 old = ACCESS_ONCE(bucket->stamp32);
1009 + u32 now = (u32)jiffies;
1010 + u32 delta = 0;
1011 +
1012 + if (old != now && cmpxchg(&bucket->stamp32, old, now) == old) {
1013 + u64 x = prandom_u32();
1014 +
1015 + x *= (now - old);
1016 + delta = (u32)(x >> 32);
1017 + }
1018
1019 - spin_lock_bh(&ip_fb_id_lock);
1020 - salt = secure_ip_id((__force __be32)ip_fallback_id ^ iph->daddr);
1021 - iph->id = htons(salt & 0xFFFF);
1022 - ip_fallback_id = salt;
1023 - spin_unlock_bh(&ip_fb_id_lock);
1024 + return atomic_add_return(segs + delta, &bucket->id) - segs;
1025 }
1026 +EXPORT_SYMBOL(ip_idents_reserve);
1027
1028 -void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more)
1029 +void __ip_select_ident(struct iphdr *iph, int segs)
1030 {
1031 - struct net *net = dev_net(dst->dev);
1032 - struct inet_peer *peer;
1033 + static u32 ip_idents_hashrnd __read_mostly;
1034 + static bool hashrnd_initialized = false;
1035 + u32 hash, id;
1036
1037 - peer = inet_getpeer_v4(net->ipv4.peers, iph->daddr, 1);
1038 - if (peer) {
1039 - iph->id = htons(inet_getid(peer, more));
1040 - inet_putpeer(peer);
1041 - return;
1042 + if (unlikely(!hashrnd_initialized)) {
1043 + hashrnd_initialized = true;
1044 + get_random_bytes(&ip_idents_hashrnd, sizeof(ip_idents_hashrnd));
1045 }
1046
1047 - ip_select_fb_ident(iph);
1048 + hash = jhash_3words((__force u32)iph->daddr,
1049 + (__force u32)iph->saddr,
1050 + iph->protocol,
1051 + ip_idents_hashrnd);
1052 + id = ip_idents_reserve(hash, segs);
1053 + iph->id = htons(id);
1054 }
1055 EXPORT_SYMBOL(__ip_select_ident);
1056
1057 @@ -2656,6 +2671,12 @@ int __init ip_rt_init(void)
1058 {
1059 int rc = 0;
1060
1061 + ip_idents = kmalloc(IP_IDENTS_SZ * sizeof(*ip_idents), GFP_KERNEL);
1062 + if (!ip_idents)
1063 + panic("IP: failed to allocate ip_idents\n");
1064 +
1065 + prandom_bytes(ip_idents, IP_IDENTS_SZ * sizeof(*ip_idents));
1066 +
1067 #ifdef CONFIG_IP_ROUTE_CLASSID
1068 ip_rt_acct = __alloc_percpu(256 * sizeof(struct ip_rt_acct), __alignof__(struct ip_rt_acct));
1069 if (!ip_rt_acct)
1070 diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
1071 index 80fa2bfd7ede..c042e529a11e 100644
1072 --- a/net/ipv4/tcp_vegas.c
1073 +++ b/net/ipv4/tcp_vegas.c
1074 @@ -218,7 +218,8 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
1075 * This is:
1076 * (actual rate in segments) * baseRTT
1077 */
1078 - target_cwnd = tp->snd_cwnd * vegas->baseRTT / rtt;
1079 + target_cwnd = (u64)tp->snd_cwnd * vegas->baseRTT;
1080 + do_div(target_cwnd, rtt);
1081
1082 /* Calculate the difference between the window we had,
1083 * and the window we would like to have. This quantity
1084 diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
1085 index ac43cd747bce..b4d1858be550 100644
1086 --- a/net/ipv4/tcp_veno.c
1087 +++ b/net/ipv4/tcp_veno.c
1088 @@ -144,7 +144,7 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
1089
1090 rtt = veno->minrtt;
1091
1092 - target_cwnd = (tp->snd_cwnd * veno->basertt);
1093 + target_cwnd = (u64)tp->snd_cwnd * veno->basertt;
1094 target_cwnd <<= V_PARAM_SHIFT;
1095 do_div(target_cwnd, rtt);
1096
1097 diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
1098 index b5663c37f089..e3f64831bc36 100644
1099 --- a/net/ipv4/xfrm4_mode_tunnel.c
1100 +++ b/net/ipv4/xfrm4_mode_tunnel.c
1101 @@ -117,12 +117,12 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
1102
1103 top_iph->frag_off = (flags & XFRM_STATE_NOPMTUDISC) ?
1104 0 : (XFRM_MODE_SKB_CB(skb)->frag_off & htons(IP_DF));
1105 - ip_select_ident(skb, dst->child, NULL);
1106
1107 top_iph->ttl = ip4_dst_hoplimit(dst->child);
1108
1109 top_iph->saddr = x->props.saddr.a4;
1110 top_iph->daddr = x->id.daddr.a4;
1111 + ip_select_ident(skb, NULL);
1112
1113 return 0;
1114 }
1115 diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
1116 index ffa8d295c56c..071edcba4158 100644
1117 --- a/net/ipv6/ip6_output.c
1118 +++ b/net/ipv6/ip6_output.c
1119 @@ -540,6 +540,23 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
1120 skb_copy_secmark(to, from);
1121 }
1122
1123 +static void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
1124 +{
1125 + static u32 ip6_idents_hashrnd __read_mostly;
1126 + static bool hashrnd_initialized = false;
1127 + u32 hash, id;
1128 +
1129 + if (unlikely(!hashrnd_initialized)) {
1130 + hashrnd_initialized = true;
1131 + get_random_bytes(&ip6_idents_hashrnd, sizeof(ip6_idents_hashrnd));
1132 + }
1133 + hash = __ipv6_addr_jhash(&rt->rt6i_dst.addr, ip6_idents_hashrnd);
1134 + hash = __ipv6_addr_jhash(&rt->rt6i_src.addr, hash);
1135 +
1136 + id = ip_idents_reserve(hash, 1);
1137 + fhdr->identification = htonl(id);
1138 +}
1139 +
1140 int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
1141 {
1142 struct sk_buff *frag;
1143 diff --git a/net/ipv6/output_core.c b/net/ipv6/output_core.c
1144 index 3d2c81a66d6a..a5d465105b69 100644
1145 --- a/net/ipv6/output_core.c
1146 +++ b/net/ipv6/output_core.c
1147 @@ -6,29 +6,6 @@
1148 #include <net/ipv6.h>
1149 #include <net/ip6_fib.h>
1150
1151 -void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt)
1152 -{
1153 - static atomic_t ipv6_fragmentation_id;
1154 - int ident;
1155 -
1156 -#if IS_ENABLED(CONFIG_IPV6)
1157 - if (rt && !(rt->dst.flags & DST_NOPEER)) {
1158 - struct inet_peer *peer;
1159 - struct net *net;
1160 -
1161 - net = dev_net(rt->dst.dev);
1162 - peer = inet_getpeer_v6(net->ipv6.peers, &rt->rt6i_dst.addr, 1);
1163 - if (peer) {
1164 - fhdr->identification = htonl(inet_getid(peer, 0));
1165 - inet_putpeer(peer);
1166 - return;
1167 - }
1168 - }
1169 -#endif
1170 - ident = atomic_inc_return(&ipv6_fragmentation_id);
1171 - fhdr->identification = htonl(ident);
1172 -}
1173 -EXPORT_SYMBOL(ipv6_select_ident);
1174
1175 int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr)
1176 {
1177 diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
1178 index 540d58921007..8d22460a811b 100644
1179 --- a/net/ipv6/sit.c
1180 +++ b/net/ipv6/sit.c
1181 @@ -919,7 +919,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
1182 iph->ttl = iph6->hop_limit;
1183
1184 skb->ip_summed = CHECKSUM_NONE;
1185 - ip_select_ident(skb, skb_dst(skb), NULL);
1186 + ip_select_ident(skb, NULL);
1187 iptunnel_xmit(skb, dev);
1188 return NETDEV_TX_OK;
1189
1190 diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
1191 index c47444e4cf8c..7f0e1cf2d7e8 100644
1192 --- a/net/netfilter/ipvs/ip_vs_xmit.c
1193 +++ b/net/netfilter/ipvs/ip_vs_xmit.c
1194 @@ -883,7 +883,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
1195 iph->daddr = cp->daddr.ip;
1196 iph->saddr = saddr;
1197 iph->ttl = old_iph->ttl;
1198 - ip_select_ident(skb, &rt->dst, NULL);
1199 + ip_select_ident(skb, NULL);
1200
1201 /* Another hack: avoid icmp_send in ip_fragment */
1202 skb->local_df = 1;
1203 diff --git a/net/sctp/associola.c b/net/sctp/associola.c
1204 index 229b3c3fb6c9..62e86d98bc36 100644
1205 --- a/net/sctp/associola.c
1206 +++ b/net/sctp/associola.c
1207 @@ -1213,6 +1213,7 @@ void sctp_assoc_update(struct sctp_association *asoc,
1208 asoc->c = new->c;
1209 asoc->peer.rwnd = new->peer.rwnd;
1210 asoc->peer.sack_needed = new->peer.sack_needed;
1211 + asoc->peer.auth_capable = new->peer.auth_capable;
1212 asoc->peer.i = new->peer.i;
1213 sctp_tsnmap_init(&asoc->peer.tsn_map, SCTP_TSN_MAP_INITIAL,
1214 asoc->peer.i.initial_tsn, GFP_ATOMIC);
1215 diff --git a/net/sctp/output.c b/net/sctp/output.c
1216 index 0beb2f9c8a7c..b6f5fc3127b9 100644
1217 --- a/net/sctp/output.c
1218 +++ b/net/sctp/output.c
1219 @@ -618,7 +618,7 @@ out:
1220 return err;
1221 no_route:
1222 kfree_skb(nskb);
1223 - IP_INC_STATS_BH(sock_net(asoc->base.sk), IPSTATS_MIB_OUTNOROUTES);
1224 + IP_INC_STATS(sock_net(asoc->base.sk), IPSTATS_MIB_OUTNOROUTES);
1225
1226 /* FIXME: Returning the 'err' will effect all the associations
1227 * associated with a socket, although only one of the paths of the