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Annotation of /trunk/kernel-alx/patches-4.9/0270-4.9.171-all-fixes.patch

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Revision 3347 - (hide annotations) (download)
Tue Jun 18 09:42:01 2019 UTC (4 years, 11 months ago) by niro
File size: 66084 byte(s)
-linux-4.9.171
1 niro 3347 diff --git a/Makefile b/Makefile
2     index 966069dab768..dbdef749e1c8 100644
3     --- a/Makefile
4     +++ b/Makefile
5     @@ -1,6 +1,6 @@
6     VERSION = 4
7     PATCHLEVEL = 9
8     -SUBLEVEL = 170
9     +SUBLEVEL = 171
10     EXTRAVERSION =
11     NAME = Roaring Lionus
12    
13     @@ -655,8 +655,7 @@ KBUILD_CFLAGS += $(call cc-option,-fdata-sections,)
14     endif
15    
16     ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
17     -KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
18     -KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
19     +KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
20     else
21     ifdef CONFIG_PROFILE_ALL_BRANCHES
22     KBUILD_CFLAGS += -O2 $(call cc-disable-warning,maybe-uninitialized,)
23     diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
24     index d7116f5935fb..86a43450f014 100644
25     --- a/arch/arm64/include/asm/futex.h
26     +++ b/arch/arm64/include/asm/futex.h
27     @@ -53,7 +53,7 @@
28     static inline int
29     arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
30     {
31     - int oldval, ret, tmp;
32     + int oldval = 0, ret, tmp;
33    
34     pagefault_disable();
35    
36     diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S
37     index eff2f414e22b..ec234c43b3f4 100644
38     --- a/arch/x86/crypto/poly1305-avx2-x86_64.S
39     +++ b/arch/x86/crypto/poly1305-avx2-x86_64.S
40     @@ -321,6 +321,12 @@ ENTRY(poly1305_4block_avx2)
41     vpaddq t2,t1,t1
42     vmovq t1x,d4
43    
44     + # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
45     + # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
46     + # amount. Careful: we must not assume the carry bits 'd0 >> 26',
47     + # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
48     + # integers. It's true in a single-block implementation, but not here.
49     +
50     # d1 += d0 >> 26
51     mov d0,%rax
52     shr $26,%rax
53     @@ -359,16 +365,16 @@ ENTRY(poly1305_4block_avx2)
54     # h0 += (d4 >> 26) * 5
55     mov d4,%rax
56     shr $26,%rax
57     - lea (%eax,%eax,4),%eax
58     - add %eax,%ebx
59     + lea (%rax,%rax,4),%rax
60     + add %rax,%rbx
61     # h4 = d4 & 0x3ffffff
62     mov d4,%rax
63     and $0x3ffffff,%eax
64     mov %eax,h4
65    
66     # h1 += h0 >> 26
67     - mov %ebx,%eax
68     - shr $26,%eax
69     + mov %rbx,%rax
70     + shr $26,%rax
71     add %eax,h1
72     # h0 = h0 & 0x3ffffff
73     andl $0x3ffffff,%ebx
74     diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S
75     index 338c748054ed..639d9760b089 100644
76     --- a/arch/x86/crypto/poly1305-sse2-x86_64.S
77     +++ b/arch/x86/crypto/poly1305-sse2-x86_64.S
78     @@ -251,16 +251,16 @@ ENTRY(poly1305_block_sse2)
79     # h0 += (d4 >> 26) * 5
80     mov d4,%rax
81     shr $26,%rax
82     - lea (%eax,%eax,4),%eax
83     - add %eax,%ebx
84     + lea (%rax,%rax,4),%rax
85     + add %rax,%rbx
86     # h4 = d4 & 0x3ffffff
87     mov d4,%rax
88     and $0x3ffffff,%eax
89     mov %eax,h4
90    
91     # h1 += h0 >> 26
92     - mov %ebx,%eax
93     - shr $26,%eax
94     + mov %rbx,%rax
95     + shr $26,%rax
96     add %eax,h1
97     # h0 = h0 & 0x3ffffff
98     andl $0x3ffffff,%ebx
99     @@ -518,6 +518,12 @@ ENTRY(poly1305_2block_sse2)
100     paddq t2,t1
101     movq t1,d4
102    
103     + # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
104     + # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
105     + # amount. Careful: we must not assume the carry bits 'd0 >> 26',
106     + # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
107     + # integers. It's true in a single-block implementation, but not here.
108     +
109     # d1 += d0 >> 26
110     mov d0,%rax
111     shr $26,%rax
112     @@ -556,16 +562,16 @@ ENTRY(poly1305_2block_sse2)
113     # h0 += (d4 >> 26) * 5
114     mov d4,%rax
115     shr $26,%rax
116     - lea (%eax,%eax,4),%eax
117     - add %eax,%ebx
118     + lea (%rax,%rax,4),%rax
119     + add %rax,%rbx
120     # h4 = d4 & 0x3ffffff
121     mov d4,%rax
122     and $0x3ffffff,%eax
123     mov %eax,h4
124    
125     # h1 += h0 >> 26
126     - mov %ebx,%eax
127     - shr $26,%eax
128     + mov %rbx,%rax
129     + shr $26,%rax
130     add %eax,h1
131     # h0 = h0 & 0x3ffffff
132     andl $0x3ffffff,%ebx
133     diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
134     index afb222b63cae..de050d5a4506 100644
135     --- a/arch/x86/events/amd/core.c
136     +++ b/arch/x86/events/amd/core.c
137     @@ -113,22 +113,39 @@ static __initconst const u64 amd_hw_cache_event_ids
138     };
139    
140     /*
141     - * AMD Performance Monitor K7 and later.
142     + * AMD Performance Monitor K7 and later, up to and including Family 16h:
143     */
144     static const u64 amd_perfmon_event_map[PERF_COUNT_HW_MAX] =
145     {
146     - [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
147     - [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
148     - [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
149     - [PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
150     - [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
151     - [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
152     - [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */
153     - [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */
154     + [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
155     + [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
156     + [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
157     + [PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
158     + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
159     + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
160     + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */
161     + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */
162     +};
163     +
164     +/*
165     + * AMD Performance Monitor Family 17h and later:
166     + */
167     +static const u64 amd_f17h_perfmon_event_map[PERF_COUNT_HW_MAX] =
168     +{
169     + [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
170     + [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
171     + [PERF_COUNT_HW_CACHE_REFERENCES] = 0xff60,
172     + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
173     + [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
174     + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x0287,
175     + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x0187,
176     };
177    
178     static u64 amd_pmu_event_map(int hw_event)
179     {
180     + if (boot_cpu_data.x86 >= 0x17)
181     + return amd_f17h_perfmon_event_map[hw_event];
182     +
183     return amd_perfmon_event_map[hw_event];
184     }
185    
186     diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
187     index 64a70b2e2285..3f3cfeca1083 100644
188     --- a/arch/x86/kernel/kprobes/core.c
189     +++ b/arch/x86/kernel/kprobes/core.c
190     @@ -545,6 +545,7 @@ void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs)
191     unsigned long *sara = stack_addr(regs);
192    
193     ri->ret_addr = (kprobe_opcode_t *) *sara;
194     + ri->fp = sara;
195    
196     /* Replace the return addr with trampoline addr */
197     *sara = (unsigned long) &kretprobe_trampoline;
198     @@ -746,15 +747,21 @@ __visible __used void *trampoline_handler(struct pt_regs *regs)
199     unsigned long flags, orig_ret_address = 0;
200     unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
201     kprobe_opcode_t *correct_ret_addr = NULL;
202     + void *frame_pointer;
203     + bool skipped = false;
204    
205     INIT_HLIST_HEAD(&empty_rp);
206     kretprobe_hash_lock(current, &head, &flags);
207     /* fixup registers */
208     #ifdef CONFIG_X86_64
209     regs->cs = __KERNEL_CS;
210     + /* On x86-64, we use pt_regs->sp for return address holder. */
211     + frame_pointer = &regs->sp;
212     #else
213     regs->cs = __KERNEL_CS | get_kernel_rpl();
214     regs->gs = 0;
215     + /* On x86-32, we use pt_regs->flags for return address holder. */
216     + frame_pointer = &regs->flags;
217     #endif
218     regs->ip = trampoline_address;
219     regs->orig_ax = ~0UL;
220     @@ -776,8 +783,25 @@ __visible __used void *trampoline_handler(struct pt_regs *regs)
221     if (ri->task != current)
222     /* another task is sharing our hash bucket */
223     continue;
224     + /*
225     + * Return probes must be pushed on this hash list correct
226     + * order (same as return order) so that it can be poped
227     + * correctly. However, if we find it is pushed it incorrect
228     + * order, this means we find a function which should not be
229     + * probed, because the wrong order entry is pushed on the
230     + * path of processing other kretprobe itself.
231     + */
232     + if (ri->fp != frame_pointer) {
233     + if (!skipped)
234     + pr_warn("kretprobe is stacked incorrectly. Trying to fixup.\n");
235     + skipped = true;
236     + continue;
237     + }
238    
239     orig_ret_address = (unsigned long)ri->ret_addr;
240     + if (skipped)
241     + pr_warn("%ps must be blacklisted because of incorrect kretprobe order\n",
242     + ri->rp->kp.addr);
243    
244     if (orig_ret_address != trampoline_address)
245     /*
246     @@ -795,6 +819,8 @@ __visible __used void *trampoline_handler(struct pt_regs *regs)
247     if (ri->task != current)
248     /* another task is sharing our hash bucket */
249     continue;
250     + if (ri->fp != frame_pointer)
251     + continue;
252    
253     orig_ret_address = (unsigned long)ri->ret_addr;
254     if (ri->rp && ri->rp->handler) {
255     diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
256     index 510cfc06701a..b636a1e849fd 100644
257     --- a/arch/x86/kvm/emulate.c
258     +++ b/arch/x86/kvm/emulate.c
259     @@ -2579,15 +2579,13 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
260     * CR0/CR3/CR4/EFER. It's all a bit more complicated if the vCPU
261     * supports long mode.
262     */
263     - cr4 = ctxt->ops->get_cr(ctxt, 4);
264     if (emulator_has_longmode(ctxt)) {
265     struct desc_struct cs_desc;
266    
267     /* Zero CR4.PCIDE before CR0.PG. */
268     - if (cr4 & X86_CR4_PCIDE) {
269     + cr4 = ctxt->ops->get_cr(ctxt, 4);
270     + if (cr4 & X86_CR4_PCIDE)
271     ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PCIDE);
272     - cr4 &= ~X86_CR4_PCIDE;
273     - }
274    
275     /* A 32-bit code segment is required to clear EFER.LMA. */
276     memset(&cs_desc, 0, sizeof(cs_desc));
277     @@ -2601,13 +2599,16 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
278     if (cr0 & X86_CR0_PE)
279     ctxt->ops->set_cr(ctxt, 0, cr0 & ~(X86_CR0_PG | X86_CR0_PE));
280    
281     - /* Now clear CR4.PAE (which must be done before clearing EFER.LME). */
282     - if (cr4 & X86_CR4_PAE)
283     - ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE);
284     + if (emulator_has_longmode(ctxt)) {
285     + /* Clear CR4.PAE before clearing EFER.LME. */
286     + cr4 = ctxt->ops->get_cr(ctxt, 4);
287     + if (cr4 & X86_CR4_PAE)
288     + ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE);
289    
290     - /* And finally go back to 32-bit mode. */
291     - efer = 0;
292     - ctxt->ops->set_msr(ctxt, MSR_EFER, efer);
293     + /* And finally go back to 32-bit mode. */
294     + efer = 0;
295     + ctxt->ops->set_msr(ctxt, MSR_EFER, efer);
296     + }
297    
298     smbase = ctxt->ops->get_smbase(ctxt);
299     if (emulator_has_longmode(ctxt))
300     diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
301     index 01eb0451b96d..9a6d258c3c16 100644
302     --- a/arch/x86/kvm/svm.c
303     +++ b/arch/x86/kvm/svm.c
304     @@ -3940,14 +3940,25 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
305     kvm_lapic_reg_write(apic, APIC_ICR, icrl);
306     break;
307     case AVIC_IPI_FAILURE_TARGET_NOT_RUNNING: {
308     + int i;
309     + struct kvm_vcpu *vcpu;
310     + struct kvm *kvm = svm->vcpu.kvm;
311     struct kvm_lapic *apic = svm->vcpu.arch.apic;
312    
313     /*
314     - * Update ICR high and low, then emulate sending IPI,
315     - * which is handled when writing APIC_ICR.
316     + * At this point, we expect that the AVIC HW has already
317     + * set the appropriate IRR bits on the valid target
318     + * vcpus. So, we just need to kick the appropriate vcpu.
319     */
320     - kvm_lapic_reg_write(apic, APIC_ICR2, icrh);
321     - kvm_lapic_reg_write(apic, APIC_ICR, icrl);
322     + kvm_for_each_vcpu(i, vcpu, kvm) {
323     + bool m = kvm_apic_match_dest(vcpu, apic,
324     + icrl & KVM_APIC_SHORT_MASK,
325     + GET_APIC_DEST_FIELD(icrh),
326     + icrl & KVM_APIC_DEST_MASK);
327     +
328     + if (m && !avic_vcpu_is_running(vcpu))
329     + kvm_vcpu_wake_up(vcpu);
330     + }
331     break;
332     }
333     case AVIC_IPI_FAILURE_INVALID_TARGET:
334     diff --git a/crypto/testmgr.h b/crypto/testmgr.h
335     index 9033088ca231..ebff33765ac3 100644
336     --- a/crypto/testmgr.h
337     +++ b/crypto/testmgr.h
338     @@ -4527,7 +4527,49 @@ static struct hash_testvec poly1305_tv_template[] = {
339     .psize = 80,
340     .digest = "\x13\x00\x00\x00\x00\x00\x00\x00"
341     "\x00\x00\x00\x00\x00\x00\x00\x00",
342     - },
343     + }, { /* Regression test for overflow in AVX2 implementation */
344     + .plaintext = "\xff\xff\xff\xff\xff\xff\xff\xff"
345     + "\xff\xff\xff\xff\xff\xff\xff\xff"
346     + "\xff\xff\xff\xff\xff\xff\xff\xff"
347     + "\xff\xff\xff\xff\xff\xff\xff\xff"
348     + "\xff\xff\xff\xff\xff\xff\xff\xff"
349     + "\xff\xff\xff\xff\xff\xff\xff\xff"
350     + "\xff\xff\xff\xff\xff\xff\xff\xff"
351     + "\xff\xff\xff\xff\xff\xff\xff\xff"
352     + "\xff\xff\xff\xff\xff\xff\xff\xff"
353     + "\xff\xff\xff\xff\xff\xff\xff\xff"
354     + "\xff\xff\xff\xff\xff\xff\xff\xff"
355     + "\xff\xff\xff\xff\xff\xff\xff\xff"
356     + "\xff\xff\xff\xff\xff\xff\xff\xff"
357     + "\xff\xff\xff\xff\xff\xff\xff\xff"
358     + "\xff\xff\xff\xff\xff\xff\xff\xff"
359     + "\xff\xff\xff\xff\xff\xff\xff\xff"
360     + "\xff\xff\xff\xff\xff\xff\xff\xff"
361     + "\xff\xff\xff\xff\xff\xff\xff\xff"
362     + "\xff\xff\xff\xff\xff\xff\xff\xff"
363     + "\xff\xff\xff\xff\xff\xff\xff\xff"
364     + "\xff\xff\xff\xff\xff\xff\xff\xff"
365     + "\xff\xff\xff\xff\xff\xff\xff\xff"
366     + "\xff\xff\xff\xff\xff\xff\xff\xff"
367     + "\xff\xff\xff\xff\xff\xff\xff\xff"
368     + "\xff\xff\xff\xff\xff\xff\xff\xff"
369     + "\xff\xff\xff\xff\xff\xff\xff\xff"
370     + "\xff\xff\xff\xff\xff\xff\xff\xff"
371     + "\xff\xff\xff\xff\xff\xff\xff\xff"
372     + "\xff\xff\xff\xff\xff\xff\xff\xff"
373     + "\xff\xff\xff\xff\xff\xff\xff\xff"
374     + "\xff\xff\xff\xff\xff\xff\xff\xff"
375     + "\xff\xff\xff\xff\xff\xff\xff\xff"
376     + "\xff\xff\xff\xff\xff\xff\xff\xff"
377     + "\xff\xff\xff\xff\xff\xff\xff\xff"
378     + "\xff\xff\xff\xff\xff\xff\xff\xff"
379     + "\xff\xff\xff\xff\xff\xff\xff\xff"
380     + "\xff\xff\xff\xff\xff\xff\xff\xff"
381     + "\xff\xff\xff\xff",
382     + .psize = 300,
383     + .digest = "\xfb\x5e\x96\xd8\x61\xd5\xc7\xc8"
384     + "\x78\xe5\x87\xcc\x2d\x5a\x22\xe1",
385     + }
386     };
387    
388     /*
389     diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c
390     index 95ce2e9ccdc6..cc4e642d3180 100644
391     --- a/drivers/char/tpm/tpm_i2c_atmel.c
392     +++ b/drivers/char/tpm/tpm_i2c_atmel.c
393     @@ -65,7 +65,15 @@ static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
394     dev_dbg(&chip->dev,
395     "%s(buf=%*ph len=%0zx) -> sts=%d\n", __func__,
396     (int)min_t(size_t, 64, len), buf, len, status);
397     - return status;
398     +
399     + if (status < 0)
400     + return status;
401     +
402     + /* The upper layer does not support incomplete sends. */
403     + if (status != len)
404     + return -E2BIG;
405     +
406     + return 0;
407     }
408    
409     static int i2c_atmel_recv(struct tpm_chip *chip, u8 *buf, size_t count)
410     diff --git a/drivers/crypto/amcc/crypto4xx_alg.c b/drivers/crypto/amcc/crypto4xx_alg.c
411     index 4afca3968773..e3b8bebfdd30 100644
412     --- a/drivers/crypto/amcc/crypto4xx_alg.c
413     +++ b/drivers/crypto/amcc/crypto4xx_alg.c
414     @@ -138,7 +138,8 @@ static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher,
415     sa = (struct dynamic_sa_ctl *) ctx->sa_in;
416     ctx->hash_final = 0;
417    
418     - set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, SA_NOT_SAVE_IV,
419     + set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, (cm == CRYPTO_MODE_CBC ?
420     + SA_SAVE_IV : SA_NOT_SAVE_IV),
421     SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE,
422     SA_NO_HEADER_PROC, SA_HASH_ALG_NULL,
423     SA_CIPHER_ALG_AES, SA_PAD_TYPE_ZERO,
424     diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
425     index c7524bbbaf98..7d066fa9f2ad 100644
426     --- a/drivers/crypto/amcc/crypto4xx_core.c
427     +++ b/drivers/crypto/amcc/crypto4xx_core.c
428     @@ -646,6 +646,15 @@ static u32 crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,
429     addr = dma_map_page(dev->core_dev->device, sg_page(dst),
430     dst->offset, dst->length, DMA_FROM_DEVICE);
431     }
432     +
433     + if (pd_uinfo->sa_va->sa_command_0.bf.save_iv == SA_SAVE_IV) {
434     + struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
435     +
436     + crypto4xx_memcpy_from_le32((u32 *)req->iv,
437     + pd_uinfo->sr_va->save_iv,
438     + crypto_skcipher_ivsize(skcipher));
439     + }
440     +
441     crypto4xx_ret_sg_desc(dev, pd_uinfo);
442     if (ablk_req->base.complete != NULL)
443     ablk_req->base.complete(&ablk_req->base, 0);
444     diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
445     index 1d645c9ab417..cac262a912c1 100644
446     --- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
447     +++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
448     @@ -337,7 +337,8 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
449     DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"),
450     },
451     .driver_data = (void *)&sipodev_desc
452     - }
453     + },
454     + { } /* Terminate list */
455     };
456    
457    
458     diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
459     index 784636800361..780f886ccbfe 100644
460     --- a/drivers/iio/accel/kxcjk-1013.c
461     +++ b/drivers/iio/accel/kxcjk-1013.c
462     @@ -1340,6 +1340,8 @@ static int kxcjk1013_resume(struct device *dev)
463    
464     mutex_lock(&data->mutex);
465     ret = kxcjk1013_set_mode(data, OPERATION);
466     + if (ret == 0)
467     + ret = kxcjk1013_set_range(data, data->range);
468     mutex_unlock(&data->mutex);
469    
470     return ret;
471     diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
472     index 22c4c17cd996..a1d072ecb717 100644
473     --- a/drivers/iio/adc/ad_sigma_delta.c
474     +++ b/drivers/iio/adc/ad_sigma_delta.c
475     @@ -121,6 +121,7 @@ static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,
476     if (sigma_delta->info->has_registers) {
477     data[0] = reg << sigma_delta->info->addr_shift;
478     data[0] |= sigma_delta->info->read_mask;
479     + data[0] |= sigma_delta->comm;
480     spi_message_add_tail(&t[0], &m);
481     }
482     spi_message_add_tail(&t[1], &m);
483     diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
484     index e3e2155b0386..dd9f2280927b 100644
485     --- a/drivers/iio/adc/at91_adc.c
486     +++ b/drivers/iio/adc/at91_adc.c
487     @@ -704,23 +704,29 @@ static int at91_adc_read_raw(struct iio_dev *idev,
488     ret = wait_event_interruptible_timeout(st->wq_data_avail,
489     st->done,
490     msecs_to_jiffies(1000));
491     - if (ret == 0)
492     - ret = -ETIMEDOUT;
493     - if (ret < 0) {
494     - mutex_unlock(&st->lock);
495     - return ret;
496     - }
497     -
498     - *val = st->last_value;
499    
500     + /* Disable interrupts, regardless if adc conversion was
501     + * successful or not
502     + */
503     at91_adc_writel(st, AT91_ADC_CHDR,
504     AT91_ADC_CH(chan->channel));
505     at91_adc_writel(st, AT91_ADC_IDR, BIT(chan->channel));
506    
507     - st->last_value = 0;
508     - st->done = false;
509     + if (ret > 0) {
510     + /* a valid conversion took place */
511     + *val = st->last_value;
512     + st->last_value = 0;
513     + st->done = false;
514     + ret = IIO_VAL_INT;
515     + } else if (ret == 0) {
516     + /* conversion timeout */
517     + dev_err(&idev->dev, "ADC Channel %d timeout.\n",
518     + chan->channel);
519     + ret = -ETIMEDOUT;
520     + }
521     +
522     mutex_unlock(&st->lock);
523     - return IIO_VAL_INT;
524     + return ret;
525    
526     case IIO_CHAN_INFO_SCALE:
527     *val = st->vref_mv;
528     diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
529     index 821919dd245b..b5a5517e3ce1 100644
530     --- a/drivers/iio/gyro/bmg160_core.c
531     +++ b/drivers/iio/gyro/bmg160_core.c
532     @@ -583,11 +583,10 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
533     case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
534     return bmg160_get_filter(data, val);
535     case IIO_CHAN_INFO_SCALE:
536     - *val = 0;
537     switch (chan->type) {
538     case IIO_TEMP:
539     - *val2 = 500000;
540     - return IIO_VAL_INT_PLUS_MICRO;
541     + *val = 500;
542     + return IIO_VAL_INT;
543     case IIO_ANGL_VEL:
544     {
545     int i;
546     @@ -595,6 +594,7 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
547     for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
548     if (bmg160_scale_table[i].dps_range ==
549     data->dps_range) {
550     + *val = 0;
551     *val2 = bmg160_scale_table[i].scale;
552     return IIO_VAL_INT_PLUS_MICRO;
553     }
554     diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
555     index 6bf58d27b6fc..df306caba296 100644
556     --- a/drivers/mmc/host/sdhci.c
557     +++ b/drivers/mmc/host/sdhci.c
558     @@ -944,8 +944,7 @@ static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq)
559     return (!(host->flags & SDHCI_DEVICE_DEAD) &&
560     ((mrq->cmd && mrq->cmd->error) ||
561     (mrq->sbc && mrq->sbc->error) ||
562     - (mrq->data && ((mrq->data->error && !mrq->data->stop) ||
563     - (mrq->data->stop && mrq->data->stop->error))) ||
564     + (mrq->data && mrq->data->stop && mrq->data->stop->error) ||
565     (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST)));
566     }
567    
568     @@ -997,6 +996,16 @@ static void sdhci_finish_data(struct sdhci_host *host)
569     host->data = NULL;
570     host->data_cmd = NULL;
571    
572     + /*
573     + * The controller needs a reset of internal state machines upon error
574     + * conditions.
575     + */
576     + if (data->error) {
577     + if (!host->cmd || host->cmd == data_cmd)
578     + sdhci_do_reset(host, SDHCI_RESET_CMD);
579     + sdhci_do_reset(host, SDHCI_RESET_DATA);
580     + }
581     +
582     if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) ==
583     (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA))
584     sdhci_adma_table_post(host, data);
585     @@ -1021,17 +1030,6 @@ static void sdhci_finish_data(struct sdhci_host *host)
586     if (data->stop &&
587     (data->error ||
588     !data->mrq->sbc)) {
589     -
590     - /*
591     - * The controller needs a reset of internal state machines
592     - * upon error conditions.
593     - */
594     - if (data->error) {
595     - if (!host->cmd || host->cmd == data_cmd)
596     - sdhci_do_reset(host, SDHCI_RESET_CMD);
597     - sdhci_do_reset(host, SDHCI_RESET_DATA);
598     - }
599     -
600     /*
601     * 'cap_cmd_during_tfr' request must not use the command line
602     * after mmc_command_done() has been called. It is upper layer's
603     @@ -2457,7 +2455,7 @@ static void sdhci_timeout_data_timer(unsigned long data)
604     * *
605     \*****************************************************************************/
606    
607     -static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
608     +static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p)
609     {
610     if (!host->cmd) {
611     /*
612     @@ -2480,20 +2478,12 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
613     else
614     host->cmd->error = -EILSEQ;
615    
616     - /*
617     - * If this command initiates a data phase and a response
618     - * CRC error is signalled, the card can start transferring
619     - * data - the card may have received the command without
620     - * error. We must not terminate the mmc_request early.
621     - *
622     - * If the card did not receive the command or returned an
623     - * error which prevented it sending data, the data phase
624     - * will time out.
625     - */
626     + /* Treat data command CRC error the same as data CRC error */
627     if (host->cmd->data &&
628     (intmask & (SDHCI_INT_CRC | SDHCI_INT_TIMEOUT)) ==
629     SDHCI_INT_CRC) {
630     host->cmd = NULL;
631     + *intmask_p |= SDHCI_INT_DATA_CRC;
632     return;
633     }
634    
635     @@ -2722,7 +2712,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
636     }
637    
638     if (intmask & SDHCI_INT_CMD_MASK)
639     - sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
640     + sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask);
641    
642     if (intmask & SDHCI_INT_DATA_MASK)
643     sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
644     diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
645     index 24a3433f3944..93169729dfc9 100644
646     --- a/drivers/net/bonding/bond_main.c
647     +++ b/drivers/net/bonding/bond_main.c
648     @@ -3134,8 +3134,12 @@ static int bond_netdev_event(struct notifier_block *this,
649     return NOTIFY_DONE;
650    
651     if (event_dev->flags & IFF_MASTER) {
652     + int ret;
653     +
654     netdev_dbg(event_dev, "IFF_MASTER\n");
655     - return bond_master_netdev_event(event, event_dev);
656     + ret = bond_master_netdev_event(event, event_dev);
657     + if (ret != NOTIFY_DONE)
658     + return ret;
659     }
660    
661     if (event_dev->flags & IFF_SLAVE) {
662     diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
663     index 375b6810bf46..b8874faaa813 100644
664     --- a/drivers/net/team/team.c
665     +++ b/drivers/net/team/team.c
666     @@ -1251,6 +1251,23 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
667     goto err_option_port_add;
668     }
669    
670     + /* set promiscuity level to new slave */
671     + if (dev->flags & IFF_PROMISC) {
672     + err = dev_set_promiscuity(port_dev, 1);
673     + if (err)
674     + goto err_set_slave_promisc;
675     + }
676     +
677     + /* set allmulti level to new slave */
678     + if (dev->flags & IFF_ALLMULTI) {
679     + err = dev_set_allmulti(port_dev, 1);
680     + if (err) {
681     + if (dev->flags & IFF_PROMISC)
682     + dev_set_promiscuity(port_dev, -1);
683     + goto err_set_slave_promisc;
684     + }
685     + }
686     +
687     netif_addr_lock_bh(dev);
688     dev_uc_sync_multiple(port_dev, dev);
689     dev_mc_sync_multiple(port_dev, dev);
690     @@ -1267,6 +1284,9 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
691    
692     return 0;
693    
694     +err_set_slave_promisc:
695     + __team_option_inst_del_port(team, port);
696     +
697     err_option_port_add:
698     team_upper_dev_unlink(team, port);
699    
700     @@ -1312,6 +1332,12 @@ static int team_port_del(struct team *team, struct net_device *port_dev)
701    
702     team_port_disable(team, port);
703     list_del_rcu(&port->list);
704     +
705     + if (dev->flags & IFF_PROMISC)
706     + dev_set_promiscuity(port_dev, -1);
707     + if (dev->flags & IFF_ALLMULTI)
708     + dev_set_allmulti(port_dev, -1);
709     +
710     team_upper_dev_unlink(team, port);
711     netdev_rx_handler_unregister(port_dev);
712     team_port_disable_netpoll(port);
713     diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
714     index f68d492129c6..822833a52dd3 100644
715     --- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
716     +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
717     @@ -669,7 +669,6 @@ enum rt2x00_state_flags {
718     CONFIG_CHANNEL_HT40,
719     CONFIG_POWERSAVING,
720     CONFIG_HT_DISABLED,
721     - CONFIG_QOS_DISABLED,
722     CONFIG_MONITORING,
723    
724     /*
725     diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
726     index 987c7c4f43cd..55036ce5465c 100644
727     --- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
728     +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
729     @@ -666,18 +666,8 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
730     rt2x00dev->intf_associated--;
731    
732     rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated);
733     -
734     - clear_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
735     }
736    
737     - /*
738     - * Check for access point which do not support 802.11e . We have to
739     - * generate data frames sequence number in S/W for such AP, because
740     - * of H/W bug.
741     - */
742     - if (changes & BSS_CHANGED_QOS && !bss_conf->qos)
743     - set_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
744     -
745     /*
746     * When the erp information has changed, we should perform
747     * additional configuration steps. For all other changes we are done.
748     diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
749     index 68b620b2462f..9a15a69b96a6 100644
750     --- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
751     +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
752     @@ -201,15 +201,18 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
753     if (!rt2x00_has_cap_flag(rt2x00dev, REQUIRE_SW_SEQNO)) {
754     /*
755     * rt2800 has a H/W (or F/W) bug, device incorrectly increase
756     - * seqno on retransmited data (non-QOS) frames. To workaround
757     - * the problem let's generate seqno in software if QOS is
758     - * disabled.
759     + * seqno on retransmitted data (non-QOS) and management frames.
760     + * To workaround the problem let's generate seqno in software.
761     + * Except for beacons which are transmitted periodically by H/W
762     + * hence hardware has to assign seqno for them.
763     */
764     - if (test_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags))
765     - __clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
766     - else
767     + if (ieee80211_is_beacon(hdr->frame_control)) {
768     + __set_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
769     /* H/W will generate sequence number */
770     return;
771     + }
772     +
773     + __clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
774     }
775    
776     /*
777     diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
778     index e3ffd244603e..97aeaddd600d 100644
779     --- a/drivers/scsi/libfc/fc_rport.c
780     +++ b/drivers/scsi/libfc/fc_rport.c
781     @@ -1935,7 +1935,6 @@ static void fc_rport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp)
782     FC_RPORT_DBG(rdata, "Received LOGO request while in state %s\n",
783     fc_rport_state(rdata));
784    
785     - rdata->flags &= ~FC_RP_STARTED;
786     fc_rport_enter_delete(rdata, RPORT_EV_STOP);
787     mutex_unlock(&rdata->rp_mutex);
788     kref_put(&rdata->kref, rdata->local_port->tt.rport_destroy);
789     diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c
790     index 5036eebb9162..2f174a34d9e9 100644
791     --- a/drivers/staging/comedi/drivers/ni_usb6501.c
792     +++ b/drivers/staging/comedi/drivers/ni_usb6501.c
793     @@ -472,10 +472,8 @@ static int ni6501_alloc_usb_buffers(struct comedi_device *dev)
794    
795     size = usb_endpoint_maxp(devpriv->ep_tx);
796     devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
797     - if (!devpriv->usb_tx_buf) {
798     - kfree(devpriv->usb_rx_buf);
799     + if (!devpriv->usb_tx_buf)
800     return -ENOMEM;
801     - }
802    
803     return 0;
804     }
805     @@ -527,6 +525,9 @@ static int ni6501_auto_attach(struct comedi_device *dev,
806     if (!devpriv)
807     return -ENOMEM;
808    
809     + mutex_init(&devpriv->mut);
810     + usb_set_intfdata(intf, devpriv);
811     +
812     ret = ni6501_find_endpoints(dev);
813     if (ret)
814     return ret;
815     @@ -535,9 +536,6 @@ static int ni6501_auto_attach(struct comedi_device *dev,
816     if (ret)
817     return ret;
818    
819     - mutex_init(&devpriv->mut);
820     - usb_set_intfdata(intf, devpriv);
821     -
822     ret = comedi_alloc_subdevices(dev, 2);
823     if (ret)
824     return ret;
825     diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
826     index a004aed0147a..1800eb3ae017 100644
827     --- a/drivers/staging/comedi/drivers/vmk80xx.c
828     +++ b/drivers/staging/comedi/drivers/vmk80xx.c
829     @@ -691,10 +691,8 @@ static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev)
830    
831     size = usb_endpoint_maxp(devpriv->ep_tx);
832     devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
833     - if (!devpriv->usb_tx_buf) {
834     - kfree(devpriv->usb_rx_buf);
835     + if (!devpriv->usb_tx_buf)
836     return -ENOMEM;
837     - }
838    
839     return 0;
840     }
841     @@ -809,6 +807,8 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,
842    
843     devpriv->model = board->model;
844    
845     + sema_init(&devpriv->limit_sem, 8);
846     +
847     ret = vmk80xx_find_usb_endpoints(dev);
848     if (ret)
849     return ret;
850     @@ -817,8 +817,6 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,
851     if (ret)
852     return ret;
853    
854     - sema_init(&devpriv->limit_sem, 8);
855     -
856     usb_set_intfdata(intf, devpriv);
857    
858     if (devpriv->model == VMK8055_MODEL)
859     diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
860     index 4dc9ca3a11b4..b82a4ab77860 100644
861     --- a/drivers/staging/iio/adc/ad7192.c
862     +++ b/drivers/staging/iio/adc/ad7192.c
863     @@ -109,10 +109,10 @@
864     #define AD7192_CH_AIN3 BIT(6) /* AIN3 - AINCOM */
865     #define AD7192_CH_AIN4 BIT(7) /* AIN4 - AINCOM */
866    
867     -#define AD7193_CH_AIN1P_AIN2M 0x000 /* AIN1(+) - AIN2(-) */
868     -#define AD7193_CH_AIN3P_AIN4M 0x001 /* AIN3(+) - AIN4(-) */
869     -#define AD7193_CH_AIN5P_AIN6M 0x002 /* AIN5(+) - AIN6(-) */
870     -#define AD7193_CH_AIN7P_AIN8M 0x004 /* AIN7(+) - AIN8(-) */
871     +#define AD7193_CH_AIN1P_AIN2M 0x001 /* AIN1(+) - AIN2(-) */
872     +#define AD7193_CH_AIN3P_AIN4M 0x002 /* AIN3(+) - AIN4(-) */
873     +#define AD7193_CH_AIN5P_AIN6M 0x004 /* AIN5(+) - AIN6(-) */
874     +#define AD7193_CH_AIN7P_AIN8M 0x008 /* AIN7(+) - AIN8(-) */
875     #define AD7193_CH_TEMP 0x100 /* Temp senseor */
876     #define AD7193_CH_AIN2P_AIN2M 0x200 /* AIN2(+) - AIN2(-) */
877     #define AD7193_CH_AIN1 0x401 /* AIN1 - AINCOM */
878     diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
879     index 2383caf88b67..a54dbfe664cd 100644
880     --- a/drivers/vhost/vhost.c
881     +++ b/drivers/vhost/vhost.c
882     @@ -863,8 +863,12 @@ static int vhost_new_umem_range(struct vhost_umem *umem,
883     u64 start, u64 size, u64 end,
884     u64 userspace_addr, int perm)
885     {
886     - struct vhost_umem_node *tmp, *node = kmalloc(sizeof(*node), GFP_ATOMIC);
887     + struct vhost_umem_node *tmp, *node;
888    
889     + if (!size)
890     + return -EFAULT;
891     +
892     + node = kmalloc(sizeof(*node), GFP_ATOMIC);
893     if (!node)
894     return -ENOMEM;
895    
896     diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
897     index 4ed4736b5bc6..5367b684c1f7 100644
898     --- a/fs/cifs/cifsglob.h
899     +++ b/fs/cifs/cifsglob.h
900     @@ -1157,6 +1157,7 @@ cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file)
901     }
902    
903     struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file);
904     +void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_hdlr);
905     void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
906    
907     #define CIFS_CACHE_READ_FLG 1
908     @@ -1651,6 +1652,7 @@ GLOBAL_EXTERN spinlock_t gidsidlock;
909     #endif /* CONFIG_CIFS_ACL */
910    
911     void cifs_oplock_break(struct work_struct *work);
912     +void cifs_queue_oplock_break(struct cifsFileInfo *cfile);
913    
914     extern const struct slow_work_ops cifs_oplock_break_ops;
915     extern struct workqueue_struct *cifsiod_wq;
916     diff --git a/fs/cifs/file.c b/fs/cifs/file.c
917     index 7d295bf283ca..e7f1773b25d6 100644
918     --- a/fs/cifs/file.c
919     +++ b/fs/cifs/file.c
920     @@ -358,12 +358,30 @@ cifsFileInfo_get(struct cifsFileInfo *cifs_file)
921     return cifs_file;
922     }
923    
924     -/*
925     - * Release a reference on the file private data. This may involve closing
926     - * the filehandle out on the server. Must be called without holding
927     - * tcon->open_file_lock and cifs_file->file_info_lock.
928     +/**
929     + * cifsFileInfo_put - release a reference of file priv data
930     + *
931     + * Always potentially wait for oplock handler. See _cifsFileInfo_put().
932     */
933     void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
934     +{
935     + _cifsFileInfo_put(cifs_file, true);
936     +}
937     +
938     +/**
939     + * _cifsFileInfo_put - release a reference of file priv data
940     + *
941     + * This may involve closing the filehandle @cifs_file out on the
942     + * server. Must be called without holding tcon->open_file_lock and
943     + * cifs_file->file_info_lock.
944     + *
945     + * If @wait_for_oplock_handler is true and we are releasing the last
946     + * reference, wait for any running oplock break handler of the file
947     + * and cancel any pending one. If calling this function from the
948     + * oplock break handler, you need to pass false.
949     + *
950     + */
951     +void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_handler)
952     {
953     struct inode *inode = d_inode(cifs_file->dentry);
954     struct cifs_tcon *tcon = tlink_tcon(cifs_file->tlink);
955     @@ -411,7 +429,8 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
956    
957     spin_unlock(&tcon->open_file_lock);
958    
959     - oplock_break_cancelled = cancel_work_sync(&cifs_file->oplock_break);
960     + oplock_break_cancelled = wait_oplock_handler ?
961     + cancel_work_sync(&cifs_file->oplock_break) : false;
962    
963     if (!tcon->need_reconnect && !cifs_file->invalidHandle) {
964     struct TCP_Server_Info *server = tcon->ses->server;
965     @@ -3913,6 +3932,7 @@ void cifs_oplock_break(struct work_struct *work)
966     cinode);
967     cifs_dbg(FYI, "Oplock release rc = %d\n", rc);
968     }
969     + _cifsFileInfo_put(cfile, false /* do not wait for ourself */);
970     cifs_done_oplock_break(cinode);
971     }
972    
973     diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
974     index 50559a80acf8..5e75df69062d 100644
975     --- a/fs/cifs/misc.c
976     +++ b/fs/cifs/misc.c
977     @@ -494,8 +494,7 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
978     CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
979     &pCifsInode->flags);
980    
981     - queue_work(cifsoplockd_wq,
982     - &netfile->oplock_break);
983     + cifs_queue_oplock_break(netfile);
984     netfile->oplock_break_cancelled = false;
985    
986     spin_unlock(&tcon->open_file_lock);
987     @@ -592,6 +591,28 @@ void cifs_put_writer(struct cifsInodeInfo *cinode)
988     spin_unlock(&cinode->writers_lock);
989     }
990    
991     +/**
992     + * cifs_queue_oplock_break - queue the oplock break handler for cfile
993     + *
994     + * This function is called from the demultiplex thread when it
995     + * receives an oplock break for @cfile.
996     + *
997     + * Assumes the tcon->open_file_lock is held.
998     + * Assumes cfile->file_info_lock is NOT held.
999     + */
1000     +void cifs_queue_oplock_break(struct cifsFileInfo *cfile)
1001     +{
1002     + /*
1003     + * Bump the handle refcount now while we hold the
1004     + * open_file_lock to enforce the validity of it for the oplock
1005     + * break handler. The matching put is done at the end of the
1006     + * handler.
1007     + */
1008     + cifsFileInfo_get(cfile);
1009     +
1010     + queue_work(cifsoplockd_wq, &cfile->oplock_break);
1011     +}
1012     +
1013     void cifs_done_oplock_break(struct cifsInodeInfo *cinode)
1014     {
1015     clear_bit(CIFS_INODE_PENDING_OPLOCK_BREAK, &cinode->flags);
1016     diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
1017     index 244d27bb8fba..9994d15a32fc 100644
1018     --- a/fs/cifs/smb2misc.c
1019     +++ b/fs/cifs/smb2misc.c
1020     @@ -512,7 +512,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
1021     clear_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
1022     &cinode->flags);
1023    
1024     - queue_work(cifsoplockd_wq, &cfile->oplock_break);
1025     + cifs_queue_oplock_break(cfile);
1026     kfree(lw);
1027     return true;
1028     }
1029     @@ -656,8 +656,8 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
1030     CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
1031     &cinode->flags);
1032     spin_unlock(&cfile->file_info_lock);
1033     - queue_work(cifsoplockd_wq,
1034     - &cfile->oplock_break);
1035     +
1036     + cifs_queue_oplock_break(cfile);
1037    
1038     spin_unlock(&tcon->open_file_lock);
1039     spin_unlock(&cifs_tcp_ses_lock);
1040     diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
1041     index e23392517db9..cb527c78de9f 100644
1042     --- a/include/linux/kprobes.h
1043     +++ b/include/linux/kprobes.h
1044     @@ -197,6 +197,7 @@ struct kretprobe_instance {
1045     struct kretprobe *rp;
1046     kprobe_opcode_t *ret_addr;
1047     struct task_struct *task;
1048     + void *fp;
1049     char data[0];
1050     };
1051    
1052     diff --git a/kernel/kprobes.c b/kernel/kprobes.c
1053     index f580352cc6e5..e2845dd53b30 100644
1054     --- a/kernel/kprobes.c
1055     +++ b/kernel/kprobes.c
1056     @@ -668,7 +668,6 @@ static void unoptimize_kprobe(struct kprobe *p, bool force)
1057     static int reuse_unused_kprobe(struct kprobe *ap)
1058     {
1059     struct optimized_kprobe *op;
1060     - int ret;
1061    
1062     BUG_ON(!kprobe_unused(ap));
1063     /*
1064     @@ -682,9 +681,8 @@ static int reuse_unused_kprobe(struct kprobe *ap)
1065     /* Enable the probe again */
1066     ap->flags &= ~KPROBE_FLAG_DISABLED;
1067     /* Optimize it again (remove from op->list) */
1068     - ret = kprobe_optready(ap);
1069     - if (ret)
1070     - return ret;
1071     + if (!kprobe_optready(ap))
1072     + return -EINVAL;
1073    
1074     optimize_kprobe(ap);
1075     return 0;
1076     diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
1077     index d5b779d7e79f..26fc428476b9 100644
1078     --- a/kernel/locking/lockdep.c
1079     +++ b/kernel/locking/lockdep.c
1080     @@ -3446,9 +3446,6 @@ __lock_set_class(struct lockdep_map *lock, const char *name,
1081     unsigned int depth;
1082     int i;
1083    
1084     - if (unlikely(!debug_locks))
1085     - return 0;
1086     -
1087     depth = curr->lockdep_depth;
1088     /*
1089     * This function is about (re)setting the class of a held lock,
1090     diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
1091     index 1c630d94f86b..4b1e0669740c 100644
1092     --- a/kernel/sched/fair.c
1093     +++ b/kernel/sched/fair.c
1094     @@ -4347,12 +4347,15 @@ static enum hrtimer_restart sched_cfs_slack_timer(struct hrtimer *timer)
1095     return HRTIMER_NORESTART;
1096     }
1097    
1098     +extern const u64 max_cfs_quota_period;
1099     +
1100     static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
1101     {
1102     struct cfs_bandwidth *cfs_b =
1103     container_of(timer, struct cfs_bandwidth, period_timer);
1104     int overrun;
1105     int idle = 0;
1106     + int count = 0;
1107    
1108     raw_spin_lock(&cfs_b->lock);
1109     for (;;) {
1110     @@ -4360,6 +4363,28 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
1111     if (!overrun)
1112     break;
1113    
1114     + if (++count > 3) {
1115     + u64 new, old = ktime_to_ns(cfs_b->period);
1116     +
1117     + new = (old * 147) / 128; /* ~115% */
1118     + new = min(new, max_cfs_quota_period);
1119     +
1120     + cfs_b->period = ns_to_ktime(new);
1121     +
1122     + /* since max is 1s, this is limited to 1e9^2, which fits in u64 */
1123     + cfs_b->quota *= new;
1124     + cfs_b->quota = div64_u64(cfs_b->quota, old);
1125     +
1126     + pr_warn_ratelimited(
1127     + "cfs_period_timer[cpu%d]: period too short, scaling up (new cfs_period_us %lld, cfs_quota_us = %lld)\n",
1128     + smp_processor_id(),
1129     + div_u64(new, NSEC_PER_USEC),
1130     + div_u64(cfs_b->quota, NSEC_PER_USEC));
1131     +
1132     + /* reset count so we don't come right back in here */
1133     + count = 0;
1134     + }
1135     +
1136     idle = do_sched_cfs_period_timer(cfs_b, overrun);
1137     }
1138     if (idle)
1139     diff --git a/kernel/sysctl.c b/kernel/sysctl.c
1140     index 5515d578095b..cf0aeaae567e 100644
1141     --- a/kernel/sysctl.c
1142     +++ b/kernel/sysctl.c
1143     @@ -124,6 +124,7 @@ static int zero;
1144     static int __maybe_unused one = 1;
1145     static int __maybe_unused two = 2;
1146     static int __maybe_unused four = 4;
1147     +static unsigned long zero_ul;
1148     static unsigned long one_ul = 1;
1149     static unsigned long long_max = LONG_MAX;
1150     static int one_hundred = 100;
1151     @@ -1683,7 +1684,7 @@ static struct ctl_table fs_table[] = {
1152     .maxlen = sizeof(files_stat.max_files),
1153     .mode = 0644,
1154     .proc_handler = proc_doulongvec_minmax,
1155     - .extra1 = &zero,
1156     + .extra1 = &zero_ul,
1157     .extra2 = &long_max,
1158     },
1159     {
1160     diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
1161     index 8f4227d4cd39..0043aef0ed8d 100644
1162     --- a/kernel/trace/ftrace.c
1163     +++ b/kernel/trace/ftrace.c
1164     @@ -32,6 +32,7 @@
1165     #include <linux/list.h>
1166     #include <linux/hash.h>
1167     #include <linux/rcupdate.h>
1168     +#include <linux/kprobes.h>
1169    
1170     #include <trace/events/sched.h>
1171    
1172     @@ -5246,7 +5247,7 @@ void ftrace_reset_array_ops(struct trace_array *tr)
1173     tr->ops->func = ftrace_stub;
1174     }
1175    
1176     -static inline void
1177     +static nokprobe_inline void
1178     __ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
1179     struct ftrace_ops *ignored, struct pt_regs *regs)
1180     {
1181     @@ -5309,11 +5310,13 @@ static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
1182     {
1183     __ftrace_ops_list_func(ip, parent_ip, NULL, regs);
1184     }
1185     +NOKPROBE_SYMBOL(ftrace_ops_list_func);
1186     #else
1187     static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip)
1188     {
1189     __ftrace_ops_list_func(ip, parent_ip, NULL, NULL);
1190     }
1191     +NOKPROBE_SYMBOL(ftrace_ops_no_ops);
1192     #endif
1193    
1194     /*
1195     @@ -5343,6 +5346,7 @@ static void ftrace_ops_assist_func(unsigned long ip, unsigned long parent_ip,
1196     preempt_enable_notrace();
1197     trace_clear_recursion(bit);
1198     }
1199     +NOKPROBE_SYMBOL(ftrace_ops_assist_func);
1200    
1201     /**
1202     * ftrace_ops_get_func - get the function a trampoline should call
1203     diff --git a/mm/percpu.c b/mm/percpu.c
1204     index 3794cfc88689..0462a2a00f05 100644
1205     --- a/mm/percpu.c
1206     +++ b/mm/percpu.c
1207     @@ -2048,8 +2048,8 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
1208     ai->groups[group].base_offset = areas[group] - base;
1209     }
1210    
1211     - pr_info("Embedded %zu pages/cpu @%p s%zu r%zu d%zu u%zu\n",
1212     - PFN_DOWN(size_sum), base, ai->static_size, ai->reserved_size,
1213     + pr_info("Embedded %zu pages/cpu s%zu r%zu d%zu u%zu\n",
1214     + PFN_DOWN(size_sum), ai->static_size, ai->reserved_size,
1215     ai->dyn_size, ai->unit_size);
1216    
1217     rc = pcpu_setup_first_chunk(ai, base);
1218     @@ -2162,8 +2162,8 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
1219     }
1220    
1221     /* we're ready, commit */
1222     - pr_info("%d %s pages/cpu @%p s%zu r%zu d%zu\n",
1223     - unit_pages, psize_str, vm.addr, ai->static_size,
1224     + pr_info("%d %s pages/cpu s%zu r%zu d%zu\n",
1225     + unit_pages, psize_str, ai->static_size,
1226     ai->reserved_size, ai->dyn_size);
1227    
1228     rc = pcpu_setup_first_chunk(ai, vm.addr);
1229     diff --git a/mm/vmstat.c b/mm/vmstat.c
1230     index 5e6a4d76659d..9af8d369e112 100644
1231     --- a/mm/vmstat.c
1232     +++ b/mm/vmstat.c
1233     @@ -1075,13 +1075,8 @@ const char * const vmstat_text[] = {
1234     #endif
1235     #endif /* CONFIG_MEMORY_BALLOON */
1236     #ifdef CONFIG_DEBUG_TLBFLUSH
1237     -#ifdef CONFIG_SMP
1238     "nr_tlb_remote_flush",
1239     "nr_tlb_remote_flush_received",
1240     -#else
1241     - "", /* nr_tlb_remote_flush */
1242     - "", /* nr_tlb_remote_flush_received */
1243     -#endif /* CONFIG_SMP */
1244     "nr_tlb_local_flush_all",
1245     "nr_tlb_local_flush_one",
1246     #endif /* CONFIG_DEBUG_TLBFLUSH */
1247     diff --git a/net/atm/lec.c b/net/atm/lec.c
1248     index 1e84c5226c84..704892d79bf1 100644
1249     --- a/net/atm/lec.c
1250     +++ b/net/atm/lec.c
1251     @@ -721,7 +721,10 @@ static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)
1252    
1253     static int lec_mcast_attach(struct atm_vcc *vcc, int arg)
1254     {
1255     - if (arg < 0 || arg >= MAX_LEC_ITF || !dev_lec[arg])
1256     + if (arg < 0 || arg >= MAX_LEC_ITF)
1257     + return -EINVAL;
1258     + arg = array_index_nospec(arg, MAX_LEC_ITF);
1259     + if (!dev_lec[arg])
1260     return -EINVAL;
1261     vcc->proto_data = dev_lec[arg];
1262     return lec_mcast_make(netdev_priv(dev_lec[arg]), vcc);
1263     @@ -739,6 +742,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
1264     i = arg;
1265     if (arg >= MAX_LEC_ITF)
1266     return -EINVAL;
1267     + i = array_index_nospec(arg, MAX_LEC_ITF);
1268     if (!dev_lec[i]) {
1269     int size;
1270    
1271     diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
1272     index 267b46af407f..c615dff40ab4 100644
1273     --- a/net/bridge/br_input.c
1274     +++ b/net/bridge/br_input.c
1275     @@ -231,13 +231,10 @@ static void __br_handle_local_finish(struct sk_buff *skb)
1276     /* note: already called with rcu_read_lock */
1277     static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
1278     {
1279     - struct net_bridge_port *p = br_port_get_rcu(skb->dev);
1280     -
1281     __br_handle_local_finish(skb);
1282    
1283     - BR_INPUT_SKB_CB(skb)->brdev = p->br->dev;
1284     - br_pass_frame_up(skb);
1285     - return 0;
1286     + /* return 1 to signal the okfn() was called so it's ok to use the skb */
1287     + return 1;
1288     }
1289    
1290     /*
1291     @@ -308,10 +305,18 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
1292     goto forward;
1293     }
1294    
1295     - /* Deliver packet to local host only */
1296     - NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, dev_net(skb->dev),
1297     - NULL, skb, skb->dev, NULL, br_handle_local_finish);
1298     - return RX_HANDLER_CONSUMED;
1299     + /* The else clause should be hit when nf_hook():
1300     + * - returns < 0 (drop/error)
1301     + * - returns = 0 (stolen/nf_queue)
1302     + * Thus return 1 from the okfn() to signal the skb is ok to pass
1303     + */
1304     + if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN,
1305     + dev_net(skb->dev), NULL, skb, skb->dev, NULL,
1306     + br_handle_local_finish) == 1) {
1307     + return RX_HANDLER_PASS;
1308     + } else {
1309     + return RX_HANDLER_CONSUMED;
1310     + }
1311     }
1312    
1313     forward:
1314     diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
1315     index 2136e45f5277..964ffff90432 100644
1316     --- a/net/bridge/br_multicast.c
1317     +++ b/net/bridge/br_multicast.c
1318     @@ -1983,7 +1983,8 @@ static void br_multicast_start_querier(struct net_bridge *br,
1319    
1320     __br_multicast_open(br, query);
1321    
1322     - list_for_each_entry(port, &br->port_list, list) {
1323     + rcu_read_lock();
1324     + list_for_each_entry_rcu(port, &br->port_list, list) {
1325     if (port->state == BR_STATE_DISABLED ||
1326     port->state == BR_STATE_BLOCKING)
1327     continue;
1328     @@ -1995,6 +1996,7 @@ static void br_multicast_start_querier(struct net_bridge *br,
1329     br_multicast_enable(&port->ip6_own_query);
1330     #endif
1331     }
1332     + rcu_read_unlock();
1333     }
1334    
1335     int br_multicast_toggle(struct net_bridge *br, unsigned long val)
1336     diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
1337     index 030d1531e897..17acc89f9dec 100644
1338     --- a/net/ipv4/fou.c
1339     +++ b/net/ipv4/fou.c
1340     @@ -119,6 +119,7 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
1341     struct guehdr *guehdr;
1342     void *data;
1343     u16 doffset = 0;
1344     + u8 proto_ctype;
1345    
1346     if (!fou)
1347     return 1;
1348     @@ -210,13 +211,14 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
1349     if (unlikely(guehdr->control))
1350     return gue_control_message(skb, guehdr);
1351    
1352     + proto_ctype = guehdr->proto_ctype;
1353     __skb_pull(skb, sizeof(struct udphdr) + hdrlen);
1354     skb_reset_transport_header(skb);
1355    
1356     if (iptunnel_pull_offloads(skb))
1357     goto drop;
1358    
1359     - return -guehdr->proto_ctype;
1360     + return -proto_ctype;
1361    
1362     drop:
1363     kfree_skb(skb);
1364     diff --git a/net/ipv4/route.c b/net/ipv4/route.c
1365     index c42fb2330b45..0e2cf9634541 100644
1366     --- a/net/ipv4/route.c
1367     +++ b/net/ipv4/route.c
1368     @@ -1170,9 +1170,23 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie)
1369    
1370     static void ipv4_link_failure(struct sk_buff *skb)
1371     {
1372     + struct ip_options opt;
1373     struct rtable *rt;
1374     + int res;
1375     +
1376     + /* Recompile ip options since IPCB may not be valid anymore.
1377     + */
1378     + memset(&opt, 0, sizeof(opt));
1379     + opt.optlen = ip_hdr(skb)->ihl*4 - sizeof(struct iphdr);
1380     +
1381     + rcu_read_lock();
1382     + res = __ip_options_compile(dev_net(skb->dev), &opt, skb, NULL);
1383     + rcu_read_unlock();
1384     +
1385     + if (res)
1386     + return;
1387    
1388     - icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
1389     + __icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0, &opt);
1390    
1391     rt = skb_rtable(skb);
1392     if (rt)
1393     diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
1394     index cd4f13dda49e..e238539c3497 100644
1395     --- a/net/ipv4/tcp_input.c
1396     +++ b/net/ipv4/tcp_input.c
1397     @@ -389,11 +389,12 @@ static int __tcp_grow_window(const struct sock *sk, const struct sk_buff *skb)
1398     static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
1399     {
1400     struct tcp_sock *tp = tcp_sk(sk);
1401     + int room;
1402     +
1403     + room = min_t(int, tp->window_clamp, tcp_space(sk)) - tp->rcv_ssthresh;
1404    
1405     /* Check #1 */
1406     - if (tp->rcv_ssthresh < tp->window_clamp &&
1407     - (int)tp->rcv_ssthresh < tcp_space(sk) &&
1408     - !tcp_under_memory_pressure(sk)) {
1409     + if (room > 0 && !tcp_under_memory_pressure(sk)) {
1410     int incr;
1411    
1412     /* Check #2. Increase window, if skb with such overhead
1413     @@ -406,8 +407,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
1414    
1415     if (incr) {
1416     incr = max_t(int, incr, 2 * skb->len);
1417     - tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr,
1418     - tp->window_clamp);
1419     + tp->rcv_ssthresh += min(room, incr);
1420     inet_csk(sk)->icsk_ack.quick |= 1;
1421     }
1422     }
1423     diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
1424     index 49c8a9c9b91f..1a169de60192 100644
1425     --- a/net/mac80211/driver-ops.h
1426     +++ b/net/mac80211/driver-ops.h
1427     @@ -1163,6 +1163,9 @@ static inline void drv_wake_tx_queue(struct ieee80211_local *local,
1428     {
1429     struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->txq.vif);
1430    
1431     + if (local->in_reconfig)
1432     + return;
1433     +
1434     if (!check_sdata_in_driver(sdata))
1435     return;
1436    
1437     diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
1438     index 29d6699d5a06..55b4c0dc2b93 100644
1439     --- a/scripts/mod/file2alias.c
1440     +++ b/scripts/mod/file2alias.c
1441     @@ -47,49 +47,9 @@ typedef struct {
1442     struct devtable {
1443     const char *device_id; /* name of table, __mod_<name>__*_device_table. */
1444     unsigned long id_size;
1445     - void *function;
1446     + int (*do_entry)(const char *filename, void *symval, char *alias);
1447     };
1448    
1449     -#define ___cat(a,b) a ## b
1450     -#define __cat(a,b) ___cat(a,b)
1451     -
1452     -/* we need some special handling for this host tool running eventually on
1453     - * Darwin. The Mach-O section handling is a bit different than ELF section
1454     - * handling. The differnces in detail are:
1455     - * a) we have segments which have sections
1456     - * b) we need a API call to get the respective section symbols */
1457     -#if defined(__MACH__)
1458     -#include <mach-o/getsect.h>
1459     -
1460     -#define INIT_SECTION(name) do { \
1461     - unsigned long name ## _len; \
1462     - char *__cat(pstart_,name) = getsectdata("__TEXT", \
1463     - #name, &__cat(name,_len)); \
1464     - char *__cat(pstop_,name) = __cat(pstart_,name) + \
1465     - __cat(name, _len); \
1466     - __cat(__start_,name) = (void *)__cat(pstart_,name); \
1467     - __cat(__stop_,name) = (void *)__cat(pstop_,name); \
1468     - } while (0)
1469     -#define SECTION(name) __attribute__((section("__TEXT, " #name)))
1470     -
1471     -struct devtable **__start___devtable, **__stop___devtable;
1472     -#else
1473     -#define INIT_SECTION(name) /* no-op for ELF */
1474     -#define SECTION(name) __attribute__((section(#name)))
1475     -
1476     -/* We construct a table of pointers in an ELF section (pointers generally
1477     - * go unpadded by gcc). ld creates boundary syms for us. */
1478     -extern struct devtable *__start___devtable[], *__stop___devtable[];
1479     -#endif /* __MACH__ */
1480     -
1481     -#if !defined(__used)
1482     -# if __GNUC__ == 3 && __GNUC_MINOR__ < 3
1483     -# define __used __attribute__((__unused__))
1484     -# else
1485     -# define __used __attribute__((__used__))
1486     -# endif
1487     -#endif
1488     -
1489     /* Define a variable f that holds the value of field f of struct devid
1490     * based at address m.
1491     */
1492     @@ -102,16 +62,6 @@ extern struct devtable *__start___devtable[], *__stop___devtable[];
1493     #define DEF_FIELD_ADDR(m, devid, f) \
1494     typeof(((struct devid *)0)->f) *f = ((m) + OFF_##devid##_##f)
1495    
1496     -/* Add a table entry. We test function type matches while we're here. */
1497     -#define ADD_TO_DEVTABLE(device_id, type, function) \
1498     - static struct devtable __cat(devtable,__LINE__) = { \
1499     - device_id + 0*sizeof((function)((const char *)NULL, \
1500     - (void *)NULL, \
1501     - (char *)NULL)), \
1502     - SIZE_##type, (function) }; \
1503     - static struct devtable *SECTION(__devtable) __used \
1504     - __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__)
1505     -
1506     #define ADD(str, sep, cond, field) \
1507     do { \
1508     strcat(str, sep); \
1509     @@ -431,7 +381,6 @@ static int do_hid_entry(const char *filename,
1510    
1511     return 1;
1512     }
1513     -ADD_TO_DEVTABLE("hid", hid_device_id, do_hid_entry);
1514    
1515     /* Looks like: ieee1394:venNmoNspNverN */
1516     static int do_ieee1394_entry(const char *filename,
1517     @@ -456,7 +405,6 @@ static int do_ieee1394_entry(const char *filename,
1518     add_wildcard(alias);
1519     return 1;
1520     }
1521     -ADD_TO_DEVTABLE("ieee1394", ieee1394_device_id, do_ieee1394_entry);
1522    
1523     /* Looks like: pci:vNdNsvNsdNbcNscNiN. */
1524     static int do_pci_entry(const char *filename,
1525     @@ -500,7 +448,6 @@ static int do_pci_entry(const char *filename,
1526     add_wildcard(alias);
1527     return 1;
1528     }
1529     -ADD_TO_DEVTABLE("pci", pci_device_id, do_pci_entry);
1530    
1531     /* looks like: "ccw:tNmNdtNdmN" */
1532     static int do_ccw_entry(const char *filename,
1533     @@ -524,7 +471,6 @@ static int do_ccw_entry(const char *filename,
1534     add_wildcard(alias);
1535     return 1;
1536     }
1537     -ADD_TO_DEVTABLE("ccw", ccw_device_id, do_ccw_entry);
1538    
1539     /* looks like: "ap:tN" */
1540     static int do_ap_entry(const char *filename,
1541     @@ -535,7 +481,6 @@ static int do_ap_entry(const char *filename,
1542     sprintf(alias, "ap:t%02X*", dev_type);
1543     return 1;
1544     }
1545     -ADD_TO_DEVTABLE("ap", ap_device_id, do_ap_entry);
1546    
1547     /* looks like: "css:tN" */
1548     static int do_css_entry(const char *filename,
1549     @@ -546,7 +491,6 @@ static int do_css_entry(const char *filename,
1550     sprintf(alias, "css:t%01X", type);
1551     return 1;
1552     }
1553     -ADD_TO_DEVTABLE("css", css_device_id, do_css_entry);
1554    
1555     /* Looks like: "serio:tyNprNidNexN" */
1556     static int do_serio_entry(const char *filename,
1557     @@ -566,7 +510,6 @@ static int do_serio_entry(const char *filename,
1558     add_wildcard(alias);
1559     return 1;
1560     }
1561     -ADD_TO_DEVTABLE("serio", serio_device_id, do_serio_entry);
1562    
1563     /* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
1564     * "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
1565     @@ -604,7 +547,6 @@ static int do_acpi_entry(const char *filename,
1566     }
1567     return 1;
1568     }
1569     -ADD_TO_DEVTABLE("acpi", acpi_device_id, do_acpi_entry);
1570    
1571     /* looks like: "pnp:dD" */
1572     static void do_pnp_device_entry(void *symval, unsigned long size,
1573     @@ -725,7 +667,6 @@ static int do_pcmcia_entry(const char *filename,
1574     add_wildcard(alias);
1575     return 1;
1576     }
1577     -ADD_TO_DEVTABLE("pcmcia", pcmcia_device_id, do_pcmcia_entry);
1578    
1579     static int do_vio_entry(const char *filename, void *symval,
1580     char *alias)
1581     @@ -745,7 +686,6 @@ static int do_vio_entry(const char *filename, void *symval,
1582     add_wildcard(alias);
1583     return 1;
1584     }
1585     -ADD_TO_DEVTABLE("vio", vio_device_id, do_vio_entry);
1586    
1587     #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
1588    
1589     @@ -818,7 +758,6 @@ static int do_input_entry(const char *filename, void *symval,
1590     do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
1591     return 1;
1592     }
1593     -ADD_TO_DEVTABLE("input", input_device_id, do_input_entry);
1594    
1595     static int do_eisa_entry(const char *filename, void *symval,
1596     char *alias)
1597     @@ -830,7 +769,6 @@ static int do_eisa_entry(const char *filename, void *symval,
1598     strcat(alias, "*");
1599     return 1;
1600     }
1601     -ADD_TO_DEVTABLE("eisa", eisa_device_id, do_eisa_entry);
1602    
1603     /* Looks like: parisc:tNhvNrevNsvN */
1604     static int do_parisc_entry(const char *filename, void *symval,
1605     @@ -850,7 +788,6 @@ static int do_parisc_entry(const char *filename, void *symval,
1606     add_wildcard(alias);
1607     return 1;
1608     }
1609     -ADD_TO_DEVTABLE("parisc", parisc_device_id, do_parisc_entry);
1610    
1611     /* Looks like: sdio:cNvNdN. */
1612     static int do_sdio_entry(const char *filename,
1613     @@ -867,7 +804,6 @@ static int do_sdio_entry(const char *filename,
1614     add_wildcard(alias);
1615     return 1;
1616     }
1617     -ADD_TO_DEVTABLE("sdio", sdio_device_id, do_sdio_entry);
1618    
1619     /* Looks like: ssb:vNidNrevN. */
1620     static int do_ssb_entry(const char *filename,
1621     @@ -884,7 +820,6 @@ static int do_ssb_entry(const char *filename,
1622     add_wildcard(alias);
1623     return 1;
1624     }
1625     -ADD_TO_DEVTABLE("ssb", ssb_device_id, do_ssb_entry);
1626    
1627     /* Looks like: bcma:mNidNrevNclN. */
1628     static int do_bcma_entry(const char *filename,
1629     @@ -903,7 +838,6 @@ static int do_bcma_entry(const char *filename,
1630     add_wildcard(alias);
1631     return 1;
1632     }
1633     -ADD_TO_DEVTABLE("bcma", bcma_device_id, do_bcma_entry);
1634    
1635     /* Looks like: virtio:dNvN */
1636     static int do_virtio_entry(const char *filename, void *symval,
1637     @@ -919,7 +853,6 @@ static int do_virtio_entry(const char *filename, void *symval,
1638     add_wildcard(alias);
1639     return 1;
1640     }
1641     -ADD_TO_DEVTABLE("virtio", virtio_device_id, do_virtio_entry);
1642    
1643     /*
1644     * Looks like: vmbus:guid
1645     @@ -942,7 +875,6 @@ static int do_vmbus_entry(const char *filename, void *symval,
1646    
1647     return 1;
1648     }
1649     -ADD_TO_DEVTABLE("vmbus", hv_vmbus_device_id, do_vmbus_entry);
1650    
1651     /* Looks like: i2c:S */
1652     static int do_i2c_entry(const char *filename, void *symval,
1653     @@ -953,7 +885,6 @@ static int do_i2c_entry(const char *filename, void *symval,
1654    
1655     return 1;
1656     }
1657     -ADD_TO_DEVTABLE("i2c", i2c_device_id, do_i2c_entry);
1658    
1659     /* Looks like: spi:S */
1660     static int do_spi_entry(const char *filename, void *symval,
1661     @@ -964,7 +895,6 @@ static int do_spi_entry(const char *filename, void *symval,
1662    
1663     return 1;
1664     }
1665     -ADD_TO_DEVTABLE("spi", spi_device_id, do_spi_entry);
1666    
1667     static const struct dmifield {
1668     const char *prefix;
1669     @@ -1019,7 +949,6 @@ static int do_dmi_entry(const char *filename, void *symval,
1670     strcat(alias, ":");
1671     return 1;
1672     }
1673     -ADD_TO_DEVTABLE("dmi", dmi_system_id, do_dmi_entry);
1674    
1675     static int do_platform_entry(const char *filename,
1676     void *symval, char *alias)
1677     @@ -1028,7 +957,6 @@ static int do_platform_entry(const char *filename,
1678     sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
1679     return 1;
1680     }
1681     -ADD_TO_DEVTABLE("platform", platform_device_id, do_platform_entry);
1682    
1683     static int do_mdio_entry(const char *filename,
1684     void *symval, char *alias)
1685     @@ -1053,7 +981,6 @@ static int do_mdio_entry(const char *filename,
1686    
1687     return 1;
1688     }
1689     -ADD_TO_DEVTABLE("mdio", mdio_device_id, do_mdio_entry);
1690    
1691     /* Looks like: zorro:iN. */
1692     static int do_zorro_entry(const char *filename, void *symval,
1693     @@ -1064,7 +991,6 @@ static int do_zorro_entry(const char *filename, void *symval,
1694     ADD(alias, "i", id != ZORRO_WILDCARD, id);
1695     return 1;
1696     }
1697     -ADD_TO_DEVTABLE("zorro", zorro_device_id, do_zorro_entry);
1698    
1699     /* looks like: "pnp:dD" */
1700     static int do_isapnp_entry(const char *filename,
1701     @@ -1080,7 +1006,6 @@ static int do_isapnp_entry(const char *filename,
1702     (function >> 12) & 0x0f, (function >> 8) & 0x0f);
1703     return 1;
1704     }
1705     -ADD_TO_DEVTABLE("isapnp", isapnp_device_id, do_isapnp_entry);
1706    
1707     /* Looks like: "ipack:fNvNdN". */
1708     static int do_ipack_entry(const char *filename,
1709     @@ -1096,7 +1021,6 @@ static int do_ipack_entry(const char *filename,
1710     add_wildcard(alias);
1711     return 1;
1712     }
1713     -ADD_TO_DEVTABLE("ipack", ipack_device_id, do_ipack_entry);
1714    
1715     /*
1716     * Append a match expression for a single masked hex digit.
1717     @@ -1167,7 +1091,6 @@ static int do_amba_entry(const char *filename,
1718    
1719     return 1;
1720     }
1721     -ADD_TO_DEVTABLE("amba", amba_id, do_amba_entry);
1722    
1723     /*
1724     * looks like: "mipscdmm:tN"
1725     @@ -1183,7 +1106,6 @@ static int do_mips_cdmm_entry(const char *filename,
1726     sprintf(alias, "mipscdmm:t%02X*", type);
1727     return 1;
1728     }
1729     -ADD_TO_DEVTABLE("mipscdmm", mips_cdmm_device_id, do_mips_cdmm_entry);
1730    
1731     /* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
1732     * All fields are numbers. It would be nicer to use strings for vendor
1733     @@ -1208,7 +1130,6 @@ static int do_x86cpu_entry(const char *filename, void *symval,
1734     sprintf(alias + strlen(alias), "%04X*", feature);
1735     return 1;
1736     }
1737     -ADD_TO_DEVTABLE("x86cpu", x86_cpu_id, do_x86cpu_entry);
1738    
1739     /* LOOKS like cpu:type:*:feature:*FEAT* */
1740     static int do_cpu_entry(const char *filename, void *symval, char *alias)
1741     @@ -1218,7 +1139,6 @@ static int do_cpu_entry(const char *filename, void *symval, char *alias)
1742     sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
1743     return 1;
1744     }
1745     -ADD_TO_DEVTABLE("cpu", cpu_feature, do_cpu_entry);
1746    
1747     /* Looks like: mei:S:uuid:N:* */
1748     static int do_mei_entry(const char *filename, void *symval,
1749     @@ -1237,7 +1157,6 @@ static int do_mei_entry(const char *filename, void *symval,
1750    
1751     return 1;
1752     }
1753     -ADD_TO_DEVTABLE("mei", mei_cl_device_id, do_mei_entry);
1754    
1755     /* Looks like: rapidio:vNdNavNadN */
1756     static int do_rio_entry(const char *filename,
1757     @@ -1257,7 +1176,6 @@ static int do_rio_entry(const char *filename,
1758     add_wildcard(alias);
1759     return 1;
1760     }
1761     -ADD_TO_DEVTABLE("rapidio", rio_device_id, do_rio_entry);
1762    
1763     /* Looks like: ulpi:vNpN */
1764     static int do_ulpi_entry(const char *filename, void *symval,
1765     @@ -1270,7 +1188,6 @@ static int do_ulpi_entry(const char *filename, void *symval,
1766    
1767     return 1;
1768     }
1769     -ADD_TO_DEVTABLE("ulpi", ulpi_device_id, do_ulpi_entry);
1770    
1771     /* Looks like: hdaudio:vNrNaN */
1772     static int do_hda_entry(const char *filename, void *symval, char *alias)
1773     @@ -1287,7 +1204,6 @@ static int do_hda_entry(const char *filename, void *symval, char *alias)
1774     add_wildcard(alias);
1775     return 1;
1776     }
1777     -ADD_TO_DEVTABLE("hdaudio", hda_device_id, do_hda_entry);
1778    
1779     /* Looks like: fsl-mc:vNdN */
1780     static int do_fsl_mc_entry(const char *filename, void *symval,
1781     @@ -1299,7 +1215,6 @@ static int do_fsl_mc_entry(const char *filename, void *symval,
1782     sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
1783     return 1;
1784     }
1785     -ADD_TO_DEVTABLE("fslmc", fsl_mc_device_id, do_fsl_mc_entry);
1786    
1787     /* Does namelen bytes of name exactly match the symbol? */
1788     static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1789     @@ -1313,12 +1228,11 @@ static bool sym_is(const char *name, unsigned namelen, const char *symbol)
1790     static void do_table(void *symval, unsigned long size,
1791     unsigned long id_size,
1792     const char *device_id,
1793     - void *function,
1794     + int (*do_entry)(const char *filename, void *symval, char *alias),
1795     struct module *mod)
1796     {
1797     unsigned int i;
1798     char alias[500];
1799     - int (*do_entry)(const char *, void *entry, char *alias) = function;
1800    
1801     device_id_check(mod->name, device_id, size, id_size, symval);
1802     /* Leave last one: it's the terminator. */
1803     @@ -1332,6 +1246,44 @@ static void do_table(void *symval, unsigned long size,
1804     }
1805     }
1806    
1807     +static const struct devtable devtable[] = {
1808     + {"hid", SIZE_hid_device_id, do_hid_entry},
1809     + {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
1810     + {"pci", SIZE_pci_device_id, do_pci_entry},
1811     + {"ccw", SIZE_ccw_device_id, do_ccw_entry},
1812     + {"ap", SIZE_ap_device_id, do_ap_entry},
1813     + {"css", SIZE_css_device_id, do_css_entry},
1814     + {"serio", SIZE_serio_device_id, do_serio_entry},
1815     + {"acpi", SIZE_acpi_device_id, do_acpi_entry},
1816     + {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
1817     + {"vio", SIZE_vio_device_id, do_vio_entry},
1818     + {"input", SIZE_input_device_id, do_input_entry},
1819     + {"eisa", SIZE_eisa_device_id, do_eisa_entry},
1820     + {"parisc", SIZE_parisc_device_id, do_parisc_entry},
1821     + {"sdio", SIZE_sdio_device_id, do_sdio_entry},
1822     + {"ssb", SIZE_ssb_device_id, do_ssb_entry},
1823     + {"bcma", SIZE_bcma_device_id, do_bcma_entry},
1824     + {"virtio", SIZE_virtio_device_id, do_virtio_entry},
1825     + {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
1826     + {"i2c", SIZE_i2c_device_id, do_i2c_entry},
1827     + {"spi", SIZE_spi_device_id, do_spi_entry},
1828     + {"dmi", SIZE_dmi_system_id, do_dmi_entry},
1829     + {"platform", SIZE_platform_device_id, do_platform_entry},
1830     + {"mdio", SIZE_mdio_device_id, do_mdio_entry},
1831     + {"zorro", SIZE_zorro_device_id, do_zorro_entry},
1832     + {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
1833     + {"ipack", SIZE_ipack_device_id, do_ipack_entry},
1834     + {"amba", SIZE_amba_id, do_amba_entry},
1835     + {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
1836     + {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
1837     + {"cpu", SIZE_cpu_feature, do_cpu_entry},
1838     + {"mei", SIZE_mei_cl_device_id, do_mei_entry},
1839     + {"rapidio", SIZE_rio_device_id, do_rio_entry},
1840     + {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
1841     + {"hdaudio", SIZE_hda_device_id, do_hda_entry},
1842     + {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
1843     +};
1844     +
1845     /* Create MODULE_ALIAS() statements.
1846     * At this time, we cannot write the actual output C source yet,
1847     * so we write into the mod->dev_table_buf buffer. */
1848     @@ -1386,13 +1338,14 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
1849     else if (sym_is(name, namelen, "pnp_card"))
1850     do_pnp_card_entries(symval, sym->st_size, mod);
1851     else {
1852     - struct devtable **p;
1853     - INIT_SECTION(__devtable);
1854     + int i;
1855     +
1856     + for (i = 0; i < ARRAY_SIZE(devtable); i++) {
1857     + const struct devtable *p = &devtable[i];
1858    
1859     - for (p = __start___devtable; p < __stop___devtable; p++) {
1860     - if (sym_is(name, namelen, (*p)->device_id)) {
1861     - do_table(symval, sym->st_size, (*p)->id_size,
1862     - (*p)->device_id, (*p)->function, mod);
1863     + if (sym_is(name, namelen, p->device_id)) {
1864     + do_table(symval, sym->st_size, p->id_size,
1865     + p->device_id, p->do_entry, mod);
1866     break;
1867     }
1868     }
1869     diff --git a/security/device_cgroup.c b/security/device_cgroup.c
1870     index 03c1652c9a1f..db3bdc91c520 100644
1871     --- a/security/device_cgroup.c
1872     +++ b/security/device_cgroup.c
1873     @@ -568,7 +568,7 @@ static int propagate_exception(struct dev_cgroup *devcg_root,
1874     devcg->behavior == DEVCG_DEFAULT_ALLOW) {
1875     rc = dev_exception_add(devcg, ex);
1876     if (rc)
1877     - break;
1878     + return rc;
1879     } else {
1880     /*
1881     * in the other possible cases:
1882     diff --git a/sound/core/info.c b/sound/core/info.c
1883     index 8ab72e0f5932..358a6947342d 100644
1884     --- a/sound/core/info.c
1885     +++ b/sound/core/info.c
1886     @@ -724,8 +724,11 @@ snd_info_create_entry(const char *name, struct snd_info_entry *parent)
1887     INIT_LIST_HEAD(&entry->children);
1888     INIT_LIST_HEAD(&entry->list);
1889     entry->parent = parent;
1890     - if (parent)
1891     + if (parent) {
1892     + mutex_lock(&parent->access);
1893     list_add_tail(&entry->list, &parent->children);
1894     + mutex_unlock(&parent->access);
1895     + }
1896     return entry;
1897     }
1898    
1899     @@ -809,7 +812,12 @@ void snd_info_free_entry(struct snd_info_entry * entry)
1900     list_for_each_entry_safe(p, n, &entry->children, list)
1901     snd_info_free_entry(p);
1902    
1903     - list_del(&entry->list);
1904     + p = entry->parent;
1905     + if (p) {
1906     + mutex_lock(&p->access);
1907     + list_del(&entry->list);
1908     + mutex_unlock(&p->access);
1909     + }
1910     kfree(entry->name);
1911     if (entry->private_free)
1912     entry->private_free(entry);
1913     diff --git a/sound/core/init.c b/sound/core/init.c
1914     index 6bda8436d765..02e96c580cb7 100644
1915     --- a/sound/core/init.c
1916     +++ b/sound/core/init.c
1917     @@ -408,14 +408,7 @@ int snd_card_disconnect(struct snd_card *card)
1918     card->shutdown = 1;
1919     spin_unlock(&card->files_lock);
1920    
1921     - /* phase 1: disable fops (user space) operations for ALSA API */
1922     - mutex_lock(&snd_card_mutex);
1923     - snd_cards[card->number] = NULL;
1924     - clear_bit(card->number, snd_cards_lock);
1925     - mutex_unlock(&snd_card_mutex);
1926     -
1927     - /* phase 2: replace file->f_op with special dummy operations */
1928     -
1929     + /* replace file->f_op with special dummy operations */
1930     spin_lock(&card->files_lock);
1931     list_for_each_entry(mfile, &card->files_list, list) {
1932     /* it's critical part, use endless loop */
1933     @@ -431,7 +424,7 @@ int snd_card_disconnect(struct snd_card *card)
1934     }
1935     spin_unlock(&card->files_lock);
1936    
1937     - /* phase 3: notify all connected devices about disconnection */
1938     + /* notify all connected devices about disconnection */
1939     /* at this point, they cannot respond to any calls except release() */
1940    
1941     #if IS_ENABLED(CONFIG_SND_MIXER_OSS)
1942     @@ -447,6 +440,13 @@ int snd_card_disconnect(struct snd_card *card)
1943     device_del(&card->card_dev);
1944     card->registered = false;
1945     }
1946     +
1947     + /* disable fops (user space) operations for ALSA API */
1948     + mutex_lock(&snd_card_mutex);
1949     + snd_cards[card->number] = NULL;
1950     + clear_bit(card->number, snd_cards_lock);
1951     + mutex_unlock(&snd_card_mutex);
1952     +
1953     #ifdef CONFIG_PM
1954     wake_up(&card->power_sleep);
1955     #endif