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Message-ID: <20190427124332.GB9093@kroah.com>
Date: Sat, 27 Apr 2019 14:43:32 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, Jiri Slaby <jslaby@...e.cz>
Subject: Re: Linux 4.9.171
diff --git a/Makefile b/Makefile
index 966069dab768..dbdef749e1c8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 170
+SUBLEVEL = 171
EXTRAVERSION =
NAME = Roaring Lionus
@@ -655,8 +655,7 @@ KBUILD_CFLAGS += $(call cc-option,-fdata-sections,)
endif
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
-KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
+KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
else
ifdef CONFIG_PROFILE_ALL_BRANCHES
KBUILD_CFLAGS += -O2 $(call cc-disable-warning,maybe-uninitialized,)
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index d7116f5935fb..86a43450f014 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -53,7 +53,7 @@
static inline int
arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
{
- int oldval, ret, tmp;
+ int oldval = 0, ret, tmp;
pagefault_disable();
diff --git a/arch/x86/crypto/poly1305-avx2-x86_64.S b/arch/x86/crypto/poly1305-avx2-x86_64.S
index eff2f414e22b..ec234c43b3f4 100644
--- a/arch/x86/crypto/poly1305-avx2-x86_64.S
+++ b/arch/x86/crypto/poly1305-avx2-x86_64.S
@@ -321,6 +321,12 @@ ENTRY(poly1305_4block_avx2)
vpaddq t2,t1,t1
vmovq t1x,d4
+ # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
+ # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
+ # amount. Careful: we must not assume the carry bits 'd0 >> 26',
+ # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
+ # integers. It's true in a single-block implementation, but not here.
+
# d1 += d0 >> 26
mov d0,%rax
shr $26,%rax
@@ -359,16 +365,16 @@ ENTRY(poly1305_4block_avx2)
# h0 += (d4 >> 26) * 5
mov d4,%rax
shr $26,%rax
- lea (%eax,%eax,4),%eax
- add %eax,%ebx
+ lea (%rax,%rax,4),%rax
+ add %rax,%rbx
# h4 = d4 & 0x3ffffff
mov d4,%rax
and $0x3ffffff,%eax
mov %eax,h4
# h1 += h0 >> 26
- mov %ebx,%eax
- shr $26,%eax
+ mov %rbx,%rax
+ shr $26,%rax
add %eax,h1
# h0 = h0 & 0x3ffffff
andl $0x3ffffff,%ebx
diff --git a/arch/x86/crypto/poly1305-sse2-x86_64.S b/arch/x86/crypto/poly1305-sse2-x86_64.S
index 338c748054ed..639d9760b089 100644
--- a/arch/x86/crypto/poly1305-sse2-x86_64.S
+++ b/arch/x86/crypto/poly1305-sse2-x86_64.S
@@ -251,16 +251,16 @@ ENTRY(poly1305_block_sse2)
# h0 += (d4 >> 26) * 5
mov d4,%rax
shr $26,%rax
- lea (%eax,%eax,4),%eax
- add %eax,%ebx
+ lea (%rax,%rax,4),%rax
+ add %rax,%rbx
# h4 = d4 & 0x3ffffff
mov d4,%rax
and $0x3ffffff,%eax
mov %eax,h4
# h1 += h0 >> 26
- mov %ebx,%eax
- shr $26,%eax
+ mov %rbx,%rax
+ shr $26,%rax
add %eax,h1
# h0 = h0 & 0x3ffffff
andl $0x3ffffff,%ebx
@@ -518,6 +518,12 @@ ENTRY(poly1305_2block_sse2)
paddq t2,t1
movq t1,d4
+ # Now do a partial reduction mod (2^130)-5, carrying h0 -> h1 -> h2 ->
+ # h3 -> h4 -> h0 -> h1 to get h0,h2,h3,h4 < 2^26 and h1 < 2^26 + a small
+ # amount. Careful: we must not assume the carry bits 'd0 >> 26',
+ # 'd1 >> 26', 'd2 >> 26', 'd3 >> 26', and '(d4 >> 26) * 5' fit in 32-bit
+ # integers. It's true in a single-block implementation, but not here.
+
# d1 += d0 >> 26
mov d0,%rax
shr $26,%rax
@@ -556,16 +562,16 @@ ENTRY(poly1305_2block_sse2)
# h0 += (d4 >> 26) * 5
mov d4,%rax
shr $26,%rax
- lea (%eax,%eax,4),%eax
- add %eax,%ebx
+ lea (%rax,%rax,4),%rax
+ add %rax,%rbx
# h4 = d4 & 0x3ffffff
mov d4,%rax
and $0x3ffffff,%eax
mov %eax,h4
# h1 += h0 >> 26
- mov %ebx,%eax
- shr $26,%eax
+ mov %rbx,%rax
+ shr $26,%rax
add %eax,h1
# h0 = h0 & 0x3ffffff
andl $0x3ffffff,%ebx
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index afb222b63cae..de050d5a4506 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -113,22 +113,39 @@ static __initconst const u64 amd_hw_cache_event_ids
};
/*
- * AMD Performance Monitor K7 and later.
+ * AMD Performance Monitor K7 and later, up to and including Family 16h:
*/
static const u64 amd_perfmon_event_map[PERF_COUNT_HW_MAX] =
{
- [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
- [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
- [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
- [PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
- [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
- [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */
- [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */
+ [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */
+};
+
+/*
+ * AMD Performance Monitor Family 17h and later:
+ */
+static const u64 amd_f17h_perfmon_event_map[PERF_COUNT_HW_MAX] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0xff60,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x0287,
+ [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x0187,
};
static u64 amd_pmu_event_map(int hw_event)
{
+ if (boot_cpu_data.x86 >= 0x17)
+ return amd_f17h_perfmon_event_map[hw_event];
+
return amd_perfmon_event_map[hw_event];
}
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 64a70b2e2285..3f3cfeca1083 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -545,6 +545,7 @@ void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs)
unsigned long *sara = stack_addr(regs);
ri->ret_addr = (kprobe_opcode_t *) *sara;
+ ri->fp = sara;
/* Replace the return addr with trampoline addr */
*sara = (unsigned long) &kretprobe_trampoline;
@@ -746,15 +747,21 @@ __visible __used void *trampoline_handler(struct pt_regs *regs)
unsigned long flags, orig_ret_address = 0;
unsigned long trampoline_address = (unsigned long)&kretprobe_trampoline;
kprobe_opcode_t *correct_ret_addr = NULL;
+ void *frame_pointer;
+ bool skipped = false;
INIT_HLIST_HEAD(&empty_rp);
kretprobe_hash_lock(current, &head, &flags);
/* fixup registers */
#ifdef CONFIG_X86_64
regs->cs = __KERNEL_CS;
+ /* On x86-64, we use pt_regs->sp for return address holder. */
+ frame_pointer = ®s->sp;
#else
regs->cs = __KERNEL_CS | get_kernel_rpl();
regs->gs = 0;
+ /* On x86-32, we use pt_regs->flags for return address holder. */
+ frame_pointer = ®s->flags;
#endif
regs->ip = trampoline_address;
regs->orig_ax = ~0UL;
@@ -776,8 +783,25 @@ __visible __used void *trampoline_handler(struct pt_regs *regs)
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
+ /*
+ * Return probes must be pushed on this hash list correct
+ * order (same as return order) so that it can be poped
+ * correctly. However, if we find it is pushed it incorrect
+ * order, this means we find a function which should not be
+ * probed, because the wrong order entry is pushed on the
+ * path of processing other kretprobe itself.
+ */
+ if (ri->fp != frame_pointer) {
+ if (!skipped)
+ pr_warn("kretprobe is stacked incorrectly. Trying to fixup.\n");
+ skipped = true;
+ continue;
+ }
orig_ret_address = (unsigned long)ri->ret_addr;
+ if (skipped)
+ pr_warn("%ps must be blacklisted because of incorrect kretprobe order\n",
+ ri->rp->kp.addr);
if (orig_ret_address != trampoline_address)
/*
@@ -795,6 +819,8 @@ __visible __used void *trampoline_handler(struct pt_regs *regs)
if (ri->task != current)
/* another task is sharing our hash bucket */
continue;
+ if (ri->fp != frame_pointer)
+ continue;
orig_ret_address = (unsigned long)ri->ret_addr;
if (ri->rp && ri->rp->handler) {
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 510cfc06701a..b636a1e849fd 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2579,15 +2579,13 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
* CR0/CR3/CR4/EFER. It's all a bit more complicated if the vCPU
* supports long mode.
*/
- cr4 = ctxt->ops->get_cr(ctxt, 4);
if (emulator_has_longmode(ctxt)) {
struct desc_struct cs_desc;
/* Zero CR4.PCIDE before CR0.PG. */
- if (cr4 & X86_CR4_PCIDE) {
+ cr4 = ctxt->ops->get_cr(ctxt, 4);
+ if (cr4 & X86_CR4_PCIDE)
ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PCIDE);
- cr4 &= ~X86_CR4_PCIDE;
- }
/* A 32-bit code segment is required to clear EFER.LMA. */
memset(&cs_desc, 0, sizeof(cs_desc));
@@ -2601,13 +2599,16 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
if (cr0 & X86_CR0_PE)
ctxt->ops->set_cr(ctxt, 0, cr0 & ~(X86_CR0_PG | X86_CR0_PE));
- /* Now clear CR4.PAE (which must be done before clearing EFER.LME). */
- if (cr4 & X86_CR4_PAE)
- ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE);
+ if (emulator_has_longmode(ctxt)) {
+ /* Clear CR4.PAE before clearing EFER.LME. */
+ cr4 = ctxt->ops->get_cr(ctxt, 4);
+ if (cr4 & X86_CR4_PAE)
+ ctxt->ops->set_cr(ctxt, 4, cr4 & ~X86_CR4_PAE);
- /* And finally go back to 32-bit mode. */
- efer = 0;
- ctxt->ops->set_msr(ctxt, MSR_EFER, efer);
+ /* And finally go back to 32-bit mode. */
+ efer = 0;
+ ctxt->ops->set_msr(ctxt, MSR_EFER, efer);
+ }
smbase = ctxt->ops->get_smbase(ctxt);
if (emulator_has_longmode(ctxt))
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 01eb0451b96d..9a6d258c3c16 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3940,14 +3940,25 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
kvm_lapic_reg_write(apic, APIC_ICR, icrl);
break;
case AVIC_IPI_FAILURE_TARGET_NOT_RUNNING: {
+ int i;
+ struct kvm_vcpu *vcpu;
+ struct kvm *kvm = svm->vcpu.kvm;
struct kvm_lapic *apic = svm->vcpu.arch.apic;
/*
- * Update ICR high and low, then emulate sending IPI,
- * which is handled when writing APIC_ICR.
+ * At this point, we expect that the AVIC HW has already
+ * set the appropriate IRR bits on the valid target
+ * vcpus. So, we just need to kick the appropriate vcpu.
*/
- kvm_lapic_reg_write(apic, APIC_ICR2, icrh);
- kvm_lapic_reg_write(apic, APIC_ICR, icrl);
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ bool m = kvm_apic_match_dest(vcpu, apic,
+ icrl & KVM_APIC_SHORT_MASK,
+ GET_APIC_DEST_FIELD(icrh),
+ icrl & KVM_APIC_DEST_MASK);
+
+ if (m && !avic_vcpu_is_running(vcpu))
+ kvm_vcpu_wake_up(vcpu);
+ }
break;
}
case AVIC_IPI_FAILURE_INVALID_TARGET:
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 9033088ca231..ebff33765ac3 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -4527,7 +4527,49 @@ static struct hash_testvec poly1305_tv_template[] = {
.psize = 80,
.digest = "\x13\x00\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00\x00\x00",
- },
+ }, { /* Regression test for overflow in AVX2 implementation */
+ .plaintext = "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff\xff\xff\xff\xff"
+ "\xff\xff\xff\xff",
+ .psize = 300,
+ .digest = "\xfb\x5e\x96\xd8\x61\xd5\xc7\xc8"
+ "\x78\xe5\x87\xcc\x2d\x5a\x22\xe1",
+ }
};
/*
diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c
index 95ce2e9ccdc6..cc4e642d3180 100644
--- a/drivers/char/tpm/tpm_i2c_atmel.c
+++ b/drivers/char/tpm/tpm_i2c_atmel.c
@@ -65,7 +65,15 @@ static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
dev_dbg(&chip->dev,
"%s(buf=%*ph len=%0zx) -> sts=%d\n", __func__,
(int)min_t(size_t, 64, len), buf, len, status);
- return status;
+
+ if (status < 0)
+ return status;
+
+ /* The upper layer does not support incomplete sends. */
+ if (status != len)
+ return -E2BIG;
+
+ return 0;
}
static int i2c_atmel_recv(struct tpm_chip *chip, u8 *buf, size_t count)
diff --git a/drivers/crypto/amcc/crypto4xx_alg.c b/drivers/crypto/amcc/crypto4xx_alg.c
index 4afca3968773..e3b8bebfdd30 100644
--- a/drivers/crypto/amcc/crypto4xx_alg.c
+++ b/drivers/crypto/amcc/crypto4xx_alg.c
@@ -138,7 +138,8 @@ static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher,
sa = (struct dynamic_sa_ctl *) ctx->sa_in;
ctx->hash_final = 0;
- set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, SA_NOT_SAVE_IV,
+ set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, (cm == CRYPTO_MODE_CBC ?
+ SA_SAVE_IV : SA_NOT_SAVE_IV),
SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE,
SA_NO_HEADER_PROC, SA_HASH_ALG_NULL,
SA_CIPHER_ALG_AES, SA_PAD_TYPE_ZERO,
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
index c7524bbbaf98..7d066fa9f2ad 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -646,6 +646,15 @@ static u32 crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,
addr = dma_map_page(dev->core_dev->device, sg_page(dst),
dst->offset, dst->length, DMA_FROM_DEVICE);
}
+
+ if (pd_uinfo->sa_va->sa_command_0.bf.save_iv == SA_SAVE_IV) {
+ struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
+
+ crypto4xx_memcpy_from_le32((u32 *)req->iv,
+ pd_uinfo->sr_va->save_iv,
+ crypto_skcipher_ivsize(skcipher));
+ }
+
crypto4xx_ret_sg_desc(dev, pd_uinfo);
if (ablk_req->base.complete != NULL)
ablk_req->base.complete(&ablk_req->base, 0);
diff --git a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
index 1d645c9ab417..cac262a912c1 100644
--- a/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
+++ b/drivers/hid/i2c-hid/i2c-hid-dmi-quirks.c
@@ -337,7 +337,8 @@ static const struct dmi_system_id i2c_hid_dmi_desc_override_table[] = {
DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "FlexBook edge11 - M-FBE11"),
},
.driver_data = (void *)&sipodev_desc
- }
+ },
+ { } /* Terminate list */
};
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 784636800361..780f886ccbfe 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1340,6 +1340,8 @@ static int kxcjk1013_resume(struct device *dev)
mutex_lock(&data->mutex);
ret = kxcjk1013_set_mode(data, OPERATION);
+ if (ret == 0)
+ ret = kxcjk1013_set_range(data, data->range);
mutex_unlock(&data->mutex);
return ret;
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 22c4c17cd996..a1d072ecb717 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -121,6 +121,7 @@ static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,
if (sigma_delta->info->has_registers) {
data[0] = reg << sigma_delta->info->addr_shift;
data[0] |= sigma_delta->info->read_mask;
+ data[0] |= sigma_delta->comm;
spi_message_add_tail(&t[0], &m);
}
spi_message_add_tail(&t[1], &m);
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index e3e2155b0386..dd9f2280927b 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -704,23 +704,29 @@ static int at91_adc_read_raw(struct iio_dev *idev,
ret = wait_event_interruptible_timeout(st->wq_data_avail,
st->done,
msecs_to_jiffies(1000));
- if (ret == 0)
- ret = -ETIMEDOUT;
- if (ret < 0) {
- mutex_unlock(&st->lock);
- return ret;
- }
-
- *val = st->last_value;
+ /* Disable interrupts, regardless if adc conversion was
+ * successful or not
+ */
at91_adc_writel(st, AT91_ADC_CHDR,
AT91_ADC_CH(chan->channel));
at91_adc_writel(st, AT91_ADC_IDR, BIT(chan->channel));
- st->last_value = 0;
- st->done = false;
+ if (ret > 0) {
+ /* a valid conversion took place */
+ *val = st->last_value;
+ st->last_value = 0;
+ st->done = false;
+ ret = IIO_VAL_INT;
+ } else if (ret == 0) {
+ /* conversion timeout */
+ dev_err(&idev->dev, "ADC Channel %d timeout.\n",
+ chan->channel);
+ ret = -ETIMEDOUT;
+ }
+
mutex_unlock(&st->lock);
- return IIO_VAL_INT;
+ return ret;
case IIO_CHAN_INFO_SCALE:
*val = st->vref_mv;
diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 821919dd245b..b5a5517e3ce1 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -583,11 +583,10 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
return bmg160_get_filter(data, val);
case IIO_CHAN_INFO_SCALE:
- *val = 0;
switch (chan->type) {
case IIO_TEMP:
- *val2 = 500000;
- return IIO_VAL_INT_PLUS_MICRO;
+ *val = 500;
+ return IIO_VAL_INT;
case IIO_ANGL_VEL:
{
int i;
@@ -595,6 +594,7 @@ static int bmg160_read_raw(struct iio_dev *indio_dev,
for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
if (bmg160_scale_table[i].dps_range ==
data->dps_range) {
+ *val = 0;
*val2 = bmg160_scale_table[i].scale;
return IIO_VAL_INT_PLUS_MICRO;
}
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 6bf58d27b6fc..df306caba296 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -944,8 +944,7 @@ static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq)
return (!(host->flags & SDHCI_DEVICE_DEAD) &&
((mrq->cmd && mrq->cmd->error) ||
(mrq->sbc && mrq->sbc->error) ||
- (mrq->data && ((mrq->data->error && !mrq->data->stop) ||
- (mrq->data->stop && mrq->data->stop->error))) ||
+ (mrq->data && mrq->data->stop && mrq->data->stop->error) ||
(host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST)));
}
@@ -997,6 +996,16 @@ static void sdhci_finish_data(struct sdhci_host *host)
host->data = NULL;
host->data_cmd = NULL;
+ /*
+ * The controller needs a reset of internal state machines upon error
+ * conditions.
+ */
+ if (data->error) {
+ if (!host->cmd || host->cmd == data_cmd)
+ sdhci_do_reset(host, SDHCI_RESET_CMD);
+ sdhci_do_reset(host, SDHCI_RESET_DATA);
+ }
+
if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) ==
(SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA))
sdhci_adma_table_post(host, data);
@@ -1021,17 +1030,6 @@ static void sdhci_finish_data(struct sdhci_host *host)
if (data->stop &&
(data->error ||
!data->mrq->sbc)) {
-
- /*
- * The controller needs a reset of internal state machines
- * upon error conditions.
- */
- if (data->error) {
- if (!host->cmd || host->cmd == data_cmd)
- sdhci_do_reset(host, SDHCI_RESET_CMD);
- sdhci_do_reset(host, SDHCI_RESET_DATA);
- }
-
/*
* 'cap_cmd_during_tfr' request must not use the command line
* after mmc_command_done() has been called. It is upper layer's
@@ -2457,7 +2455,7 @@ static void sdhci_timeout_data_timer(unsigned long data)
* *
\*****************************************************************************/
-static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
+static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p)
{
if (!host->cmd) {
/*
@@ -2480,20 +2478,12 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
else
host->cmd->error = -EILSEQ;
- /*
- * If this command initiates a data phase and a response
- * CRC error is signalled, the card can start transferring
- * data - the card may have received the command without
- * error. We must not terminate the mmc_request early.
- *
- * If the card did not receive the command or returned an
- * error which prevented it sending data, the data phase
- * will time out.
- */
+ /* Treat data command CRC error the same as data CRC error */
if (host->cmd->data &&
(intmask & (SDHCI_INT_CRC | SDHCI_INT_TIMEOUT)) ==
SDHCI_INT_CRC) {
host->cmd = NULL;
+ *intmask_p |= SDHCI_INT_DATA_CRC;
return;
}
@@ -2722,7 +2712,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
}
if (intmask & SDHCI_INT_CMD_MASK)
- sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
+ sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask);
if (intmask & SDHCI_INT_DATA_MASK)
sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 24a3433f3944..93169729dfc9 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3134,8 +3134,12 @@ static int bond_netdev_event(struct notifier_block *this,
return NOTIFY_DONE;
if (event_dev->flags & IFF_MASTER) {
+ int ret;
+
netdev_dbg(event_dev, "IFF_MASTER\n");
- return bond_master_netdev_event(event, event_dev);
+ ret = bond_master_netdev_event(event, event_dev);
+ if (ret != NOTIFY_DONE)
+ return ret;
}
if (event_dev->flags & IFF_SLAVE) {
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 375b6810bf46..b8874faaa813 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1251,6 +1251,23 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
goto err_option_port_add;
}
+ /* set promiscuity level to new slave */
+ if (dev->flags & IFF_PROMISC) {
+ err = dev_set_promiscuity(port_dev, 1);
+ if (err)
+ goto err_set_slave_promisc;
+ }
+
+ /* set allmulti level to new slave */
+ if (dev->flags & IFF_ALLMULTI) {
+ err = dev_set_allmulti(port_dev, 1);
+ if (err) {
+ if (dev->flags & IFF_PROMISC)
+ dev_set_promiscuity(port_dev, -1);
+ goto err_set_slave_promisc;
+ }
+ }
+
netif_addr_lock_bh(dev);
dev_uc_sync_multiple(port_dev, dev);
dev_mc_sync_multiple(port_dev, dev);
@@ -1267,6 +1284,9 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
return 0;
+err_set_slave_promisc:
+ __team_option_inst_del_port(team, port);
+
err_option_port_add:
team_upper_dev_unlink(team, port);
@@ -1312,6 +1332,12 @@ static int team_port_del(struct team *team, struct net_device *port_dev)
team_port_disable(team, port);
list_del_rcu(&port->list);
+
+ if (dev->flags & IFF_PROMISC)
+ dev_set_promiscuity(port_dev, -1);
+ if (dev->flags & IFF_ALLMULTI)
+ dev_set_allmulti(port_dev, -1);
+
team_upper_dev_unlink(team, port);
netdev_rx_handler_unregister(port_dev);
team_port_disable_netpoll(port);
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00.h b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
index f68d492129c6..822833a52dd3 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00.h
@@ -669,7 +669,6 @@ enum rt2x00_state_flags {
CONFIG_CHANNEL_HT40,
CONFIG_POWERSAVING,
CONFIG_HT_DISABLED,
- CONFIG_QOS_DISABLED,
CONFIG_MONITORING,
/*
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
index 987c7c4f43cd..55036ce5465c 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
@@ -666,18 +666,8 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
rt2x00dev->intf_associated--;
rt2x00leds_led_assoc(rt2x00dev, !!rt2x00dev->intf_associated);
-
- clear_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
}
- /*
- * Check for access point which do not support 802.11e . We have to
- * generate data frames sequence number in S/W for such AP, because
- * of H/W bug.
- */
- if (changes & BSS_CHANGED_QOS && !bss_conf->qos)
- set_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags);
-
/*
* When the erp information has changed, we should perform
* additional configuration steps. For all other changes we are done.
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
index 68b620b2462f..9a15a69b96a6 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
@@ -201,15 +201,18 @@ static void rt2x00queue_create_tx_descriptor_seq(struct rt2x00_dev *rt2x00dev,
if (!rt2x00_has_cap_flag(rt2x00dev, REQUIRE_SW_SEQNO)) {
/*
* rt2800 has a H/W (or F/W) bug, device incorrectly increase
- * seqno on retransmited data (non-QOS) frames. To workaround
- * the problem let's generate seqno in software if QOS is
- * disabled.
+ * seqno on retransmitted data (non-QOS) and management frames.
+ * To workaround the problem let's generate seqno in software.
+ * Except for beacons which are transmitted periodically by H/W
+ * hence hardware has to assign seqno for them.
*/
- if (test_bit(CONFIG_QOS_DISABLED, &rt2x00dev->flags))
- __clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
- else
+ if (ieee80211_is_beacon(hdr->frame_control)) {
+ __set_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
/* H/W will generate sequence number */
return;
+ }
+
+ __clear_bit(ENTRY_TXD_GENERATE_SEQ, &txdesc->flags);
}
/*
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index e3ffd244603e..97aeaddd600d 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -1935,7 +1935,6 @@ static void fc_rport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp)
FC_RPORT_DBG(rdata, "Received LOGO request while in state %s\n",
fc_rport_state(rdata));
- rdata->flags &= ~FC_RP_STARTED;
fc_rport_enter_delete(rdata, RPORT_EV_STOP);
mutex_unlock(&rdata->rp_mutex);
kref_put(&rdata->kref, rdata->local_port->tt.rport_destroy);
diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c
index 5036eebb9162..2f174a34d9e9 100644
--- a/drivers/staging/comedi/drivers/ni_usb6501.c
+++ b/drivers/staging/comedi/drivers/ni_usb6501.c
@@ -472,10 +472,8 @@ static int ni6501_alloc_usb_buffers(struct comedi_device *dev)
size = usb_endpoint_maxp(devpriv->ep_tx);
devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
- if (!devpriv->usb_tx_buf) {
- kfree(devpriv->usb_rx_buf);
+ if (!devpriv->usb_tx_buf)
return -ENOMEM;
- }
return 0;
}
@@ -527,6 +525,9 @@ static int ni6501_auto_attach(struct comedi_device *dev,
if (!devpriv)
return -ENOMEM;
+ mutex_init(&devpriv->mut);
+ usb_set_intfdata(intf, devpriv);
+
ret = ni6501_find_endpoints(dev);
if (ret)
return ret;
@@ -535,9 +536,6 @@ static int ni6501_auto_attach(struct comedi_device *dev,
if (ret)
return ret;
- mutex_init(&devpriv->mut);
- usb_set_intfdata(intf, devpriv);
-
ret = comedi_alloc_subdevices(dev, 2);
if (ret)
return ret;
diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index a004aed0147a..1800eb3ae017 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -691,10 +691,8 @@ static int vmk80xx_alloc_usb_buffers(struct comedi_device *dev)
size = usb_endpoint_maxp(devpriv->ep_tx);
devpriv->usb_tx_buf = kzalloc(size, GFP_KERNEL);
- if (!devpriv->usb_tx_buf) {
- kfree(devpriv->usb_rx_buf);
+ if (!devpriv->usb_tx_buf)
return -ENOMEM;
- }
return 0;
}
@@ -809,6 +807,8 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,
devpriv->model = board->model;
+ sema_init(&devpriv->limit_sem, 8);
+
ret = vmk80xx_find_usb_endpoints(dev);
if (ret)
return ret;
@@ -817,8 +817,6 @@ static int vmk80xx_auto_attach(struct comedi_device *dev,
if (ret)
return ret;
- sema_init(&devpriv->limit_sem, 8);
-
usb_set_intfdata(intf, devpriv);
if (devpriv->model == VMK8055_MODEL)
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 4dc9ca3a11b4..b82a4ab77860 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -109,10 +109,10 @@
#define AD7192_CH_AIN3 BIT(6) /* AIN3 - AINCOM */
#define AD7192_CH_AIN4 BIT(7) /* AIN4 - AINCOM */
-#define AD7193_CH_AIN1P_AIN2M 0x000 /* AIN1(+) - AIN2(-) */
-#define AD7193_CH_AIN3P_AIN4M 0x001 /* AIN3(+) - AIN4(-) */
-#define AD7193_CH_AIN5P_AIN6M 0x002 /* AIN5(+) - AIN6(-) */
-#define AD7193_CH_AIN7P_AIN8M 0x004 /* AIN7(+) - AIN8(-) */
+#define AD7193_CH_AIN1P_AIN2M 0x001 /* AIN1(+) - AIN2(-) */
+#define AD7193_CH_AIN3P_AIN4M 0x002 /* AIN3(+) - AIN4(-) */
+#define AD7193_CH_AIN5P_AIN6M 0x004 /* AIN5(+) - AIN6(-) */
+#define AD7193_CH_AIN7P_AIN8M 0x008 /* AIN7(+) - AIN8(-) */
#define AD7193_CH_TEMP 0x100 /* Temp senseor */
#define AD7193_CH_AIN2P_AIN2M 0x200 /* AIN2(+) - AIN2(-) */
#define AD7193_CH_AIN1 0x401 /* AIN1 - AINCOM */
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 2383caf88b67..a54dbfe664cd 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -863,8 +863,12 @@ static int vhost_new_umem_range(struct vhost_umem *umem,
u64 start, u64 size, u64 end,
u64 userspace_addr, int perm)
{
- struct vhost_umem_node *tmp, *node = kmalloc(sizeof(*node), GFP_ATOMIC);
+ struct vhost_umem_node *tmp, *node;
+ if (!size)
+ return -EFAULT;
+
+ node = kmalloc(sizeof(*node), GFP_ATOMIC);
if (!node)
return -ENOMEM;
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 4ed4736b5bc6..5367b684c1f7 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -1157,6 +1157,7 @@ cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file)
}
struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file);
+void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_hdlr);
void cifsFileInfo_put(struct cifsFileInfo *cifs_file);
#define CIFS_CACHE_READ_FLG 1
@@ -1651,6 +1652,7 @@ GLOBAL_EXTERN spinlock_t gidsidlock;
#endif /* CONFIG_CIFS_ACL */
void cifs_oplock_break(struct work_struct *work);
+void cifs_queue_oplock_break(struct cifsFileInfo *cfile);
extern const struct slow_work_ops cifs_oplock_break_ops;
extern struct workqueue_struct *cifsiod_wq;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7d295bf283ca..e7f1773b25d6 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -358,12 +358,30 @@ cifsFileInfo_get(struct cifsFileInfo *cifs_file)
return cifs_file;
}
-/*
- * Release a reference on the file private data. This may involve closing
- * the filehandle out on the server. Must be called without holding
- * tcon->open_file_lock and cifs_file->file_info_lock.
+/**
+ * cifsFileInfo_put - release a reference of file priv data
+ *
+ * Always potentially wait for oplock handler. See _cifsFileInfo_put().
*/
void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
+{
+ _cifsFileInfo_put(cifs_file, true);
+}
+
+/**
+ * _cifsFileInfo_put - release a reference of file priv data
+ *
+ * This may involve closing the filehandle @cifs_file out on the
+ * server. Must be called without holding tcon->open_file_lock and
+ * cifs_file->file_info_lock.
+ *
+ * If @wait_for_oplock_handler is true and we are releasing the last
+ * reference, wait for any running oplock break handler of the file
+ * and cancel any pending one. If calling this function from the
+ * oplock break handler, you need to pass false.
+ *
+ */
+void _cifsFileInfo_put(struct cifsFileInfo *cifs_file, bool wait_oplock_handler)
{
struct inode *inode = d_inode(cifs_file->dentry);
struct cifs_tcon *tcon = tlink_tcon(cifs_file->tlink);
@@ -411,7 +429,8 @@ void cifsFileInfo_put(struct cifsFileInfo *cifs_file)
spin_unlock(&tcon->open_file_lock);
- oplock_break_cancelled = cancel_work_sync(&cifs_file->oplock_break);
+ oplock_break_cancelled = wait_oplock_handler ?
+ cancel_work_sync(&cifs_file->oplock_break) : false;
if (!tcon->need_reconnect && !cifs_file->invalidHandle) {
struct TCP_Server_Info *server = tcon->ses->server;
@@ -3913,6 +3932,7 @@ void cifs_oplock_break(struct work_struct *work)
cinode);
cifs_dbg(FYI, "Oplock release rc = %d\n", rc);
}
+ _cifsFileInfo_put(cfile, false /* do not wait for ourself */);
cifs_done_oplock_break(cinode);
}
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 50559a80acf8..5e75df69062d 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -494,8 +494,7 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&pCifsInode->flags);
- queue_work(cifsoplockd_wq,
- &netfile->oplock_break);
+ cifs_queue_oplock_break(netfile);
netfile->oplock_break_cancelled = false;
spin_unlock(&tcon->open_file_lock);
@@ -592,6 +591,28 @@ void cifs_put_writer(struct cifsInodeInfo *cinode)
spin_unlock(&cinode->writers_lock);
}
+/**
+ * cifs_queue_oplock_break - queue the oplock break handler for cfile
+ *
+ * This function is called from the demultiplex thread when it
+ * receives an oplock break for @cfile.
+ *
+ * Assumes the tcon->open_file_lock is held.
+ * Assumes cfile->file_info_lock is NOT held.
+ */
+void cifs_queue_oplock_break(struct cifsFileInfo *cfile)
+{
+ /*
+ * Bump the handle refcount now while we hold the
+ * open_file_lock to enforce the validity of it for the oplock
+ * break handler. The matching put is done at the end of the
+ * handler.
+ */
+ cifsFileInfo_get(cfile);
+
+ queue_work(cifsoplockd_wq, &cfile->oplock_break);
+}
+
void cifs_done_oplock_break(struct cifsInodeInfo *cinode)
{
clear_bit(CIFS_INODE_PENDING_OPLOCK_BREAK, &cinode->flags);
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index 244d27bb8fba..9994d15a32fc 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -512,7 +512,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp,
clear_bit(CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&cinode->flags);
- queue_work(cifsoplockd_wq, &cfile->oplock_break);
+ cifs_queue_oplock_break(cfile);
kfree(lw);
return true;
}
@@ -656,8 +656,8 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2,
&cinode->flags);
spin_unlock(&cfile->file_info_lock);
- queue_work(cifsoplockd_wq,
- &cfile->oplock_break);
+
+ cifs_queue_oplock_break(cfile);
spin_unlock(&tcon->open_file_lock);
spin_unlock(&cifs_tcp_ses_lock);
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index e23392517db9..cb527c78de9f 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -197,6 +197,7 @@ struct kretprobe_instance {
struct kretprobe *rp;
kprobe_opcode_t *ret_addr;
struct task_struct *task;
+ void *fp;
char data[0];
};
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index f580352cc6e5..e2845dd53b30 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -668,7 +668,6 @@ static void unoptimize_kprobe(struct kprobe *p, bool force)
static int reuse_unused_kprobe(struct kprobe *ap)
{
struct optimized_kprobe *op;
- int ret;
BUG_ON(!kprobe_unused(ap));
/*
@@ -682,9 +681,8 @@ static int reuse_unused_kprobe(struct kprobe *ap)
/* Enable the probe again */
ap->flags &= ~KPROBE_FLAG_DISABLED;
/* Optimize it again (remove from op->list) */
- ret = kprobe_optready(ap);
- if (ret)
- return ret;
+ if (!kprobe_optready(ap))
+ return -EINVAL;
optimize_kprobe(ap);
return 0;
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index d5b779d7e79f..26fc428476b9 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -3446,9 +3446,6 @@ __lock_set_class(struct lockdep_map *lock, const char *name,
unsigned int depth;
int i;
- if (unlikely(!debug_locks))
- return 0;
-
depth = curr->lockdep_depth;
/*
* This function is about (re)setting the class of a held lock,
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1c630d94f86b..4b1e0669740c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4347,12 +4347,15 @@ static enum hrtimer_restart sched_cfs_slack_timer(struct hrtimer *timer)
return HRTIMER_NORESTART;
}
+extern const u64 max_cfs_quota_period;
+
static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
{
struct cfs_bandwidth *cfs_b =
container_of(timer, struct cfs_bandwidth, period_timer);
int overrun;
int idle = 0;
+ int count = 0;
raw_spin_lock(&cfs_b->lock);
for (;;) {
@@ -4360,6 +4363,28 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer)
if (!overrun)
break;
+ if (++count > 3) {
+ u64 new, old = ktime_to_ns(cfs_b->period);
+
+ new = (old * 147) / 128; /* ~115% */
+ new = min(new, max_cfs_quota_period);
+
+ cfs_b->period = ns_to_ktime(new);
+
+ /* since max is 1s, this is limited to 1e9^2, which fits in u64 */
+ cfs_b->quota *= new;
+ cfs_b->quota = div64_u64(cfs_b->quota, old);
+
+ pr_warn_ratelimited(
+ "cfs_period_timer[cpu%d]: period too short, scaling up (new cfs_period_us %lld, cfs_quota_us = %lld)\n",
+ smp_processor_id(),
+ div_u64(new, NSEC_PER_USEC),
+ div_u64(cfs_b->quota, NSEC_PER_USEC));
+
+ /* reset count so we don't come right back in here */
+ count = 0;
+ }
+
idle = do_sched_cfs_period_timer(cfs_b, overrun);
}
if (idle)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 5515d578095b..cf0aeaae567e 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -124,6 +124,7 @@ static int zero;
static int __maybe_unused one = 1;
static int __maybe_unused two = 2;
static int __maybe_unused four = 4;
+static unsigned long zero_ul;
static unsigned long one_ul = 1;
static unsigned long long_max = LONG_MAX;
static int one_hundred = 100;
@@ -1683,7 +1684,7 @@ static struct ctl_table fs_table[] = {
.maxlen = sizeof(files_stat.max_files),
.mode = 0644,
.proc_handler = proc_doulongvec_minmax,
- .extra1 = &zero,
+ .extra1 = &zero_ul,
.extra2 = &long_max,
},
{
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 8f4227d4cd39..0043aef0ed8d 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -32,6 +32,7 @@
#include <linux/list.h>
#include <linux/hash.h>
#include <linux/rcupdate.h>
+#include <linux/kprobes.h>
#include <trace/events/sched.h>
@@ -5246,7 +5247,7 @@ void ftrace_reset_array_ops(struct trace_array *tr)
tr->ops->func = ftrace_stub;
}
-static inline void
+static nokprobe_inline void
__ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *ignored, struct pt_regs *regs)
{
@@ -5309,11 +5310,13 @@ static void ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip,
{
__ftrace_ops_list_func(ip, parent_ip, NULL, regs);
}
+NOKPROBE_SYMBOL(ftrace_ops_list_func);
#else
static void ftrace_ops_no_ops(unsigned long ip, unsigned long parent_ip)
{
__ftrace_ops_list_func(ip, parent_ip, NULL, NULL);
}
+NOKPROBE_SYMBOL(ftrace_ops_no_ops);
#endif
/*
@@ -5343,6 +5346,7 @@ static void ftrace_ops_assist_func(unsigned long ip, unsigned long parent_ip,
preempt_enable_notrace();
trace_clear_recursion(bit);
}
+NOKPROBE_SYMBOL(ftrace_ops_assist_func);
/**
* ftrace_ops_get_func - get the function a trampoline should call
diff --git a/mm/percpu.c b/mm/percpu.c
index 3794cfc88689..0462a2a00f05 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -2048,8 +2048,8 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
ai->groups[group].base_offset = areas[group] - base;
}
- pr_info("Embedded %zu pages/cpu @%p s%zu r%zu d%zu u%zu\n",
- PFN_DOWN(size_sum), base, ai->static_size, ai->reserved_size,
+ pr_info("Embedded %zu pages/cpu s%zu r%zu d%zu u%zu\n",
+ PFN_DOWN(size_sum), ai->static_size, ai->reserved_size,
ai->dyn_size, ai->unit_size);
rc = pcpu_setup_first_chunk(ai, base);
@@ -2162,8 +2162,8 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
}
/* we're ready, commit */
- pr_info("%d %s pages/cpu @%p s%zu r%zu d%zu\n",
- unit_pages, psize_str, vm.addr, ai->static_size,
+ pr_info("%d %s pages/cpu s%zu r%zu d%zu\n",
+ unit_pages, psize_str, ai->static_size,
ai->reserved_size, ai->dyn_size);
rc = pcpu_setup_first_chunk(ai, vm.addr);
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 5e6a4d76659d..9af8d369e112 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1075,13 +1075,8 @@ const char * const vmstat_text[] = {
#endif
#endif /* CONFIG_MEMORY_BALLOON */
#ifdef CONFIG_DEBUG_TLBFLUSH
-#ifdef CONFIG_SMP
"nr_tlb_remote_flush",
"nr_tlb_remote_flush_received",
-#else
- "", /* nr_tlb_remote_flush */
- "", /* nr_tlb_remote_flush_received */
-#endif /* CONFIG_SMP */
"nr_tlb_local_flush_all",
"nr_tlb_local_flush_one",
#endif /* CONFIG_DEBUG_TLBFLUSH */
diff --git a/net/atm/lec.c b/net/atm/lec.c
index 1e84c5226c84..704892d79bf1 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -721,7 +721,10 @@ static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)
static int lec_mcast_attach(struct atm_vcc *vcc, int arg)
{
- if (arg < 0 || arg >= MAX_LEC_ITF || !dev_lec[arg])
+ if (arg < 0 || arg >= MAX_LEC_ITF)
+ return -EINVAL;
+ arg = array_index_nospec(arg, MAX_LEC_ITF);
+ if (!dev_lec[arg])
return -EINVAL;
vcc->proto_data = dev_lec[arg];
return lec_mcast_make(netdev_priv(dev_lec[arg]), vcc);
@@ -739,6 +742,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
i = arg;
if (arg >= MAX_LEC_ITF)
return -EINVAL;
+ i = array_index_nospec(arg, MAX_LEC_ITF);
if (!dev_lec[i]) {
int size;
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 267b46af407f..c615dff40ab4 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -231,13 +231,10 @@ static void __br_handle_local_finish(struct sk_buff *skb)
/* note: already called with rcu_read_lock */
static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
- struct net_bridge_port *p = br_port_get_rcu(skb->dev);
-
__br_handle_local_finish(skb);
- BR_INPUT_SKB_CB(skb)->brdev = p->br->dev;
- br_pass_frame_up(skb);
- return 0;
+ /* return 1 to signal the okfn() was called so it's ok to use the skb */
+ return 1;
}
/*
@@ -308,10 +305,18 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
goto forward;
}
- /* Deliver packet to local host only */
- NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, dev_net(skb->dev),
- NULL, skb, skb->dev, NULL, br_handle_local_finish);
- return RX_HANDLER_CONSUMED;
+ /* The else clause should be hit when nf_hook():
+ * - returns < 0 (drop/error)
+ * - returns = 0 (stolen/nf_queue)
+ * Thus return 1 from the okfn() to signal the skb is ok to pass
+ */
+ if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN,
+ dev_net(skb->dev), NULL, skb, skb->dev, NULL,
+ br_handle_local_finish) == 1) {
+ return RX_HANDLER_PASS;
+ } else {
+ return RX_HANDLER_CONSUMED;
+ }
}
forward:
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 2136e45f5277..964ffff90432 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1983,7 +1983,8 @@ static void br_multicast_start_querier(struct net_bridge *br,
__br_multicast_open(br, query);
- list_for_each_entry(port, &br->port_list, list) {
+ rcu_read_lock();
+ list_for_each_entry_rcu(port, &br->port_list, list) {
if (port->state == BR_STATE_DISABLED ||
port->state == BR_STATE_BLOCKING)
continue;
@@ -1995,6 +1996,7 @@ static void br_multicast_start_querier(struct net_bridge *br,
br_multicast_enable(&port->ip6_own_query);
#endif
}
+ rcu_read_unlock();
}
int br_multicast_toggle(struct net_bridge *br, unsigned long val)
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index 030d1531e897..17acc89f9dec 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -119,6 +119,7 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
struct guehdr *guehdr;
void *data;
u16 doffset = 0;
+ u8 proto_ctype;
if (!fou)
return 1;
@@ -210,13 +211,14 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
if (unlikely(guehdr->control))
return gue_control_message(skb, guehdr);
+ proto_ctype = guehdr->proto_ctype;
__skb_pull(skb, sizeof(struct udphdr) + hdrlen);
skb_reset_transport_header(skb);
if (iptunnel_pull_offloads(skb))
goto drop;
- return -guehdr->proto_ctype;
+ return -proto_ctype;
drop:
kfree_skb(skb);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index c42fb2330b45..0e2cf9634541 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1170,9 +1170,23 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie)
static void ipv4_link_failure(struct sk_buff *skb)
{
+ struct ip_options opt;
struct rtable *rt;
+ int res;
+
+ /* Recompile ip options since IPCB may not be valid anymore.
+ */
+ memset(&opt, 0, sizeof(opt));
+ opt.optlen = ip_hdr(skb)->ihl*4 - sizeof(struct iphdr);
+
+ rcu_read_lock();
+ res = __ip_options_compile(dev_net(skb->dev), &opt, skb, NULL);
+ rcu_read_unlock();
+
+ if (res)
+ return;
- icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
+ __icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0, &opt);
rt = skb_rtable(skb);
if (rt)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index cd4f13dda49e..e238539c3497 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -389,11 +389,12 @@ static int __tcp_grow_window(const struct sock *sk, const struct sk_buff *skb)
static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
{
struct tcp_sock *tp = tcp_sk(sk);
+ int room;
+
+ room = min_t(int, tp->window_clamp, tcp_space(sk)) - tp->rcv_ssthresh;
/* Check #1 */
- if (tp->rcv_ssthresh < tp->window_clamp &&
- (int)tp->rcv_ssthresh < tcp_space(sk) &&
- !tcp_under_memory_pressure(sk)) {
+ if (room > 0 && !tcp_under_memory_pressure(sk)) {
int incr;
/* Check #2. Increase window, if skb with such overhead
@@ -406,8 +407,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
if (incr) {
incr = max_t(int, incr, 2 * skb->len);
- tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr,
- tp->window_clamp);
+ tp->rcv_ssthresh += min(room, incr);
inet_csk(sk)->icsk_ack.quick |= 1;
}
}
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 49c8a9c9b91f..1a169de60192 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1163,6 +1163,9 @@ static inline void drv_wake_tx_queue(struct ieee80211_local *local,
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->txq.vif);
+ if (local->in_reconfig)
+ return;
+
if (!check_sdata_in_driver(sdata))
return;
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index 29d6699d5a06..55b4c0dc2b93 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -47,49 +47,9 @@ typedef struct {
struct devtable {
const char *device_id; /* name of table, __mod_<name>__*_device_table. */
unsigned long id_size;
- void *function;
+ int (*do_entry)(const char *filename, void *symval, char *alias);
};
-#define ___cat(a,b) a ## b
-#define __cat(a,b) ___cat(a,b)
-
-/* we need some special handling for this host tool running eventually on
- * Darwin. The Mach-O section handling is a bit different than ELF section
- * handling. The differnces in detail are:
- * a) we have segments which have sections
- * b) we need a API call to get the respective section symbols */
-#if defined(__MACH__)
-#include <mach-o/getsect.h>
-
-#define INIT_SECTION(name) do { \
- unsigned long name ## _len; \
- char *__cat(pstart_,name) = getsectdata("__TEXT", \
- #name, &__cat(name,_len)); \
- char *__cat(pstop_,name) = __cat(pstart_,name) + \
- __cat(name, _len); \
- __cat(__start_,name) = (void *)__cat(pstart_,name); \
- __cat(__stop_,name) = (void *)__cat(pstop_,name); \
- } while (0)
-#define SECTION(name) __attribute__((section("__TEXT, " #name)))
-
-struct devtable **__start___devtable, **__stop___devtable;
-#else
-#define INIT_SECTION(name) /* no-op for ELF */
-#define SECTION(name) __attribute__((section(#name)))
-
-/* We construct a table of pointers in an ELF section (pointers generally
- * go unpadded by gcc). ld creates boundary syms for us. */
-extern struct devtable *__start___devtable[], *__stop___devtable[];
-#endif /* __MACH__ */
-
-#if !defined(__used)
-# if __GNUC__ == 3 && __GNUC_MINOR__ < 3
-# define __used __attribute__((__unused__))
-# else
-# define __used __attribute__((__used__))
-# endif
-#endif
-
/* Define a variable f that holds the value of field f of struct devid
* based at address m.
*/
@@ -102,16 +62,6 @@ extern struct devtable *__start___devtable[], *__stop___devtable[];
#define DEF_FIELD_ADDR(m, devid, f) \
typeof(((struct devid *)0)->f) *f = ((m) + OFF_##devid##_##f)
-/* Add a table entry. We test function type matches while we're here. */
-#define ADD_TO_DEVTABLE(device_id, type, function) \
- static struct devtable __cat(devtable,__LINE__) = { \
- device_id + 0*sizeof((function)((const char *)NULL, \
- (void *)NULL, \
- (char *)NULL)), \
- SIZE_##type, (function) }; \
- static struct devtable *SECTION(__devtable) __used \
- __cat(devtable_ptr,__LINE__) = &__cat(devtable,__LINE__)
-
#define ADD(str, sep, cond, field) \
do { \
strcat(str, sep); \
@@ -431,7 +381,6 @@ static int do_hid_entry(const char *filename,
return 1;
}
-ADD_TO_DEVTABLE("hid", hid_device_id, do_hid_entry);
/* Looks like: ieee1394:venNmoNspNverN */
static int do_ieee1394_entry(const char *filename,
@@ -456,7 +405,6 @@ static int do_ieee1394_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("ieee1394", ieee1394_device_id, do_ieee1394_entry);
/* Looks like: pci:vNdNsvNsdNbcNscNiN. */
static int do_pci_entry(const char *filename,
@@ -500,7 +448,6 @@ static int do_pci_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("pci", pci_device_id, do_pci_entry);
/* looks like: "ccw:tNmNdtNdmN" */
static int do_ccw_entry(const char *filename,
@@ -524,7 +471,6 @@ static int do_ccw_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("ccw", ccw_device_id, do_ccw_entry);
/* looks like: "ap:tN" */
static int do_ap_entry(const char *filename,
@@ -535,7 +481,6 @@ static int do_ap_entry(const char *filename,
sprintf(alias, "ap:t%02X*", dev_type);
return 1;
}
-ADD_TO_DEVTABLE("ap", ap_device_id, do_ap_entry);
/* looks like: "css:tN" */
static int do_css_entry(const char *filename,
@@ -546,7 +491,6 @@ static int do_css_entry(const char *filename,
sprintf(alias, "css:t%01X", type);
return 1;
}
-ADD_TO_DEVTABLE("css", css_device_id, do_css_entry);
/* Looks like: "serio:tyNprNidNexN" */
static int do_serio_entry(const char *filename,
@@ -566,7 +510,6 @@ static int do_serio_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("serio", serio_device_id, do_serio_entry);
/* looks like: "acpi:ACPI0003" or "acpi:PNP0C0B" or "acpi:LNXVIDEO" or
* "acpi:bbsspp" (bb=base-class, ss=sub-class, pp=prog-if)
@@ -604,7 +547,6 @@ static int do_acpi_entry(const char *filename,
}
return 1;
}
-ADD_TO_DEVTABLE("acpi", acpi_device_id, do_acpi_entry);
/* looks like: "pnp:dD" */
static void do_pnp_device_entry(void *symval, unsigned long size,
@@ -725,7 +667,6 @@ static int do_pcmcia_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("pcmcia", pcmcia_device_id, do_pcmcia_entry);
static int do_vio_entry(const char *filename, void *symval,
char *alias)
@@ -745,7 +686,6 @@ static int do_vio_entry(const char *filename, void *symval,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("vio", vio_device_id, do_vio_entry);
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
@@ -818,7 +758,6 @@ static int do_input_entry(const char *filename, void *symval,
do_input(alias, *swbit, 0, INPUT_DEVICE_ID_SW_MAX);
return 1;
}
-ADD_TO_DEVTABLE("input", input_device_id, do_input_entry);
static int do_eisa_entry(const char *filename, void *symval,
char *alias)
@@ -830,7 +769,6 @@ static int do_eisa_entry(const char *filename, void *symval,
strcat(alias, "*");
return 1;
}
-ADD_TO_DEVTABLE("eisa", eisa_device_id, do_eisa_entry);
/* Looks like: parisc:tNhvNrevNsvN */
static int do_parisc_entry(const char *filename, void *symval,
@@ -850,7 +788,6 @@ static int do_parisc_entry(const char *filename, void *symval,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("parisc", parisc_device_id, do_parisc_entry);
/* Looks like: sdio:cNvNdN. */
static int do_sdio_entry(const char *filename,
@@ -867,7 +804,6 @@ static int do_sdio_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("sdio", sdio_device_id, do_sdio_entry);
/* Looks like: ssb:vNidNrevN. */
static int do_ssb_entry(const char *filename,
@@ -884,7 +820,6 @@ static int do_ssb_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("ssb", ssb_device_id, do_ssb_entry);
/* Looks like: bcma:mNidNrevNclN. */
static int do_bcma_entry(const char *filename,
@@ -903,7 +838,6 @@ static int do_bcma_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("bcma", bcma_device_id, do_bcma_entry);
/* Looks like: virtio:dNvN */
static int do_virtio_entry(const char *filename, void *symval,
@@ -919,7 +853,6 @@ static int do_virtio_entry(const char *filename, void *symval,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("virtio", virtio_device_id, do_virtio_entry);
/*
* Looks like: vmbus:guid
@@ -942,7 +875,6 @@ static int do_vmbus_entry(const char *filename, void *symval,
return 1;
}
-ADD_TO_DEVTABLE("vmbus", hv_vmbus_device_id, do_vmbus_entry);
/* Looks like: i2c:S */
static int do_i2c_entry(const char *filename, void *symval,
@@ -953,7 +885,6 @@ static int do_i2c_entry(const char *filename, void *symval,
return 1;
}
-ADD_TO_DEVTABLE("i2c", i2c_device_id, do_i2c_entry);
/* Looks like: spi:S */
static int do_spi_entry(const char *filename, void *symval,
@@ -964,7 +895,6 @@ static int do_spi_entry(const char *filename, void *symval,
return 1;
}
-ADD_TO_DEVTABLE("spi", spi_device_id, do_spi_entry);
static const struct dmifield {
const char *prefix;
@@ -1019,7 +949,6 @@ static int do_dmi_entry(const char *filename, void *symval,
strcat(alias, ":");
return 1;
}
-ADD_TO_DEVTABLE("dmi", dmi_system_id, do_dmi_entry);
static int do_platform_entry(const char *filename,
void *symval, char *alias)
@@ -1028,7 +957,6 @@ static int do_platform_entry(const char *filename,
sprintf(alias, PLATFORM_MODULE_PREFIX "%s", *name);
return 1;
}
-ADD_TO_DEVTABLE("platform", platform_device_id, do_platform_entry);
static int do_mdio_entry(const char *filename,
void *symval, char *alias)
@@ -1053,7 +981,6 @@ static int do_mdio_entry(const char *filename,
return 1;
}
-ADD_TO_DEVTABLE("mdio", mdio_device_id, do_mdio_entry);
/* Looks like: zorro:iN. */
static int do_zorro_entry(const char *filename, void *symval,
@@ -1064,7 +991,6 @@ static int do_zorro_entry(const char *filename, void *symval,
ADD(alias, "i", id != ZORRO_WILDCARD, id);
return 1;
}
-ADD_TO_DEVTABLE("zorro", zorro_device_id, do_zorro_entry);
/* looks like: "pnp:dD" */
static int do_isapnp_entry(const char *filename,
@@ -1080,7 +1006,6 @@ static int do_isapnp_entry(const char *filename,
(function >> 12) & 0x0f, (function >> 8) & 0x0f);
return 1;
}
-ADD_TO_DEVTABLE("isapnp", isapnp_device_id, do_isapnp_entry);
/* Looks like: "ipack:fNvNdN". */
static int do_ipack_entry(const char *filename,
@@ -1096,7 +1021,6 @@ static int do_ipack_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("ipack", ipack_device_id, do_ipack_entry);
/*
* Append a match expression for a single masked hex digit.
@@ -1167,7 +1091,6 @@ static int do_amba_entry(const char *filename,
return 1;
}
-ADD_TO_DEVTABLE("amba", amba_id, do_amba_entry);
/*
* looks like: "mipscdmm:tN"
@@ -1183,7 +1106,6 @@ static int do_mips_cdmm_entry(const char *filename,
sprintf(alias, "mipscdmm:t%02X*", type);
return 1;
}
-ADD_TO_DEVTABLE("mipscdmm", mips_cdmm_device_id, do_mips_cdmm_entry);
/* LOOKS like cpu:type:x86,venVVVVfamFFFFmodMMMM:feature:*,FEAT,*
* All fields are numbers. It would be nicer to use strings for vendor
@@ -1208,7 +1130,6 @@ static int do_x86cpu_entry(const char *filename, void *symval,
sprintf(alias + strlen(alias), "%04X*", feature);
return 1;
}
-ADD_TO_DEVTABLE("x86cpu", x86_cpu_id, do_x86cpu_entry);
/* LOOKS like cpu:type:*:feature:*FEAT* */
static int do_cpu_entry(const char *filename, void *symval, char *alias)
@@ -1218,7 +1139,6 @@ static int do_cpu_entry(const char *filename, void *symval, char *alias)
sprintf(alias, "cpu:type:*:feature:*%04X*", feature);
return 1;
}
-ADD_TO_DEVTABLE("cpu", cpu_feature, do_cpu_entry);
/* Looks like: mei:S:uuid:N:* */
static int do_mei_entry(const char *filename, void *symval,
@@ -1237,7 +1157,6 @@ static int do_mei_entry(const char *filename, void *symval,
return 1;
}
-ADD_TO_DEVTABLE("mei", mei_cl_device_id, do_mei_entry);
/* Looks like: rapidio:vNdNavNadN */
static int do_rio_entry(const char *filename,
@@ -1257,7 +1176,6 @@ static int do_rio_entry(const char *filename,
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("rapidio", rio_device_id, do_rio_entry);
/* Looks like: ulpi:vNpN */
static int do_ulpi_entry(const char *filename, void *symval,
@@ -1270,7 +1188,6 @@ static int do_ulpi_entry(const char *filename, void *symval,
return 1;
}
-ADD_TO_DEVTABLE("ulpi", ulpi_device_id, do_ulpi_entry);
/* Looks like: hdaudio:vNrNaN */
static int do_hda_entry(const char *filename, void *symval, char *alias)
@@ -1287,7 +1204,6 @@ static int do_hda_entry(const char *filename, void *symval, char *alias)
add_wildcard(alias);
return 1;
}
-ADD_TO_DEVTABLE("hdaudio", hda_device_id, do_hda_entry);
/* Looks like: fsl-mc:vNdN */
static int do_fsl_mc_entry(const char *filename, void *symval,
@@ -1299,7 +1215,6 @@ static int do_fsl_mc_entry(const char *filename, void *symval,
sprintf(alias, "fsl-mc:v%08Xd%s", vendor, *obj_type);
return 1;
}
-ADD_TO_DEVTABLE("fslmc", fsl_mc_device_id, do_fsl_mc_entry);
/* Does namelen bytes of name exactly match the symbol? */
static bool sym_is(const char *name, unsigned namelen, const char *symbol)
@@ -1313,12 +1228,11 @@ static bool sym_is(const char *name, unsigned namelen, const char *symbol)
static void do_table(void *symval, unsigned long size,
unsigned long id_size,
const char *device_id,
- void *function,
+ int (*do_entry)(const char *filename, void *symval, char *alias),
struct module *mod)
{
unsigned int i;
char alias[500];
- int (*do_entry)(const char *, void *entry, char *alias) = function;
device_id_check(mod->name, device_id, size, id_size, symval);
/* Leave last one: it's the terminator. */
@@ -1332,6 +1246,44 @@ static void do_table(void *symval, unsigned long size,
}
}
+static const struct devtable devtable[] = {
+ {"hid", SIZE_hid_device_id, do_hid_entry},
+ {"ieee1394", SIZE_ieee1394_device_id, do_ieee1394_entry},
+ {"pci", SIZE_pci_device_id, do_pci_entry},
+ {"ccw", SIZE_ccw_device_id, do_ccw_entry},
+ {"ap", SIZE_ap_device_id, do_ap_entry},
+ {"css", SIZE_css_device_id, do_css_entry},
+ {"serio", SIZE_serio_device_id, do_serio_entry},
+ {"acpi", SIZE_acpi_device_id, do_acpi_entry},
+ {"pcmcia", SIZE_pcmcia_device_id, do_pcmcia_entry},
+ {"vio", SIZE_vio_device_id, do_vio_entry},
+ {"input", SIZE_input_device_id, do_input_entry},
+ {"eisa", SIZE_eisa_device_id, do_eisa_entry},
+ {"parisc", SIZE_parisc_device_id, do_parisc_entry},
+ {"sdio", SIZE_sdio_device_id, do_sdio_entry},
+ {"ssb", SIZE_ssb_device_id, do_ssb_entry},
+ {"bcma", SIZE_bcma_device_id, do_bcma_entry},
+ {"virtio", SIZE_virtio_device_id, do_virtio_entry},
+ {"vmbus", SIZE_hv_vmbus_device_id, do_vmbus_entry},
+ {"i2c", SIZE_i2c_device_id, do_i2c_entry},
+ {"spi", SIZE_spi_device_id, do_spi_entry},
+ {"dmi", SIZE_dmi_system_id, do_dmi_entry},
+ {"platform", SIZE_platform_device_id, do_platform_entry},
+ {"mdio", SIZE_mdio_device_id, do_mdio_entry},
+ {"zorro", SIZE_zorro_device_id, do_zorro_entry},
+ {"isapnp", SIZE_isapnp_device_id, do_isapnp_entry},
+ {"ipack", SIZE_ipack_device_id, do_ipack_entry},
+ {"amba", SIZE_amba_id, do_amba_entry},
+ {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
+ {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
+ {"cpu", SIZE_cpu_feature, do_cpu_entry},
+ {"mei", SIZE_mei_cl_device_id, do_mei_entry},
+ {"rapidio", SIZE_rio_device_id, do_rio_entry},
+ {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},
+ {"hdaudio", SIZE_hda_device_id, do_hda_entry},
+ {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry},
+};
+
/* Create MODULE_ALIAS() statements.
* At this time, we cannot write the actual output C source yet,
* so we write into the mod->dev_table_buf buffer. */
@@ -1386,13 +1338,14 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
else if (sym_is(name, namelen, "pnp_card"))
do_pnp_card_entries(symval, sym->st_size, mod);
else {
- struct devtable **p;
- INIT_SECTION(__devtable);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(devtable); i++) {
+ const struct devtable *p = &devtable[i];
- for (p = __start___devtable; p < __stop___devtable; p++) {
- if (sym_is(name, namelen, (*p)->device_id)) {
- do_table(symval, sym->st_size, (*p)->id_size,
- (*p)->device_id, (*p)->function, mod);
+ if (sym_is(name, namelen, p->device_id)) {
+ do_table(symval, sym->st_size, p->id_size,
+ p->device_id, p->do_entry, mod);
break;
}
}
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 03c1652c9a1f..db3bdc91c520 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -568,7 +568,7 @@ static int propagate_exception(struct dev_cgroup *devcg_root,
devcg->behavior == DEVCG_DEFAULT_ALLOW) {
rc = dev_exception_add(devcg, ex);
if (rc)
- break;
+ return rc;
} else {
/*
* in the other possible cases:
diff --git a/sound/core/info.c b/sound/core/info.c
index 8ab72e0f5932..358a6947342d 100644
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@ -724,8 +724,11 @@ snd_info_create_entry(const char *name, struct snd_info_entry *parent)
INIT_LIST_HEAD(&entry->children);
INIT_LIST_HEAD(&entry->list);
entry->parent = parent;
- if (parent)
+ if (parent) {
+ mutex_lock(&parent->access);
list_add_tail(&entry->list, &parent->children);
+ mutex_unlock(&parent->access);
+ }
return entry;
}
@@ -809,7 +812,12 @@ void snd_info_free_entry(struct snd_info_entry * entry)
list_for_each_entry_safe(p, n, &entry->children, list)
snd_info_free_entry(p);
- list_del(&entry->list);
+ p = entry->parent;
+ if (p) {
+ mutex_lock(&p->access);
+ list_del(&entry->list);
+ mutex_unlock(&p->access);
+ }
kfree(entry->name);
if (entry->private_free)
entry->private_free(entry);
diff --git a/sound/core/init.c b/sound/core/init.c
index 6bda8436d765..02e96c580cb7 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -408,14 +408,7 @@ int snd_card_disconnect(struct snd_card *card)
card->shutdown = 1;
spin_unlock(&card->files_lock);
- /* phase 1: disable fops (user space) operations for ALSA API */
- mutex_lock(&snd_card_mutex);
- snd_cards[card->number] = NULL;
- clear_bit(card->number, snd_cards_lock);
- mutex_unlock(&snd_card_mutex);
-
- /* phase 2: replace file->f_op with special dummy operations */
-
+ /* replace file->f_op with special dummy operations */
spin_lock(&card->files_lock);
list_for_each_entry(mfile, &card->files_list, list) {
/* it's critical part, use endless loop */
@@ -431,7 +424,7 @@ int snd_card_disconnect(struct snd_card *card)
}
spin_unlock(&card->files_lock);
- /* phase 3: notify all connected devices about disconnection */
+ /* notify all connected devices about disconnection */
/* at this point, they cannot respond to any calls except release() */
#if IS_ENABLED(CONFIG_SND_MIXER_OSS)
@@ -447,6 +440,13 @@ int snd_card_disconnect(struct snd_card *card)
device_del(&card->card_dev);
card->registered = false;
}
+
+ /* disable fops (user space) operations for ALSA API */
+ mutex_lock(&snd_card_mutex);
+ snd_cards[card->number] = NULL;
+ clear_bit(card->number, snd_cards_lock);
+ mutex_unlock(&snd_card_mutex);
+
#ifdef CONFIG_PM
wake_up(&card->power_sleep);
#endif
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