Re: Linux 4.9.36

Greg KH
2017-07-05T14:09:45Z

diff --git a/Documentation/devicetree/bindings/net/mediatek-net.txt b/Documentation/devicetree/bindings/net/mediatek-net.txt
index c010fafc66a8..c7194e87d5f4 100644
--- a/Documentation/devicetree/bindings/net/mediatek-net.txt
+++ b/Documentation/devicetree/bindings/net/mediatek-net.txt
@@ -7,7 +7,7 @@ have dual GMAC each represented by a child node..
* Ethernet controller node

Required properties:
-- compatible: Should be "mediatek,mt7623-eth"
+- compatible: Should be "mediatek,mt2701-eth"
- reg: Address and length of the register set for the device
- interrupts: Should contain the three frame engines interrupts in numeric
order. These are fe_int0, fe_int1 and fe_int2.
diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index bc1c3c8bf8fa..62bdc5f2bf16 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -35,6 +35,15 @@ Optional Properties:
- broken-turn-around: If set, indicates the PHY device does not correctly
release the turn around line low at the end of a MDIO transaction.

+- eee-broken-100tx:
+- eee-broken-1000t:
+- eee-broken-10gt:
+- eee-broken-1000kx:
+- eee-broken-10gkx4:
+- eee-broken-10gkr:
+ Mark the corresponding energy efficient ethernet mode as broken and
+ request the ethernet to stop advertising it.
+
Example:

ethernet-phy@0 {
diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.txt b/Documentation/devicetree/bindings/net/ti,dp83867.txt
index 5d21141a68b5..75bcaa355880 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83867.txt
+++ b/Documentation/devicetree/bindings/net/ti,dp83867.txt
@@ -3,9 +3,11 @@
Required properties:
- reg - The ID number for the phy, usually a small integer
- ti,rx-internal-delay - RGMII Receive Clock Delay - see dt-bindings/net/ti-dp83867.h
- for applicable values
+ for applicable values. Required only if interface type is
+ PHY_INTERFACE_MODE_RGMII_ID or PHY_INTERFACE_MODE_RGMII_RXID
- ti,tx-internal-delay - RGMII Transmit Clock Delay - see dt-bindings/net/ti-dp83867.h
- for applicable values
+ for applicable values. Required only if interface type is
+ PHY_INTERFACE_MODE_RGMII_ID or PHY_INTERFACE_MODE_RGMII_TXID
- ti,fifo-depth - Transmitt FIFO depth- see dt-bindings/net/ti-dp83867.h
for applicable values

diff --git a/Makefile b/Makefile
index 0a8d47465f97..4263dca12f07 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 9
-SUBLEVEL = 35
+SUBLEVEL = 36
EXTRAVERSION =
NAME = Roaring Lionus

diff --git a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
index 8f9a69ca818c..efe53998c961 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
+++ b/arch/arm/boot/dts/logicpd-torpedo-som.dtsi
@@ -121,7 +121,7 @@
&i2c3 {
clock-frequency = <400000>;
at24@50 {
- compatible = "at24,24c02";
+ compatible = "atmel,24c64";
readonly;
reg = <0x50>;
};
diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index e920dd83e443..f989145480c8 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -222,6 +222,14 @@ static int _omap_device_notifier_call(struct notifier_block *nb,
dev_err(dev, "failed to idle\n");
}
break;
+ case BUS_NOTIFY_BIND_DRIVER:
+ od = to_omap_device(pdev);
+ if (od && (od->_state == OMAP_DEVICE_STATE_ENABLED) &&
+ pm_runtime_status_suspended(dev)) {
+ od->_driver_status = BUS_NOTIFY_BIND_DRIVER;
+ pm_runtime_set_active(dev);
+ }
+ break;
case BUS_NOTIFY_ADD_DEVICE:
if (pdev->dev.of_node)
omap_device_build_from_dt(pdev);
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 5cbfd9f86412..f7c741358f37 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1211,15 +1211,15 @@ void __init adjust_lowmem_bounds(void)

high_memory = __va(arm_lowmem_limit - 1) + 1;

+ if (!memblock_limit)
+ memblock_limit = arm_lowmem_limit;
+
/*
* Round the memblock limit down to a pmd size. This
* helps to ensure that we will allocate memory from the
* last full pmd, which should be mapped.
*/
- if (memblock_limit)
- memblock_limit = round_down(memblock_limit, PMD_SIZE);
- if (!memblock_limit)
- memblock_limit = arm_lowmem_limit;
+ memblock_limit = round_down(memblock_limit, PMD_SIZE);

if (!IS_ENABLED(CONFIG_HIGHMEM) || cache_is_vipt_aliasing()) {
if (memblock_end_of_DRAM() > arm_lowmem_limit) {
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index e6e3491d48a5..f150a4c63efe 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -85,6 +85,18 @@
status = "okay";
pinctrl-0 = <&eth_pins>;
pinctrl-names = "default";
+ phy-handle = <&eth_phy0>;
+
+ mdio {
+ compatible = "snps,dwmac-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eth_phy0: ethernet-phy@0 {
+ reg = <0>;
+ eee-broken-1000t;
+ };
+ };
};

&ir {
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index e517088d635f..de04879bc8b8 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -22,9 +22,9 @@
#define ACPI_MADT_GICC_LENGTH \
(acpi_gbl_FADT.header.revision < 6 ? 76 : 80)

-#define BAD_MADT_GICC_ENTRY(entry, end) \
- (!(entry) || (unsigned long)(entry) + sizeof(*(entry)) > (end) || \
- (entry)->header.length != ACPI_MADT_GICC_LENGTH)
+#define BAD_MADT_GICC_ENTRY(entry, end) \
+ (!(entry) || (entry)->header.length != ACPI_MADT_GICC_LENGTH || \
+ (unsigned long)(entry) + ACPI_MADT_GICC_LENGTH > (end))

/* Basic configuration for ACPI */
#ifdef CONFIG_ACPI
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 28bfe6132eb6..851290d2bfe3 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -155,22 +155,25 @@ lr .req x30 // link register

/*
* Pseudo-ops for PC-relative adr/ldr/str <reg>, <symbol> where
- * <symbol> is within the range +/- 4 GB of the PC.
+ * <symbol> is within the range +/- 4 GB of the PC when running
+ * in core kernel context. In module context, a movz/movk sequence
+ * is used, since modules may be loaded far away from the kernel
+ * when KASLR is in effect.
*/
/*
* @dst: destination register (64 bit wide)
* @sym: name of the symbol
- * @tmp: optional scratch register to be used if <dst> == sp, which
- * is not allowed in an adrp instruction
*/
- .macro adr_l, dst, sym, tmp=
- .ifb \tmp
+ .macro adr_l, dst, sym
+#ifndef MODULE
adrp \dst, \sym
add \dst, \dst, :lo12:\sym
- .else
- adrp \tmp, \sym
- add \dst, \tmp, :lo12:\sym
- .endif
+#else
+ movz \dst, #:abs_g3:\sym
+ movk \dst, #:abs_g2_nc:\sym
+ movk \dst, #:abs_g1_nc:\sym
+ movk \dst, #:abs_g0_nc:\sym
+#endif
.endm

/*
@@ -181,6 +184,7 @@ lr .req x30 // link register
* the address
*/
.macro ldr_l, dst, sym, tmp=
+#ifndef MODULE
.ifb \tmp
adrp \dst, \sym
ldr \dst, [\dst, :lo12:\sym]
@@ -188,6 +192,15 @@ lr .req x30 // link register
adrp \tmp, \sym
ldr \dst, [\tmp, :lo12:\sym]
.endif
+#else
+ .ifb \tmp
+ adr_l \dst, \sym
+ ldr \dst, [\dst]
+ .else
+ adr_l \tmp, \sym
+ ldr \dst, [\tmp]
+ .endif
+#endif
.endm

/*
@@ -197,8 +210,13 @@ lr .req x30 // link register
* while <src> needs to be preserved.
*/
.macro str_l, src, sym, tmp
+#ifndef MODULE
adrp \tmp, \sym
str \src, [\tmp, :lo12:\sym]
+#else
+ adr_l \tmp, \sym
+ str \src, [\tmp]
+#endif
.endm

/*
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 8507703dabe4..a70f7d3361c4 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -934,7 +934,7 @@ static bool have_cpu_die(void)
#ifdef CONFIG_HOTPLUG_CPU
int any_cpu = raw_smp_processor_id();

- if (cpu_ops[any_cpu]->cpu_die)
+ if (cpu_ops[any_cpu] && cpu_ops[any_cpu]->cpu_die)
return true;
#endif
return false;
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index 7791840cf22c..db07793f7b43 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -11,6 +11,7 @@
#include <asm/asm.h>
#include <asm/asmmacro.h>
#include <asm/compiler.h>
+#include <asm/irqflags.h>
#include <asm/regdef.h>
#include <asm/mipsregs.h>
#include <asm/stackframe.h>
@@ -137,6 +138,7 @@ work_pending:
andi t0, a2, _TIF_NEED_RESCHED # a2 is preloaded with TI_FLAGS
beqz t0, work_notifysig
work_resched:
+ TRACE_IRQS_OFF
jal schedule

local_irq_disable # make sure need_resched and
@@ -173,6 +175,7 @@ syscall_exit_work:
beqz t0, work_pending # trace bit set?
local_irq_enable # could let syscall_trace_leave()
# call schedule() instead
+ TRACE_IRQS_ON
move a0, sp
jal syscall_trace_leave
b resume_userspace
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index cf052204eb0a..d1bb506adc10 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -106,8 +106,8 @@ NESTED(kernel_entry, 16, sp) # kernel entry point
beq t0, t1, dtb_found
#endif
li t1, -2
- beq a0, t1, dtb_found
move t2, a1
+ beq a0, t1, dtb_found

li t2, 0
dtb_found:
diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c
index 7cf653e21423..60c4d4599639 100644
--- a/arch/mips/kernel/pm-cps.c
+++ b/arch/mips/kernel/pm-cps.c
@@ -56,7 +56,6 @@ DECLARE_BITMAP(state_support, CPS_PM_STATE_COUNT);
* state. Actually per-core rather than per-CPU.
*/
static DEFINE_PER_CPU_ALIGNED(u32*, ready_count);
-static DEFINE_PER_CPU_ALIGNED(void*, ready_count_alloc);

/* Indicates online CPUs coupled with the current CPU */
static DEFINE_PER_CPU_ALIGNED(cpumask_t, online_coupled);
@@ -642,7 +641,6 @@ static int cps_pm_online_cpu(unsigned int cpu)
{
enum cps_pm_state state;
unsigned core = cpu_data[cpu].core;
- unsigned dlinesz = cpu_data[cpu].dcache.linesz;
void *entry_fn, *core_rc;

for (state = CPS_PM_NC_WAIT; state < CPS_PM_STATE_COUNT; state++) {
@@ -662,16 +660,11 @@ static int cps_pm_online_cpu(unsigned int cpu)
}

if (!per_cpu(ready_count, core)) {
- core_rc = kmalloc(dlinesz * 2, GFP_KERNEL);
+ core_rc = kmalloc(sizeof(u32), GFP_KERNEL);
if (!core_rc) {
pr_err("Failed allocate core %u ready_count\n", core);
return -ENOMEM;
}
- per_cpu(ready_count_alloc, core) = core_rc;
-
- /* Ensure ready_count is aligned to a cacheline boundary */
- core_rc += dlinesz - 1;
- core_rc = (void *)((unsigned long)core_rc & ~(dlinesz - 1));
per_cpu(ready_count, core) = core_rc;
}

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index ec87ef93267b..b0b29cb6f3d8 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -199,6 +199,8 @@ void show_stack(struct task_struct *task, unsigned long *sp)
{
struct pt_regs regs;
mm_segment_t old_fs = get_fs();
+
+ regs.cp0_status = KSU_KERNEL;
if (sp) {
regs.regs[29] = (unsigned long)sp;
regs.regs[31] = 0;
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index f25731627d7f..e5bfbf62827a 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -298,9 +298,17 @@ void eeh_slot_error_detail(struct eeh_pe *pe, int severity)
*
* For pHyp, we have to enable IO for log retrieval. Otherwise,
* 0xFF's is always returned from PCI config space.
+ *
+ * When the @severity is EEH_LOG_PERM, the PE is going to be
+ * removed. Prior to that, the drivers for devices included in
+ * the PE will be closed. The drivers rely on working IO path
+ * to bring the devices to quiet state. Otherwise, PCI traffic
+ * from those devices after they are removed is like to cause
+ * another unexpected EEH error.
*/
if (!(pe->type & EEH_PE_PHB)) {
- if (eeh_has_flag(EEH_ENABLE_IO_FOR_LOG))
+ if (eeh_has_flag(EEH_ENABLE_IO_FOR_LOG) ||
+ severity == EEH_LOG_PERM)
eeh_pci_enable(pe, EEH_OPT_THAW_MMIO);

/*
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index d7697ab802f6..8e136b88cdf4 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -15,7 +15,9 @@
BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
asm volatile( \
" lctlg %1,%2,%0\n" \
- : : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high));\
+ : \
+ : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high) \
+ : "memory"); \
}

#define __ctl_store(array, low, high) { \
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index e1b1ce63a328..5cbf03c14981 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -1021,7 +1021,7 @@ static void __init alloc_one_queue(unsigned long *pa_ptr, unsigned long qmask)
unsigned long order = get_order(size);
unsigned long p;

- p = __get_free_pages(GFP_KERNEL, order);
+ p = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
if (!p) {
prom_printf("SUN4V: Error, cannot allocate queue.\n");
prom_halt();
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 496fa926e1e0..d44fb806bbd7 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2051,6 +2051,73 @@ void sun4v_resum_overflow(struct pt_regs *regs)
atomic_inc(&sun4v_resum_oflow_cnt);
}

+/* Given a set of registers, get the virtual addressi that was being accessed
+ * by the faulting instructions at tpc.
+ */
+static unsigned long sun4v_get_vaddr(struct pt_regs *regs)
+{
+ unsigned int insn;
+
+ if (!copy_from_user(&insn, (void __user *)regs->tpc, 4)) {
+ return compute_effective_address(regs, insn,
+ (insn >> 25) & 0x1f);
+ }
+ return 0;
+}
+
+/* Attempt to handle non-resumable errors generated from userspace.
+ * Returns true if the signal was handled, false otherwise.
+ */
+bool sun4v_nonresum_error_user_handled(struct pt_regs *regs,
+ struct sun4v_error_entry *ent) {
+
+ unsigned int attrs = ent->err_attrs;
+
+ if (attrs & SUN4V_ERR_ATTRS_MEMORY) {
+ unsigned long addr = ent->err_raddr;
+ siginfo_t info;
+
+ if (addr == ~(u64)0) {
+ /* This seems highly unlikely to ever occur */
+ pr_emerg("SUN4V NON-RECOVERABLE ERROR: Memory error detected in unknown location!\n");
+ } else {
+ unsigned long page_cnt = DIV_ROUND_UP(ent->err_size,
+ PAGE_SIZE);
+
+ /* Break the unfortunate news. */
+ pr_emerg("SUN4V NON-RECOVERABLE ERROR: Memory failed at %016lX\n",
+ addr);
+ pr_emerg("SUN4V NON-RECOVERABLE ERROR: Claiming %lu ages.\n",
+ page_cnt);
+
+ while (page_cnt-- > 0) {
+ if (pfn_valid(addr >> PAGE_SHIFT))
+ get_page(pfn_to_page(addr >> PAGE_SHIFT));
+ addr += PAGE_SIZE;
+ }
+ }
+ info.si_signo = SIGKILL;
+ info.si_errno = 0;
+ info.si_trapno = 0;
+ force_sig_info(info.si_signo, &info, current);
+
+ return true;
+ }
+ if (attrs & SUN4V_ERR_ATTRS_PIO) {
+ siginfo_t info;
+
+ info.si_signo = SIGBUS;
+ info.si_code = BUS_ADRERR;
+ info.si_addr = (void __user *)sun4v_get_vaddr(regs);
+ force_sig_info(info.si_signo, &info, current);
+
+ return true;
+ }
+
+ /* Default to doing nothing */
+ return false;
+}
+
/* We run with %pil set to PIL_NORMAL_MAX and PSTATE_IE enabled in %pstate.
* Log the event, clear the first word of the entry, and die.
*/
@@ -2075,6 +2142,12 @@ void sun4v_nonresum_error(struct pt_regs *regs, unsigned long offset)

put_cpu();

+ if (!(regs->tstate & TSTATE_PRIV) &&
+ sun4v_nonresum_error_user_handled(regs, &local_copy)) {
+ /* DON'T PANIC: This userspace error was handled. */
+ return;
+ }
+
#ifdef CONFIG_PCI
/* Check for the special PCI poke sequence. */
if (pci_poke_in_progress && pci_poke_cpu == cpu) {
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index a66854d99ee1..6de58f1bd7ec 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -430,9 +430,6 @@ void choose_random_location(unsigned long input,
{
unsigned long random_addr, min_addr;

- /* By default, keep output position unchanged. */
- *virt_addr = *output;
-
if (cmdline_find_option_bool("nokaslr")) {
warn("KASLR disabled: 'nokaslr' on cmdline.");
return;
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index b3c5a5f030ce..c945acd8fa33 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -338,7 +338,7 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
unsigned long output_len)
{
const unsigned long kernel_total_size = VO__end - VO__text;
- unsigned long virt_addr = (unsigned long)output;
+ unsigned long virt_addr = LOAD_PHYSICAL_ADDR;

/* Retain x86 boot parameters pointer passed from startup_32/64. */
boot_params = rmode;
@@ -397,7 +397,7 @@ asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
#ifndef CONFIG_RELOCATABLE
if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
error("Destination address does not match LOAD_PHYSICAL_ADDR");
- if ((unsigned long)output != virt_addr)
+ if (virt_addr != LOAD_PHYSICAL_ADDR)
error("Destination virtual address changed when not relocatable");
#endif

diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 1c8355eadbd1..766a5211f827 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -81,8 +81,6 @@ static inline void choose_random_location(unsigned long input,
unsigned long output_size,
unsigned long *virt_addr)
{
- /* No change from existing output location. */
- *virt_addr = *output;
}
#endif

diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 38623e219816..9604b2574d6c 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -505,6 +505,10 @@ int x86_pmu_hw_config(struct perf_event *event)

if (event->attr.precise_ip > precise)
return -EOPNOTSUPP;
+
+ /* There's no sense in having PEBS for non sampling events: */
+ if (!is_sampling_event(event))
+ return -EINVAL;
}
/*
* check that PEBS LBR correction does not conflict with
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 3bdb917716b1..f0f197f459b5 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3164,13 +3164,16 @@ static void intel_pmu_cpu_starting(int cpu)

if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) {
for_each_cpu(i, topology_sibling_cpumask(cpu)) {
+ struct cpu_hw_events *sibling;
struct intel_excl_cntrs *c;

- c = per_cpu(cpu_hw_events, i).excl_cntrs;
+ sibling = &per_cpu(cpu_hw_events, i);
+ c = sibling->excl_cntrs;
if (c && c->core_id == core_id) {
cpuc->kfree_on_online[1] = cpuc->excl_cntrs;
cpuc->excl_cntrs = c;
- cpuc->excl_thread_id = 1;
+ if (!sibling->excl_thread_id)
+ cpuc->excl_thread_id = 1;
break;
}
}
@@ -3975,7 +3978,7 @@ __init int intel_pmu_init(void)
x86_pmu.num_counters, INTEL_PMC_MAX_GENERIC);
x86_pmu.num_counters = INTEL_PMC_MAX_GENERIC;
}
- x86_pmu.intel_ctrl = (1 << x86_pmu.num_counters) - 1;
+ x86_pmu.intel_ctrl = (1ULL << x86_pmu.num_counters) - 1;

if (x86_pmu.num_counters_fixed > INTEL_PMC_MAX_FIXED) {
WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!",
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 272427700d48..afe8024e9e95 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -2686,7 +2686,7 @@ static struct intel_uncore_type *hswep_msr_uncores[] = {

void hswep_uncore_cpu_init(void)
{
- int pkg = topology_phys_to_logical_pkg(0);
+ int pkg = boot_cpu_data.logical_proc_id;

if (hswep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
hswep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index e9cd7befcb76..19d14ac23ef9 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -221,6 +221,9 @@ struct x86_emulate_ops {
void (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
void (*set_nmi_mask)(struct x86_emulate_ctxt *ctxt, bool masked);
+
+ unsigned (*get_hflags)(struct x86_emulate_ctxt *ctxt);
+ void (*set_hflags)(struct x86_emulate_ctxt *ctxt, unsigned hflags);
};

typedef u32 __attribute__((vector_size(16))) sse128_t;
@@ -290,7 +293,6 @@ struct x86_emulate_ctxt {

/* interruptibility state, as a result of execution of STI or MOV SS */
int interruptibility;
- int emul_flags;

bool perm_ok; /* do not check permissions if true */
bool ud; /* inject an #UD if host doesn't support insn */
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index eea88fe5d969..6e57edf33d75 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -694,6 +694,7 @@ unsigned long native_calibrate_tsc(void)
crystal_khz = 24000; /* 24.0 MHz */
break;
case INTEL_FAM6_SKYLAKE_X:
+ case INTEL_FAM6_ATOM_DENVERTON:
crystal_khz = 25000; /* 25.0 MHz */
break;
case INTEL_FAM6_ATOM_GOLDMONT:
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 9f676adcdfc2..de36660751b5 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2543,7 +2543,7 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
u64 smbase;
int ret;

- if ((ctxt->emul_flags & X86EMUL_SMM_MASK) == 0)
+ if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_MASK) == 0)
return emulate_ud(ctxt);

/*
@@ -2592,11 +2592,11 @@ static int em_rsm(struct x86_emulate_ctxt *ctxt)
return X86EMUL_UNHANDLEABLE;
}

- if ((ctxt->emul_flags & X86EMUL_SMM_INSIDE_NMI_MASK) == 0)
+ if ((ctxt->ops->get_hflags(ctxt) & X86EMUL_SMM_INSIDE_NMI_MASK) == 0)
ctxt->ops->set_nmi_mask(ctxt, false);

- ctxt->emul_flags &= ~X86EMUL_SMM_INSIDE_NMI_MASK;
- ctxt->emul_flags &= ~X86EMUL_SMM_MASK;
+ ctxt->ops->set_hflags(ctxt, ctxt->ops->get_hflags(ctxt) &
+ ~(X86EMUL_SMM_INSIDE_NMI_MASK | X86EMUL_SMM_MASK));
return X86EMUL_CONTINUE;
}

@@ -5312,6 +5312,7 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
const struct x86_emulate_ops *ops = ctxt->ops;
int rc = X86EMUL_CONTINUE;
int saved_dst_type = ctxt->dst.type;
+ unsigned emul_flags;

ctxt->mem_read.pos = 0;

@@ -5326,6 +5327,7 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
goto done;
}

+ emul_flags = ctxt->ops->get_hflags(ctxt);
if (unlikely(ctxt->d &
(No64|Undefined|Sse|Mmx|Intercept|CheckPerm|Priv|Prot|String))) {
if ((ctxt->mode == X86EMUL_MODE_PROT64 && (ctxt->d & No64)) ||
@@ -5359,7 +5361,7 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
fetch_possible_mmx_operand(ctxt, &ctxt->dst);
}

- if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && ctxt->intercept) {
+ if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && ctxt->intercept) {
rc = emulator_check_intercept(ctxt, ctxt->intercept,
X86_ICPT_PRE_EXCEPT);
if (rc != X86EMUL_CONTINUE)
@@ -5388,7 +5390,7 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
goto done;
}

- if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
+ if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
rc = emulator_check_intercept(ctxt, ctxt->intercept,
X86_ICPT_POST_EXCEPT);
if (rc != X86EMUL_CONTINUE)
@@ -5442,7 +5444,7 @@ int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)

special_insn:

- if (unlikely(ctxt->emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
+ if (unlikely(emul_flags & X86EMUL_GUEST_MASK) && (ctxt->d & Intercept)) {
rc = emulator_check_intercept(ctxt, ctxt->intercept,
X86_ICPT_POST_MEMACCESS);
if (rc != X86EMUL_CONTINUE)
diff --git a/arch/x86/kvm/pmu_intel.c b/arch/x86/kvm/pmu_intel.c
index 9d4a8504a95a..5ab4a364348e 100644
--- a/arch/x86/kvm/pmu_intel.c
+++ b/arch/x86/kvm/pmu_intel.c
@@ -294,7 +294,7 @@ static void intel_pmu_refresh(struct kvm_vcpu *vcpu)
((u64)1 << edx.split.bit_width_fixed) - 1;
}

- pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) |
+ pmu->global_ctrl = ((1ull << pmu->nr_arch_gp_counters) - 1) |
(((1ull << pmu->nr_arch_fixed_counters) - 1) << INTEL_PMC_IDX_FIXED);
pmu->global_ctrl_mask = ~pmu->global_ctrl;

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 89b98e07211f..04e6bbbd8736 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2455,7 +2455,7 @@ static int nested_vmx_check_exception(struct kvm_vcpu *vcpu, unsigned nr)
if (!(vmcs12->exception_bitmap & (1u << nr)))
return 0;

- nested_vmx_vmexit(vcpu, to_vmx(vcpu)->exit_reason,
+ nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
vmcs_read32(VM_EXIT_INTR_INFO),
vmcs_readl(EXIT_QUALIFICATION));
return 1;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 62cde4f67c72..3dbcb09c19cf 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4999,6 +4999,8 @@ static bool emulator_get_segment(struct x86_emulate_ctxt *ctxt, u16 *selector,

if (var.unusable) {
memset(desc, 0, sizeof(*desc));
+ if (base3)
+ *base3 = 0;
return false;
}

@@ -5154,6 +5156,16 @@ static void emulator_set_nmi_mask(struct x86_emulate_ctxt *ctxt, bool masked)
kvm_x86_ops->set_nmi_mask(emul_to_vcpu(ctxt), masked);
}

+static unsigned emulator_get_hflags(struct x86_emulate_ctxt *ctxt)
+{
+ return emul_to_vcpu(ctxt)->arch.hflags;
+}
+
+static void emulator_set_hflags(struct x86_emulate_ctxt *ctxt, unsigned emul_flags)
+{
+ kvm_set_hflags(emul_to_vcpu(ctxt), emul_flags);
+}
+
static const struct x86_emulate_ops emulate_ops = {
.read_gpr = emulator_read_gpr,
.write_gpr = emulator_write_gpr,
@@ -5193,6 +5205,8 @@ static const struct x86_emulate_ops emulate_ops = {
.intercept = emulator_intercept,
.get_cpuid = emulator_get_cpuid,
.set_nmi_mask = emulator_set_nmi_mask,
+ .get_hflags = emulator_get_hflags,
+ .set_hflags = emulator_set_hflags,
};

static void toggle_interruptibility(struct kvm_vcpu *vcpu, u32 mask)
@@ -5245,7 +5259,6 @@ static void init_emulate_ctxt(struct kvm_vcpu *vcpu)
BUILD_BUG_ON(HF_GUEST_MASK != X86EMUL_GUEST_MASK);
BUILD_BUG_ON(HF_SMM_MASK != X86EMUL_SMM_MASK);
BUILD_BUG_ON(HF_SMM_INSIDE_NMI_MASK != X86EMUL_SMM_INSIDE_NMI_MASK);
- ctxt->emul_flags = vcpu->arch.hflags;

init_decode_cache(ctxt);
vcpu->arch.emulate_regs_need_sync_from_vcpu = false;
@@ -5636,8 +5649,6 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu,
unsigned long rflags = kvm_x86_ops->get_rflags(vcpu);
toggle_interruptibility(vcpu, ctxt->interruptibility);
vcpu->arch.emulate_regs_need_sync_to_vcpu = false;
- if (vcpu->arch.hflags != ctxt->emul_flags)
- kvm_set_hflags(vcpu, ctxt->emul_flags);
kvm_rip_write(vcpu, ctxt->eip);
if (r == EMULATE_DONE)
kvm_vcpu_check_singlestep(vcpu, rflags, &r);
@@ -6111,7 +6122,8 @@ static int emulator_fix_hypercall(struct x86_emulate_ctxt *ctxt)

kvm_x86_ops->patch_hypercall(vcpu, instruction);

- return emulator_write_emulated(ctxt, rip, instruction, 3, NULL);
+ return emulator_write_emulated(ctxt, rip, instruction, 3,
+ &ctxt->exception);
}

static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 14b9dd71d9e8..9a324fc8bed8 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -94,10 +94,10 @@ __setup("noexec32=", nonx32_setup);
*/
void sync_global_pgds(unsigned long start, unsigned long end, int removed)
{
- unsigned long address;
+ unsigned long addr;

- for (address = start; address <= end; address += PGDIR_SIZE) {
- const pgd_t *pgd_ref = pgd_offset_k(address);
+ for (addr = start; addr <= end; addr = ALIGN(addr + 1, PGDIR_SIZE)) {
+ const pgd_t *pgd_ref = pgd_offset_k(addr);
struct page *page;

/*
@@ -113,7 +113,7 @@ void sync_global_pgds(unsigned long start, unsigned long end, int removed)
pgd_t *pgd;
spinlock_t *pgt_lock;

- pgd = (pgd_t *)page_address(page) + pgd_index(address);
+ pgd = (pgd_t *)page_address(page) + pgd_index(addr);
/* the pgt_lock only for Xen */
pgt_lock = &pgd_page_get_mm(page)->page_table_lock;
spin_lock(pgt_lock);
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index e4f800999b32..a75103e7f963 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -293,7 +293,7 @@ siginfo_t *mpx_generate_siginfo(struct pt_regs *regs)
* We were not able to extract an address from the instruction,
* probably because there was something invalid in it.
*/
- if (info->si_addr == (void *)-1) {
+ if (info->si_addr == (void __user *)-1) {
err = -EINVAL;
goto err_out;
}
@@ -525,15 +525,7 @@ int mpx_handle_bd_fault(void)
if (!kernel_managing_mpx_tables(current->mm))
return -EINVAL;

- if (do_mpx_bt_fault()) {
- force_sig(SIGSEGV, current);
- /*
- * The force_sig() is essentially "handling" this
- * exception, so we do not pass up the error
- * from do_mpx_bt_fault().
- */
- }
- return 0;
+ return do_mpx_bt_fault();
}

/*
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index a7655f6caf7d..75fb01109f94 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -263,8 +263,6 @@ void native_flush_tlb_others(const struct cpumask *cpumask,
{
struct flush_tlb_info info;

- if (end == 0)
- end = start + PAGE_SIZE;
info.flush_mm = mm;
info.flush_start = start;
info.flush_end = end;
@@ -393,7 +391,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long start)
}

if (cpumask_any_but(mm_cpumask(mm), smp_processor_id()) < nr_cpu_ids)
- flush_tlb_others(mm_cpumask(mm), mm, start, 0UL);
+ flush_tlb_others(mm_cpumask(mm), mm, start, start + PAGE_SIZE);

preempt_enable();
}
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index c42202d63567..d6eaaa25d1cc 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -609,8 +609,6 @@ int xen_blkif_schedule(void *arg)
unsigned long timeout;
int ret;

- xen_blkif_get(blkif);
-
set_freezable();
while (!kthread_should_stop()) {
if (try_to_freeze())
@@ -665,7 +663,6 @@ int xen_blkif_schedule(void *arg)
print_stats(ring);

ring->xenblkd = NULL;
- xen_blkif_put(blkif);

return 0;
}
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 9b69fe410c08..5dfe6e8af140 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -255,7 +255,6 @@ static int xen_blkif_disconnect(struct xen_blkif *blkif)
if (ring->xenblkd) {
kthread_stop(ring->xenblkd);
wake_up(&ring->shutdown_wq);
- ring->xenblkd = NULL;
}

/* The above kthread_stop() guarantees that at this point we
@@ -316,8 +315,10 @@ static int xen_blkif_disconnect(struct xen_blkif *blkif)
static void xen_blkif_free(struct xen_blkif *blkif)
{

- xen_blkif_disconnect(blkif);
+ WARN_ON(xen_blkif_disconnect(blkif));
xen_vbd_free(&blkif->vbd);
+ kfree(blkif->be->mode);
+ kfree(blkif->be);

/* Make sure everything is drained before shutting down */
kmem_cache_free(xen_blkif_cachep, blkif);
@@ -512,8 +513,6 @@ static int xen_blkbk_remove(struct xenbus_device *dev)

/* Put the reference we set in xen_blkif_alloc(). */
xen_blkif_put(be->blkif);
- kfree(be->mode);
- kfree(be);
return 0;
}

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 471a301d63e3..8f890c1aca57 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1870,7 +1870,7 @@ static void config_work_handler(struct work_struct *work)
{
struct ports_device *portdev;

- portdev = container_of(work, struct ports_device, control_work);
+ portdev = container_of(work, struct ports_device, config_work);
if (!use_multiport(portdev)) {
struct virtio_device *vdev;
struct port *port;
diff --git a/drivers/clk/clk-scpi.c b/drivers/clk/clk-scpi.c
index 2a3e9d8e88b0..96d37175d0ad 100644
--- a/drivers/clk/clk-scpi.c
+++ b/drivers/clk/clk-scpi.c
@@ -290,13 +290,15 @@ static int scpi_clocks_probe(struct platform_device *pdev)
of_node_put(child);
return ret;
}
- }
- /* Add the virtual cpufreq device */
- cpufreq_dev = platform_device_register_simple("scpi-cpufreq",
- -1, NULL, 0);
- if (IS_ERR(cpufreq_dev))
- pr_warn("unable to register cpufreq device");

+ if (match->data != &scpi_dvfs_ops)
+ continue;
+ /* Add the virtual cpufreq device if it's DVFS clock provider */
+ cpufreq_dev = platform_device_register_simple("scpi-cpufreq",
+ -1, NULL, 0);
+ if (IS_ERR(cpufreq_dev))
+ pr_warn("unable to register cpufreq device");
+ }
return 0;
}

diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index d6d425773fa4..5b2db3c6568f 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -400,7 +400,6 @@ static int s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
rate = clk_get_rate(s3c_freq->hclk);
if (rate < 133 * 1000 * 1000) {
pr_err("cpufreq: HCLK not at 133MHz\n");
- clk_put(s3c_freq->hclk);
ret = -EINVAL;
goto err_armclk;
}
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 92159313361b..f2bb5122d2c2 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -707,7 +707,8 @@ static irqreturn_t lineevent_irq_thread(int irq, void *p)

ge.timestamp = ktime_get_real_ns();

- if (le->eflags & GPIOEVENT_REQUEST_BOTH_EDGES) {
+ if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
+ && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
int level = gpiod_get_value_cansleep(le->desc);

if (level)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 82dc8d20e28a..bfb4b91869e7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -83,6 +83,13 @@ int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
}
break;
}
+
+ if (!(*out_ring && (*out_ring)->adev)) {
+ DRM_ERROR("Ring %d is not initialized on IP %d\n",
+ ring, ip_type);
+ return -EINVAL;
+ }
+
return 0;
}

diff --git a/drivers/gpu/drm/amd/amdgpu/si_dpm.c b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
index 6f3c89178b6a..4cb347e88cf0 100644
--- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
@@ -64,6 +64,7 @@ MODULE_FIRMWARE("radeon/oland_smc.bin");
MODULE_FIRMWARE("radeon/oland_k_smc.bin");
MODULE_FIRMWARE("radeon/hainan_smc.bin");
MODULE_FIRMWARE("radeon/hainan_k_smc.bin");
+MODULE_FIRMWARE("radeon/banks_k_2_smc.bin");

union power_info {
struct _ATOM_POWERPLAY_INFO info;
@@ -7721,10 +7722,11 @@ static int si_dpm_init_microcode(struct amdgpu_device *adev)
((adev->pdev->device == 0x6660) ||
(adev->pdev->device == 0x6663) ||
(adev->pdev->device == 0x6665) ||
- (adev->pdev->device == 0x6667))) ||
- ((adev->pdev->revision == 0xc3) &&
- (adev->pdev->device == 0x6665)))
+ (adev->pdev->device == 0x6667))))
chip_name = "hainan_k";
+ else if ((adev->pdev->revision == 0xc3) &&
+ (adev->pdev->device == 0x6665))
+ chip_name = "banks_k_2";
else
chip_name = "hainan";
break;
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
index 6feed726e299..50f0cf2788b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
@@ -43,9 +43,13 @@

#define GRBM_GFX_INDEX__VCE_INSTANCE__SHIFT 0x04
#define GRBM_GFX_INDEX__VCE_INSTANCE_MASK 0x10
+#define GRBM_GFX_INDEX__VCE_ALL_PIPE 0x07
+
#define mmVCE_LMI_VCPU_CACHE_40BIT_BAR0 0x8616
#define mmVCE_LMI_VCPU_CACHE_40BIT_BAR1 0x8617
#define mmVCE_LMI_VCPU_CACHE_40BIT_BAR2 0x8618
+#define mmGRBM_GFX_INDEX_DEFAULT 0xE0000000
+
#define VCE_STATUS_VCPU_REPORT_FW_LOADED_MASK 0x02

#define VCE_V3_0_FW_SIZE (384 * 1024)
@@ -54,6 +58,9 @@

#define FW_52_8_3 ((52 << 24) | (8 << 16) | (3 << 8))

+#define GET_VCE_INSTANCE(i) ((i) << GRBM_GFX_INDEX__VCE_INSTANCE__SHIFT \
+ | GRBM_GFX_INDEX__VCE_ALL_PIPE)
+
static void vce_v3_0_mc_resume(struct amdgpu_device *adev, int idx);
static void vce_v3_0_set_ring_funcs(struct amdgpu_device *adev);
static void vce_v3_0_set_irq_funcs(struct amdgpu_device *adev);
@@ -249,7 +256,7 @@ static int vce_v3_0_start(struct amdgpu_device *adev)
if (adev->vce.harvest_config & (1 << idx))
continue;

- WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, idx);
+ WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(idx));
vce_v3_0_mc_resume(adev, idx);
WREG32_FIELD(VCE_STATUS, JOB_BUSY, 1);

@@ -273,7 +280,7 @@ static int vce_v3_0_start(struct amdgpu_device *adev)
}
}

- WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, 0);
+ WREG32(mmGRBM_GFX_INDEX, mmGRBM_GFX_INDEX_DEFAULT);
mutex_unlock(&adev->grbm_idx_mutex);

return 0;
@@ -288,7 +295,7 @@ static int vce_v3_0_stop(struct amdgpu_device *adev)
if (adev->vce.harvest_config & (1 << idx))
continue;

- WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, idx);
+ WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(idx));

if (adev->asic_type >= CHIP_STONEY)
WREG32_P(mmVCE_VCPU_CNTL, 0, ~0x200001);
@@ -306,7 +313,7 @@ static int vce_v3_0_stop(struct amdgpu_device *adev)
vce_v3_0_set_vce_sw_clock_gating(adev, false);
}

- WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, 0);
+ WREG32(mmGRBM_GFX_INDEX, mmGRBM_GFX_INDEX_DEFAULT);
mutex_unlock(&adev->grbm_idx_mutex);

return 0;
@@ -586,17 +593,17 @@ static bool vce_v3_0_check_soft_reset(void *handle)
* VCE team suggest use bit 3--bit 6 for busy status check
*/
mutex_lock(&adev->grbm_idx_mutex);
- WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0);
+ WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(0));
if (RREG32(mmVCE_STATUS) & AMDGPU_VCE_STATUS_BUSY_MASK) {
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE0, 1);
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE1, 1);
}
- WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0x10);
+ WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(1));
if (RREG32(mmVCE_STATUS) & AMDGPU_VCE_STATUS_BUSY_MASK) {
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE0, 1);
srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, SRBM_SOFT_RESET, SOFT_RESET_VCE1, 1);
}
- WREG32_FIELD(GRBM_GFX_INDEX, INSTANCE_INDEX, 0);
+ WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(0));
mutex_unlock(&adev->grbm_idx_mutex);

if (srbm_soft_reset) {
@@ -734,7 +741,7 @@ static int vce_v3_0_set_clockgating_state(void *handle,
if (adev->vce.harvest_config & (1 << i))
continue;

- WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, i);
+ WREG32(mmGRBM_GFX_INDEX, GET_VCE_INSTANCE(i));

if (enable) {
/* initialize VCE_CLOCK_GATING_A: Clock ON/OFF delay */
@@ -753,7 +760,7 @@ static int vce_v3_0_set_clockgating_state(void *handle,
vce_v3_0_set_vce_sw_clock_gating(adev, enable);
}

- WREG32_FIELD(GRBM_GFX_INDEX, VCE_INSTANCE, 0);
+ WREG32(mmGRBM_GFX_INDEX, mmGRBM_GFX_INDEX_DEFAULT);
mutex_unlock(&adev->grbm_idx_mutex);

return 0;
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
index 2028980f1ed4..5b261c1dcc9f 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_clockpowergating.c
@@ -200,7 +200,7 @@ int cz_dpm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate)
cgs_set_clockgating_state(
hwmgr->device,
AMD_IP_BLOCK_TYPE_VCE,
- AMD_CG_STATE_UNGATE);
+ AMD_CG_STATE_GATE);
cgs_set_powergating_state(
hwmgr->device,
AMD_IP_BLOCK_TYPE_VCE,
@@ -218,7 +218,7 @@ int cz_dpm_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate)
cgs_set_clockgating_state(
hwmgr->device,
AMD_IP_BLOCK_TYPE_VCE,
- AMD_PG_STATE_GATE);
+ AMD_PG_STATE_UNGATE);
cz_dpm_update_vce_dpm(hwmgr);
cz_enable_disable_vce_dpm(hwmgr, true);
return 0;
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
index 960424913496..189ec94c6ff9 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c
@@ -1402,14 +1402,22 @@ int cz_dpm_update_vce_dpm(struct pp_hwmgr *hwmgr)
cz_hwmgr->vce_dpm.hard_min_clk,
PPSMC_MSG_SetEclkHardMin));
} else {
- /*EPR# 419220 -HW limitation to to */
- cz_hwmgr->vce_dpm.hard_min_clk = hwmgr->vce_arbiter.ecclk;
- smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
- PPSMC_MSG_SetEclkHardMin,
- cz_get_eclk_level(hwmgr,
- cz_hwmgr->vce_dpm.hard_min_clk,
- PPSMC_MSG_SetEclkHardMin));
-
+ /*Program HardMin based on the vce_arbiter.ecclk */
+ if (hwmgr->vce_arbiter.ecclk == 0) {
+ smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+ PPSMC_MSG_SetEclkHardMin, 0);
+ /* disable ECLK DPM 0. Otherwise VCE could hang if
+ * switching SCLK from DPM 0 to 6/7 */
+ smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+ PPSMC_MSG_SetEclkSoftMin, 1);
+ } else {
+ cz_hwmgr->vce_dpm.hard_min_clk = hwmgr->vce_arbiter.ecclk;
+ smum_send_msg_to_smc_with_parameter(hwmgr->smumgr,
+ PPSMC_MSG_SetEclkHardMin,
+ cz_get_eclk_level(hwmgr,
+ cz_hwmgr->vce_dpm.hard_min_clk,
+ PPSMC_MSG_SetEclkHardMin));
+ }
}
return 0;
}
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 7abda94fc2cf..3bedcf7ddd2a 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -113,7 +113,11 @@ struct ast_private {
struct ttm_bo_kmap_obj cache_kmap;
int next_cursor;
bool support_wide_screen;
- bool DisableP2A;
+ enum {
+ ast_use_p2a,
+ ast_use_dt,
+ ast_use_defaults
+ } config_mode;

enum ast_tx_chip tx_chip_type;
u8 dp501_maxclk;
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 533e762d036d..fb9976254224 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -62,13 +62,84 @@ uint8_t ast_get_index_reg_mask(struct ast_private *ast,
return ret;
}

+static void ast_detect_config_mode(struct drm_device *dev, u32 *scu_rev)
+{
+ struct device_node *np = dev->pdev->dev.of_node;
+ struct ast_private *ast = dev->dev_private;
+ uint32_t data, jregd0, jregd1;
+
+ /* Defaults */
+ ast->config_mode = ast_use_defaults;
+ *scu_rev = 0xffffffff;
+
+ /* Check if we have device-tree properties */
+ if (np && !of_property_read_u32(np, "aspeed,scu-revision-id",
+ scu_rev)) {
+ /* We do, disable P2A access */
+ ast->config_mode = ast_use_dt;
+ DRM_INFO("Using device-tree for configuration\n");
+ return;
+ }
+
+ /* Not all families have a P2A bridge */
+ if (dev->pdev->device != PCI_CHIP_AST2000)
+ return;
+
+ /*
+ * The BMC will set SCU 0x40 D[12] to 1 if the P2 bridge
+ * is disabled. We force using P2A if VGA only mode bit
+ * is set D[7]
+ */
+ jregd0 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff);
+ jregd1 = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
+ if (!(jregd0 & 0x80) || !(jregd1 & 0x10)) {
+ /* Double check it's actually working */
+ data = ast_read32(ast, 0xf004);
+ if (data != 0xFFFFFFFF) {
+ /* P2A works, grab silicon revision */
+ ast->config_mode = ast_use_p2a;
+
+ DRM_INFO("Using P2A bridge for configuration\n");
+
+ /* Read SCU7c (silicon revision register) */
+ ast_write32(ast, 0xf004, 0x1e6e0000);
+ ast_write32(ast, 0xf000, 0x1);
+ *scu_rev = ast_read32(ast, 0x1207c);
+ return;
+ }
+ }
+
+ /* We have a P2A bridge but it's disabled */
+ DRM_INFO("P2A bridge disabled, using default configuration\n");
+}

static int ast_detect_chip(struct drm_device *dev, bool *need_post)
{
struct ast_private *ast = dev->dev_private;
- uint32_t data, jreg;
+ uint32_t jreg, scu_rev;
+
+ /*
+ * If VGA isn't enabled, we need to enable now or subsequent
+ * access to the scratch registers will fail. We also inform
+ * our caller that it needs to POST the chip
+ * (Assumption: VGA not enabled -> need to POST)
+ */
+ if (!ast_is_vga_enabled(dev)) {
+ ast_enable_vga(dev);
+ DRM_INFO("VGA not enabled on entry, requesting chip POST\n");
+ *need_post = true;
+ } else
+ *need_post = false;
+
+
+ /* Enable extended register access */
+ ast_enable_mmio(dev);
ast_open_key(ast);

+ /* Find out whether P2A works or whether to use device-tree */
+ ast_detect_config_mode(dev, &scu_rev);
+
+ /* Identify chipset */
if (dev->pdev->device == PCI_CHIP_AST1180) {
ast->chip = AST1100;
DRM_INFO("AST 1180 detected\n");
@@ -80,12 +151,7 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
ast->chip = AST2300;
DRM_INFO("AST 2300 detected\n");
} else if (dev->pdev->revision >= 0x10) {
- uint32_t data;
- ast_write32(ast, 0xf004, 0x1e6e0000);
- ast_write32(ast, 0xf000, 0x1);
-
- data = ast_read32(ast, 0x1207c);
- switch (data & 0x0300) {
+ switch (scu_rev & 0x0300) {
case 0x0200:
ast->chip = AST1100;
DRM_INFO("AST 1100 detected\n");
@@ -110,26 +176,6 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
}
}

- /*
- * If VGA isn't enabled, we need to enable now or subsequent
- * access to the scratch registers will fail. We also inform
- * our caller that it needs to POST the chip
- * (Assumption: VGA not enabled -> need to POST)
- */
- if (!ast_is_vga_enabled(dev)) {
- ast_enable_vga(dev);
- ast_enable_mmio(dev);
- DRM_INFO("VGA not enabled on entry, requesting chip POST\n");
- *need_post = true;
- } else
- *need_post = false;
-
- /* Check P2A Access */
- ast->DisableP2A = true;
- data = ast_read32(ast, 0xf004);
- if (data != 0xFFFFFFFF)
- ast->DisableP2A = false;
-
/* Check if we support wide screen */
switch (ast->chip) {
case AST1180:
@@ -146,17 +192,12 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)
ast->support_wide_screen = true;
else {
ast->support_wide_screen = false;
- if (ast->DisableP2A == false) {
- /* Read SCU7c (silicon revision register) */
- ast_write32(ast, 0xf004, 0x1e6e0000);
- ast_write32(ast, 0xf000, 0x1);
- data = ast_read32(ast, 0x1207c);
- data &= 0x300;
- if (ast->chip == AST2300 && data == 0x0) /* ast1300 */
- ast->support_wide_screen = true;
- if (ast->chip == AST2400 && data == 0x100) /* ast1400 */
- ast->support_wide_screen = true;
- }
+ if (ast->chip == AST2300 &&
+ (scu_rev & 0x300) == 0x0) /* ast1300 */
+ ast->support_wide_screen = true;
+ if (ast->chip == AST2400 &&
+ (scu_rev & 0x300) == 0x100) /* ast1400 */
+ ast->support_wide_screen = true;
}
break;
}
@@ -220,85 +261,102 @@ static int ast_detect_chip(struct drm_device *dev, bool *need_post)

static int ast_get_dram_info(struct drm_device *dev)
{
+ struct device_node *np = dev->pdev->dev.of_node;
struct ast_private *ast = dev->dev_private;
- uint32_t data, data2;
- uint32_t denum, num, div, ref_pll;
+ uint32_t mcr_cfg, mcr_scu_mpll, mcr_scu_strap;
+ uint32_t denum, num, div, ref_pll, dsel;

- if (ast->DisableP2A)
- {
+ switch (ast->config_mode) {
+ case ast_use_dt:
+ /*
+ * If some properties are missing, use reasonable
+ * defaults for AST2400
+ */
+ if (of_property_read_u32(np, "aspeed,mcr-configuration",
+ &mcr_cfg))
+ mcr_cfg = 0x00000577;
+ if (of_property_read_u32(np, "aspeed,mcr-scu-mpll",
+ &mcr_scu_mpll))
+ mcr_scu_mpll = 0x000050C0;
+ if (of_property_read_u32(np, "aspeed,mcr-scu-strap",
+ &mcr_scu_strap))
+ mcr_scu_strap = 0;
+ break;
+ case ast_use_p2a:
+ ast_write32(ast, 0xf004, 0x1e6e0000);
+ ast_write32(ast, 0xf000, 0x1);
+ mcr_cfg = ast_read32(ast, 0x10004);
+ mcr_scu_mpll = ast_read32(ast, 0x10120);
+ mcr_scu_strap = ast_read32(ast, 0x10170);
+ break;
+ case ast_use_defaults:
+ default:
ast->dram_bus_width = 16;
ast->dram_type = AST_DRAM_1Gx16;
ast->mclk = 396;
+ return 0;
}
- else
- {
- ast_write32(ast, 0xf004, 0x1e6e0000);
- ast_write32(ast, 0xf000, 0x1);
- data = ast_read32(ast, 0x10004);
-
- if (data & 0x40)
- ast->dram_bus_width = 16;
- else
- ast->dram_bus_width = 32;

- if (ast->chip == AST2300 || ast->chip == AST2400) {
- switch (data & 0x03) {
- case 0:
- ast->dram_type = AST_DRAM_512Mx16;
- break;
- default:
- case 1:
- ast->dram_type = AST_DRAM_1Gx16;
- break;
- case 2:
- ast->dram_type = AST_DRAM_2Gx16;
- break;
- case 3:
- ast->dram_type = AST_DRAM_4Gx16;
- break;
- }
- } else {
- switch (data & 0x0c) {
- case 0:
- case 4:
- ast->dram_type = AST_DRAM_512Mx16;
- break;
- case 8:
- if (data & 0x40)
- ast->dram_type = AST_DRAM_1Gx16;
- else
- ast->dram_type = AST_DRAM_512Mx32;
- break;
- case 0xc:
- ast->dram_type = AST_DRAM_1Gx32;
- break;
- }
- }
+ if (mcr_cfg & 0x40)
+ ast->dram_bus_width = 16;
+ else
+ ast->dram_bus_width = 32;

- data = ast_read32(ast, 0x10120);
- data2 = ast_read32(ast, 0x10170);
- if (data2 & 0x2000)
- ref_pll = 14318;
- else
- ref_pll = 12000;
-
- denum = data & 0x1f;
- num = (data & 0x3fe0) >> 5;
- data = (data & 0xc000) >> 14;
- switch (data) {
- case 3:
- div = 0x4;
+ if (ast->chip == AST2300 || ast->chip == AST2400) {
+ switch (mcr_cfg & 0x03) {
+ case 0:
+ ast->dram_type = AST_DRAM_512Mx16;
break;
- case 2:
+ default:
case 1:
- div = 0x2;
+ ast->dram_type = AST_DRAM_1Gx16;
break;
- default:
- div = 0x1;
+ case 2:
+ ast->dram_type = AST_DRAM_2Gx16;
+ break;
+ case 3:
+ ast->dram_type = AST_DRAM_4Gx16;
+ break;
+ }
+ } else {
+ switch (mcr_cfg & 0x0c) {
+ case 0:
+ case 4:
+ ast->dram_type = AST_DRAM_512Mx16;
+ break;
+ case 8:
+ if (mcr_cfg & 0x40)
+ ast->dram_type = AST_DRAM_1Gx16;
+ else
+ ast->dram_type = AST_DRAM_512Mx32;
+ break;
+ case 0xc:
+ ast->dram_type = AST_DRAM_1Gx32;
break;
}
- ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
}
+
+ if (mcr_scu_strap & 0x2000)
+ ref_pll = 14318;
+ else
+ ref_pll = 12000;
+
+ denum = mcr_scu_mpll & 0x1f;
+ num = (mcr_scu_mpll & 0x3fe0) >> 5;
+ dsel = (mcr_scu_mpll & 0xc000) >> 14;
+ switch (dsel) {
+ case 3:
+ div = 0x4;
+ break;
+ case 2:
+ case 1:
+ div = 0x2;
+ break;
+ default:
+ div = 0x1;
+ break;
+ }
+ ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000);
return 0;
}

diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c
index 270e8fb2803f..c7c58becb25d 100644
--- a/drivers/gpu/drm/ast/ast_post.c
+++ b/drivers/gpu/drm/ast/ast_post.c
@@ -375,17 +375,14 @@ void ast_post_gpu(struct drm_device *dev)
ast_enable_mmio(dev);
ast_set_def_ext_reg(dev);

- if (ast->DisableP2A == false)
- {
+ if (ast->config_mode == ast_use_p2a) {
if (ast->chip == AST2300 || ast->chip == AST2400)
ast_init_dram_2300(dev);
else
ast_init_dram_reg(dev);

ast_init_3rdtx(dev);
- }
- else
- {
+ } else {
if (ast->tx_chip_type != AST_TX_NONE)
ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xcf, 0x80); /* Enable DVO */
}
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
index 169ac96e8f08..fe0e85b41310 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
@@ -116,9 +116,14 @@ static int etnaviv_iommu_find_iova(struct etnaviv_iommu *mmu,
struct list_head list;
bool found;

+ /*
+ * XXX: The DRM_MM_SEARCH_BELOW is really a hack to trick
+ * drm_mm into giving out a low IOVA after address space
+ * rollover. This needs a proper fix.
+ */
ret = drm_mm_insert_node_in_range(&mmu->mm, node,
size, 0, mmu->last_iova, ~0UL,
- DRM_MM_SEARCH_DEFAULT);
+ mmu->last_iova ? DRM_MM_SEARCH_DEFAULT : DRM_MM_SEARCH_BELOW);

if (ret != -ENOSPC)
break;
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 3333e8a45933..b75d809c292e 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -115,6 +115,8 @@ MODULE_FIRMWARE("radeon/hainan_rlc.bin");
MODULE_FIRMWARE("radeon/hainan_smc.bin");
MODULE_FIRMWARE("radeon/hainan_k_smc.bin");

+MODULE_FIRMWARE("radeon/si58_mc.bin");
+
static u32 si_get_cu_active_bitmap(struct radeon_device *rdev, u32 se, u32 sh);
static void si_pcie_gen3_enable(struct radeon_device *rdev);
static void si_program_aspm(struct radeon_device *rdev);
@@ -1650,6 +1652,7 @@ static int si_init_microcode(struct radeon_device *rdev)
int err;
int new_fw = 0;
bool new_smc = false;
+ bool si58_fw = false;

DRM_DEBUG("\n");

@@ -1742,6 +1745,10 @@ static int si_init_microcode(struct radeon_device *rdev)
default: BUG();
}

+ /* this memory configuration requires special firmware */
+ if (((RREG32(MC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
+ si58_fw = true;
+
DRM_INFO("Loading %s Microcode\n", new_chip_name);

snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", new_chip_name);
@@ -1845,7 +1852,10 @@ static int si_init_microcode(struct radeon_device *rdev)
}
}

- snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", new_chip_name);
+ if (si58_fw)
+ snprintf(fw_name, sizeof(fw_name), "radeon/si58_mc.bin");
+ else
+ snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", new_chip_name);
err = request_firmware(&rdev->mc_fw, fw_name, rdev->dev);
if (err) {
snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc2.bin", chip_name);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
index 13db8a2851ed..1f013d45c9e9 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cmdbuf_res.c
@@ -321,6 +321,7 @@ void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man)
list_for_each_entry_safe(entry, next, &man->list, head)
vmw_cmdbuf_res_free(man, entry);

+ drm_ht_remove(&man->resources);
kfree(man);
}

diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index b1bce804fe97..8008e06b7efe 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -427,6 +427,15 @@ static int i2c_hid_hwreset(struct i2c_client *client)
if (ret)
goto out_unlock;

+ /*
+ * The HID over I2C specification states that if a DEVICE needs time
+ * after the PWR_ON request, it should utilise CLOCK stretching.
+ * However, it has been observered that the Windows driver provides a
+ * 1ms sleep between the PWR_ON and RESET requests and that some devices
+ * rely on this.
+ */
+ usleep_range(1000, 5000);
+
i2c_hid_dbg(ihid, "resetting...\n");

ret = i2c_hid_command(client, &hid_reset_cmd, NULL, 0);
diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index 0652281662a8..78792b4d6437 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -465,6 +465,7 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,
u8 *tmp_buf;
int len = 0;
int xfersz = brcmstb_i2c_get_xfersz(dev);
+ u32 cond, cond_per_msg;

if (dev->is_suspended)
return -EBUSY;
@@ -481,10 +482,11 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,
pmsg->buf ? pmsg->buf[0] : '0', pmsg->len);

if (i < (num - 1) && (msgs[i + 1].flags & I2C_M_NOSTART))
- brcmstb_set_i2c_start_stop(dev, ~(COND_START_STOP));
+ cond = ~COND_START_STOP;
else
- brcmstb_set_i2c_start_stop(dev,
- COND_RESTART | COND_NOSTOP);
+ cond = COND_RESTART | COND_NOSTOP;
+
+ brcmstb_set_i2c_start_stop(dev, cond);

/* Send slave address */
if (!(pmsg->flags & I2C_M_NOSTART)) {
@@ -497,13 +499,24 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,
}
}

+ cond_per_msg = cond;
+
/* Perform data transfer */
while (len) {
bytes_to_xfer = min(len, xfersz);

- if (len <= xfersz && i == (num - 1))
- brcmstb_set_i2c_start_stop(dev,
- ~(COND_START_STOP));
+ if (len <= xfersz) {
+ if (i == (num - 1))
+ cond_per_msg = cond_per_msg &
+ ~(COND_RESTART | COND_NOSTOP);
+ else
+ cond_per_msg = cond;
+ } else {
+ cond_per_msg = (cond_per_msg & ~COND_RESTART) |
+ COND_NOSTOP;
+ }
+
+ brcmstb_set_i2c_start_stop(dev, cond_per_msg);

rc = brcmstb_i2c_xfer_bsc_data(dev, tmp_buf,
bytes_to_xfer, pmsg);
@@ -512,6 +525,8 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter,

len -= bytes_to_xfer;
tmp_buf += bytes_to_xfer;
+
+ cond_per_msg = COND_NOSTART | COND_NOSTOP;
}
}

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
index 71232e5fabf6..20ec34761b39 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c
@@ -1267,6 +1267,7 @@ void hns_roce_v1_cq_set_ci(struct hns_roce_cq *hr_cq, u32 cons_index)
u32 doorbell[2];

doorbell[0] = cons_index & ((hr_cq->cq_depth << 1) - 1);
+ doorbell[1] = 0;
roce_set_bit(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_HW_SYNS_S, 1);
roce_set_field(doorbell[1], ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_M,
ROCEE_DB_OTHERS_H_ROCEE_DB_OTH_CMD_S, 3);
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 11a13b5be73a..41800b6d492e 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3857,11 +3857,9 @@ static void irte_ga_prepare(void *entry,
u8 vector, u32 dest_apicid, int devid)
{
struct irte_ga *irte = (struct irte_ga *) entry;
- struct iommu_dev_data *dev_data = search_dev_data(devid);

irte->lo.val = 0;
irte->hi.val = 0;
- irte->lo.fields_remap.guest_mode = dev_data ? dev_data->use_vapic : 0;
irte->lo.fields_remap.int_type = delivery_mode;
irte->lo.fields_remap.dm = dest_mode;
irte->hi.fields.vector = vector;
@@ -3917,10 +3915,10 @@ static void irte_ga_set_affinity(void *entry, u16 devid, u16 index,
struct irte_ga *irte = (struct irte_ga *) entry;
struct iommu_dev_data *dev_data = search_dev_data(devid);

- if (!dev_data || !dev_data->use_vapic) {
+ if (!dev_data || !dev_data->use_vapic ||
+ !irte->lo.fields_remap.guest_mode) {
irte->hi.fields.vector = vector;
irte->lo.fields_remap.destination = dest_apicid;
- irte->lo.fields_remap.guest_mode = 0;
modify_irte_ga(devid, index, irte, NULL);
}
}
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
index f8ed8c95b685..a0b4ac64b9ff 100644
--- a/drivers/iommu/amd_iommu_v2.c
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -695,9 +695,9 @@ int amd_iommu_bind_pasid(struct pci_dev *pdev, int pasid,

out_unregister:
mmu_notifier_unregister(&pasid_state->mn, mm);
+ mmput(mm);

out_free:
- mmput(mm);
free_pasid_state(pasid_state);

out:
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index c5ab8667e6f2..1520e7f02c2f 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -112,8 +112,7 @@ static void iova_reserve_pci_windows(struct pci_dev *dev,
unsigned long lo, hi;

resource_list_for_each_entry(window, &bridge->windows) {
- if (resource_type(window->res) != IORESOURCE_MEM &&
- resource_type(window->res) != IORESOURCE_IO)
+ if (resource_type(window->res) != IORESOURCE_MEM)
continue;

lo = iova_pfn(iovad, window->res->start - window->offset);
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 87fcbf71b85a..002f8a421efa 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1144,7 +1144,7 @@ static void dma_pte_free_level(struct dmar_domain *domain, int level,
if (!dma_pte_present(pte) || dma_pte_superpage(pte))
goto next;

- level_pfn = pfn & level_mask(level - 1);
+ level_pfn = pfn & level_mask(level);
level_pte = phys_to_virt(dma_pte_addr(pte));

if (level > 2)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 9a2f1960873b..87d3060f8609 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -383,36 +383,30 @@ int iommu_group_add_device(struct iommu_group *group, struct device *dev)
device->dev = dev;

ret = sysfs_create_link(&dev->kobj, &group->kobj, "iommu_group");
- if (ret) {
- kfree(device);
- return ret;
- }
+ if (ret)
+ goto err_free_device;

device->name = kasprintf(GFP_KERNEL, "%s", kobject_name(&dev->kobj));
rename:
if (!device->name) {
- sysfs_remove_link(&dev->kobj, "iommu_group");
- kfree(device);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err_remove_link;
}

ret = sysfs_create_link_nowarn(group->devices_kobj,
&dev->kobj, device->name);
if (ret) {
- kfree(device->name);
if (ret == -EEXIST && i >= 0) {
/*
* Account for the slim chance of collision
* and append an instance to the name.
*/
+ kfree(device->name);
device->name = kasprintf(GFP_KERNEL, "%s.%d",
kobject_name(&dev->kobj), i++);
goto rename;
}
-
- sysfs_remove_link(&dev->kobj, "iommu_group");
- kfree(device);
- return ret;
+ goto err_free_name;
}

kobject_get(group->devices_kobj);
@@ -424,8 +418,10 @@ int iommu_group_add_device(struct iommu_group *group, struct device *dev)
mutex_lock(&group->mutex);
list_add_tail(&device->list, &group->devices);
if (group->domain)
- __iommu_attach_device(group->domain, dev);
+ ret = __iommu_attach_device(group->domain, dev);
mutex_unlock(&group->mutex);
+ if (ret)
+ goto err_put_group;

/* Notify any listeners about change to group. */
blocking_notifier_call_chain(&group->notifier,
@@ -436,6 +432,21 @@ int iommu_group_add_device(struct iommu_group *group, struct device *dev)
pr_info("Adding device %s to group %d\n", dev_name(dev), group->id);

return 0;
+
+err_put_group:
+ mutex_lock(&group->mutex);
+ list_del(&device->list);
+ mutex_unlock(&group->mutex);
+ dev->iommu_group = NULL;
+ kobject_put(group->devices_kobj);
+err_free_name:
+ kfree(device->name);
+err_remove_link:
+ sysfs_remove_link(&dev->kobj, "iommu_group");
+err_free_device:
+ kfree(device);
+ pr_err("Failed to add device %s to group %d: %d\n", dev_name(dev), group->id, ret);
+ return ret;
}
EXPORT_SYMBOL_GPL(iommu_group_add_device);

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index be869a990e38..0b678b5da4c4 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1095,6 +1095,19 @@ static void process_prepared_discard_passdown_pt1(struct dm_thin_new_mapping *m)
return;
}

+ /*
+ * Increment the unmapped blocks. This prevents a race between the
+ * passdown io and reallocation of freed blocks.
+ */
+ r = dm_pool_inc_data_range(pool->pmd, m->data_block, data_end);
+ if (r) {
+ metadata_operation_failed(pool, "dm_pool_inc_data_range", r);
+ bio_io_error(m->bio);
+ cell_defer_no_holder(tc, m->cell);
+ mempool_free(m, pool->mapping_pool);
+ return;
+ }
+
discard_parent = bio_alloc(GFP_NOIO, 1);
if (!discard_parent) {
DMWARN("%s: unable to allocate top level discard bio for passdown. Skipping passdown.",
@@ -1115,19 +1128,6 @@ static void process_prepared_discard_passdown_pt1(struct dm_thin_new_mapping *m)
end_discard(&op, r);
}
}
-
- /*
- * Increment the unmapped blocks. This prevents a race between the
- * passdown io and reallocation of freed blocks.
- */
- r = dm_pool_inc_data_range(pool->pmd, m->data_block, data_end);
- if (r) {
- metadata_operation_failed(pool, "dm_pool_inc_data_range", r);
- bio_io_error(m->bio);
- cell_defer_no_holder(tc, m->cell);
- mempool_free(m, pool->mapping_pool);
- return;
- }
}

static void process_prepared_discard_passdown_pt2(struct dm_thin_new_mapping *m)
diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index 9d2424bfdbf5..d9fab2222eb3 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -101,6 +101,9 @@ struct brcm_nand_dma_desc {
#define BRCMNAND_MIN_BLOCKSIZE (8 * 1024)
#define BRCMNAND_MIN_DEVSIZE (4ULL * 1024 * 1024)

+#define NAND_CTRL_RDY (INTFC_CTLR_READY | INTFC_FLASH_READY)
+#define NAND_POLL_STATUS_TIMEOUT_MS 100
+
/* Controller feature flags */
enum {
BRCMNAND_HAS_1K_SECTORS = BIT(0),
@@ -765,6 +768,31 @@ enum {
CS_SELECT_AUTO_DEVICE_ID_CFG = BIT(30),
};

+static int bcmnand_ctrl_poll_status(struct brcmnand_controller *ctrl,
+ u32 mask, u32 expected_val,
+ unsigned long timeout_ms)
+{
+ unsigned long limit;
+ u32 val;
+
+ if (!timeout_ms)
+ timeout_ms = NAND_POLL_STATUS_TIMEOUT_MS;
+
+ limit = jiffies + msecs_to_jiffies(timeout_ms);
+ do {
+ val = brcmnand_read_reg(ctrl, BRCMNAND_INTFC_STATUS);
+ if ((val & mask) == expected_val)
+ return 0;
+
+ cpu_relax();
+ } while (time_after(limit, jiffies));
+
+ dev_warn(ctrl->dev, "timeout on status poll (expected %x got %x)\n",
+ expected_val, val & mask);
+
+ return -ETIMEDOUT;
+}
+
static inline void brcmnand_set_wp(struct brcmnand_controller *ctrl, bool en)
{
u32 val = en ? CS_SELECT_NAND_WP : 0;
@@ -1024,12 +1052,39 @@ static void brcmnand_wp(struct mtd_info *mtd, int wp)

if ((ctrl->features & BRCMNAND_HAS_WP) && wp_on == 1) {
static int old_wp = -1;
+ int ret;

if (old_wp != wp) {
dev_dbg(ctrl->dev, "WP %s\n", wp ? "on" : "off");
old_wp = wp;
}
+
+ /*
+ * make sure ctrl/flash ready before and after
+ * changing state of #WP pin
+ */
+ ret = bcmnand_ctrl_poll_status(ctrl, NAND_CTRL_RDY |
+ NAND_STATUS_READY,
+ NAND_CTRL_RDY |
+ NAND_STATUS_READY, 0);
+ if (ret)
+ return;
+
brcmnand_set_wp(ctrl, wp);
+ chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
+ /* NAND_STATUS_WP 0x00 = protected, 0x80 = not protected */
+ ret = bcmnand_ctrl_poll_status(ctrl,
+ NAND_CTRL_RDY |
+ NAND_STATUS_READY |
+ NAND_STATUS_WP,
+ NAND_CTRL_RDY |
+ NAND_STATUS_READY |
+ (wp ? 0 : NAND_STATUS_WP), 0);
+
+ if (ret)
+ dev_err_ratelimited(&host->pdev->dev,
+ "nand #WP expected %s\n",
+ wp ? "on" : "off");
}
}

@@ -1157,15 +1212,15 @@ static irqreturn_t brcmnand_dma_irq(int irq, void *data)
static void brcmnand_send_cmd(struct brcmnand_host *host, int cmd)
{
struct brcmnand_controller *ctrl = host->ctrl;
- u32 intfc;
+ int ret;

dev_dbg(ctrl->dev, "send native cmd %d addr_lo 0x%x\n", cmd,
brcmnand_read_reg(ctrl, BRCMNAND_CMD_ADDRESS));
BUG_ON(ctrl->cmd_pending != 0);
ctrl->cmd_pending = cmd;

- intfc = brcmnand_read_reg(ctrl, BRCMNAND_INTFC_STATUS);
- WARN_ON(!(intfc & INTFC_CTLR_READY));
+ ret = bcmnand_ctrl_poll_status(ctrl, NAND_CTRL_RDY, NAND_CTRL_RDY, 0);
+ WARN_ON(ret);

mb(); /* flush previous writes */
brcmnand_write_reg(ctrl, BRCMNAND_CMD_START,
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index ca106d4275cc..3424435a39dd 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -2825,8 +2825,10 @@ static int xgbe_init(struct xgbe_prv_data *pdata)

/* Flush Tx queues */
ret = xgbe_flush_tx_queues(pdata);
- if (ret)
+ if (ret) {
+ netdev_err(pdata->netdev, "error flushing TX queues\n");
return ret;
+ }

/*
* Initialize DMA related features
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index 0f0f30149e5a..1e4e8b245cd5 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -877,7 +877,9 @@ static int xgbe_start(struct xgbe_prv_data *pdata)

DBGPR("-->xgbe_start\n");

- hw_if->init(pdata);
+ ret = hw_if->init(pdata);
+ if (ret)
+ return ret;

ret = phy_if->phy_start(pdata);
if (ret)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 5cc0f8cfec87..20e569bd978a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1097,7 +1097,7 @@ static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info,
{
#ifdef CONFIG_INET
struct tcphdr *th;
- int len, nw_off, tcp_opt_len;
+ int len, nw_off, tcp_opt_len = 0;

if (tcp_ts)
tcp_opt_len = 12;
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
index 679679a4ccb2..e858b1af788d 100644
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -48,8 +48,9 @@ struct lmac {
struct bgx {
u8 bgx_id;
struct lmac lmac[MAX_LMAC_PER_BGX];
- int lmac_count;
+ u8 lmac_count;
u8 max_lmac;
+ u8 acpi_lmac_idx;
void __iomem *reg_base;
struct pci_dev *pdev;
bool is_dlm;
@@ -1159,13 +1160,13 @@ static acpi_status bgx_acpi_register_phy(acpi_handle handle,
if (acpi_bus_get_device(handle, &adev))
goto out;

- acpi_get_mac_address(dev, adev, bgx->lmac[bgx->lmac_count].mac);
+ acpi_get_mac_address(dev, adev, bgx->lmac[bgx->acpi_lmac_idx].mac);

- SET_NETDEV_DEV(&bgx->lmac[bgx->lmac_count].netdev, dev);
+ SET_NETDEV_DEV(&bgx->lmac[bgx->acpi_lmac_idx].netdev, dev);

- bgx->lmac[bgx->lmac_count].lmacid = bgx->lmac_count;
+ bgx->lmac[bgx->acpi_lmac_idx].lmacid = bgx->acpi_lmac_idx;
+ bgx->acpi_lmac_idx++; /* move to next LMAC */
out:
- bgx->lmac_count++;
return AE_OK;
}

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 0e74529a4209..30e855004c57 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1118,7 +1118,7 @@ int be_cmd_pmac_add(struct be_adapter *adapter, u8 *mac_addr,
err:
mutex_unlock(&adapter->mcc_lock);

- if (status == MCC_STATUS_UNAUTHORIZED_REQUEST)
+ if (base_status(status) == MCC_STATUS_UNAUTHORIZED_REQUEST)
status = -EPERM;

return status;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 9711ca4510fa..b3c9cbef766e 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -319,6 +319,13 @@ static int be_mac_addr_set(struct net_device *netdev, void *p)
if (ether_addr_equal(addr->sa_data, adapter->dev_mac))
return 0;

+ /* BE3 VFs without FILTMGMT privilege are not allowed to set its MAC
+ * address
+ */
+ if (BEx_chip(adapter) && be_virtfn(adapter) &&
+ !check_privilege(adapter, BE_PRIV_FILTMGMT))
+ return -EPERM;
+
/* if device is not running, copy MAC to netdev->dev_addr */
if (!netif_running(netdev))
goto done;
@@ -3630,7 +3637,11 @@ static void be_rx_qs_destroy(struct be_adapter *adapter)

static void be_disable_if_filters(struct be_adapter *adapter)
{
- be_dev_mac_del(adapter, adapter->pmac_id[0]);
+ /* Don't delete MAC on BE3 VFs without FILTMGMT privilege */
+ if (!BEx_chip(adapter) || !be_virtfn(adapter) ||
+ check_privilege(adapter, BE_PRIV_FILTMGMT))
+ be_dev_mac_del(adapter, adapter->pmac_id[0]);
+
be_clear_uc_list(adapter);
be_clear_mc_list(adapter);

@@ -3783,8 +3794,9 @@ static int be_enable_if_filters(struct be_adapter *adapter)
if (status)
return status;

- /* For BE3 VFs, the PF programs the initial MAC address */
- if (!(BEx_chip(adapter) && be_virtfn(adapter))) {
+ /* Don't add MAC on BE3 VFs without FILTMGMT privilege */
+ if (!BEx_chip(adapter) || !be_virtfn(adapter) ||
+ check_privilege(adapter, BE_PRIV_FILTMGMT)) {
status = be_dev_mac_add(adapter, adapter->netdev->dev_addr);
if (status)
return status;
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index d391beebe591..3f4e71148808 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2951,7 +2951,7 @@ static bool gfar_add_rx_frag(struct gfar_rx_buff *rxb, u32 lstatus,
}

/* try reuse page */
- if (unlikely(page_count(page) != 1))
+ if (unlikely(page_count(page) != 1 || page_is_pfmemalloc(page)))
return false;

/* change offset to the other half */
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 03dca732e4c6..b375ae9f98ef 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1604,8 +1604,11 @@ static int ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id)
netdev->netdev_ops = &ibmveth_netdev_ops;
netdev->ethtool_ops = &netdev_ethtool_ops;
SET_NETDEV_DEV(netdev, &dev->dev);
- netdev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM |
- NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
+ netdev->hw_features = NETIF_F_SG;
+ if (vio_get_attribute(dev, "ibm,illan-options", NULL) != NULL) {
+ netdev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+ NETIF_F_RXCSUM;
+ }

netdev->features |= netdev->hw_features;

diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index 1799fe1415df..c051987aab83 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -900,10 +900,10 @@ static void korina_restart_task(struct work_struct *work)
DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR,
&lp->rx_dma_regs->dmasm);

- korina_free_ring(dev);
-
napi_disable(&lp->napi);

+ korina_free_ring(dev);
+
if (korina_init(dev) < 0) {
printk(KERN_ERR "%s: cannot restart device\n", dev->name);
return;
@@ -1064,12 +1064,12 @@ static int korina_close(struct net_device *dev)
tmp = tmp | DMA_STAT_DONE | DMA_STAT_HALT | DMA_STAT_ERR;
writel(tmp, &lp->rx_dma_regs->dmasm);

- korina_free_ring(dev);
-
napi_disable(&lp->napi);

cancel_work_sync(&lp->restart_task);

+ korina_free_ring(dev);
+
free_irq(lp->rx_irq, dev);
free_irq(lp->tx_irq, dev);
free_irq(lp->ovr_irq, dev);
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index cd3638e6fe25..0509996957d9 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -554,8 +554,9 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
break;

case MLX4_EVENT_TYPE_SRQ_LIMIT:
- mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT\n",
- __func__);
+ mlx4_dbg(dev, "%s: MLX4_EVENT_TYPE_SRQ_LIMIT. srq_no=0x%x, eq 0x%x\n",
+ __func__, be32_to_cpu(eqe->event.srq.srqn),
+ eq->eqn);
case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
if (mlx4_is_master(dev)) {
/* forward only to slave owning the SRQ */
@@ -570,15 +571,19 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
eq->eqn, eq->cons_index, ret);
break;
}
- mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
- __func__, slave,
- be32_to_cpu(eqe->event.srq.srqn),
- eqe->type, eqe->subtype);
+ if (eqe->type ==
+ MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+ mlx4_warn(dev, "%s: slave:%d, srq_no:0x%x, event: %02x(%02x)\n",
+ __func__, slave,
+ be32_to_cpu(eqe->event.srq.srqn),
+ eqe->type, eqe->subtype);

if (!ret && slave != dev->caps.function) {
- mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
- __func__, eqe->type,
- eqe->subtype, slave);
+ if (eqe->type ==
+ MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)
+ mlx4_warn(dev, "%s: sending event %02x(%02x) to slave:%d\n",
+ __func__, eqe->type,
+ eqe->subtype, slave);
mlx4_slave_event(dev, slave, eqe);
break;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 21ce0b701143..6180ad45be18 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -283,13 +283,15 @@ struct mlx5e_dma_info {

struct mlx5e_rx_am_stats {
int ppms; /* packets per msec */
+ int bpms; /* bytes per msec */
int epms; /* events per msec */
};

struct mlx5e_rx_am_sample {
- ktime_t time;
- unsigned int pkt_ctr;
- u16 event_ctr;
+ ktime_t time;
+ u32 pkt_ctr;
+ u32 byte_ctr;
+ u16 event_ctr;
};

struct mlx5e_rx_am { /* Adaptive Moderation */
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
index 3744e2f79ecf..da1d73fe1a81 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
@@ -1183,11 +1183,11 @@ static int mlx5e_get_ts_info(struct net_device *dev,
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;

- info->tx_types = (BIT(1) << HWTSTAMP_TX_OFF) |
- (BIT(1) << HWTSTAMP_TX_ON);
+ info->tx_types = BIT(HWTSTAMP_TX_OFF) |
+ BIT(HWTSTAMP_TX_ON);

- info->rx_filters = (BIT(1) << HWTSTAMP_FILTER_NONE) |
- (BIT(1) << HWTSTAMP_FILTER_ALL);
+ info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
+ BIT(HWTSTAMP_FILTER_ALL);

return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index d4fa851ced2a..ea582342dd8f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3846,7 +3846,8 @@ struct net_device *mlx5e_create_netdev(struct mlx5_core_dev *mdev,
return netdev;

err_cleanup_nic:
- profile->cleanup(priv);
+ if (profile->cleanup)
+ profile->cleanup(priv);
free_netdev(netdev);

return NULL;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c
index cbfac06b7ffd..23ccec4cb7f5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx_am.c
@@ -183,28 +183,27 @@ static void mlx5e_am_exit_parking(struct mlx5e_rx_am *am)
mlx5e_am_step(am);
}

+#define IS_SIGNIFICANT_DIFF(val, ref) \
+ (((100 * abs((val) - (ref))) / (ref)) > 10) /* more than 10% difference */
+
static int mlx5e_am_stats_compare(struct mlx5e_rx_am_stats *curr,
struct mlx5e_rx_am_stats *prev)
{
- int diff;
-
- if (!prev->ppms)
- return curr->ppms ? MLX5E_AM_STATS_BETTER :
+ if (!prev->bpms)
+ return curr->bpms ? MLX5E_AM_STATS_BETTER :
MLX5E_AM_STATS_SAME;

- diff = curr->ppms - prev->ppms;
- if (((100 * abs(diff)) / prev->ppms) > 10) /* more than 10% diff */
- return (diff > 0) ? MLX5E_AM_STATS_BETTER :
- MLX5E_AM_STATS_WORSE;
+ if (IS_SIGNIFICANT_DIFF(curr->bpms, prev->bpms))
+ return (curr->bpms > prev->bpms) ? MLX5E_AM_STATS_BETTER :
+ MLX5E_AM_STATS_WORSE;

- if (!prev->epms)
- return curr->epms ? MLX5E_AM_STATS_WORSE :
- MLX5E_AM_STATS_SAME;
+ if (IS_SIGNIFICANT_DIFF(curr->ppms, prev->ppms))
+ return (curr->ppms > prev->ppms) ? MLX5E_AM_STATS_BETTER :
+ MLX5E_AM_STATS_WORSE;

- diff = curr->epms - prev->epms;
- if (((100 * abs(diff)) / prev->epms) > 10) /* more than 10% diff */
- return (diff < 0) ? MLX5E_AM_STATS_BETTER :
- MLX5E_AM_STATS_WORSE;
+ if (IS_SIGNIFICANT_DIFF(curr->epms, prev->epms))
+ return (curr->epms < prev->epms) ? MLX5E_AM_STATS_BETTER :
+ MLX5E_AM_STATS_WORSE;

return MLX5E_AM_STATS_SAME;
}
@@ -266,10 +265,13 @@ static void mlx5e_am_sample(struct mlx5e_rq *rq,
{
s->time = ktime_get();
s->pkt_ctr = rq->stats.packets;
+ s->byte_ctr = rq->stats.bytes;
s->event_ctr = rq->cq.event_ctr;
}

#define MLX5E_AM_NEVENTS 64
+#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE)
+#define BIT_GAP(bits, end, start) ((((end) - (start)) + BIT_ULL(bits)) & (BIT_ULL(bits) - 1))

static void mlx5e_am_calc_stats(struct mlx5e_rx_am_sample *start,
struct mlx5e_rx_am_sample *end,
@@ -277,13 +279,17 @@ static void mlx5e_am_calc_stats(struct mlx5e_rx_am_sample *start,
{
/* u32 holds up to 71 minutes, should be enough */
u32 delta_us = ktime_us_delta(end->time, start->time);
- unsigned int npkts = end->pkt_ctr - start->pkt_ctr;
+ u32 npkts = BIT_GAP(BITS_PER_TYPE(u32), end->pkt_ctr, start->pkt_ctr);
+ u32 nbytes = BIT_GAP(BITS_PER_TYPE(u32), end->byte_ctr,
+ start->byte_ctr);

if (!delta_us)
return;

- curr_stats->ppms = (npkts * USEC_PER_MSEC) / delta_us;
- curr_stats->epms = (MLX5E_AM_NEVENTS * USEC_PER_MSEC) / delta_us;
+ curr_stats->ppms = DIV_ROUND_UP(npkts * USEC_PER_MSEC, delta_us);
+ curr_stats->bpms = DIV_ROUND_UP(nbytes * USEC_PER_MSEC, delta_us);
+ curr_stats->epms = DIV_ROUND_UP(MLX5E_AM_NEVENTS * USEC_PER_MSEC,
+ delta_us);
}

void mlx5e_rx_am_work(struct work_struct *work)
@@ -308,7 +314,8 @@ void mlx5e_rx_am(struct mlx5e_rq *rq)

switch (am->state) {
case MLX5E_AM_MEASURE_IN_PROGRESS:
- nevents = rq->cq.event_ctr - am->start_sample.event_ctr;
+ nevents = BIT_GAP(BITS_PER_TYPE(u16), rq->cq.event_ctr,
+ am->start_sample.event_ctr);
if (nevents < MLX5E_AM_NEVENTS)
break;
mlx5e_am_sample(rq, &end_sample);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index d776db79e325..5bea0bf2b484 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -155,8 +155,9 @@ static struct mlx5_profile profile[] = {
},
};

-#define FW_INIT_TIMEOUT_MILI 2000
-#define FW_INIT_WAIT_MS 2
+#define FW_INIT_TIMEOUT_MILI 2000
+#define FW_INIT_WAIT_MS 2
+#define FW_PRE_INIT_TIMEOUT_MILI 10000

static int wait_fw_init(struct mlx5_core_dev *dev, u32 max_wait_mili)
{
@@ -956,6 +957,15 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv,
*/
dev->state = MLX5_DEVICE_STATE_UP;

+ /* wait for firmware to accept initialization segments configurations
+ */
+ err = wait_fw_init(dev, FW_PRE_INIT_TIMEOUT_MILI);
+ if (err) {
+ dev_err(&dev->pdev->dev, "Firmware over %d MS in pre-initializing state, aborting\n",
+ FW_PRE_INIT_TIMEOUT_MILI);
+ goto out;
+ }
+
err = mlx5_cmd_init(dev);
if (err) {
dev_err(&pdev->dev, "Failed initializing command interface, aborting\n");
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 690563099313..9e31a3390154 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -1178,7 +1178,8 @@ static int mlxsw_sp_nexthop_mac_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,

static int
mlxsw_sp_nexthop_group_mac_update(struct mlxsw_sp *mlxsw_sp,
- struct mlxsw_sp_nexthop_group *nh_grp)
+ struct mlxsw_sp_nexthop_group *nh_grp,
+ bool reallocate)
{
u32 adj_index = nh_grp->adj_index; /* base */
struct mlxsw_sp_nexthop *nh;
@@ -1193,7 +1194,7 @@ mlxsw_sp_nexthop_group_mac_update(struct mlxsw_sp *mlxsw_sp,
continue;
}

- if (nh->update) {
+ if (nh->update || reallocate) {
err = mlxsw_sp_nexthop_mac_update(mlxsw_sp,
adj_index, nh);
if (err)
@@ -1254,7 +1255,8 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp,
/* Nothing was added or removed, so no need to reallocate. Just
* update MAC on existing adjacency indexes.
*/
- err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp);
+ err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp,
+ false);
if (err) {
dev_warn(mlxsw_sp->bus_info->dev, "Failed to update neigh MAC in adjacency table.\n");
goto set_trap;
@@ -1282,7 +1284,7 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp,
nh_grp->adj_index_valid = 1;
nh_grp->adj_index = adj_index;
nh_grp->ecmp_size = ecmp_size;
- err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp);
+ err = mlxsw_sp_nexthop_group_mac_update(mlxsw_sp, nh_grp, true);
if (err) {
dev_warn(mlxsw_sp->bus_info->dev, "Failed to update neigh MAC in adjacency table.\n");
goto set_trap;
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 510ff62584d6..11623aad0e8e 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -229,18 +229,6 @@ static void ravb_ring_free(struct net_device *ndev, int q)
int ring_size;
int i;

- /* Free RX skb ringbuffer */
- if (priv->rx_skb[q]) {
- for (i = 0; i < priv->num_rx_ring[q]; i++)
- dev_kfree_skb(priv->rx_skb[q][i]);
- }
- kfree(priv->rx_skb[q]);
- priv->rx_skb[q] = NULL;
-
- /* Free aligned TX buffers */
- kfree(priv->tx_align[q]);
- priv->tx_align[q] = NULL;
-
if (priv->rx_ring[q]) {
for (i = 0; i < priv->num_rx_ring[q]; i++) {
struct ravb_ex_rx_desc *desc = &priv->rx_ring[q][i];
@@ -269,6 +257,18 @@ static void ravb_ring_free(struct net_device *ndev, int q)
priv->tx_ring[q] = NULL;
}

+ /* Free RX skb ringbuffer */
+ if (priv->rx_skb[q]) {
+ for (i = 0; i < priv->num_rx_ring[q]; i++)
+ dev_kfree_skb(priv->rx_skb[q][i]);
+ }
+ kfree(priv->rx_skb[q]);
+ priv->rx_skb[q] = NULL;
+
+ /* Free aligned TX buffers */
+ kfree(priv->tx_align[q]);
+ priv->tx_align[q] = NULL;
+
/* Free TX skb ringbuffer.
* SKBs are freed by ravb_tx_free() call above.
*/
diff --git a/drivers/net/ethernet/sfc/falcon.c b/drivers/net/ethernet/sfc/falcon.c
index 1a7092602aec..1bfb21465ace 100644
--- a/drivers/net/ethernet/sfc/falcon.c
+++ b/drivers/net/ethernet/sfc/falcon.c
@@ -2801,6 +2801,11 @@ const struct efx_nic_type falcon_a1_nic_type = {
.timer_period_max = 1 << FRF_AB_TC_TIMER_VAL_WIDTH,
.offload_features = NETIF_F_IP_CSUM,
.mcdi_max_ver = -1,
+#ifdef CONFIG_SFC_SRIOV
+ .vswitching_probe = efx_port_dummy_op_int,
+ .vswitching_restore = efx_port_dummy_op_int,
+ .vswitching_remove = efx_port_dummy_op_void,
+#endif
};

const struct efx_nic_type falcon_b0_nic_type = {
@@ -2902,4 +2907,9 @@ const struct efx_nic_type falcon_b0_nic_type = {
.offload_features = NETIF_F_IP_CSUM | NETIF_F_RXHASH | NETIF_F_NTUPLE,
.mcdi_max_ver = -1,
.max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS,
+#ifdef CONFIG_SFC_SRIOV
+ .vswitching_probe = efx_port_dummy_op_int,
+ .vswitching_restore = efx_port_dummy_op_int,
+ .vswitching_remove = efx_port_dummy_op_void,
+#endif
};
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index ac3d39c69509..890e4b083f4f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -346,6 +346,7 @@ void stmmac_remove_config_dt(struct platform_device *pdev,
if (of_phy_is_fixed_link(np))
of_phy_deregister_fixed_link(np);
of_node_put(plat->phy_node);
+ of_node_put(plat->mdio_node);
}
#else
struct plat_stmmacenet_data *
diff --git a/drivers/net/phy/dp83848.c b/drivers/net/phy/dp83848.c
index 800b39f06279..a10d0e7fc5f7 100644
--- a/drivers/net/phy/dp83848.c
+++ b/drivers/net/phy/dp83848.c
@@ -17,6 +17,7 @@
#include <linux/phy.h>

#define TI_DP83848C_PHY_ID 0x20005ca0
+#define TI_DP83620_PHY_ID 0x20005ce0
#define NS_DP83848C_PHY_ID 0x20005c90
#define TLK10X_PHY_ID 0x2000a210
#define TI_DP83822_PHY_ID 0x2000a240
@@ -77,6 +78,7 @@ static int dp83848_config_intr(struct phy_device *phydev)
static struct mdio_device_id __maybe_unused dp83848_tbl[] = {
{ TI_DP83848C_PHY_ID, 0xfffffff0 },
{ NS_DP83848C_PHY_ID, 0xfffffff0 },
+ { TI_DP83620_PHY_ID, 0xfffffff0 },
{ TLK10X_PHY_ID, 0xfffffff0 },
{ TI_DP83822_PHY_ID, 0xfffffff0 },
{ }
@@ -106,6 +108,7 @@ MODULE_DEVICE_TABLE(mdio, dp83848_tbl);
static struct phy_driver dp83848_driver[] = {
DP83848_PHY_DRIVER(TI_DP83848C_PHY_ID, "TI DP83848C 10/100 Mbps PHY"),
DP83848_PHY_DRIVER(NS_DP83848C_PHY_ID, "NS DP83848C 10/100 Mbps PHY"),
+ DP83848_PHY_DRIVER(TI_DP83620_PHY_ID, "TI DP83620 10/100 Mbps PHY"),
DP83848_PHY_DRIVER(TLK10X_PHY_ID, "TI TLK10X 10/100 Mbps PHY"),
DP83848_PHY_DRIVER(TI_DP83822_PHY_ID, "TI DP83822 10/100 Mbps PHY"),
};
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index 91177a4a32ad..4cad95552cf1 100644
--- a/drivers/net/phy/dp83867.c
+++ b/drivers/net/phy/dp83867.c
@@ -113,12 +113,16 @@ static int dp83867_of_init(struct phy_device *phydev)

ret = of_property_read_u32(of_node, "ti,rx-internal-delay",
&dp83867->rx_id_delay);
- if (ret)
+ if (ret &&
+ (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID))
return ret;

ret = of_property_read_u32(of_node, "ti,tx-internal-delay",
&dp83867->tx_id_delay);
- if (ret)
+ if (ret &&
+ (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID))
return ret;

return of_property_read_u32(of_node, "ti,fifo-depth",
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 2f70f80de27f..c60c147708c4 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1200,7 +1200,8 @@ static int marvell_read_status(struct phy_device *phydev)
int err;

/* Check the fiber mode first */
- if (phydev->supported & SUPPORTED_FIBRE) {
+ if (phydev->supported & SUPPORTED_FIBRE &&
+ phydev->interface != PHY_INTERFACE_MODE_SGMII) {
err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
if (err < 0)
goto error;
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index a9be26f1f677..edd30ebbf275 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1384,6 +1384,9 @@ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data)
{
int val = ethtool_adv_to_mmd_eee_adv_t(data->advertised);

+ /* Mask prohibited EEE modes */
+ val &= ~phydev->eee_broken_modes;
+
phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, val);

return 0;
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 14d57d0d1c04..32b555a72e13 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1146,6 +1146,43 @@ static int genphy_config_advert(struct phy_device *phydev)
}

/**
+ * genphy_config_eee_advert - disable unwanted eee mode advertisement
+ * @phydev: target phy_device struct
+ *
+ * Description: Writes MDIO_AN_EEE_ADV after disabling unsupported energy
+ * efficent ethernet modes. Returns 0 if the PHY's advertisement hasn't
+ * changed, and 1 if it has changed.
+ */
+static int genphy_config_eee_advert(struct phy_device *phydev)
+{
+ int broken = phydev->eee_broken_modes;
+ int old_adv, adv;
+
+ /* Nothing to disable */
+ if (!broken)
+ return 0;
+
+ /* If the following call fails, we assume that EEE is not
+ * supported by the phy. If we read 0, EEE is not advertised
+ * In both case, we don't need to continue
+ */
+ adv = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN);
+ if (adv <= 0)
+ return 0;
+
+ old_adv = adv;
+ adv &= ~broken;
+
+ /* Advertising remains unchanged with the broken mask */
+ if (old_adv == adv)
+ return 0;
+
+ phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, adv);
+
+ return 1;
+}
+
+/**
* genphy_setup_forced - configures/forces speed/duplex from @phydev
* @phydev: target phy_device struct
*
@@ -1203,15 +1240,20 @@ EXPORT_SYMBOL(genphy_restart_aneg);
*/
int genphy_config_aneg(struct phy_device *phydev)
{
- int result;
+ int err, changed;
+
+ changed = genphy_config_eee_advert(phydev);

if (AUTONEG_ENABLE != phydev->autoneg)
return genphy_setup_forced(phydev);

- result = genphy_config_advert(phydev);
- if (result < 0) /* error */
- return result;
- if (result == 0) {
+ err = genphy_config_advert(phydev);
+ if (err < 0) /* error */
+ return err;
+
+ changed |= err;
+
+ if (changed == 0) {
/* Advertisement hasn't changed, but maybe aneg was never on to
* begin with? Or maybe phy was isolated?
*/
@@ -1221,16 +1263,16 @@ int genphy_config_aneg(struct phy_device *phydev)
return ctl;

if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
- result = 1; /* do restart aneg */
+ changed = 1; /* do restart aneg */
}

/* Only restart aneg if we are advertising something different
* than we were before.
*/
- if (result > 0)
- result = genphy_restart_aneg(phydev);
+ if (changed > 0)
+ return genphy_restart_aneg(phydev);

- return result;
+ return 0;
}
EXPORT_SYMBOL(genphy_config_aneg);

@@ -1588,6 +1630,33 @@ static void of_set_phy_supported(struct phy_device *phydev)
__set_phy_supported(phydev, max_speed);
}

+static void of_set_phy_eee_broken(struct phy_device *phydev)
+{
+ struct device_node *node = phydev->mdio.dev.of_node;
+ u32 broken = 0;
+
+ if (!IS_ENABLED(CONFIG_OF_MDIO))
+ return;
+
+ if (!node)
+ return;
+
+ if (of_property_read_bool(node, "eee-broken-100tx"))
+ broken |= MDIO_EEE_100TX;
+ if (of_property_read_bool(node, "eee-broken-1000t"))
+ broken |= MDIO_EEE_1000T;
+ if (of_property_read_bool(node, "eee-broken-10gt"))
+ broken |= MDIO_EEE_10GT;
+ if (of_property_read_bool(node, "eee-broken-1000kx"))
+ broken |= MDIO_EEE_1000KX;
+ if (of_property_read_bool(node, "eee-broken-10gkx4"))
+ broken |= MDIO_EEE_10GKX4;
+ if (of_property_read_bool(node, "eee-broken-10gkr"))
+ broken |= MDIO_EEE_10GKR;
+
+ phydev->eee_broken_modes = broken;
+}
+
/**
* phy_probe - probe and init a PHY device
* @dev: device to probe and init
@@ -1625,6 +1694,11 @@ static int phy_probe(struct device *dev)
of_set_phy_supported(phydev);
phydev->advertising = phydev->supported;

+ /* Get the EEE modes we want to prohibit. We will ask
+ * the PHY stop advertising these mode later on
+ */
+ of_set_phy_eee_broken(phydev);
+
/* Set the state to READY by default */
phydev->state = PHY_READY;

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 7ca99899972e..1568aedddfc9 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -47,8 +47,16 @@ module_param(gso, bool, 0444);
*/
DECLARE_EWMA(pkt_len, 1, 64)

+/* With mergeable buffers we align buffer address and use the low bits to
+ * encode its true size. Buffer size is up to 1 page so we need to align to
+ * square root of page size to ensure we reserve enough bits to encode the true
+ * size.
+ */
+#define MERGEABLE_BUFFER_MIN_ALIGN_SHIFT ((PAGE_SHIFT + 1) / 2)
+
/* Minimum alignment for mergeable packet buffers. */
-#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, 256)
+#define MERGEABLE_BUFFER_ALIGN max(L1_CACHE_BYTES, \
+ 1 << MERGEABLE_BUFFER_MIN_ALIGN_SHIFT)

#define VIRTNET_DRIVER_VERSION "1.0.0"

diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index ee02605a0f89..642df9391193 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -36,12 +36,14 @@
#include <net/addrconf.h>
#include <net/l3mdev.h>
#include <net/fib_rules.h>
+#include <net/netns/generic.h>

#define DRV_NAME "vrf"
#define DRV_VERSION "1.0"

#define FIB_RULE_PREF 1000 /* default preference for FIB rules */
-static bool add_fib_rules = true;
+
+static unsigned int vrf_net_id;

struct net_vrf {
struct rtable __rcu *rth;
@@ -1237,6 +1239,8 @@ static int vrf_newlink(struct net *src_net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[])
{
struct net_vrf *vrf = netdev_priv(dev);
+ bool *add_fib_rules;
+ struct net *net;
int err;

if (!data || !data[IFLA_VRF_TABLE])
@@ -1252,13 +1256,15 @@ static int vrf_newlink(struct net *src_net, struct net_device *dev,
if (err)
goto out;

- if (add_fib_rules) {
+ net = dev_net(dev);
+ add_fib_rules = net_generic(net, vrf_net_id);
+ if (*add_fib_rules) {
err = vrf_add_fib_rules(dev);
if (err) {
unregister_netdevice(dev);
goto out;
}
- add_fib_rules = false;
+ *add_fib_rules = false;
}

out:
@@ -1341,16 +1347,38 @@ static struct notifier_block vrf_notifier_block __read_mostly = {
.notifier_call = vrf_device_event,
};

+/* Initialize per network namespace state */
+static int __net_init vrf_netns_init(struct net *net)
+{
+ bool *add_fib_rules = net_generic(net, vrf_net_id);
+
+ *add_fib_rules = true;
+
+ return 0;
+}
+
+static struct pernet_operations vrf_net_ops __net_initdata = {
+ .init = vrf_netns_init,
+ .id = &vrf_net_id,
+ .size = sizeof(bool),
+};
+
static int __init vrf_init_module(void)
{
int rc;

register_netdevice_notifier(&vrf_notifier_block);

- rc = rtnl_link_register(&vrf_link_ops);
+ rc = register_pernet_subsys(&vrf_net_ops);
if (rc < 0)
goto error;

+ rc = rtnl_link_register(&vrf_link_ops);
+ if (rc < 0) {
+ unregister_pernet_subsys(&vrf_net_ops);
+ goto error;
+ }
+
return 0;

error:
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 55c4408892be..963e5339a4d7 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2285,7 +2285,7 @@ static void vxlan_cleanup(unsigned long arg)
= container_of(p, struct vxlan_fdb, hlist);
unsigned long timeout;

- if (f->state & NUD_PERMANENT)
+ if (f->state & (NUD_PERMANENT | NUD_NOARP))
continue;

timeout = f->used + vxlan->cfg.age_interval * HZ;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 78d9966a3957..0f5dde1f2248 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -5913,7 +5913,6 @@ static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
u32 i, j;
u32 total;
u32 chaninfo;
- u32 index;

pbuf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);

@@ -5961,33 +5960,36 @@ static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
ch.bw == BRCMU_CHAN_BW_80)
continue;

- channel = band->channels;
- index = band->n_channels;
+ channel = NULL;
for (j = 0; j < band->n_channels; j++) {
- if (channel[j].hw_value == ch.control_ch_num) {
- index = j;
+ if (band->channels[j].hw_value == ch.control_ch_num) {
+ channel = &band->channels[j];
break;
}
}
- channel[index].center_freq =
- ieee80211_channel_to_frequency(ch.control_ch_num,
- band->band);
- channel[index].hw_value = ch.control_ch_num;
+ if (!channel) {
+ /* It seems firmware supports some channel we never
+ * considered. Something new in IEEE standard?
+ */
+ brcmf_err("Ignoring unexpected firmware channel %d\n",
+ ch.control_ch_num);
+ continue;
+ }

/* assuming the chanspecs order is HT20,
* HT40 upper, HT40 lower, and VHT80.
*/
if (ch.bw == BRCMU_CHAN_BW_80) {
- channel[index].flags &= ~IEEE80211_CHAN_NO_80MHZ;
+ channel->flags &= ~IEEE80211_CHAN_NO_80MHZ;
} else if (ch.bw == BRCMU_CHAN_BW_40) {
- brcmf_update_bw40_channel_flag(&channel[index], &ch);
+ brcmf_update_bw40_channel_flag(channel, &ch);
} else {
/* enable the channel and disable other bandwidths
* for now as mentioned order assure they are enabled
* for subsequent chanspecs.
*/
- channel[index].flags = IEEE80211_CHAN_NO_HT40 |
- IEEE80211_CHAN_NO_80MHZ;
+ channel->flags = IEEE80211_CHAN_NO_HT40 |
+ IEEE80211_CHAN_NO_80MHZ;
ch.bw = BRCMU_CHAN_BW_20;
cfg->d11inf.encchspec(&ch);
chaninfo = ch.chspec;
@@ -5995,11 +5997,11 @@ static int brcmf_construct_chaninfo(struct brcmf_cfg80211_info *cfg,
&chaninfo);
if (!err) {
if (chaninfo & WL_CHAN_RADAR)
- channel[index].flags |=
+ channel->flags |=
(IEEE80211_CHAN_RADAR |
IEEE80211_CHAN_NO_IR);
if (chaninfo & WL_CHAN_PASSIVE)
- channel[index].flags |=
+ channel->flags |=
IEEE80211_CHAN_NO_IR;
}
}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
index 63a051be832e..bec7d9c46087 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
@@ -843,8 +843,10 @@ static void iwl_mvm_thermal_zone_unregister(struct iwl_mvm *mvm)
return;

IWL_DEBUG_TEMP(mvm, "Thermal zone device unregister\n");
- thermal_zone_device_unregister(mvm->tz_device.tzone);
- mvm->tz_device.tzone = NULL;
+ if (mvm->tz_device.tzone) {
+ thermal_zone_device_unregister(mvm->tz_device.tzone);
+ mvm->tz_device.tzone = NULL;
+ }
}

static void iwl_mvm_cooling_device_unregister(struct iwl_mvm *mvm)
@@ -853,8 +855,10 @@ static void iwl_mvm_cooling_device_unregister(struct iwl_mvm *mvm)
return;

IWL_DEBUG_TEMP(mvm, "Cooling device unregister\n");
- thermal_cooling_device_unregister(mvm->cooling_dev.cdev);
- mvm->cooling_dev.cdev = NULL;
+ if (mvm->cooling_dev.cdev) {
+ thermal_cooling_device_unregister(mvm->cooling_dev.cdev);
+ mvm->cooling_dev.cdev = NULL;
+ }
}
#endif /* CONFIG_THERMAL */

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 74dc2bf71428..b009d7966b46 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -221,18 +221,18 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev)
{
struct xenvif *vif = netdev_priv(dev);
struct xenvif_queue *queue = NULL;
- unsigned int num_queues = vif->num_queues;
unsigned long rx_bytes = 0;
unsigned long rx_packets = 0;
unsigned long tx_bytes = 0;
unsigned long tx_packets = 0;
unsigned int index;

+ spin_lock(&vif->lock);
if (vif->queues == NULL)
goto out;

/* Aggregate tx and rx stats from each queue */
- for (index = 0; index < num_queues; ++index) {
+ for (index = 0; index < vif->num_queues; ++index) {
queue = &vif->queues[index];
rx_bytes += queue->stats.rx_bytes;
rx_packets += queue->stats.rx_packets;
@@ -241,6 +241,8 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev)
}

out:
+ spin_unlock(&vif->lock);
+
vif->dev->stats.rx_bytes = rx_bytes;
vif->dev->stats.rx_packets = rx_packets;
vif->dev->stats.tx_bytes = tx_bytes;
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 8674e188b697..b44f37fff890 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -493,11 +493,22 @@ static int backend_create_xenvif(struct backend_info *be)
static void backend_disconnect(struct backend_info *be)
{
if (be->vif) {
+ unsigned int queue_index;
+
xen_unregister_watchers(be->vif);
#ifdef CONFIG_DEBUG_FS
xenvif_debugfs_delif(be->vif);
#endif /* CONFIG_DEBUG_FS */
xenvif_disconnect_data(be->vif);
+ for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)
+ xenvif_deinit_queue(&be->vif->queues[queue_index]);
+
+ spin_lock(&be->vif->lock);
+ vfree(be->vif->queues);
+ be->vif->num_queues = 0;
+ be->vif->queues = NULL;
+ spin_unlock(&be->vif->lock);
+
xenvif_disconnect_ctrl(be->vif);
}
}
@@ -1040,6 +1051,8 @@ static void connect(struct backend_info *be)
err:
if (be->vif->num_queues > 0)
xenvif_disconnect_data(be->vif); /* Clean up existing queues */
+ for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)
+ xenvif_deinit_queue(&be->vif->queues[queue_index]);
vfree(be->vif->queues);
be->vif->queues = NULL;
be->vif->num_queues = 0;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 0cdcb2169083..599cf5090030 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -321,7 +321,7 @@ static void xennet_alloc_rx_buffers(struct netfront_queue *queue)
queue->rx.req_prod_pvt = req_prod;

/* Not enough requests? Try again later. */
- if (req_prod - queue->rx.rsp_cons < NET_RX_SLOTS_MIN) {
+ if (req_prod - queue->rx.sring->req_prod < NET_RX_SLOTS_MIN) {
mod_timer(&queue->rx_refill_timer, jiffies + (HZ/10));
return;
}
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index b4808590870c..3456f532077c 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -87,7 +87,9 @@ static int read_pmem(struct page *page, unsigned int off,

rc = memcpy_from_pmem(mem + off, pmem_addr, len);
kunmap_atomic(mem);
- return rc;
+ if (rc)
+ return -EIO;
+ return 0;
}

static int pmem_do_bvec(struct pmem_device *pmem, struct page *page,
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index 01443762e570..b40a074822cf 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -353,6 +353,21 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function,
return 0;
}

+static void __intel_gpio_set_direction(void __iomem *padcfg0, bool input)
+{
+ u32 value;
+
+ value = readl(padcfg0);
+ if (input) {
+ value &= ~PADCFG0_GPIORXDIS;
+ value |= PADCFG0_GPIOTXDIS;
+ } else {
+ value &= ~PADCFG0_GPIOTXDIS;
+ value |= PADCFG0_GPIORXDIS;
+ }
+ writel(value, padcfg0);
+}
+
static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range,
unsigned pin)
@@ -375,11 +390,11 @@ static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
/* Disable SCI/SMI/NMI generation */
value &= ~(PADCFG0_GPIROUTIOXAPIC | PADCFG0_GPIROUTSCI);
value &= ~(PADCFG0_GPIROUTSMI | PADCFG0_GPIROUTNMI);
- /* Disable TX buffer and enable RX (this will be input) */
- value &= ~PADCFG0_GPIORXDIS;
- value |= PADCFG0_GPIOTXDIS;
writel(value, padcfg0);

+ /* Disable TX buffer and enable RX (this will be input) */
+ __intel_gpio_set_direction(padcfg0, true);
+
raw_spin_unlock_irqrestore(&pctrl->lock, flags);

return 0;
@@ -392,18 +407,11 @@ static int intel_gpio_set_direction(struct pinctrl_dev *pctldev,
struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
void __iomem *padcfg0;
unsigned long flags;
- u32 value;

raw_spin_lock_irqsave(&pctrl->lock, flags);

padcfg0 = intel_get_padcfg(pctrl, pin, PADCFG0);
-
- value = readl(padcfg0);
- if (input)
- value |= PADCFG0_GPIOTXDIS;
- else
- value &= ~PADCFG0_GPIOTXDIS;
- writel(value, padcfg0);
+ __intel_gpio_set_direction(padcfg0, input);

raw_spin_unlock_irqrestore(&pctrl->lock, flags);

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index a7614fc542b5..2f1615e00cb4 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -813,6 +813,7 @@ static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
case 8:
case 7:
case 6:
+ case 1:
ideapad_input_report(priv, vpc_bit);
break;
case 5:
diff --git a/drivers/regulator/tps65086-regulator.c b/drivers/regulator/tps65086-regulator.c
index caf174ffa316..6dbf3cf3951e 100644
--- a/drivers/regulator/tps65086-regulator.c
+++ b/drivers/regulator/tps65086-regulator.c
@@ -156,19 +156,19 @@ static struct tps65086_regulator regulators[] = {
VDOA23_VID_MASK, TPS65086_LDOA3CTRL, BIT(0),
tps65086_ldoa23_ranges, 0, 0),
TPS65086_SWITCH("SWA1", "swa1", SWA1, TPS65086_SWVTT_EN, BIT(5)),
- TPS65086_SWITCH("SWB1", "swa2", SWB1, TPS65086_SWVTT_EN, BIT(6)),
- TPS65086_SWITCH("SWB2", "swa3", SWB2, TPS65086_SWVTT_EN, BIT(7)),
+ TPS65086_SWITCH("SWB1", "swb1", SWB1, TPS65086_SWVTT_EN, BIT(6)),
+ TPS65086_SWITCH("SWB2", "swb2", SWB2, TPS65086_SWVTT_EN, BIT(7)),
TPS65086_SWITCH("VTT", "vtt", VTT, TPS65086_SWVTT_EN, BIT(4)),
};

-static int tps65086_of_parse_cb(struct device_node *dev,
+static int tps65086_of_parse_cb(struct device_node *node,
const struct regulator_desc *desc,
struct regulator_config *config)
{
int ret;

/* Check for 25mV step mode */
- if (of_property_read_bool(config->of_node, "ti,regulator-step-size-25mv")) {
+ if (of_property_read_bool(node, "ti,regulator-step-size-25mv")) {
switch (desc->id) {
case BUCK1:
case BUCK2:
@@ -192,7 +192,7 @@ static int tps65086_of_parse_cb(struct device_node *dev,
}

/* Check for decay mode */
- if (desc->id <= BUCK6 && of_property_read_bool(config->of_node, "ti,regulator-decay")) {
+ if (desc->id <= BUCK6 && of_property_read_bool(node, "ti,regulator-decay")) {
ret = regmap_write_bits(config->regmap,
regulators[desc->id].decay_reg,
regulators[desc->id].decay_mask,
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b7d54bfb1df9..7b696d108112 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -3590,12 +3590,14 @@ lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
} else {
buf_ptr1 = (struct lpfc_dmabuf *) elsiocb->context2;
lpfc_els_free_data(phba, buf_ptr1);
+ elsiocb->context2 = NULL;
}
}

if (elsiocb->context3) {
buf_ptr = (struct lpfc_dmabuf *) elsiocb->context3;
lpfc_els_free_bpl(phba, buf_ptr);
+ elsiocb->context3 = NULL;
}
lpfc_sli_release_iocbq(phba, elsiocb);
return 0;
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 49b4c798de18..2d4f4b58dcfa 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -5951,18 +5951,25 @@ lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)

free_vfi_bmask:
kfree(phba->sli4_hba.vfi_bmask);
+ phba->sli4_hba.vfi_bmask = NULL;
free_xri_ids:
kfree(phba->sli4_hba.xri_ids);
+ phba->sli4_hba.xri_ids = NULL;
free_xri_bmask:
kfree(phba->sli4_hba.xri_bmask);
+ phba->sli4_hba.xri_bmask = NULL;
free_vpi_ids:
kfree(phba->vpi_ids);
+ phba->vpi_ids = NULL;
free_vpi_bmask:
kfree(phba->vpi_bmask);
+ phba->vpi_bmask = NULL;
free_rpi_ids:
kfree(phba->sli4_hba.rpi_ids);
+ phba->sli4_hba.rpi_ids = NULL;
free_rpi_bmask:
kfree(phba->sli4_hba.rpi_bmask);
+ phba->sli4_hba.rpi_bmask = NULL;
err_exit:
return rc;
}
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 8e63a7b90277..91ec0689c714 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -1555,7 +1555,8 @@ typedef struct {
struct atio {
uint8_t entry_type; /* Entry type. */
uint8_t entry_count; /* Entry count. */
- uint8_t data[58];
+ __le16 attr_n_length;
+ uint8_t data[56];
uint32_t signature;
#define ATIO_PROCESSED 0xDEADDEAD /* Signature */
};
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 068c4e47fac9..bddaabb288d4 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2487,6 +2487,10 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
if (pkt->entry_status & RF_BUSY)
res = DID_BUS_BUSY << 16;

+ if (pkt->entry_type == NOTIFY_ACK_TYPE &&
+ pkt->handle == QLA_TGT_SKIP_HANDLE)
+ return;
+
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (sp) {
sp->done(ha, sp, res);
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index feab7ea8e823..91f5f55a8a9b 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3067,7 +3067,7 @@ static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha,

pkt->entry_type = NOTIFY_ACK_TYPE;
pkt->entry_count = 1;
- pkt->handle = QLA_TGT_SKIP_HANDLE | CTIO_COMPLETION_HANDLE_MARK;
+ pkt->handle = QLA_TGT_SKIP_HANDLE;

nack = (struct nack_to_isp *)pkt;
nack->ox_id = ntfy->ox_id;
@@ -6463,12 +6463,29 @@ qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked)
if (!vha->flags.online)
return;

- while (ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) {
+ while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) ||
+ fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr)) {
pkt = (struct atio_from_isp *)ha->tgt.atio_ring_ptr;
cnt = pkt->u.raw.entry_count;

- qlt_24xx_atio_pkt_all_vps(vha, (struct atio_from_isp *)pkt,
- ha_locked);
+ if (unlikely(fcpcmd_is_corrupted(ha->tgt.atio_ring_ptr))) {
+ /*
+ * This packet is corrupted. The header + payload
+ * can not be trusted. There is no point in passing
+ * it further up.
+ */
+ ql_log(ql_log_warn, vha, 0xffff,
+ "corrupted fcp frame SID[%3phN] OXID[%04x] EXCG[%x] %64phN\n",
+ pkt->u.isp24.fcp_hdr.s_id,
+ be16_to_cpu(pkt->u.isp24.fcp_hdr.ox_id),
+ le32_to_cpu(pkt->u.isp24.exchange_addr), pkt);
+
+ adjust_corrupted_atio(pkt);
+ qlt_send_term_exchange(vha, NULL, pkt, ha_locked, 0);
+ } else {
+ qlt_24xx_atio_pkt_all_vps(vha,
+ (struct atio_from_isp *)pkt, ha_locked);
+ }

for (i = 0; i < cnt; i++) {
ha->tgt.atio_ring_index++;
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index f26c5f60eedd..0824a8164a24 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -427,13 +427,33 @@ struct atio_from_isp {
struct {
uint8_t entry_type; /* Entry type. */
uint8_t entry_count; /* Entry count. */
- uint8_t data[58];
+ __le16 attr_n_length;
+#define FCP_CMD_LENGTH_MASK 0x0fff
+#define FCP_CMD_LENGTH_MIN 0x38
+ uint8_t data[56];
uint32_t signature;
#define ATIO_PROCESSED 0xDEADDEAD /* Signature */
} raw;
} u;
} __packed;

+static inline int fcpcmd_is_corrupted(struct atio *atio)
+{
+ if (atio->entry_type == ATIO_TYPE7 &&
+ (le16_to_cpu(atio->attr_n_length & FCP_CMD_LENGTH_MASK) <
+ FCP_CMD_LENGTH_MIN))
+ return 1;
+ else
+ return 0;
+}
+
+/* adjust corrupted atio so we won't trip over the same entry again. */
+static inline void adjust_corrupted_atio(struct atio_from_isp *atio)
+{
+ atio->u.raw.attr_n_length = cpu_to_le16(FCP_CMD_LENGTH_MIN);
+ atio->u.isp24.fcp_cmnd.add_cdb_len = 0;
+}
+
#define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */

/*
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 931af0793951..13ac7e57a35d 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2572,7 +2572,8 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer)
if (sdp->broken_fua) {
sd_first_printk(KERN_NOTICE, sdkp, "Disabling FUA\n");
sdkp->DPOFUA = 0;
- } else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw) {
+ } else if (sdkp->DPOFUA && !sdkp->device->use_10_for_rw &&
+ !sdkp->device->use_16_for_rw) {
sd_first_printk(KERN_NOTICE, sdkp,
"Uses READ/WRITE(6), disabling FUA\n");
sdkp->DPOFUA = 0;
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index ec91bd07f00a..c680d7641311 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -534,7 +534,9 @@ static int virtscsi_queuecommand(struct virtio_scsi *vscsi,
{
struct Scsi_Host *shost = virtio_scsi_host(vscsi->vdev);
struct virtio_scsi_cmd *cmd = scsi_cmd_priv(sc);
+ unsigned long flags;
int req_size;
+ int ret;

BUG_ON(scsi_sg_count(sc) > shost->sg_tablesize);

@@ -562,8 +564,15 @@ static int virtscsi_queuecommand(struct virtio_scsi *vscsi,
req_size = sizeof(cmd->req.cmd);
}

- if (virtscsi_kick_cmd(req_vq, cmd, req_size, sizeof(cmd->resp.cmd)) != 0)
+ ret = virtscsi_kick_cmd(req_vq, cmd, req_size, sizeof(cmd->resp.cmd));
+ if (ret == -EIO) {
+ cmd->resp.cmd.response = VIRTIO_SCSI_S_BAD_TARGET;
+ spin_lock_irqsave(&req_vq->vq_lock, flags);
+ virtscsi_complete_cmd(vscsi, cmd);
+ spin_unlock_irqrestore(&req_vq->vq_lock, flags);
+ } else if (ret != 0) {
return SCSI_MLQUEUE_HOST_BUSY;
+ }
return 0;
}

diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index d36c11b73a35..02fb96797ac8 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -646,7 +646,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
buf = t->rx_buf;
t->rx_dma = dma_map_single(&spi->dev, buf,
t->len, DMA_FROM_DEVICE);
- if (!t->rx_dma) {
+ if (dma_mapping_error(&spi->dev, !t->rx_dma)) {
ret = -EFAULT;
goto err_rx_map;
}
@@ -660,7 +660,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
buf = (void *)t->tx_buf;
t->tx_dma = dma_map_single(&spi->dev, buf,
t->len, DMA_TO_DEVICE);
- if (!t->tx_dma) {
+ if (dma_mapping_error(&spi->dev, t->tx_dma)) {
ret = -EFAULT;
goto err_tx_map;
}
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 24d4492d0168..6db80635ace8 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -621,8 +621,10 @@ void spi_unregister_device(struct spi_device *spi)
if (!spi)
return;

- if (spi->dev.of_node)
+ if (spi->dev.of_node) {
of_node_clear_flag(spi->dev.of_node, OF_POPULATED);
+ of_node_put(spi->dev.of_node);
+ }
if (ACPI_COMPANION(&spi->dev))
acpi_device_clear_enumerated(ACPI_COMPANION(&spi->dev));
device_unregister(&spi->dev);
@@ -797,12 +799,12 @@ static int __spi_map_msg(struct spi_master *master, struct spi_message *msg)
if (master->dma_tx)
tx_dev = master->dma_tx->device->dev;
else
- tx_dev = &master->dev;
+ tx_dev = master->dev.parent;

if (master->dma_rx)
rx_dev = master->dma_rx->device->dev;
else
- rx_dev = &master->dev;
+ rx_dev = master->dev.parent;

list_for_each_entry(xfer, &msg->transfers, transfer_list) {
if (!master->can_dma(master, msg->spi, xfer))
@@ -844,12 +846,12 @@ static int __spi_unmap_msg(struct spi_master *master, struct spi_message *msg)
if (master->dma_tx)
tx_dev = master->dma_tx->device->dev;
else
- tx_dev = &master->dev;
+ tx_dev = master->dev.parent;

if (master->dma_rx)
rx_dev = master->dma_rx->device->dev;
else
- rx_dev = &master->dev;
+ rx_dev = master->dev.parent;

list_for_each_entry(xfer, &msg->transfers, transfer_list) {
if (!master->can_dma(master, msg->spi, xfer))
@@ -1589,11 +1591,13 @@ of_register_spi_device(struct spi_master *master, struct device_node *nc)
if (rc) {
dev_err(&master->dev, "spi_device register error %s\n",
nc->full_name);
- goto err_out;
+ goto err_of_node_put;
}

return spi;

+err_of_node_put:
+ of_node_put(nc);
err_out:
spi_dev_put(spi);
return ERR_PTR(rc);
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 24fbebc9b409..cfdd5c3da236 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2532,7 +2532,7 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
/* keep other bits untouched (so e.g. forced modes are not lost) */
usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP |
- GUSBCFG_HNPCAP);
+ GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK);

/* set the PLL on, remove the HNP/SRP and set the PHY */
val = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
@@ -3403,7 +3403,7 @@ static void dwc2_hsotg_init(struct dwc2_hsotg *hsotg)
/* keep other bits untouched (so e.g. forced modes are not lost) */
usbcfg = dwc2_readl(hsotg->regs + GUSBCFG);
usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP |
- GUSBCFG_HNPCAP);
+ GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK);

/* set the PLL on, remove the HNP/SRP and set the PHY */
trdtim = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5;
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 04ffd7640c33..f9c99803a43d 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -3688,6 +3688,7 @@ static void ffs_closed(struct ffs_data *ffs)
{
struct ffs_dev *ffs_obj;
struct f_fs_opts *opts;
+ struct config_item *ci;

ENTER();
ffs_dev_lock();
@@ -3711,8 +3712,11 @@ static void ffs_closed(struct ffs_data *ffs)
|| !atomic_read(&opts->func_inst.group.cg_item.ci_kref.refcount))
goto done;

- unregister_gadget_item(ffs_obj->opts->
- func_inst.group.cg_item.ci_parent->ci_parent);
+ ci = opts->func_inst.group.cg_item.ci_parent->ci_parent;
+ ffs_dev_unlock();
+
+ unregister_gadget_item(ci);
+ return;
done:
ffs_dev_unlock();
}
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c
index 79ddcb05d126..85d3e648bdea 100644
--- a/drivers/vfio/vfio_iommu_spapr_tce.c
+++ b/drivers/vfio/vfio_iommu_spapr_tce.c
@@ -1292,6 +1292,10 @@ static int tce_iommu_attach_group(void *iommu_data,
/* pr_debug("tce_vfio: Attaching group #%u to iommu %p\n",
iommu_group_id(iommu_group), iommu_group); */
table_group = iommu_group_get_iommudata(iommu_group);
+ if (!table_group) {
+ ret = -ENODEV;
+ goto unlock_exit;
+ }

if (tce_groups_attached(container) && (!table_group->ops ||
!table_group->ops->take_ownership ||
diff --git a/drivers/watchdog/bcm_kona_wdt.c b/drivers/watchdog/bcm_kona_wdt.c
index e0c98423f2c9..11a72bc2c71b 100644
--- a/drivers/watchdog/bcm_kona_wdt.c
+++ b/drivers/watchdog/bcm_kona_wdt.c
@@ -304,6 +304,8 @@ static int bcm_kona_wdt_probe(struct platform_device *pdev)
if (!wdt)
return -ENOMEM;

+ spin_lock_init(&wdt->lock);
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
wdt->base = devm_ioremap_resource(dev, res);
if (IS_ERR(wdt->base))
@@ -316,7 +318,6 @@ static int bcm_kona_wdt_probe(struct platform_device *pdev)
return ret;
}

- spin_lock_init(&wdt->lock);
platform_set_drvdata(pdev, wdt);
watchdog_set_drvdata(&bcm_kona_wdt_wdd, wdt);
bcm_kona_wdt_wdd.parent = &pdev->dev;
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 8e7a3d646531..679f79f68182 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -409,9 +409,9 @@ dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
if (map == SWIOTLB_MAP_ERROR)
return DMA_ERROR_CODE;

+ dev_addr = xen_phys_to_bus(map);
xen_dma_map_page(dev, pfn_to_page(map >> PAGE_SHIFT),
dev_addr, map & ~PAGE_MASK, size, dir, attrs);
- dev_addr = xen_phys_to_bus(map);

/*
* Ensure that the address returned is DMA'ble
@@ -567,13 +567,14 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
sg_dma_len(sgl) = 0;
return 0;
}
+ dev_addr = xen_phys_to_bus(map);
xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT),
dev_addr,
map & ~PAGE_MASK,
sg->length,
dir,
attrs);
- sg->dma_address = xen_phys_to_bus(map);
+ sg->dma_address = dev_addr;
} else {
/* we are not interested in the dma_addr returned by
* xen_dma_map_page, only in the potential cache flushes executed
diff --git a/fs/aio.c b/fs/aio.c
index 428484f2f841..0fcb49ad67d4 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1085,7 +1085,8 @@ static void aio_complete(struct kiocb *kiocb, long res, long res2)
* Tell lockdep we inherited freeze protection from submission
* thread.
*/
- __sb_writers_acquired(file_inode(file)->i_sb, SB_FREEZE_WRITE);
+ if (S_ISREG(file_inode(file)->i_mode))
+ __sb_writers_acquired(file_inode(file)->i_sb, SB_FREEZE_WRITE);
file_end_write(file);
}

@@ -1492,7 +1493,8 @@ static ssize_t aio_write(struct kiocb *req, struct iocb *iocb, bool vectored,
* by telling it the lock got released so that it doesn't
* complain about held lock when we return to userspace.
*/
- __sb_writers_release(file_inode(file)->i_sb, SB_FREEZE_WRITE);
+ if (S_ISREG(file_inode(file)->i_mode))
+ __sb_writers_release(file_inode(file)->i_sb, SB_FREEZE_WRITE);
}
kfree(iovec);
return ret;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 2472af2798c7..cfd724f98332 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2296,6 +2296,7 @@ static int elf_core_dump(struct coredump_params *cprm)
goto end_coredump;
}
}
+ dump_truncate(cprm);

if (!elf_core_write_extra_data(cprm))
goto end_coredump;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index bddbae796941..a2a014b19f18 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4480,8 +4480,19 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
if (found_type > min_type) {
del_item = 1;
} else {
- if (item_end < new_size)
+ if (item_end < new_size) {
+ /*
+ * With NO_HOLES mode, for the following mapping
+ *
+ * [0-4k][hole][8k-12k]
+ *
+ * if truncating isize down to 6k, it ends up
+ * isize being 8k.
+ */
+ if (btrfs_fs_incompat(root->fs_info, NO_HOLES))
+ last_size = new_size;
break;
+ }
if (found_key.offset >= new_size)
del_item = 1;
else
@@ -7235,7 +7246,6 @@ static struct extent_map *btrfs_create_dio_extent(struct inode *inode,
struct extent_map *em = NULL;
int ret;

- down_read(&BTRFS_I(inode)->dio_sem);
if (type != BTRFS_ORDERED_NOCOW) {
em = create_pinned_em(inode, start, len, orig_start,
block_start, block_len, orig_block_len,
@@ -7254,7 +7264,6 @@ static struct extent_map *btrfs_create_dio_extent(struct inode *inode,
em = ERR_PTR(ret);
}
out:
- up_read(&BTRFS_I(inode)->dio_sem);

return em;
}
@@ -8707,6 +8716,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
dio_data.unsubmitted_oe_range_start = (u64)offset;
dio_data.unsubmitted_oe_range_end = (u64)offset;
current->journal_info = &dio_data;
+ down_read(&BTRFS_I(inode)->dio_sem);
} else if (test_bit(BTRFS_INODE_READDIO_NEED_LOCK,
&BTRFS_I(inode)->runtime_flags)) {
inode_dio_end(inode);
@@ -8719,6 +8729,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
iter, btrfs_get_blocks_direct, NULL,
btrfs_submit_direct, flags);
if (iov_iter_rw(iter) == WRITE) {
+ up_read(&BTRFS_I(inode)->dio_sem);
current->journal_info = NULL;
if (ret < 0 && ret != -EIOCBQUEUED) {
if (dio_data.reserve)
diff --git a/fs/coredump.c b/fs/coredump.c
index eb9c92c9b20f..4407e27beca9 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -833,3 +833,21 @@ int dump_align(struct coredump_params *cprm, int align)
return mod ? dump_skip(cprm, align - mod) : 1;
}
EXPORT_SYMBOL(dump_align);
+
+/*
+ * Ensures that file size is big enough to contain the current file
+ * postion. This prevents gdb from complaining about a truncated file
+ * if the last "write" to the file was dump_skip.
+ */
+void dump_truncate(struct coredump_params *cprm)
+{
+ struct file *file = cprm->file;
+ loff_t offset;
+
+ if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
+ offset = file->f_op->llseek(file, 0, SEEK_CUR);
+ if (i_size_read(file->f_mapping->host) < offset)
+ do_truncate(file->f_path.dentry, offset, 0, file);
+ }
+}
+EXPORT_SYMBOL(dump_truncate);
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 484bebc20bca..0a2115084c3f 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -279,7 +279,7 @@ static struct svc_serv *nfs_callback_create_svc(int minorversion)
printk(KERN_WARNING "nfs_callback_create_svc: no kthread, %d users??\n",
cb_info->users);

- serv = svc_create(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, sv_ops);
+ serv = svc_create_pooled(&nfs4_callback_program, NFS4_CALLBACK_BUFSIZE, sv_ops);
if (!serv) {
printk(KERN_ERR "nfs_callback_create_svc: create service failed\n");
return ERR_PTR(-ENOMEM);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index fc9b04941739..401ea6e4cab8 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2343,8 +2343,6 @@ static int nfs4_opendata_access(struct rpc_cred *cred,
if ((mask & ~cache.mask & (MAY_READ | MAY_EXEC)) == 0)
return 0;

- /* even though OPEN succeeded, access is denied. Close the file */
- nfs4_close_state(state, fmode);
return -EACCES;
}

@@ -8431,6 +8429,7 @@ static void nfs4_layoutget_release(void *calldata)
size_t max_pages = max_response_pages(server);

dprintk("--> %s\n", __func__);
+ nfs4_sequence_free_slot(&lgp->res.seq_res);
nfs4_free_pages(lgp->args.layout.pages, max_pages);
pnfs_put_layout_hdr(NFS_I(inode)->layout);
put_nfs_open_context(lgp->args.ctx);
@@ -8505,7 +8504,6 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags)
/* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */
if (status == 0 && lgp->res.layoutp->len)
lseg = pnfs_layout_process(lgp);
- nfs4_sequence_free_slot(&lgp->res.seq_res);
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, status);
if (status)
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 636abcbd4650..5e8709aa1e7e 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -2242,13 +2242,13 @@ static void o2hb_heartbeat_group_drop_item(struct config_group *group,
spin_unlock(&o2hb_live_lock);
}

-static ssize_t o2hb_heartbeat_group_threshold_show(struct config_item *item,
+static ssize_t o2hb_heartbeat_group_dead_threshold_show(struct config_item *item,
char *page)
{
return sprintf(page, "%u\n", o2hb_dead_threshold);
}

-static ssize_t o2hb_heartbeat_group_threshold_store(struct config_item *item,
+static ssize_t o2hb_heartbeat_group_dead_threshold_store(struct config_item *item,
const char *page, size_t count)
{
unsigned long tmp;
@@ -2297,11 +2297,11 @@ static ssize_t o2hb_heartbeat_group_mode_store(struct config_item *item,

}

-CONFIGFS_ATTR(o2hb_heartbeat_group_, threshold);
+CONFIGFS_ATTR(o2hb_heartbeat_group_, dead_threshold);
CONFIGFS_ATTR(o2hb_heartbeat_group_, mode);

static struct configfs_attribute *o2hb_heartbeat_group_attrs[] = {
- &o2hb_heartbeat_group_attr_threshold,
+ &o2hb_heartbeat_group_attr_dead_threshold,
&o2hb_heartbeat_group_attr_mode,
NULL,
};
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index c201017b5730..97498be2ca2e 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -243,6 +243,8 @@ struct bpf_map *bpf_map_inc(struct bpf_map *map, bool uref);
void bpf_map_put_with_uref(struct bpf_map *map);
void bpf_map_put(struct bpf_map *map);
int bpf_map_precharge_memlock(u32 pages);
+void *bpf_map_area_alloc(size_t size);
+void bpf_map_area_free(void *base);

extern int sysctl_unprivileged_bpf_disabled;

diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index d016a121a8c4..28ffa94aed6b 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -14,6 +14,7 @@ struct coredump_params;
extern int dump_skip(struct coredump_params *cprm, size_t nr);
extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
extern int dump_align(struct coredump_params *cprm, int align);
+extern void dump_truncate(struct coredump_params *cprm);
#ifdef CONFIG_COREDUMP
extern void do_coredump(const siginfo_t *siginfo);
#else
diff --git a/include/linux/phy.h b/include/linux/phy.h
index bd22670e2182..6c9b1e0006ee 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -401,6 +401,9 @@ struct phy_device {
u32 advertising;
u32 lp_advertising;

+ /* Energy efficient ethernet modes which should be prohibited */
+ u32 eee_broken_modes;
+
int autoneg;

int link_timeout;
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 31947b9c21d6..835c30e491c8 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -944,10 +944,6 @@ struct xfrm_dst {
struct flow_cache_object flo;
struct xfrm_policy *pols[XFRM_POLICY_TYPE_MAX];
int num_pols, num_xfrms;
-#ifdef CONFIG_XFRM_SUB_POLICY
- struct flowi *origin;
- struct xfrm_selector *partner;
-#endif
u32 xfrm_genid;
u32 policy_genid;
u32 route_mtu_cached;
@@ -963,12 +959,6 @@ static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)
dst_release(xdst->route);
if (likely(xdst->u.dst.xfrm))
xfrm_state_put(xdst->u.dst.xfrm);
-#ifdef CONFIG_XFRM_SUB_POLICY
- kfree(xdst->origin);
- xdst->origin = NULL;
- kfree(xdst->partner);
- xdst->partner = NULL;
-#endif
}
#endif

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 8e547231c1b7..5c22e8cab24b 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1368,6 +1368,8 @@ enum ethtool_link_mode_bit_indices {
ETHTOOL_LINK_MODE_10000baseLR_Full_BIT = 44,
ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT = 45,
ETHTOOL_LINK_MODE_10000baseER_Full_BIT = 46,
+ ETHTOOL_LINK_MODE_2500baseT_Full_BIT = 47,
+ ETHTOOL_LINK_MODE_5000baseT_Full_BIT = 48,

/* Last allowed bit for __ETHTOOL_LINK_MODE_LEGACY_MASK is bit
@@ -1377,7 +1379,7 @@ enum ethtool_link_mode_bit_indices {
*/

__ETHTOOL_LINK_MODE_LAST
- = ETHTOOL_LINK_MODE_10000baseER_Full_BIT,
+ = ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
};

#define __ETHTOOL_LINK_MODE_LEGACY_MASK(base_name) \
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index a2ac051c342f..f3721e150d94 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -11,7 +11,6 @@
*/
#include <linux/bpf.h>
#include <linux/err.h>
-#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/filter.h>
@@ -74,14 +73,10 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr)
if (array_size >= U32_MAX - PAGE_SIZE)
return ERR_PTR(-ENOMEM);

-
/* allocate all map elements and zero-initialize them */
- array = kzalloc(array_size, GFP_USER | __GFP_NOWARN);
- if (!array) {
- array = vzalloc(array_size);
- if (!array)
- return ERR_PTR(-ENOMEM);
- }
+ array = bpf_map_area_alloc(array_size);
+ if (!array)
+ return ERR_PTR(-ENOMEM);

/* copy mandatory map attributes */
array->map.map_type = attr->map_type;
@@ -97,7 +92,7 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr)

if (array_size >= U32_MAX - PAGE_SIZE ||
elem_size > PCPU_MIN_UNIT_SIZE || bpf_array_alloc_percpu(array)) {
- kvfree(array);
+ bpf_map_area_free(array);
return ERR_PTR(-ENOMEM);
}
out:
@@ -262,7 +257,7 @@ static void array_map_free(struct bpf_map *map)
if (array->map.map_type == BPF_MAP_TYPE_PERCPU_ARRAY)
bpf_array_free_percpu(array);

- kvfree(array);
+ bpf_map_area_free(array);
}

static const struct bpf_map_ops array_ops = {
@@ -319,7 +314,8 @@ static void fd_array_map_free(struct bpf_map *map)
/* make sure it's empty */
for (i = 0; i < array->map.max_entries; i++)
BUG_ON(array->ptrs[i] != NULL);
- kvfree(array);
+
+ bpf_map_area_free(array);
}

static void *fd_array_map_lookup_elem(struct bpf_map *map, void *key)
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index ad1bc67aff1b..ad2f0ed75471 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -13,7 +13,6 @@
#include <linux/bpf.h>
#include <linux/jhash.h>
#include <linux/filter.h>
-#include <linux/vmalloc.h>
#include "percpu_freelist.h"

struct bucket {
@@ -84,14 +83,15 @@ static void htab_free_elems(struct bpf_htab *htab)
free_percpu(pptr);
}
free_elems:
- vfree(htab->elems);
+ bpf_map_area_free(htab->elems);
}

static int prealloc_elems_and_freelist(struct bpf_htab *htab)
{
int err = -ENOMEM, i;

- htab->elems = vzalloc(htab->elem_size * htab->map.max_entries);
+ htab->elems = bpf_map_area_alloc(htab->elem_size *
+ htab->map.max_entries);
if (!htab->elems)
return -ENOMEM;

@@ -227,14 +227,10 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr)
goto free_htab;

err = -ENOMEM;
- htab->buckets = kmalloc_array(htab->n_buckets, sizeof(struct bucket),
- GFP_USER | __GFP_NOWARN);
-
- if (!htab->buckets) {
- htab->buckets = vmalloc(htab->n_buckets * sizeof(struct bucket));
- if (!htab->buckets)
- goto free_htab;
- }
+ htab->buckets = bpf_map_area_alloc(htab->n_buckets *
+ sizeof(struct bucket));
+ if (!htab->buckets)
+ goto free_htab;

for (i = 0; i < htab->n_buckets; i++) {
INIT_HLIST_HEAD(&htab->buckets[i].head);
@@ -258,7 +254,7 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr)
free_extra_elems:
free_percpu(htab->extra_elems);
free_buckets:
- kvfree(htab->buckets);
+ bpf_map_area_free(htab->buckets);
free_htab:
kfree(htab);
return ERR_PTR(err);
@@ -715,7 +711,7 @@ static void htab_map_free(struct bpf_map *map)
pcpu_freelist_destroy(&htab->freelist);
}
free_percpu(htab->extra_elems);
- kvfree(htab->buckets);
+ bpf_map_area_free(htab->buckets);
kfree(htab);
}

diff --git a/kernel/bpf/stackmap.c b/kernel/bpf/stackmap.c
index 732ae16d12b7..be8519148c25 100644
--- a/kernel/bpf/stackmap.c
+++ b/kernel/bpf/stackmap.c
@@ -7,7 +7,6 @@
#include <linux/bpf.h>
#include <linux/jhash.h>
#include <linux/filter.h>
-#include <linux/vmalloc.h>
#include <linux/stacktrace.h>
#include <linux/perf_event.h>
#include "percpu_freelist.h"
@@ -32,7 +31,7 @@ static int prealloc_elems_and_freelist(struct bpf_stack_map *smap)
u32 elem_size = sizeof(struct stack_map_bucket) + smap->map.value_size;
int err;

- smap->elems = vzalloc(elem_size * smap->map.max_entries);
+ smap->elems = bpf_map_area_alloc(elem_size * smap->map.max_entries);
if (!smap->elems)
return -ENOMEM;

@@ -45,7 +44,7 @@ static int prealloc_elems_and_freelist(struct bpf_stack_map *smap)
return 0;

free_elems:
- vfree(smap->elems);
+ bpf_map_area_free(smap->elems);
return err;
}

@@ -76,12 +75,9 @@ static struct bpf_map *stack_map_alloc(union bpf_attr *attr)
if (cost >= U32_MAX - PAGE_SIZE)
return ERR_PTR(-E2BIG);

- smap = kzalloc(cost, GFP_USER | __GFP_NOWARN);
- if (!smap) {
- smap = vzalloc(cost);
- if (!smap)
- return ERR_PTR(-ENOMEM);
- }
+ smap = bpf_map_area_alloc(cost);
+ if (!smap)
+ return ERR_PTR(-ENOMEM);

err = -E2BIG;
cost += n_buckets * (value_size + sizeof(struct stack_map_bucket));
@@ -112,7 +108,7 @@ static struct bpf_map *stack_map_alloc(union bpf_attr *attr)
put_buffers:
put_callchain_buffers();
free_smap:
- kvfree(smap);
+ bpf_map_area_free(smap);
return ERR_PTR(err);
}

@@ -262,9 +258,9 @@ static void stack_map_free(struct bpf_map *map)
/* wait for bpf programs to complete before freeing stack map */
synchronize_rcu();

- vfree(smap->elems);
+ bpf_map_area_free(smap->elems);
pcpu_freelist_destroy(&smap->freelist);
- kvfree(smap);
+ bpf_map_area_free(smap);
put_callchain_buffers();
}

diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 237f3d6a7ddc..72ea91df71c9 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -12,6 +12,8 @@
#include <linux/bpf.h>
#include <linux/syscalls.h>
#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mmzone.h>
#include <linux/anon_inodes.h>
#include <linux/file.h>
#include <linux/license.h>
@@ -48,6 +50,30 @@ void bpf_register_map_type(struct bpf_map_type_list *tl)
list_add(&tl->list_node, &bpf_map_types);
}

+void *bpf_map_area_alloc(size_t size)
+{
+ /* We definitely need __GFP_NORETRY, so OOM killer doesn't
+ * trigger under memory pressure as we really just want to
+ * fail instead.
+ */
+ const gfp_t flags = __GFP_NOWARN | __GFP_NORETRY | __GFP_ZERO;
+ void *area;
+
+ if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
+ area = kmalloc(size, GFP_USER | flags);
+ if (area != NULL)
+ return area;
+ }
+
+ return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | flags,
+ PAGE_KERNEL);
+}
+
+void bpf_map_area_free(void *area)
+{
+ kvfree(area);
+}
+
int bpf_map_precharge_memlock(u32 pages)
{
struct user_struct *user = get_current_user();
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 11cc1d83c770..30ccc7029d18 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2272,7 +2272,7 @@ static int __perf_install_in_context(void *info)
struct perf_event_context *ctx = event->ctx;
struct perf_cpu_context *cpuctx = __get_cpu_context(ctx);
struct perf_event_context *task_ctx = cpuctx->task_ctx;
- bool activate = true;
+ bool reprogram = true;
int ret = 0;

raw_spin_lock(&cpuctx->ctx.lock);
@@ -2280,27 +2280,26 @@ static int __perf_install_in_context(void *info)
raw_spin_lock(&ctx->lock);
task_ctx = ctx;

- /* If we're on the wrong CPU, try again */
- if (task_cpu(ctx->task) != smp_processor_id()) {
- ret = -ESRCH;
- goto unlock;
- }
+ reprogram = (ctx->task == current);

/*
- * If we're on the right CPU, see if the task we target is
- * current, if not we don't have to activate the ctx, a future
- * context switch will do that for us.
+ * If the task is running, it must be running on this CPU,
+ * otherwise we cannot reprogram things.
+ *
+ * If its not running, we don't care, ctx->lock will
+ * serialize against it becoming runnable.
*/
- if (ctx->task != current)
- activate = false;
- else
- WARN_ON_ONCE(cpuctx->task_ctx && cpuctx->task_ctx != ctx);
+ if (task_curr(ctx->task) && !reprogram) {
+ ret = -ESRCH;
+ goto unlock;
+ }

+ WARN_ON_ONCE(reprogram && cpuctx->task_ctx && cpuctx->task_ctx != ctx);
} else if (task_ctx) {
raw_spin_lock(&task_ctx->lock);
}

- if (activate) {
+ if (reprogram) {
ctx_sched_out(ctx, cpuctx, EVENT_TIME);
add_event_to_ctx(event, ctx);
ctx_resched(cpuctx, task_ctx);
@@ -2351,13 +2350,36 @@ perf_install_in_context(struct perf_event_context *ctx,
/*
* Installing events is tricky because we cannot rely on ctx->is_active
* to be set in case this is the nr_events 0 -> 1 transition.
+ *
+ * Instead we use task_curr(), which tells us if the task is running.
+ * However, since we use task_curr() outside of rq::lock, we can race
+ * against the actual state. This means the result can be wrong.
+ *
+ * If we get a false positive, we retry, this is harmless.
+ *
+ * If we get a false negative, things are complicated. If we are after
+ * perf_event_context_sched_in() ctx::lock will serialize us, and the
+ * value must be correct. If we're before, it doesn't matter since
+ * perf_event_context_sched_in() will program the counter.
+ *
+ * However, this hinges on the remote context switch having observed
+ * our task->perf_event_ctxp[] store, such that it will in fact take
+ * ctx::lock in perf_event_context_sched_in().
+ *
+ * We do this by task_function_call(), if the IPI fails to hit the task
+ * we know any future context switch of task must see the
+ * perf_event_ctpx[] store.
*/
-again:
+
/*
- * Cannot use task_function_call() because we need to run on the task's
- * CPU regardless of whether its current or not.
+ * This smp_mb() orders the task->perf_event_ctxp[] store with the
+ * task_cpu() load, such that if the IPI then does not find the task
+ * running, a future context switch of that task must observe the
+ * store.
*/
- if (!cpu_function_call(task_cpu(task), __perf_install_in_context, event))
+ smp_mb();
+again:
+ if (!task_function_call(task, __perf_install_in_context, event))
return;

raw_spin_lock_irq(&ctx->lock);
@@ -2371,12 +2393,16 @@ perf_install_in_context(struct perf_event_context *ctx,
raw_spin_unlock_irq(&ctx->lock);
return;
}
- raw_spin_unlock_irq(&ctx->lock);
/*
- * Since !ctx->is_active doesn't mean anything, we must IPI
- * unconditionally.
+ * If the task is not running, ctx->lock will avoid it becoming so,
+ * thus we can safely install the event.
*/
- goto again;
+ if (task_curr(task)) {
+ raw_spin_unlock_irq(&ctx->lock);
+ goto again;
+ }
+ add_event_to_ctx(event, ctx);
+ raw_spin_unlock_irq(&ctx->lock);
}

/*
diff --git a/kernel/panic.c b/kernel/panic.c
index e6480e20379e..dbec387099b1 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -249,7 +249,7 @@ void panic(const char *fmt, ...)
* Delay timeout seconds before rebooting the machine.
* We can't use the "normal" timers since we just panicked.
*/
- pr_emerg("Rebooting in %d seconds..", panic_timeout);
+ pr_emerg("Rebooting in %d seconds..\n", panic_timeout);

for (i = 0; i < panic_timeout * 1000; i += PANIC_TIMER_STEP) {
touch_nmi_watchdog();
diff --git a/kernel/sched/loadavg.c b/kernel/sched/loadavg.c
index a2d6eb71f06b..ec91fcc09bfe 100644
--- a/kernel/sched/loadavg.c
+++ b/kernel/sched/loadavg.c
@@ -201,8 +201,9 @@ void calc_load_exit_idle(void)
struct rq *this_rq = this_rq();

/*
- * If we're still before the sample window, we're done.
+ * If we're still before the pending sample window, we're done.
*/
+ this_rq->calc_load_update = calc_load_update;
if (time_before(jiffies, this_rq->calc_load_update))
return;

@@ -211,7 +212,6 @@ void calc_load_exit_idle(void)
* accounted through the nohz accounting, so skip the entire deal and
* sync up for the next window.
*/
- this_rq->calc_load_update = calc_load_update;
if (time_before(jiffies, this_rq->calc_load_update + 10))
this_rq->calc_load_update += LOAD_FREQ;
}
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index ad1d2962d129..b7812df04437 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -456,11 +456,11 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
: 1UL << (BITS_PER_LONG - IO_TLB_SHIFT);

/*
- * For mappings greater than a page, we limit the stride (and
- * hence alignment) to a page size.
+ * For mappings greater than or equal to a page, we limit the stride
+ * (and hence alignment) to a page size.
*/
nslots = ALIGN(size, 1 << IO_TLB_SHIFT) >> IO_TLB_SHIFT;
- if (size > PAGE_SIZE)
+ if (size >= PAGE_SIZE)
stride = (1 << (PAGE_SHIFT - IO_TLB_SHIFT));
else
stride = 1;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index d5b2b759f76f..e7d5db958538 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1227,8 +1227,11 @@ int do_huge_pmd_numa_page(struct fault_env *fe, pmd_t pmd)
*/
if (unlikely(pmd_trans_migrating(*fe->pmd))) {
page = pmd_page(*fe->pmd);
+ if (!get_page_unless_zero(page))
+ goto out_unlock;
spin_unlock(fe->ptl);
wait_on_page_locked(page);
+ put_page(page);
goto out;
}

@@ -1260,8 +1263,11 @@ int do_huge_pmd_numa_page(struct fault_env *fe, pmd_t pmd)

/* Migration could have started since the pmd_trans_migrating check */
if (!page_locked) {
+ if (!get_page_unless_zero(page))
+ goto out_unlock;
spin_unlock(fe->ptl);
wait_on_page_locked(page);
+ put_page(page);
page_nid = -1;
goto out;
}
diff --git a/mm/swap_cgroup.c b/mm/swap_cgroup.c
index 454d6d7509ed..3405b4ee1757 100644
--- a/mm/swap_cgroup.c
+++ b/mm/swap_cgroup.c
@@ -204,6 +204,8 @@ void swap_cgroup_swapoff(int type)
struct page *page = map[i];
if (page)
__free_page(page);
+ if (!(i % SWAP_CLUSTER_MAX))
+ cond_resched();
}
vfree(map);
}
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index f2481cb4e6b2..195de42bea1f 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -244,11 +244,21 @@ struct page *vmalloc_to_page(const void *vmalloc_addr)
*/
VIRTUAL_BUG_ON(!is_vmalloc_or_module_addr(vmalloc_addr));

+ /*
+ * Don't dereference bad PUD or PMD (below) entries. This will also
+ * identify huge mappings, which we may encounter on architectures
+ * that define CONFIG_HAVE_ARCH_HUGE_VMAP=y. Such regions will be
+ * identified as vmalloc addresses by is_vmalloc_addr(), but are
+ * not [unambiguously] associated with a struct page, so there is
+ * no correct value to return for them.
+ */
if (!pgd_none(*pgd)) {
pud_t *pud = pud_offset(pgd, addr);
- if (!pud_none(*pud)) {
+ WARN_ON_ONCE(pud_bad(*pud));
+ if (!pud_none(*pud) && !pud_bad(*pud)) {
pmd_t *pmd = pmd_offset(pud, addr);
- if (!pmd_none(*pmd)) {
+ WARN_ON_ONCE(pmd_bad(*pmd));
+ if (!pmd_none(*pmd) && !pmd_bad(*pmd)) {
pte_t *ptep, pte;

ptep = pte_offset_map(pmd, addr);
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index f2531ad66b68..8d213f974448 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -277,7 +277,8 @@ static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)
return 0;

out_free_newdev:
- free_netdev(new_dev);
+ if (new_dev->reg_state == NETREG_UNINITIALIZED)
+ free_netdev(new_dev);
return err;
}

diff --git a/net/caif/cfpkt_skbuff.c b/net/caif/cfpkt_skbuff.c
index 59ce1fcc220c..71b6ab240dea 100644
--- a/net/caif/cfpkt_skbuff.c
+++ b/net/caif/cfpkt_skbuff.c
@@ -81,11 +81,7 @@ static struct cfpkt *cfpkt_create_pfx(u16 len, u16 pfx)
{
struct sk_buff *skb;

- if (likely(in_interrupt()))
- skb = alloc_skb(len + pfx, GFP_ATOMIC);
- else
- skb = alloc_skb(len + pfx, GFP_KERNEL);
-
+ skb = alloc_skb(len + pfx, GFP_ATOMIC);
if (unlikely(skb == NULL))
return NULL;

diff --git a/net/core/dev.c b/net/core/dev.c
index 2e04fd188081..97f806116ae9 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1250,8 +1250,9 @@ int dev_set_alias(struct net_device *dev, const char *alias, size_t len)
if (!new_ifalias)
return -ENOMEM;
dev->ifalias = new_ifalias;
+ memcpy(dev->ifalias, alias, len);
+ dev->ifalias[len] = 0;

- strlcpy(dev->ifalias, alias, len+1);
return len;
}

diff --git a/net/core/dst.c b/net/core/dst.c
index 656b70d39690..39cc11968cf9 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -470,6 +470,20 @@ static int dst_dev_event(struct notifier_block *this, unsigned long event,
spin_lock_bh(&dst_garbage.lock);
dst = dst_garbage.list;
dst_garbage.list = NULL;
+ /* The code in dst_ifdown places a hold on the loopback device.
+ * If the gc entry processing is set to expire after a lengthy
+ * interval, this hold can cause netdev_wait_allrefs() to hang
+ * out and wait for a long time -- until the the loopback
+ * interface is released. If we're really unlucky, it'll emit
+ * pr_emerg messages to console too. Reset the interval here,
+ * so dst cleanups occur in a more timely fashion.
+ */
+ if (dst_garbage.timer_inc > DST_GC_INC) {
+ dst_garbage.timer_inc = DST_GC_INC;
+ dst_garbage.timer_expires = DST_GC_MIN;
+ mod_delayed_work(system_wq, &dst_gc_work,
+ dst_garbage.timer_expires);
+ }
spin_unlock_bh(&dst_garbage.lock);

if (last)
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 072c1f4998c9..e9989b835a66 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1704,7 +1704,7 @@ static noinline_for_stack int ethtool_get_channels(struct net_device *dev,
static noinline_for_stack int ethtool_set_channels(struct net_device *dev,
void __user *useraddr)
{
- struct ethtool_channels channels, max;
+ struct ethtool_channels channels, max = { .cmd = ETHTOOL_GCHANNELS };
u32 max_rx_in_use = 0;

if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels)
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 1d9160794e55..9c6fd7f83a4a 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -937,6 +937,7 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev,
+ nla_total_size(1) /* IFLA_LINKMODE */
+ nla_total_size(4) /* IFLA_CARRIER_CHANGES */
+ nla_total_size(4) /* IFLA_LINK_NETNSID */
+ + nla_total_size(4) /* IFLA_GROUP */
+ nla_total_size(ext_filter_mask
& RTEXT_FILTER_VF ? 4 : 0) /* IFLA_NUM_VF */
+ rtnl_vfinfo_size(dev, ext_filter_mask) /* IFLA_VFINFO_LIST */
@@ -1130,6 +1131,8 @@ static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
struct ifla_vf_mac vf_mac;
struct ifla_vf_info ivi;

+ memset(&ivi, 0, sizeof(ivi));
+
/* Not all SR-IOV capable drivers support the
* spoofcheck and "RSS query enable" query. Preset to
* -1 so the user space tool can detect that the driver
@@ -1138,7 +1141,6 @@ static noinline_for_stack int rtnl_fill_vfinfo(struct sk_buff *skb,
ivi.spoofchk = -1;
ivi.rss_query_en = -1;
ivi.trusted = -1;
- memset(ivi.mac, 0, sizeof(ivi.mac));
/* The default value for VF link state is "auto"
* IFLA_VF_LINK_STATE_AUTO which equals zero
*/
@@ -1464,6 +1466,7 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_LINK_NETNSID] = { .type = NLA_S32 },
[IFLA_PROTO_DOWN] = { .type = NLA_U8 },
[IFLA_XDP] = { .type = NLA_NESTED },
+ [IFLA_GROUP] = { .type = NLA_U32 },
};

static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index b1dc096d22f8..403593bd2b83 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -188,12 +188,6 @@ static inline void dnrt_free(struct dn_route *rt)
call_rcu_bh(&rt->dst.rcu_head, dst_rcu_free);
}

-static inline void dnrt_drop(struct dn_route *rt)
-{
- dst_release(&rt->dst);
- call_rcu_bh(&rt->dst.rcu_head, dst_rcu_free);
-}
-
static void dn_dst_check_expire(unsigned long dummy)
{
int i;
@@ -248,7 +242,7 @@ static int dn_dst_gc(struct dst_ops *ops)
}
*rtp = rt->dst.dn_next;
rt->dst.dn_next = NULL;
- dnrt_drop(rt);
+ dnrt_free(rt);
break;
}
spin_unlock_bh(&dn_rt_hash_table[i].lock);
@@ -350,7 +344,7 @@ static int dn_insert_route(struct dn_route *rt, unsigned int hash, struct dn_rou
dst_use(&rth->dst, now);
spin_unlock_bh(&dn_rt_hash_table[hash].lock);

- dnrt_drop(rt);
+ dst_free(&rt->dst);
*rp = rth;
return 0;
}
@@ -380,7 +374,7 @@ static void dn_run_flush(unsigned long dummy)
for(; rt; rt = next) {
next = rcu_dereference_raw(rt->dst.dn_next);
RCU_INIT_POINTER(rt->dst.dn_next, NULL);
- dst_free((struct dst_entry *)rt);
+ dnrt_free(rt);
}

nothing_to_declare:
@@ -1187,7 +1181,7 @@ static int dn_route_output_slow(struct dst_entry **pprt, const struct flowidn *o
if (dev_out->flags & IFF_LOOPBACK)
flags |= RTCF_LOCAL;

- rt = dst_alloc(&dn_dst_ops, dev_out, 1, DST_OBSOLETE_NONE, DST_HOST);
+ rt = dst_alloc(&dn_dst_ops, dev_out, 0, DST_OBSOLETE_NONE, DST_HOST);
if (rt == NULL)
goto e_nobufs;

diff --git a/net/decnet/netfilter/dn_rtmsg.c b/net/decnet/netfilter/dn_rtmsg.c
index 85f2fdc360c2..29246bc9a7b4 100644
--- a/net/decnet/netfilter/dn_rtmsg.c
+++ b/net/decnet/netfilter/dn_rtmsg.c
@@ -102,7 +102,9 @@ static inline void dnrmg_receive_user_skb(struct sk_buff *skb)
{
struct nlmsghdr *nlh = nlmsg_hdr(skb);

- if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
+ if (skb->len < sizeof(*nlh) ||
+ nlh->nlmsg_len < sizeof(*nlh) ||
+ skb->len < nlh->nlmsg_len)
return;

if (!netlink_capable(skb, CAP_NET_ADMIN))
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 3ff9d97cf56b..079d76bc204c 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1103,10 +1103,8 @@ static int dsa_slave_phy_connect(struct dsa_slave_priv *p,
/* Use already configured phy mode */
if (p->phy_interface == PHY_INTERFACE_MODE_NA)
p->phy_interface = p->phy->interface;
- phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
- p->phy_interface);
-
- return 0;
+ return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
+ p->phy_interface);
}

static int dsa_slave_phy_setup(struct dsa_slave_priv *p,
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 1bc623d7f754..19930da56b0a 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -1112,6 +1112,7 @@ static void igmpv3_add_delrec(struct in_device *in_dev, struct ip_mc_list *im)
pmc = kzalloc(sizeof(*pmc), GFP_KERNEL);
if (!pmc)
return;
+ spin_lock_init(&pmc->lock);
spin_lock_bh(&im->lock);
pmc->interface = im->interface;
in_dev_hold(in_dev);
@@ -2071,21 +2072,26 @@ static int ip_mc_add_src(struct in_device *in_dev, __be32 *pmca, int sfmode,

static void ip_mc_clear_src(struct ip_mc_list *pmc)
{
- struct ip_sf_list *psf, *nextpsf;
+ struct ip_sf_list *psf, *nextpsf, *tomb, *sources;

- for (psf = pmc->tomb; psf; psf = nextpsf) {
+ spin_lock_bh(&pmc->lock);
+ tomb = pmc->tomb;
+ pmc->tomb = NULL;
+ sources = pmc->sources;
+ pmc->sources = NULL;
+ pmc->sfmode = MCAST_EXCLUDE;
+ pmc->sfcount[MCAST_INCLUDE] = 0;
+ pmc->sfcount[MCAST_EXCLUDE] = 1;
+ spin_unlock_bh(&pmc->lock);
+
+ for (psf = tomb; psf; psf = nextpsf) {
nextpsf = psf->sf_next;
kfree(psf);
}
- pmc->tomb = NULL;
- for (psf = pmc->sources; psf; psf = nextpsf) {
+ for (psf = sources; psf; psf = nextpsf) {
nextpsf = psf->sf_next;
kfree(psf);
}
- pmc->sources = NULL;
- pmc->sfmode = MCAST_EXCLUDE;
- pmc->sfcount[MCAST_INCLUDE] = 0;
- pmc->sfcount[MCAST_EXCLUDE] = 1;
}

/* Join a multicast group
diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c
index b3cc1335adbc..c0cc6aa8cfaa 100644
--- a/net/ipv4/netfilter.c
+++ b/net/ipv4/netfilter.c
@@ -23,7 +23,8 @@ int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_t
struct rtable *rt;
struct flowi4 fl4 = {};
__be32 saddr = iph->saddr;
- __u8 flags = skb->sk ? inet_sk_flowi_flags(skb->sk) : 0;
+ const struct sock *sk = skb_to_full_sk(skb);
+ __u8 flags = sk ? inet_sk_flowi_flags(sk) : 0;
struct net_device *dev = skb_dst(skb)->dev;
unsigned int hh_len;

@@ -40,7 +41,7 @@ int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_t
fl4.daddr = iph->daddr;
fl4.saddr = saddr;
fl4.flowi4_tos = RT_TOS(iph->tos);
- fl4.flowi4_oif = skb->sk ? skb->sk->sk_bound_dev_if : 0;
+ fl4.flowi4_oif = sk ? sk->sk_bound_dev_if : 0;
if (!fl4.flowi4_oif)
fl4.flowi4_oif = l3mdev_master_ifindex(dev);
fl4.flowi4_mark = skb->mark;
@@ -61,7 +62,7 @@ int ip_route_me_harder(struct net *net, struct sk_buff *skb, unsigned int addr_t
xfrm_decode_session(skb, flowi4_to_flowi(&fl4), AF_INET) == 0) {
struct dst_entry *dst = skb_dst(skb);
skb_dst_set(skb, NULL);
- dst = xfrm_lookup(net, dst, flowi4_to_flowi(&fl4), skb->sk, 0);
+ dst = xfrm_lookup(net, dst, flowi4_to_flowi(&fl4), sk, 0);
if (IS_ERR(dst))
return PTR_ERR(dst);
skb_dst_set(skb, dst);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 045738319e8b..b6f4c42cc8ce 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -315,9 +315,9 @@ static void addrconf_mod_rs_timer(struct inet6_dev *idev,
static void addrconf_mod_dad_work(struct inet6_ifaddr *ifp,
unsigned long delay)
{
- if (!delayed_work_pending(&ifp->dad_work))
- in6_ifa_hold(ifp);
- mod_delayed_work(addrconf_wq, &ifp->dad_work, delay);
+ in6_ifa_hold(ifp);
+ if (mod_delayed_work(addrconf_wq, &ifp->dad_work, delay))
+ in6_ifa_put(ifp);
}

static int snmp6_alloc_dev(struct inet6_dev *idev)
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index eea23b57c6a5..ec849d88a662 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -32,7 +32,6 @@ struct fib6_rule {
struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
int flags, pol_lookup_t lookup)
{
- struct rt6_info *rt;
struct fib_lookup_arg arg = {
.lookup_ptr = lookup,
.flags = FIB_LOOKUP_NOREF,
@@ -44,21 +43,11 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
fib_rules_lookup(net->ipv6.fib6_rules_ops,
flowi6_to_flowi(fl6), flags, &arg);

- rt = arg.result;
+ if (arg.result)
+ return arg.result;

- if (!rt) {
- dst_hold(&net->ipv6.ip6_null_entry->dst);
- return &net->ipv6.ip6_null_entry->dst;
- }
-
- if (rt->rt6i_flags & RTF_REJECT &&
- rt->dst.error == -EAGAIN) {
- ip6_rt_put(rt);
- rt = net->ipv6.ip6_null_entry;
- dst_hold(&rt->dst);
- }
-
- return &rt->dst;
+ dst_hold(&net->ipv6.ip6_null_entry->dst);
+ return &net->ipv6.ip6_null_entry->dst;
}

static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
@@ -121,7 +110,8 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
flp6->saddr = saddr;
}
err = rt->dst.error;
- goto out;
+ if (err != -EAGAIN)
+ goto out;
}
again:
ip6_rt_put(rt);
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 8c88a37392d0..636d4d893085 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -289,8 +289,7 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
struct rt6_info *rt;

rt = lookup(net, net->ipv6.fib6_main_tbl, fl6, flags);
- if (rt->rt6i_flags & RTF_REJECT &&
- rt->dst.error == -EAGAIN) {
+ if (rt->dst.error == -EAGAIN) {
ip6_rt_put(rt);
rt = net->ipv6.ip6_null_entry;
dst_hold(&rt->dst);
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 0a5922055da2..d2844ee469cb 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -542,11 +542,10 @@ static inline int ip6gre_xmit_ipv4(struct sk_buff *skb, struct net_device *dev)

memcpy(&fl6, &t->fl.u.ip6, sizeof(fl6));

- dsfield = ipv4_get_dsfield(iph);
-
if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
- fl6.flowlabel |= htonl((__u32)iph->tos << IPV6_TCLASS_SHIFT)
- & IPV6_TCLASS_MASK;
+ dsfield = ipv4_get_dsfield(iph);
+ else
+ dsfield = ip6_tclass(t->parms.flowinfo);
if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
fl6.flowi6_mark = skb->mark;

@@ -582,6 +581,9 @@ static inline int ip6gre_xmit_ipv6(struct sk_buff *skb, struct net_device *dev)
return -1;

offset = ip6_tnl_parse_tlv_enc_lim(skb, skb_network_header(skb));
+ /* ip6_tnl_parse_tlv_enc_lim() might have reallocated skb->head */
+ ipv6h = ipv6_hdr(skb);
+
if (offset > 0) {
struct ipv6_tlv_tnl_enc_lim *tel;
tel = (struct ipv6_tlv_tnl_enc_lim *)&skb_network_header(skb)[offset];
@@ -596,9 +598,11 @@ static inline int ip6gre_xmit_ipv6(struct sk_buff *skb, struct net_device *dev)

memcpy(&fl6, &t->fl.u.ip6, sizeof(fl6));

- dsfield = ipv6_get_dsfield(ipv6h);
if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
- fl6.flowlabel |= (*(__be32 *) ipv6h & IPV6_TCLASS_MASK);
+ dsfield = ipv6_get_dsfield(ipv6h);
+ else
+ dsfield = ip6_tclass(t->parms.flowinfo);
+
if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
fl6.flowlabel |= ip6_flowlabel(ipv6h);
if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 3ab32ac57ccd..fd649599620e 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1020,8 +1020,10 @@ static int ip6_dst_lookup_tail(struct net *net, const struct sock *sk,
}
#endif
if (ipv6_addr_v4mapped(&fl6->saddr) &&
- !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr)))
- return -EAFNOSUPPORT;
+ !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr))) {
+ err = -EAFNOSUPPORT;
+ goto out_err_release;
+ }

return 0;

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 116b4da06820..1fc9daa7b1d6 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1196,7 +1196,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
ipv6h = ipv6_hdr(skb);
- ip6_flow_hdr(ipv6h, INET_ECN_encapsulate(0, dsfield),
+ ip6_flow_hdr(ipv6h, dsfield,
ip6_make_flowlabel(net, skb, fl6->flowlabel, true, fl6));
ipv6h->hop_limit = hop_limit;
ipv6h->nexthdr = proto;
@@ -1231,8 +1231,6 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
if (tproto != IPPROTO_IPIP && tproto != 0)
return -1;

- dsfield = ipv4_get_dsfield(iph);
-
if (t->parms.collect_md) {
struct ip_tunnel_info *tun_info;
const struct ip_tunnel_key *key;
@@ -1246,6 +1244,7 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
fl6.flowi6_proto = IPPROTO_IPIP;
fl6.daddr = key->u.ipv6.dst;
fl6.flowlabel = key->label;
+ dsfield = ip6_tclass(key->label);
} else {
if (!(t->parms.flags & IP6_TNL_F_IGN_ENCAP_LIMIT))
encap_limit = t->parms.encap_limit;
@@ -1254,8 +1253,9 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
fl6.flowi6_proto = IPPROTO_IPIP;

if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
- fl6.flowlabel |= htonl((__u32)iph->tos << IPV6_TCLASS_SHIFT)
- & IPV6_TCLASS_MASK;
+ dsfield = ipv4_get_dsfield(iph);
+ else
+ dsfield = ip6_tclass(t->parms.flowinfo);
if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
fl6.flowi6_mark = skb->mark;
}
@@ -1263,6 +1263,8 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
if (iptunnel_handle_offloads(skb, SKB_GSO_IPXIP6))
return -1;

+ dsfield = INET_ECN_encapsulate(dsfield, ipv4_get_dsfield(iph));
+
skb_set_inner_ipproto(skb, IPPROTO_IPIP);

err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
@@ -1296,8 +1298,6 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
ip6_tnl_addr_conflict(t, ipv6h))
return -1;

- dsfield = ipv6_get_dsfield(ipv6h);
-
if (t->parms.collect_md) {
struct ip_tunnel_info *tun_info;
const struct ip_tunnel_key *key;
@@ -1311,8 +1311,11 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
fl6.flowi6_proto = IPPROTO_IPV6;
fl6.daddr = key->u.ipv6.dst;
fl6.flowlabel = key->label;
+ dsfield = ip6_tclass(key->label);
} else {
offset = ip6_tnl_parse_tlv_enc_lim(skb, skb_network_header(skb));
+ /* ip6_tnl_parse_tlv_enc_lim() might have reallocated skb->head */
+ ipv6h = ipv6_hdr(skb);
if (offset > 0) {
struct ipv6_tlv_tnl_enc_lim *tel;

@@ -1331,7 +1334,9 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
fl6.flowi6_proto = IPPROTO_IPV6;

if (t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS)
- fl6.flowlabel |= (*(__be32 *)ipv6h & IPV6_TCLASS_MASK);
+ dsfield = ipv6_get_dsfield(ipv6h);
+ else
+ dsfield = ip6_tclass(t->parms.flowinfo);
if (t->parms.flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
fl6.flowlabel |= ip6_flowlabel(ipv6h);
if (t->parms.flags & IP6_TNL_F_USE_ORIG_FWMARK)
@@ -1341,6 +1346,8 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
if (iptunnel_handle_offloads(skb, SKB_GSO_IPXIP6))
return -1;

+ dsfield = INET_ECN_encapsulate(dsfield, ipv6_get_dsfield(ipv6h));
+
skb_set_inner_ipproto(skb, IPPROTO_IPV6);

err = ip6_tnl_xmit(skb, dev, dsfield, &fl6, encap_limit, &mtu,
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index cc8e3ae9ca73..e88bcb8ff0fd 100644
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -219,7 +219,7 @@ static void snmp6_seq_show_item64(struct seq_file *seq, void __percpu *mib,
u64 buff64[SNMP_MIB_MAX];
int i;

- memset(buff64, 0, sizeof(unsigned long) * SNMP_MIB_MAX);
+ memset(buff64, 0, sizeof(u64) * SNMP_MIB_MAX);

snmp_get_cpu_field64_batch(buff64, itemlist, mib, syncpoff);
for (i = 0; itemlist[i].name; i++)
diff --git a/net/key/af_key.c b/net/key/af_key.c
index f9c9ecb0cdd3..e67c28e614b9 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1135,6 +1135,7 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
goto out;
}

+ err = -ENOBUFS;
key = ext_hdrs[SADB_EXT_KEY_AUTH - 1];
if (sa->sadb_sa_auth) {
int keysize = 0;
@@ -1146,8 +1147,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
if (key)
keysize = (key->sadb_key_bits + 7) / 8;
x->aalg = kmalloc(sizeof(*x->aalg) + keysize, GFP_KERNEL);
- if (!x->aalg)
+ if (!x->aalg) {
+ err = -ENOMEM;
goto out;
+ }
strcpy(x->aalg->alg_name, a->name);
x->aalg->alg_key_len = 0;
if (key) {
@@ -1166,8 +1169,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
goto out;
}
x->calg = kmalloc(sizeof(*x->calg), GFP_KERNEL);
- if (!x->calg)
+ if (!x->calg) {
+ err = -ENOMEM;
goto out;
+ }
strcpy(x->calg->alg_name, a->name);
x->props.calgo = sa->sadb_sa_encrypt;
} else {
@@ -1181,8 +1186,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
if (key)
keysize = (key->sadb_key_bits + 7) / 8;
x->ealg = kmalloc(sizeof(*x->ealg) + keysize, GFP_KERNEL);
- if (!x->ealg)
+ if (!x->ealg) {
+ err = -ENOMEM;
goto out;
+ }
strcpy(x->ealg->alg_name, a->name);
x->ealg->alg_key_len = 0;
if (key) {
@@ -1227,8 +1234,10 @@ static struct xfrm_state * pfkey_msg2xfrm_state(struct net *net,
struct xfrm_encap_tmpl *natt;

x->encap = kmalloc(sizeof(*x->encap), GFP_KERNEL);
- if (!x->encap)
+ if (!x->encap) {
+ err = -ENOMEM;
goto out;
+ }

natt = x->encap;
n_type = ext_hdrs[SADB_X_EXT_NAT_T_TYPE-1];
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index e702cb95b89b..3bce65183c95 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -278,6 +278,55 @@ struct l2tp_session *l2tp_session_find(struct net *net, struct l2tp_tunnel *tunn
}
EXPORT_SYMBOL_GPL(l2tp_session_find);

+/* Like l2tp_session_find() but takes a reference on the returned session.
+ * Optionally calls session->ref() too if do_ref is true.
+ */
+struct l2tp_session *l2tp_session_get(struct net *net,
+ struct l2tp_tunnel *tunnel,
+ u32 session_id, bool do_ref)
+{
+ struct hlist_head *session_list;
+ struct l2tp_session *session;
+
+ if (!tunnel) {
+ struct l2tp_net *pn = l2tp_pernet(net);
+
+ session_list = l2tp_session_id_hash_2(pn, session_id);
+
+ rcu_read_lock_bh();
+ hlist_for_each_entry_rcu(session, session_list, global_hlist) {
+ if (session->session_id == session_id) {
+ l2tp_session_inc_refcount(session);
+ if (do_ref && session->ref)
+ session->ref(session);
+ rcu_read_unlock_bh();
+
+ return session;
+ }
+ }
+ rcu_read_unlock_bh();
+
+ return NULL;
+ }
+
+ session_list = l2tp_session_id_hash(tunnel, session_id);
+ read_lock_bh(&tunnel->hlist_lock);
+ hlist_for_each_entry(session, session_list, hlist) {
+ if (session->session_id == session_id) {
+ l2tp_session_inc_refcount(session);
+ if (do_ref && session->ref)
+ session->ref(session);
+ read_unlock_bh(&tunnel->hlist_lock);
+
+ return session;
+ }
+ }
+ read_unlock_bh(&tunnel->hlist_lock);
+
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(l2tp_session_get);
+
struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
bool do_ref)
{
@@ -307,7 +356,8 @@ EXPORT_SYMBOL_GPL(l2tp_session_get_nth);
/* Lookup a session by interface name.
* This is very inefficient but is only used by management interfaces.
*/
-struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname)
+struct l2tp_session *l2tp_session_get_by_ifname(struct net *net, char *ifname,
+ bool do_ref)
{
struct l2tp_net *pn = l2tp_pernet(net);
int hash;
@@ -317,7 +367,11 @@ struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname)
for (hash = 0; hash < L2TP_HASH_SIZE_2; hash++) {
hlist_for_each_entry_rcu(session, &pn->l2tp_session_hlist[hash], global_hlist) {
if (!strcmp(session->ifname, ifname)) {
+ l2tp_session_inc_refcount(session);
+ if (do_ref && session->ref)
+ session->ref(session);
rcu_read_unlock_bh();
+
return session;
}
}
@@ -327,7 +381,49 @@ struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname)

return NULL;
}
-EXPORT_SYMBOL_GPL(l2tp_session_find_by_ifname);
+EXPORT_SYMBOL_GPL(l2tp_session_get_by_ifname);
+
+static int l2tp_session_add_to_tunnel(struct l2tp_tunnel *tunnel,
+ struct l2tp_session *session)
+{
+ struct l2tp_session *session_walk;
+ struct hlist_head *g_head;
+ struct hlist_head *head;
+ struct l2tp_net *pn;
+
+ head = l2tp_session_id_hash(tunnel, session->session_id);
+
+ write_lock_bh(&tunnel->hlist_lock);
+ hlist_for_each_entry(session_walk, head, hlist)
+ if (session_walk->session_id == session->session_id)
+ goto exist;
+
+ if (tunnel->version == L2TP_HDR_VER_3) {
+ pn = l2tp_pernet(tunnel->l2tp_net);
+ g_head = l2tp_session_id_hash_2(l2tp_pernet(tunnel->l2tp_net),
+ session->session_id);
+
+ spin_lock_bh(&pn->l2tp_session_hlist_lock);
+ hlist_for_each_entry(session_walk, g_head, global_hlist)
+ if (session_walk->session_id == session->session_id)
+ goto exist_glob;
+
+ hlist_add_head_rcu(&session->global_hlist, g_head);
+ spin_unlock_bh(&pn->l2tp_session_hlist_lock);
+ }
+
+ hlist_add_head(&session->hlist, head);
+ write_unlock_bh(&tunnel->hlist_lock);
+
+ return 0;
+
+exist_glob:
+ spin_unlock_bh(&pn->l2tp_session_hlist_lock);
+exist:
+ write_unlock_bh(&tunnel->hlist_lock);
+
+ return -EEXIST;
+}

/* Lookup a tunnel by id
*/
@@ -637,6 +733,9 @@ static int l2tp_recv_data_seq(struct l2tp_session *session, struct sk_buff *skb)
* a data (not control) frame before coming here. Fields up to the
* session-id have already been parsed and ptr points to the data
* after the session-id.
+ *
+ * session->ref() must have been called prior to l2tp_recv_common().
+ * session->deref() will be called automatically after skb is processed.
*/
void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
unsigned char *ptr, unsigned char *optr, u16 hdrflags,
@@ -646,14 +745,6 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
int offset;
u32 ns, nr;

- /* The ref count is increased since we now hold a pointer to
- * the session. Take care to decrement the refcnt when exiting
- * this function from now on...
- */
- l2tp_session_inc_refcount(session);
- if (session->ref)
- (*session->ref)(session);
-
/* Parse and check optional cookie */
if (session->peer_cookie_len > 0) {
if (memcmp(ptr, &session->peer_cookie[0], session->peer_cookie_len)) {
@@ -806,8 +897,6 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
/* Try to dequeue as many skbs from reorder_q as we can. */
l2tp_recv_dequeue(session);

- l2tp_session_dec_refcount(session);
-
return;

discard:
@@ -816,8 +905,6 @@ void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,

if (session->deref)
(*session->deref)(session);
-
- l2tp_session_dec_refcount(session);
}
EXPORT_SYMBOL(l2tp_recv_common);

@@ -924,8 +1011,14 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
}

/* Find the session context */
- session = l2tp_session_find(tunnel->l2tp_net, tunnel, session_id);
+ session = l2tp_session_get(tunnel->l2tp_net, tunnel, session_id, true);
if (!session || !session->recv_skb) {
+ if (session) {
+ if (session->deref)
+ session->deref(session);
+ l2tp_session_dec_refcount(session);
+ }
+
/* Not found? Pass to userspace to deal with */
l2tp_info(tunnel, L2TP_MSG_DATA,
"%s: no session found (%u/%u). Passing up.\n",
@@ -934,6 +1027,7 @@ static int l2tp_udp_recv_core(struct l2tp_tunnel *tunnel, struct sk_buff *skb,
}

l2tp_recv_common(session, skb, ptr, optr, hdrflags, length, payload_hook);
+ l2tp_session_dec_refcount(session);

return 0;

@@ -1740,6 +1834,7 @@ EXPORT_SYMBOL_GPL(l2tp_session_set_header_len);
struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg)
{
struct l2tp_session *session;
+ int err;

session = kzalloc(sizeof(struct l2tp_session) + priv_size, GFP_KERNEL);
if (session != NULL) {
@@ -1795,6 +1890,13 @@ struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunn

l2tp_session_set_header_len(session, tunnel->version);

+ err = l2tp_session_add_to_tunnel(tunnel, session);
+ if (err) {
+ kfree(session);
+
+ return ERR_PTR(err);
+ }
+
/* Bump the reference count. The session context is deleted
* only when this drops to zero.
*/
@@ -1804,28 +1906,14 @@ struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunn
/* Ensure tunnel socket isn't deleted */
sock_hold(tunnel->sock);

- /* Add session to the tunnel's hash list */
- write_lock_bh(&tunnel->hlist_lock);
- hlist_add_head(&session->hlist,
- l2tp_session_id_hash(tunnel, session_id));
- write_unlock_bh(&tunnel->hlist_lock);
-
- /* And to the global session list if L2TPv3 */
- if (tunnel->version != L2TP_HDR_VER_2) {
- struct l2tp_net *pn = l2tp_pernet(tunnel->l2tp_net);
-
- spin_lock_bh(&pn->l2tp_session_hlist_lock);
- hlist_add_head_rcu(&session->global_hlist,
- l2tp_session_id_hash_2(pn, session_id));
- spin_unlock_bh(&pn->l2tp_session_hlist_lock);
- }
-
/* Ignore management session in session count value */
if (session->session_id != 0)
atomic_inc(&l2tp_session_count);
+
+ return session;
}

- return session;
+ return ERR_PTR(-ENOMEM);
}
EXPORT_SYMBOL_GPL(l2tp_session_create);

diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index e7233bad65e0..0095012509ac 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -240,12 +240,16 @@ static inline struct l2tp_tunnel *l2tp_sock_to_tunnel(struct sock *sk)
return tunnel;
}

+struct l2tp_session *l2tp_session_get(struct net *net,
+ struct l2tp_tunnel *tunnel,
+ u32 session_id, bool do_ref);
struct l2tp_session *l2tp_session_find(struct net *net,
struct l2tp_tunnel *tunnel,
u32 session_id);
struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
bool do_ref);
-struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname);
+struct l2tp_session *l2tp_session_get_by_ifname(struct net *net, char *ifname,
+ bool do_ref);
struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id);
struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth);

diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index 965f7e344cef..eecc64e138de 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -223,12 +223,6 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p
goto out;
}

- session = l2tp_session_find(net, tunnel, session_id);
- if (session) {
- rc = -EEXIST;
- goto out;
- }
-
if (cfg->ifname) {
dev = dev_get_by_name(net, cfg->ifname);
if (dev) {
@@ -242,8 +236,8 @@ static int l2tp_eth_create(struct net *net, u32 tunnel_id, u32 session_id, u32 p

session = l2tp_session_create(sizeof(*spriv), tunnel, session_id,
peer_session_id, cfg);
- if (!session) {
- rc = -ENOMEM;
+ if (IS_ERR(session)) {
+ rc = PTR_ERR(session);
goto out;
}

diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 20669537816e..3468d5635d0a 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -143,19 +143,19 @@ static int l2tp_ip_recv(struct sk_buff *skb)
}

/* Ok, this is a data packet. Lookup the session. */
- session = l2tp_session_find(net, NULL, session_id);
- if (session == NULL)
+ session = l2tp_session_get(net, NULL, session_id, true);
+ if (!session)
goto discard;

tunnel = session->tunnel;
- if (tunnel == NULL)
- goto discard;
+ if (!tunnel)
+ goto discard_sess;

/* Trace packet contents, if enabled */
if (tunnel->debug & L2TP_MSG_DATA) {
length = min(32u, skb->len);
if (!pskb_may_pull(skb, length))
- goto discard;
+ goto discard_sess;

/* Point to L2TP header */
optr = ptr = skb->data;
@@ -165,6 +165,7 @@ static int l2tp_ip_recv(struct sk_buff *skb)
}

l2tp_recv_common(session, skb, ptr, optr, 0, skb->len, tunnel->recv_payload_hook);
+ l2tp_session_dec_refcount(session);

return 0;

@@ -203,6 +204,12 @@ static int l2tp_ip_recv(struct sk_buff *skb)

return sk_receive_skb(sk, skb, 1);

+discard_sess:
+ if (session->deref)
+ session->deref(session);
+ l2tp_session_dec_refcount(session);
+ goto discard;
+
discard_put:
sock_put(sk);

diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index a4b0c9232bf1..b10abef6b0a0 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -156,19 +156,19 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
}

/* Ok, this is a data packet. Lookup the session. */
- session = l2tp_session_find(net, NULL, session_id);
- if (session == NULL)
+ session = l2tp_session_get(net, NULL, session_id, true);
+ if (!session)
goto discard;

tunnel = session->tunnel;
- if (tunnel == NULL)
- goto discard;
+ if (!tunnel)
+ goto discard_sess;

/* Trace packet contents, if enabled */
if (tunnel->debug & L2TP_MSG_DATA) {
length = min(32u, skb->len);
if (!pskb_may_pull(skb, length))
- goto discard;
+ goto discard_sess;

/* Point to L2TP header */
optr = ptr = skb->data;
@@ -179,6 +179,8 @@ static int l2tp_ip6_recv(struct sk_buff *skb)

l2tp_recv_common(session, skb, ptr, optr, 0, skb->len,
tunnel->recv_payload_hook);
+ l2tp_session_dec_refcount(session);
+
return 0;

pass_up:
@@ -216,6 +218,12 @@ static int l2tp_ip6_recv(struct sk_buff *skb)

return sk_receive_skb(sk, skb, 1);

+discard_sess:
+ if (session->deref)
+ session->deref(session);
+ l2tp_session_dec_refcount(session);
+ goto discard;
+
discard_put:
sock_put(sk);

diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 9f66272b163b..1ccd310d01a5 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -55,7 +55,8 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 portid, u32 seq,
/* Accessed under genl lock */
static const struct l2tp_nl_cmd_ops *l2tp_nl_cmd_ops[__L2TP_PWTYPE_MAX];

-static struct l2tp_session *l2tp_nl_session_find(struct genl_info *info)
+static struct l2tp_session *l2tp_nl_session_get(struct genl_info *info,
+ bool do_ref)
{
u32 tunnel_id;
u32 session_id;
@@ -66,14 +67,15 @@ static struct l2tp_session *l2tp_nl_session_find(struct genl_info *info)

if (info->attrs[L2TP_ATTR_IFNAME]) {
ifname = nla_data(info->attrs[L2TP_ATTR_IFNAME]);
- session = l2tp_session_find_by_ifname(net, ifname);
+ session = l2tp_session_get_by_ifname(net, ifname, do_ref);
} else if ((info->attrs[L2TP_ATTR_SESSION_ID]) &&
(info->attrs[L2TP_ATTR_CONN_ID])) {
tunnel_id = nla_get_u32(info->attrs[L2TP_ATTR_CONN_ID]);
session_id = nla_get_u32(info->attrs[L2TP_ATTR_SESSION_ID]);
tunnel = l2tp_tunnel_find(net, tunnel_id);
if (tunnel)
- session = l2tp_session_find(net, tunnel, session_id);
+ session = l2tp_session_get(net, tunnel, session_id,
+ do_ref);
}

return session;
@@ -634,10 +636,12 @@ static int l2tp_nl_cmd_session_create(struct sk_buff *skb, struct genl_info *inf
session_id, peer_session_id, &cfg);

if (ret >= 0) {
- session = l2tp_session_find(net, tunnel, session_id);
- if (session)
+ session = l2tp_session_get(net, tunnel, session_id, false);
+ if (session) {
ret = l2tp_session_notify(&l2tp_nl_family, info, session,
L2TP_CMD_SESSION_CREATE);
+ l2tp_session_dec_refcount(session);
+ }
}

out:
@@ -650,7 +654,7 @@ static int l2tp_nl_cmd_session_delete(struct sk_buff *skb, struct genl_info *inf
struct l2tp_session *session;
u16 pw_type;

- session = l2tp_nl_session_find(info);
+ session = l2tp_nl_session_get(info, true);
if (session == NULL) {
ret = -ENODEV;
goto out;
@@ -664,6 +668,10 @@ static int l2tp_nl_cmd_session_delete(struct sk_buff *skb, struct genl_info *inf
if (l2tp_nl_cmd_ops[pw_type] && l2tp_nl_cmd_ops[pw_type]->session_delete)
ret = (*l2tp_nl_cmd_ops[pw_type]->session_delete)(session);

+ if (session->deref)
+ session->deref(session);
+ l2tp_session_dec_refcount(session);
+
out:
return ret;
}
@@ -673,7 +681,7 @@ static int l2tp_nl_cmd_session_modify(struct sk_buff *skb, struct genl_info *inf
int ret = 0;
struct l2tp_session *session;

- session = l2tp_nl_session_find(info);
+ session = l2tp_nl_session_get(info, false);
if (session == NULL) {
ret = -ENODEV;
goto out;
@@ -708,6 +716,8 @@ static int l2tp_nl_cmd_session_modify(struct sk_buff *skb, struct genl_info *inf
ret = l2tp_session_notify(&l2tp_nl_family, info,
session, L2TP_CMD_SESSION_MODIFY);

+ l2tp_session_dec_refcount(session);
+
out:
return ret;
}
@@ -803,29 +813,34 @@ static int l2tp_nl_cmd_session_get(struct sk_buff *skb, struct genl_info *info)
struct sk_buff *msg;
int ret;

- session = l2tp_nl_session_find(info);
+ session = l2tp_nl_session_get(info, false);
if (session == NULL) {
ret = -ENODEV;
- goto out;
+ goto err;
}

msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
if (!msg) {
ret = -ENOMEM;
- goto out;
+ goto err_ref;
}

ret = l2tp_nl_session_send(msg, info->snd_portid, info->snd_seq,
0, session, L2TP_CMD_SESSION_GET);
if (ret < 0)
- goto err_out;
+ goto err_ref_msg;

- return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
+ ret = genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);

-err_out:
- nlmsg_free(msg);
+ l2tp_session_dec_refcount(session);

-out:
+ return ret;
+
+err_ref_msg:
+ nlmsg_free(msg);
+err_ref:
+ l2tp_session_dec_refcount(session);
+err:
return ret;
}

diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 1387f547a09e..1696f1fd5877 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -583,6 +583,7 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
int error = 0;
u32 tunnel_id, peer_tunnel_id;
u32 session_id, peer_session_id;
+ bool drop_refcnt = false;
int ver = 2;
int fd;

@@ -684,36 +685,36 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
if (tunnel->peer_tunnel_id == 0)
tunnel->peer_tunnel_id = peer_tunnel_id;

- /* Create session if it doesn't already exist. We handle the
- * case where a session was previously created by the netlink
- * interface by checking that the session doesn't already have
- * a socket and its tunnel socket are what we expect. If any
- * of those checks fail, return EEXIST to the caller.
- */
- session = l2tp_session_find(sock_net(sk), tunnel, session_id);
- if (session == NULL) {
- /* Default MTU must allow space for UDP/L2TP/PPP
- * headers.
+ session = l2tp_session_get(sock_net(sk), tunnel, session_id, false);
+ if (session) {
+ drop_refcnt = true;
+ ps = l2tp_session_priv(session);
+
+ /* Using a pre-existing session is fine as long as it hasn't
+ * been connected yet.
*/
- cfg.mtu = cfg.mru = 1500 - PPPOL2TP_HEADER_OVERHEAD;
+ if (ps->sock) {
+ error = -EEXIST;
+ goto end;
+ }

- /* Allocate and initialize a new session context. */
- session = l2tp_session_create(sizeof(struct pppol2tp_session),
- tunnel, session_id,
- peer_session_id, &cfg);
- if (session == NULL) {
- error = -ENOMEM;
+ /* consistency checks */
+ if (ps->tunnel_sock != tunnel->sock) {
+ error = -EEXIST;
goto end;
}
} else {
- ps = l2tp_session_priv(session);
- error = -EEXIST;
- if (ps->sock != NULL)
- goto end;
+ /* Default MTU must allow space for UDP/L2TP/PPP headers */
+ cfg.mtu = 1500 - PPPOL2TP_HEADER_OVERHEAD;
+ cfg.mru = cfg.mtu;

- /* consistency checks */
- if (ps->tunnel_sock != tunnel->sock)
+ session = l2tp_session_create(sizeof(struct pppol2tp_session),
+ tunnel, session_id,
+ peer_session_id, &cfg);
+ if (IS_ERR(session)) {
+ error = PTR_ERR(session);
goto end;
+ }
}

/* Associate session with its PPPoL2TP socket */
@@ -778,6 +779,8 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
session->name);

end:
+ if (drop_refcnt)
+ l2tp_session_dec_refcount(session);
release_sock(sk);

return error;
@@ -805,12 +808,6 @@ static int pppol2tp_session_create(struct net *net, u32 tunnel_id, u32 session_i
if (tunnel->sock == NULL)
goto out;

- /* Check that this session doesn't already exist */
- error = -EEXIST;
- session = l2tp_session_find(net, tunnel, session_id);
- if (session != NULL)
- goto out;
-
/* Default MTU values. */
if (cfg->mtu == 0)
cfg->mtu = 1500 - PPPOL2TP_HEADER_OVERHEAD;
@@ -818,12 +815,13 @@ static int pppol2tp_session_create(struct net *net, u32 tunnel_id, u32 session_i
cfg->mru = cfg->mtu;

/* Allocate and initialize a new session context. */
- error = -ENOMEM;
session = l2tp_session_create(sizeof(struct pppol2tp_session),
tunnel, session_id,
peer_session_id, cfg);
- if (session == NULL)
+ if (IS_ERR(session)) {
+ error = PTR_ERR(session);
goto out;
+ }

ps = l2tp_session_priv(session);
ps->tunnel_sock = tunnel->sock;
@@ -1141,11 +1139,18 @@ static int pppol2tp_tunnel_ioctl(struct l2tp_tunnel *tunnel,
if (stats.session_id != 0) {
/* resend to session ioctl handler */
struct l2tp_session *session =
- l2tp_session_find(sock_net(sk), tunnel, stats.session_id);
- if (session != NULL)
- err = pppol2tp_session_ioctl(session, cmd, arg);
- else
+ l2tp_session_get(sock_net(sk), tunnel,
+ stats.session_id, true);
+
+ if (session) {
+ err = pppol2tp_session_ioctl(session, cmd,
+ arg);
+ if (session->deref)
+ session->deref(session);
+ l2tp_session_dec_refcount(session);
+ } else {
err = -EBADR;
+ }
break;
}
#ifdef CONFIG_XFRM
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 8d7747e98fdb..37bec0f864b7 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -6,6 +6,7 @@
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
* Copyright 2013-2014 Intel Mobile Communications GmbH
+ * Copyright (c) 2016 Intel Deutschland GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -1307,6 +1308,26 @@ static void ieee80211_iface_work(struct work_struct *work)
} else if (ieee80211_is_action(mgmt->frame_control) &&
mgmt->u.action.category == WLAN_CATEGORY_VHT) {
switch (mgmt->u.action.u.vht_group_notif.action_code) {
+ case WLAN_VHT_ACTION_OPMODE_NOTIF: {
+ struct ieee80211_rx_status *status;
+ enum nl80211_band band;
+ u8 opmode;
+
+ status = IEEE80211_SKB_RXCB(skb);
+ band = status->band;
+ opmode = mgmt->u.action.u.vht_opmode_notif.operating_mode;
+
+ mutex_lock(&local->sta_mtx);
+ sta = sta_info_get_bss(sdata, mgmt->sa);
+
+ if (sta)
+ ieee80211_vht_handle_opmode(sdata, sta,
+ opmode,
+ band);
+
+ mutex_unlock(&local->sta_mtx);
+ break;
+ }
case WLAN_VHT_ACTION_GROUPID_MGMT:
ieee80211_process_mu_groups(sdata, mgmt);
break;
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 1075ac24c8c5..2bb6899854d4 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -908,12 +908,17 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
supp_ht = supp_ht || sband->ht_cap.ht_supported;
supp_vht = supp_vht || sband->vht_cap.vht_supported;

- if (sband->ht_cap.ht_supported)
- local->rx_chains =
- max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs),
- local->rx_chains);
+ if (!sband->ht_cap.ht_supported)
+ continue;

/* TODO: consider VHT for RX chains, hopefully it's the same */
+ local->rx_chains =
+ max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs),
+ local->rx_chains);
+
+ /* no need to mask, SM_PS_DISABLED has all bits set */
+ sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED <<
+ IEEE80211_HT_CAP_SM_PS_SHIFT;
}

/* if low-level driver supports AP, we also support VLAN */
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c45a0fcfb3e7..439e597fd374 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2923,17 +2923,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)

switch (mgmt->u.action.u.vht_opmode_notif.action_code) {
case WLAN_VHT_ACTION_OPMODE_NOTIF: {
- u8 opmode;
-
/* verify opmode is present */
if (len < IEEE80211_MIN_ACTION_SIZE + 2)
goto invalid;
-
- opmode = mgmt->u.action.u.vht_opmode_notif.operating_mode;
-
- ieee80211_vht_handle_opmode(rx->sdata, rx->sta,
- opmode, status->band);
- goto handled;
+ goto queue;
}
case WLAN_VHT_ACTION_GROUPID_MGMT: {
if (len < IEEE80211_MIN_ACTION_SIZE + 25)
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 6832bf6ab69f..43e45bb660bc 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -527,8 +527,10 @@ void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,

u32 changed = __ieee80211_vht_handle_opmode(sdata, sta, opmode, band);

- if (changed > 0)
+ if (changed > 0) {
+ ieee80211_recalc_min_chandef(sdata);
rate_control_rate_update(local, sband, sta, changed);
+ }
}

void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 27540455dc62..04111c1c3988 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -45,6 +45,8 @@
#include <net/netfilter/nf_conntrack_zones.h>
#include <net/netfilter/nf_conntrack_timestamp.h>
#include <net/netfilter/nf_conntrack_labels.h>
+#include <net/netfilter/nf_conntrack_seqadj.h>
+#include <net/netfilter/nf_conntrack_synproxy.h>
#ifdef CONFIG_NF_NAT_NEEDED
#include <net/netfilter/nf_nat_core.h>
#include <net/netfilter/nf_nat_l4proto.h>
@@ -1800,6 +1802,8 @@ ctnetlink_create_conntrack(struct net *net,
nf_ct_tstamp_ext_add(ct, GFP_ATOMIC);
nf_ct_ecache_ext_add(ct, 0, 0, GFP_ATOMIC);
nf_ct_labels_ext_add(ct);
+ nfct_seqadj_ext_add(ct);
+ nfct_synproxy_ext_add(ct);

/* we must add conntrack extensions before confirmation. */
ct->status |= IPS_CONFIRMED;
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index 872db2d0e2a9..119e51fdcebc 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -104,7 +104,7 @@ tcpmss_mangle_packet(struct sk_buff *skb,
tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff);
tcp_hdrlen = tcph->doff * 4;

- if (len < tcp_hdrlen)
+ if (len < tcp_hdrlen || tcp_hdrlen < sizeof(struct tcphdr))
return -1;

if (info->mss == XT_TCPMSS_CLAMP_PMTU) {
@@ -152,6 +152,10 @@ tcpmss_mangle_packet(struct sk_buff *skb,
if (len > tcp_hdrlen)
return 0;

+ /* tcph->doff has 4 bits, do not wrap it to 0 */
+ if (tcp_hdrlen >= 15 * 4)
+ return 0;
+
/*
* MSS Option not found ?! add it..
*/
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index e1719c695174..9647e314d4fc 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -239,7 +239,7 @@ static struct sctp_transport *sctp_addr_id2transport(struct sock *sk,
union sctp_addr *laddr = (union sctp_addr *)addr;
struct sctp_transport *transport;

- if (sctp_verify_addr(sk, laddr, af->sockaddr_len))
+ if (!af || sctp_verify_addr(sk, laddr, af->sockaddr_len))
return NULL;

addr_asoc = sctp_endpoint_lookup_assoc(sctp_sk(sk)->ep,
@@ -4460,13 +4460,13 @@ int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *),

for (head = sctp_ep_hashtable; hash < sctp_ep_hashsize;
hash++, head++) {
- read_lock(&head->lock);
+ read_lock_bh(&head->lock);
sctp_for_each_hentry(epb, &head->chain) {
err = cb(sctp_ep(epb), p);
if (err)
break;
}
- read_unlock(&head->lock);
+ read_unlock_bh(&head->lock);
}

return err;
@@ -4506,9 +4506,8 @@ int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
if (err)
return err;

- sctp_transport_get_idx(net, &hti, pos);
- obj = sctp_transport_get_next(net, &hti);
- for (; obj && !IS_ERR(obj); obj = sctp_transport_get_next(net, &hti)) {
+ obj = sctp_transport_get_idx(net, &hti, pos + 1);
+ for (; !IS_ERR_OR_NULL(obj); obj = sctp_transport_get_next(net, &hti)) {
struct sctp_transport *transport = obj;

if (!sctp_transport_hold(transport))
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 6b109a808d4c..02462d67d191 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -169,7 +169,7 @@ void tipc_disc_rcv(struct net *net, struct sk_buff *skb,

/* Send response, if necessary */
if (respond && (mtyp == DSC_REQ_MSG)) {
- rskb = tipc_buf_acquire(MAX_H_SIZE);
+ rskb = tipc_buf_acquire(MAX_H_SIZE, GFP_ATOMIC);
if (!rskb)
return;
tipc_disc_init_msg(net, rskb, DSC_RESP_MSG, bearer);
@@ -278,7 +278,7 @@ int tipc_disc_create(struct net *net, struct tipc_bearer *b,
req = kmalloc(sizeof(*req), GFP_ATOMIC);
if (!req)
return -ENOMEM;
- req->buf = tipc_buf_acquire(MAX_H_SIZE);
+ req->buf = tipc_buf_acquire(MAX_H_SIZE, GFP_ATOMIC);
if (!req->buf) {
kfree(req);
return -ENOMEM;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index bda89bf9f4ff..4e8647aef01c 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1395,7 +1395,7 @@ void tipc_link_tnl_prepare(struct tipc_link *l, struct tipc_link *tnl,
msg_set_seqno(hdr, seqno++);
pktlen = msg_size(hdr);
msg_set_size(&tnlhdr, pktlen + INT_H_SIZE);
- tnlskb = tipc_buf_acquire(pktlen + INT_H_SIZE);
+ tnlskb = tipc_buf_acquire(pktlen + INT_H_SIZE, GFP_ATOMIC);
if (!tnlskb) {
pr_warn("%sunable to send packet\n", link_co_err);
return;
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 17201aa8423d..56ea0adcd285 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -58,12 +58,12 @@ static unsigned int align(unsigned int i)
* NOTE: Headroom is reserved to allow prepending of a data link header.
* There may also be unrequested tailroom present at the buffer's end.
*/
-struct sk_buff *tipc_buf_acquire(u32 size)
+struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp)
{
struct sk_buff *skb;
unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u;

- skb = alloc_skb_fclone(buf_size, GFP_ATOMIC);
+ skb = alloc_skb_fclone(buf_size, gfp);
if (skb) {
skb_reserve(skb, BUF_HEADROOM);
skb_put(skb, size);
@@ -95,7 +95,7 @@ struct sk_buff *tipc_msg_create(uint user, uint type,
struct tipc_msg *msg;
struct sk_buff *buf;

- buf = tipc_buf_acquire(hdr_sz + data_sz);
+ buf = tipc_buf_acquire(hdr_sz + data_sz, GFP_ATOMIC);
if (unlikely(!buf))
return NULL;

@@ -261,7 +261,7 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m,

/* No fragmentation needed? */
if (likely(msz <= pktmax)) {
- skb = tipc_buf_acquire(msz);
+ skb = tipc_buf_acquire(msz, GFP_KERNEL);
if (unlikely(!skb))
return -ENOMEM;
skb_orphan(skb);
@@ -282,7 +282,7 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m,
msg_set_importance(&pkthdr, msg_importance(mhdr));

/* Prepare first fragment */
- skb = tipc_buf_acquire(pktmax);
+ skb = tipc_buf_acquire(pktmax, GFP_KERNEL);
if (!skb)
return -ENOMEM;
skb_orphan(skb);
@@ -313,7 +313,7 @@ int tipc_msg_build(struct tipc_msg *mhdr, struct msghdr *m,
pktsz = drem + INT_H_SIZE;
else
pktsz = pktmax;
- skb = tipc_buf_acquire(pktsz);
+ skb = tipc_buf_acquire(pktsz, GFP_KERNEL);
if (!skb) {
rc = -ENOMEM;
goto error;
@@ -448,7 +448,7 @@ bool tipc_msg_make_bundle(struct sk_buff **skb, struct tipc_msg *msg,
if (msz > (max / 2))
return false;

- _skb = tipc_buf_acquire(max);
+ _skb = tipc_buf_acquire(max, GFP_ATOMIC);
if (!_skb)
return false;

@@ -496,7 +496,7 @@ bool tipc_msg_reverse(u32 own_node, struct sk_buff **skb, int err)

/* Never return SHORT header; expand by replacing buffer if necessary */
if (msg_short(hdr)) {
- *skb = tipc_buf_acquire(BASIC_H_SIZE + dlen);
+ *skb = tipc_buf_acquire(BASIC_H_SIZE + dlen, GFP_ATOMIC);
if (!*skb)
goto exit;
memcpy((*skb)->data + BASIC_H_SIZE, msg_data(hdr), dlen);
@@ -508,7 +508,7 @@ bool tipc_msg_reverse(u32 own_node, struct sk_buff **skb, int err)
}

if (skb_cloned(_skb) &&
- pskb_expand_head(_skb, BUF_HEADROOM, BUF_TAILROOM, GFP_KERNEL))
+ pskb_expand_head(_skb, BUF_HEADROOM, BUF_TAILROOM, GFP_ATOMIC))
goto exit;

/* Now reverse the concerned fields */
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 50a739860d37..6c0455caf302 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -820,7 +820,7 @@ static inline bool msg_is_reset(struct tipc_msg *hdr)
return (msg_user(hdr) == LINK_PROTOCOL) && (msg_type(hdr) == RESET_MSG);
}

-struct sk_buff *tipc_buf_acquire(u32 size);
+struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp);
bool tipc_msg_validate(struct sk_buff *skb);
bool tipc_msg_reverse(u32 own_addr, struct sk_buff **skb, int err);
void tipc_msg_init(u32 own_addr, struct tipc_msg *m, u32 user, u32 type,
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index c1cfd92de17a..23f8899e0f8c 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -69,7 +69,7 @@ static struct sk_buff *named_prepare_buf(struct net *net, u32 type, u32 size,
u32 dest)
{
struct tipc_net *tn = net_generic(net, tipc_net_id);
- struct sk_buff *buf = tipc_buf_acquire(INT_H_SIZE + size);
+ struct sk_buff *buf = tipc_buf_acquire(INT_H_SIZE + size, GFP_ATOMIC);
struct tipc_msg *msg;

if (buf != NULL) {
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 2d03d5bcb5b9..915abe98174e 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -998,7 +998,8 @@ static int unix_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
struct path path = { NULL, NULL };

err = -EINVAL;
- if (sunaddr->sun_family != AF_UNIX)
+ if (addr_len < offsetofend(struct sockaddr_un, sun_family) ||
+ sunaddr->sun_family != AF_UNIX)
goto out;

if (addr_len == sizeof(short)) {
@@ -1109,6 +1110,10 @@ static int unix_dgram_connect(struct socket *sock, struct sockaddr *addr,
unsigned int hash;
int err;

+ err = -EINVAL;
+ if (alen < offsetofend(struct sockaddr, sa_family))
+ goto out;
+
if (addr->sa_family != AF_UNSPEC) {
err = unix_mkname(sunaddr, alen, &hash);
if (err < 0)
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index e0437a7aa1a2..8da67f7c9c5a 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1808,43 +1808,6 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
goto out;
}

-#ifdef CONFIG_XFRM_SUB_POLICY
-static int xfrm_dst_alloc_copy(void **target, const void *src, int size)
-{
- if (!*target) {
- *target = kmalloc(size, GFP_ATOMIC);
- if (!*target)
- return -ENOMEM;
- }
-
- memcpy(*target, src, size);
- return 0;
-}
-#endif
-
-static int xfrm_dst_update_parent(struct dst_entry *dst,
- const struct xfrm_selector *sel)
-{
-#ifdef CONFIG_XFRM_SUB_POLICY
- struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
- return xfrm_dst_alloc_copy((void **)&(xdst->partner),
- sel, sizeof(*sel));
-#else
- return 0;
-#endif
-}
-
-static int xfrm_dst_update_origin(struct dst_entry *dst,
- const struct flowi *fl)
-{
-#ifdef CONFIG_XFRM_SUB_POLICY
- struct xfrm_dst *xdst = (struct xfrm_dst *)dst;
- return xfrm_dst_alloc_copy((void **)&(xdst->origin), fl, sizeof(*fl));
-#else
- return 0;
-#endif
-}
-
static int xfrm_expand_policies(const struct flowi *fl, u16 family,
struct xfrm_policy **pols,
int *num_pols, int *num_xfrms)
@@ -1916,16 +1879,6 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,

xdst = (struct xfrm_dst *)dst;
xdst->num_xfrms = err;
- if (num_pols > 1)
- err = xfrm_dst_update_parent(dst, &pols[1]->selector);
- else
- err = xfrm_dst_update_origin(dst, fl);
- if (unlikely(err)) {
- dst_free(dst);
- XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
- return ERR_PTR(err);
- }
-
xdst->num_pols = num_pols;
memcpy(xdst->pols, pols, sizeof(struct xfrm_policy *) * num_pols);
xdst->policy_genid = atomic_read(&pols[0]->genid);
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 373fcad840ea..776dffa88aee 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -294,6 +294,8 @@ struct hda_codec {

#define list_for_each_codec(c, bus) \
list_for_each_entry(c, &(bus)->core.codec_list, core.list)
+#define list_for_each_codec_safe(c, n, bus) \
+ list_for_each_entry_safe(c, n, &(bus)->core.codec_list, core.list)

/* snd_hda_codec_read/write optional flags */
#define HDA_RW_NO_RESPONSE_FALLBACK (1 << 0)
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index 500878556578..0af1132a869e 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -1333,8 +1333,12 @@ EXPORT_SYMBOL_GPL(azx_probe_codecs);
/* configure each codec instance */
int azx_codec_configure(struct azx *chip)
{
- struct hda_codec *codec;
- list_for_each_codec(codec, &chip->bus) {
+ struct hda_codec *codec, *next;
+
+ /* use _safe version here since snd_hda_codec_configure() deregisters
+ * the device upon error and deletes itself from the bus list.
+ */
+ list_for_each_codec_safe(codec, next, &chip->bus) {
snd_hda_codec_configure(codec);
}
return 0;
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index e7c8f4f076d5..b0bd29003b5d 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -3169,6 +3169,7 @@ static int check_dyn_adc_switch(struct hda_codec *codec)
spec->input_paths[i][nums]);
spec->input_paths[i][nums] =
spec->input_paths[i][n];
+ spec->input_paths[i][n] = 0;
}
}
nums++;
diff --git a/tools/arch/x86/lib/memcpy_64.S b/tools/arch/x86/lib/memcpy_64.S
index 49e6ebac7e73..98dcc112b363 100644
--- a/tools/arch/x86/lib/memcpy_64.S
+++ b/tools/arch/x86/lib/memcpy_64.S
@@ -286,7 +286,7 @@ ENDPROC(memcpy_mcsafe_unrolled)
_ASM_EXTABLE_FAULT(.L_copy_leading_bytes, .L_memcpy_mcsafe_fail)
_ASM_EXTABLE_FAULT(.L_cache_w0, .L_memcpy_mcsafe_fail)
_ASM_EXTABLE_FAULT(.L_cache_w1, .L_memcpy_mcsafe_fail)
- _ASM_EXTABLE_FAULT(.L_cache_w3, .L_memcpy_mcsafe_fail)
+ _ASM_EXTABLE_FAULT(.L_cache_w2, .L_memcpy_mcsafe_fail)
_ASM_EXTABLE_FAULT(.L_cache_w3, .L_memcpy_mcsafe_fail)
_ASM_EXTABLE_FAULT(.L_cache_w4, .L_memcpy_mcsafe_fail)
_ASM_EXTABLE_FAULT(.L_cache_w5, .L_memcpy_mcsafe_fail)
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c
index 5e0dea2cdc01..039636ffb6c8 100644
--- a/tools/objtool/arch/x86/decode.c
+++ b/tools/objtool/arch/x86/decode.c
@@ -150,9 +150,9 @@ int arch_decode_instruction(struct elf *elf, struct section *sec,
*type = INSN_RETURN;
break;

- case 0xc5: /* iret */
case 0xca: /* retf */
case 0xcb: /* retf */
+ case 0xcf: /* iret */
*type = INSN_CONTEXT_SWITCH;
break;

diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c
index e8a1f699058a..b8dadb050d2b 100644
--- a/tools/objtool/builtin-check.c
+++ b/tools/objtool/builtin-check.c
@@ -757,11 +757,20 @@ static struct rela *find_switch_table(struct objtool_file *file,
insn->jump_dest->offset > orig_insn->offset))
break;

+ /* look for a relocation which references .rodata */
text_rela = find_rela_by_dest_range(insn->sec, insn->offset,
insn->len);
- if (text_rela && text_rela->sym == file->rodata->sym)
- return find_rela_by_dest(file->rodata,
- text_rela->addend);
+ if (!text_rela || text_rela->sym != file->rodata->sym)
+ continue;
+
+ /*
+ * Make sure the .rodata address isn't associated with a
+ * symbol. gcc jump tables are anonymous data.
+ */
+ if (find_symbol_containing(file->rodata, text_rela->addend))
+ continue;
+
+ return find_rela_by_dest(file->rodata, text_rela->addend);
}

return NULL;
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index 0d7983ac63ef..d897702ce742 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -85,6 +85,18 @@ struct symbol *find_symbol_by_offset(struct section *sec, unsigned long offset)
return NULL;
}

+struct symbol *find_symbol_containing(struct section *sec, unsigned long offset)
+{
+ struct symbol *sym;
+
+ list_for_each_entry(sym, &sec->symbol_list, list)
+ if (sym->type != STT_SECTION &&
+ offset >= sym->offset && offset < sym->offset + sym->len)
+ return sym;
+
+ return NULL;
+}
+
struct rela *find_rela_by_dest_range(struct section *sec, unsigned long offset,
unsigned int len)
{
diff --git a/tools/objtool/elf.h b/tools/objtool/elf.h
index aa1ff6596684..731973e1a3f5 100644
--- a/tools/objtool/elf.h
+++ b/tools/objtool/elf.h
@@ -79,6 +79,7 @@ struct elf {
struct elf *elf_open(const char *name);
struct section *find_section_by_name(struct elf *elf, const char *name);
struct symbol *find_symbol_by_offset(struct section *sec, unsigned long offset);
+struct symbol *find_symbol_containing(struct section *sec, unsigned long offset);
struct rela *find_rela_by_dest(struct section *sec, unsigned long offset);
struct rela *find_rela_by_dest_range(struct section *sec, unsigned long offset,
unsigned int len);
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index d281ae2b54e8..1d9c02bc00f1 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -645,18 +645,31 @@ static int add_exec_to_probe_trace_events(struct probe_trace_event *tevs,
return ret;
}

-static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
- int ntevs, const char *module)
+static int
+post_process_module_probe_trace_events(struct probe_trace_event *tevs,
+ int ntevs, const char *module,
+ struct debuginfo *dinfo)
{
+ Dwarf_Addr text_offs = 0;
int i, ret = 0;
char *mod_name = NULL;
+ struct map *map;

if (!module)
return 0;

- mod_name = find_module_name(module);
+ map = get_target_map(module, false);
+ if (!map || debuginfo__get_text_offset(dinfo, &text_offs, true) < 0) {
+ pr_warning("Failed to get ELF symbols for %s\n", module);
+ return -EINVAL;
+ }

+ mod_name = find_module_name(module);
for (i = 0; i < ntevs; i++) {
+ ret = post_process_probe_trace_point(&tevs[i].point,
+ map, (unsigned long)text_offs);
+ if (ret < 0)
+ break;
tevs[i].point.module =
strdup(mod_name ? mod_name : module);
if (!tevs[i].point.module) {
@@ -666,6 +679,8 @@ static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
}

free(mod_name);
+ map__put(map);
+
return ret;
}

@@ -722,7 +737,7 @@ arch__post_process_probe_trace_events(struct perf_probe_event *pev __maybe_unuse
static int post_process_probe_trace_events(struct perf_probe_event *pev,
struct probe_trace_event *tevs,
int ntevs, const char *module,
- bool uprobe)
+ bool uprobe, struct debuginfo *dinfo)
{
int ret;

@@ -730,7 +745,8 @@ static int post_process_probe_trace_events(struct perf_probe_event *pev,
ret = add_exec_to_probe_trace_events(tevs, ntevs, module);
else if (module)
/* Currently ref_reloc_sym based probe is not for drivers */
- ret = add_module_to_probe_trace_events(tevs, ntevs, module);
+ ret = post_process_module_probe_trace_events(tevs, ntevs,
+ module, dinfo);
else
ret = post_process_kernel_probe_trace_events(tevs, ntevs);

@@ -774,30 +790,27 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
}
}

- debuginfo__delete(dinfo);
-
if (ntevs > 0) { /* Succeeded to find trace events */
pr_debug("Found %d probe_trace_events.\n", ntevs);
ret = post_process_probe_trace_events(pev, *tevs, ntevs,
- pev->target, pev->uprobes);
+ pev->target, pev->uprobes, dinfo);
if (ret < 0 || ret == ntevs) {
+ pr_debug("Post processing failed or all events are skipped. (%d)\n", ret);
clear_probe_trace_events(*tevs, ntevs);
zfree(tevs);
+ ntevs = 0;
}
- if (ret != ntevs)
- return ret < 0 ? ret : ntevs;
- ntevs = 0;
- /* Fall through */
}

+ debuginfo__delete(dinfo);
+
if (ntevs == 0) { /* No error but failed to find probe point. */
pr_warning("Probe point '%s' not found.\n",
synthesize_perf_probe_point(&pev->point));
return -ENOENT;
- }
- /* Error path : ntevs < 0 */
- pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);
- if (ntevs < 0) {
+ } else if (ntevs < 0) {
+ /* Error path : ntevs < 0 */
+ pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);
if (ntevs == -EBADF)
pr_warning("Warning: No dwarf info found in the vmlinux - "
"please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index df4debe564da..0d9d6e0803b8 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -1501,7 +1501,8 @@ int debuginfo__find_available_vars_at(struct debuginfo *dbg,
}

/* For the kernel module, we need a special code to get a DIE */
-static int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs)
+int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs,
+ bool adjust_offset)
{
int n, i;
Elf32_Word shndx;
@@ -1530,6 +1531,8 @@ static int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs)
if (!shdr)
return -ENOENT;
*offs = shdr->sh_addr;
+ if (adjust_offset)
+ *offs -= shdr->sh_offset;
}
}
return 0;
@@ -1543,16 +1546,12 @@ int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
Dwarf_Addr _addr = 0, baseaddr = 0;
const char *fname = NULL, *func = NULL, *basefunc = NULL, *tmp;
int baseline = 0, lineno = 0, ret = 0;
- bool reloc = false;

-retry:
+ /* We always need to relocate the address for aranges */
+ if (debuginfo__get_text_offset(dbg, &baseaddr, false) == 0)
+ addr += baseaddr;
/* Find cu die */
if (!dwarf_addrdie(dbg->dbg, (Dwarf_Addr)addr, &cudie)) {
- if (!reloc && debuginfo__get_text_offset(dbg, &baseaddr) == 0) {
- addr += baseaddr;
- reloc = true;
- goto retry;
- }
pr_warning("Failed to find debug information for address %lx\n",
addr);
ret = -EINVAL;
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index f1d8558f498e..2956c5198652 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -46,6 +46,9 @@ int debuginfo__find_trace_events(struct debuginfo *dbg,
int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
struct perf_probe_point *ppt);

+int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs,
+ bool adjust_offset);
+
/* Find a line range */
int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr);