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Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net

hifive-unleashed-5.1
David S. Miller 2018-07-24 19:21:58 -07:00
parent aea5f654e6 9981b4fb86
commit 19725496da
124 changed files with 1267 additions and 700 deletions
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2
MAINTAINERS
View File

@ -9074,7 +9074,7 @@ S: Maintained
F: drivers/usb/mtu3/
MEGACHIPS STDPXXXX-GE-B850V3-FW LVDS/DP++ BRIDGES
M: Peter Senna Tschudin <peter.senna@collabora.com>
M: Peter Senna Tschudin <peter.senna@gmail.com>
M: Martin Donnelly <martin.donnelly@ge.com>
M: Martyn Welch <martyn.welch@collabora.co.uk>
S: Maintained

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 4
PATCHLEVEL = 18
SUBLEVEL = 0
EXTRAVERSION = -rc5
EXTRAVERSION = -rc6
NAME = Merciless Moray
# *DOCUMENTATION*

5
arch/alpha/kernel/osf_sys.c
View File

@ -1180,13 +1180,10 @@ SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru)
SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options,
struct rusage32 __user *, ur)
{
unsigned int status = 0;
struct rusage r;
long err = kernel_wait4(pid, &status, options, &r);
long err = kernel_wait4(pid, ustatus, options, &r);
if (err <= 0)
return err;
if (put_user(status, ustatus))
return -EFAULT;
if (!ur)
return err;
if (put_tv_to_tv32(&ur->ru_utime, &r.ru_utime))

2
arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
View File

@ -692,7 +692,7 @@
dsa,member = <0 0>;
eeprom-length = <512>;
interrupt-parent = <&gpio6>;
interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <2>;

9
arch/arm/boot/dts/omap4-droid4-xt894.dts
View File

@ -159,13 +159,7 @@
dais = <&mcbsp2_port>, <&mcbsp3_port>;
};
};
&dss {
status = "okay";
};
&gpio6 {
pwm8: dmtimer-pwm-8 {
pinctrl-names = "default";
pinctrl-0 = <&vibrator_direction_pin>;
@ -192,7 +186,10 @@
pwm-names = "enable", "direction";
direction-duty-cycle-ns = <10000000>;
};
};
&dss {
status = "okay";
};
&dsi1 {

6
arch/ia64/kernel/perfmon.c
View File

@ -2278,17 +2278,15 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
DPRINT(("smpl_buf @%p\n", smpl_buf));
/* allocate vma */
vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
vma = vm_area_alloc(mm);
if (!vma) {
DPRINT(("Cannot allocate vma\n"));
goto error_kmem;
}
INIT_LIST_HEAD(&vma->anon_vma_chain);
/*
* partially initialize the vma for the sampling buffer
*/
vma->vm_mm = mm;
vma->vm_file = get_file(filp);
vma->vm_flags = VM_READ|VM_MAYREAD|VM_DONTEXPAND|VM_DONTDUMP;
vma->vm_page_prot = PAGE_READONLY; /* XXX may need to change */
@ -2346,7 +2344,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t
return 0;
error:
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
error_kmem:
pfm_rvfree(smpl_buf, size);

12
arch/ia64/mm/init.c
View File

@ -114,10 +114,8 @@ ia64_init_addr_space (void)
* the problem. When the process attempts to write to the register backing store
* for the first time, it will get a SEGFAULT in this case.
*/
vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
vma = vm_area_alloc(current->mm);
if (vma) {
INIT_LIST_HEAD(&vma->anon_vma_chain);
vma->vm_mm = current->mm;
vma->vm_start = current->thread.rbs_bot & PAGE_MASK;
vma->vm_end = vma->vm_start + PAGE_SIZE;
vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT;
@ -125,7 +123,7 @@ ia64_init_addr_space (void)
down_write(&current->mm->mmap_sem);
if (insert_vm_struct(current->mm, vma)) {
up_write(&current->mm->mmap_sem);
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
return;
}
up_write(&current->mm->mmap_sem);
@ -133,10 +131,8 @@ ia64_init_addr_space (void)
/* map NaT-page at address zero to speed up speculative dereferencing of NULL: */
if (!(current->personality & MMAP_PAGE_ZERO)) {
vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
vma = vm_area_alloc(current->mm);
if (vma) {
INIT_LIST_HEAD(&vma->anon_vma_chain);
vma->vm_mm = current->mm;
vma->vm_end = PAGE_SIZE;
vma->vm_page_prot = __pgprot(pgprot_val(PAGE_READONLY) | _PAGE_MA_NAT);
vma->vm_flags = VM_READ | VM_MAYREAD | VM_IO |
@ -144,7 +140,7 @@ ia64_init_addr_space (void)
down_write(&current->mm->mmap_sem);
if (insert_vm_struct(current->mm, vma)) {
up_write(&current->mm->mmap_sem);
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
return;
}
up_write(&current->mm->mmap_sem);

2
arch/mips/ath79/common.c
View File

@ -58,7 +58,7 @@ EXPORT_SYMBOL_GPL(ath79_ddr_ctrl_init);
void ath79_ddr_wb_flush(u32 reg)
{
void __iomem *flush_reg = ath79_ddr_wb_flush_base + reg;
void __iomem *flush_reg = ath79_ddr_wb_flush_base + (reg * 4);
/* Flush the DDR write buffer. */
__raw_writel(0x1, flush_reg);

2
arch/mips/pci/pci.c
View File

@ -54,5 +54,5 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar,
phys_addr_t size = resource_size(rsrc);
*start = fixup_bigphys_addr(rsrc->start, size);
*end = rsrc->start + size;
*end = rsrc->start + size - 1;
}

1
arch/powerpc/Makefile
View File

@ -243,6 +243,7 @@ endif
cpu-as-$(CONFIG_4xx) += -Wa,-m405
cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec)
cpu-as-$(CONFIG_E200) += -Wa,-me200
cpu-as-$(CONFIG_E500) += -Wa,-me500
cpu-as-$(CONFIG_PPC_BOOK3S_64) += -Wa,-mpower4
cpu-as-$(CONFIG_PPC_E500MC) += $(call as-option,-Wa$(comma)-me500mc)

4
arch/powerpc/include/asm/mmu_context.h
View File

@ -35,9 +35,9 @@ extern struct mm_iommu_table_group_mem_t *mm_iommu_lookup_rm(
extern struct mm_iommu_table_group_mem_t *mm_iommu_find(struct mm_struct *mm,
unsigned long ua, unsigned long entries);
extern long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem,
unsigned long ua, unsigned long *hpa);
unsigned long ua, unsigned int pageshift, unsigned long *hpa);
extern long mm_iommu_ua_to_hpa_rm(struct mm_iommu_table_group_mem_t *mem,
unsigned long ua, unsigned long *hpa);
unsigned long ua, unsigned int pageshift, unsigned long *hpa);
extern long mm_iommu_mapped_inc(struct mm_iommu_table_group_mem_t *mem);
extern void mm_iommu_mapped_dec(struct mm_iommu_table_group_mem_t *mem);
#endif

2
arch/powerpc/kernel/idle_book3s.S
View File

@ -144,7 +144,9 @@ power9_restore_additional_sprs:
mtspr SPRN_MMCR1, r4
ld r3, STOP_MMCR2(r13)
ld r4, PACA_SPRG_VDSO(r13)
mtspr SPRN_MMCR2, r3
mtspr SPRN_SPRG3, r4
blr
/*

2
arch/powerpc/kvm/book3s_64_vio.c
View File

@ -449,7 +449,7 @@ long kvmppc_tce_iommu_do_map(struct kvm *kvm, struct iommu_table *tbl,
/* This only handles v2 IOMMU type, v1 is handled via ioctl() */
return H_TOO_HARD;
if (WARN_ON_ONCE(mm_iommu_ua_to_hpa(mem, ua, &hpa)))
if (WARN_ON_ONCE(mm_iommu_ua_to_hpa(mem, ua, tbl->it_page_shift, &hpa)))
return H_HARDWARE;
if (mm_iommu_mapped_inc(mem))

6
arch/powerpc/kvm/book3s_64_vio_hv.c
View File

@ -279,7 +279,8 @@ static long kvmppc_rm_tce_iommu_do_map(struct kvm *kvm, struct iommu_table *tbl,
if (!mem)
return H_TOO_HARD;
if (WARN_ON_ONCE_RM(mm_iommu_ua_to_hpa_rm(mem, ua, &hpa)))
if (WARN_ON_ONCE_RM(mm_iommu_ua_to_hpa_rm(mem, ua, tbl->it_page_shift,
&hpa)))
return H_HARDWARE;
pua = (void *) vmalloc_to_phys(pua);
@ -469,7 +470,8 @@ long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
mem = mm_iommu_lookup_rm(vcpu->kvm->mm, ua, IOMMU_PAGE_SIZE_4K);
if (mem)
prereg = mm_iommu_ua_to_hpa_rm(mem, ua, &tces) == 0;
prereg = mm_iommu_ua_to_hpa_rm(mem, ua,
IOMMU_PAGE_SHIFT_4K, &tces) == 0;
}
if (!prereg) {

37
arch/powerpc/mm/mmu_context_iommu.c
View File

@ -19,6 +19,7 @@
#include <linux/hugetlb.h>
#include <linux/swap.h>
#include <asm/mmu_context.h>
#include <asm/pte-walk.h>
static DEFINE_MUTEX(mem_list_mutex);
@ -27,6 +28,7 @@ struct mm_iommu_table_group_mem_t {
struct rcu_head rcu;
unsigned long used;
atomic64_t mapped;
unsigned int pageshift;
u64 ua; /* userspace address */
u64 entries; /* number of entries in hpas[] */
u64 *hpas; /* vmalloc'ed */
@ -125,6 +127,8 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries,
{
struct mm_iommu_table_group_mem_t *mem;
long i, j, ret = 0, locked_entries = 0;
unsigned int pageshift;
unsigned long flags;
struct page *page = NULL;
mutex_lock(&mem_list_mutex);
@ -159,6 +163,12 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries,
goto unlock_exit;
}
/*
* For a starting point for a maximum page size calculation
* we use @ua and @entries natural alignment to allow IOMMU pages
* smaller than huge pages but still bigger than PAGE_SIZE.
*/
mem->pageshift = __ffs(ua | (entries << PAGE_SHIFT));
mem->hpas = vzalloc(array_size(entries, sizeof(mem->hpas[0])));
if (!mem->hpas) {
kfree(mem);
@ -199,6 +209,23 @@ long mm_iommu_get(struct mm_struct *mm, unsigned long ua, unsigned long entries,
}
}
populate:
pageshift = PAGE_SHIFT;
if (PageCompound(page)) {
pte_t *pte;
struct page *head = compound_head(page);
unsigned int compshift = compound_order(head);
local_irq_save(flags); /* disables as well */
pte = find_linux_pte(mm->pgd, ua, NULL, &pageshift);
local_irq_restore(flags);
/* Double check it is still the same pinned page */
if (pte && pte_page(*pte) == head &&
pageshift == compshift)
pageshift = max_t(unsigned int, pageshift,
PAGE_SHIFT);
}
mem->pageshift = min(mem->pageshift, pageshift);
mem->hpas[i] = page_to_pfn(page) << PAGE_SHIFT;
}
@ -349,7 +376,7 @@ struct mm_iommu_table_group_mem_t *mm_iommu_find(struct mm_struct *mm,
EXPORT_SYMBOL_GPL(mm_iommu_find);
long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem,
unsigned long ua, unsigned long *hpa)
unsigned long ua, unsigned int pageshift, unsigned long *hpa)
{
const long entry = (ua - mem->ua) >> PAGE_SHIFT;
u64 *va = &mem->hpas[entry];
@ -357,6 +384,9 @@ long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem,
if (entry >= mem->entries)
return -EFAULT;
if (pageshift > mem->pageshift)
return -EFAULT;
*hpa = *va | (ua & ~PAGE_MASK);
return 0;
@ -364,7 +394,7 @@ long mm_iommu_ua_to_hpa(struct mm_iommu_table_group_mem_t *mem,
EXPORT_SYMBOL_GPL(mm_iommu_ua_to_hpa);
long mm_iommu_ua_to_hpa_rm(struct mm_iommu_table_group_mem_t *mem,
unsigned long ua, unsigned long *hpa)
unsigned long ua, unsigned int pageshift, unsigned long *hpa)
{
const long entry = (ua - mem->ua) >> PAGE_SHIFT;
void *va = &mem->hpas[entry];
@ -373,6 +403,9 @@ long mm_iommu_ua_to_hpa_rm(struct mm_iommu_table_group_mem_t *mem,
if (entry >= mem->entries)
return -EFAULT;
if (pageshift > mem->pageshift)
return -EFAULT;
pa = (void *) vmalloc_to_phys(va);
if (!pa)
return -EFAULT;

29
arch/powerpc/net/bpf_jit_comp64.c
View File

@ -286,6 +286,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image,
u64 imm64;
u8 *func;
u32 true_cond;
u32 tmp_idx;
/*
* addrs[] maps a BPF bytecode address into a real offset from
@ -637,11 +638,7 @@ emit_clear:
case BPF_STX | BPF_XADD | BPF_W:
/* Get EA into TMP_REG_1 */
PPC_ADDI(b2p[TMP_REG_1], dst_reg, off);
/* error if EA is not word-aligned */
PPC_ANDI(b2p[TMP_REG_2], b2p[TMP_REG_1], 0x03);
PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + 12);
PPC_LI(b2p[BPF_REG_0], 0);
PPC_JMP(exit_addr);
tmp_idx = ctx->idx * 4;
/* load value from memory into TMP_REG_2 */
PPC_BPF_LWARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
/* add value from src_reg into this */
@ -649,32 +646,16 @@ emit_clear:
/* store result back */
PPC_BPF_STWCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
/* we're done if this succeeded */
PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (7*4));
/* otherwise, let's try once more */
PPC_BPF_LWARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg);
PPC_BPF_STWCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
/* exit if the store was not successful */
PPC_LI(b2p[BPF_REG_0], 0);
PPC_BCC(COND_NE, exit_addr);
PPC_BCC_SHORT(COND_NE, tmp_idx);
break;
/* *(u64 *)(dst + off) += src */
case BPF_STX | BPF_XADD | BPF_DW:
PPC_ADDI(b2p[TMP_REG_1], dst_reg, off);
/* error if EA is not doubleword-aligned */
PPC_ANDI(b2p[TMP_REG_2], b2p[TMP_REG_1], 0x07);
PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (3*4));
PPC_LI(b2p[BPF_REG_0], 0);
PPC_JMP(exit_addr);
tmp_idx = ctx->idx * 4;
PPC_BPF_LDARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg);
PPC_BPF_STDCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (7*4));
PPC_BPF_LDARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0);
PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg);
PPC_BPF_STDCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]);
PPC_LI(b2p[BPF_REG_0], 0);
PPC_BCC(COND_NE, exit_addr);
PPC_BCC_SHORT(COND_NE, tmp_idx);
break;
/*

4
arch/powerpc/xmon/xmon.c
View File

@ -2734,7 +2734,7 @@ generic_inst_dump(unsigned long adr, long count, int praddr,
{
int nr, dotted;
unsigned long first_adr;
unsigned long inst, last_inst = 0;
unsigned int inst, last_inst = 0;
unsigned char val[4];
dotted = 0;
@ -2758,7 +2758,7 @@ generic_inst_dump(unsigned long adr, long count, int praddr,
dotted = 0;
last_inst = inst;
if (praddr)
printf(REG" %.8lx", adr, inst);
printf(REG" %.8x", adr, inst);
printf("\t");
dump_func(inst, adr);
printf("\n");

2
arch/s390/Kconfig
View File

@ -140,7 +140,7 @@ config S390
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_GCC_PLUGINS
select HAVE_GCC_PLUGINS if BROKEN
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_LZ4

2
arch/x86/Kconfig
View File

@ -63,7 +63,7 @@ config X86
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_REFCOUNT
select ARCH_HAS_UACCESS_FLUSHCACHE if X86_64
select ARCH_HAS_UACCESS_MCSAFE if X86_64
select ARCH_HAS_UACCESS_MCSAFE if X86_64 && X86_MCE
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_STRICT_KERNEL_RWX

8
arch/x86/events/intel/ds.c
View File

@ -408,9 +408,11 @@ static int alloc_bts_buffer(int cpu)
ds->bts_buffer_base = (unsigned long) cea;
ds_update_cea(cea, buffer, BTS_BUFFER_SIZE, PAGE_KERNEL);
ds->bts_index = ds->bts_buffer_base;
max = BTS_RECORD_SIZE * (BTS_BUFFER_SIZE / BTS_RECORD_SIZE);
ds->bts_absolute_maximum = ds->bts_buffer_base + max;
ds->bts_interrupt_threshold = ds->bts_absolute_maximum - (max / 16);
max = BTS_BUFFER_SIZE / BTS_RECORD_SIZE;
ds->bts_absolute_maximum = ds->bts_buffer_base +
max * BTS_RECORD_SIZE;
ds->bts_interrupt_threshold = ds->bts_absolute_maximum -
(max / 16) * BTS_RECORD_SIZE;
return 0;
}

6
arch/x86/include/asm/apm.h
View File

@ -7,8 +7,6 @@
#ifndef _ASM_X86_MACH_DEFAULT_APM_H
#define _ASM_X86_MACH_DEFAULT_APM_H
#include <asm/nospec-branch.h>
#ifdef APM_ZERO_SEGS
# define APM_DO_ZERO_SEGS \
"pushl %%ds\n\t" \
@ -34,7 +32,6 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
* N.B. We do NOT need a cld after the BIOS call
* because we always save and restore the flags.
*/
firmware_restrict_branch_speculation_start();
__asm__ __volatile__(APM_DO_ZERO_SEGS
"pushl %%edi\n\t"
"pushl %%ebp\n\t"
@ -47,7 +44,6 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
"=S" (*esi)
: "a" (func), "b" (ebx_in), "c" (ecx_in)
: "memory", "cc");
firmware_restrict_branch_speculation_end();
}
static inline bool apm_bios_call_simple_asm(u32 func, u32 ebx_in,
@ -60,7 +56,6 @@ static inline bool apm_bios_call_simple_asm(u32 func, u32 ebx_in,
* N.B. We do NOT need a cld after the BIOS call
* because we always save and restore the flags.
*/
firmware_restrict_branch_speculation_start();
__asm__ __volatile__(APM_DO_ZERO_SEGS
"pushl %%edi\n\t"
"pushl %%ebp\n\t"
@ -73,7 +68,6 @@ static inline bool apm_bios_call_simple_asm(u32 func, u32 ebx_in,
"=S" (si)
: "a" (func), "b" (ebx_in), "c" (ecx_in)
: "memory", "cc");
firmware_restrict_branch_speculation_end();
return error;
}

7
arch/x86/include/asm/uaccess_64.h
View File

@ -52,7 +52,12 @@ copy_to_user_mcsafe(void *to, const void *from, unsigned len)
unsigned long ret;
__uaccess_begin();
ret = memcpy_mcsafe(to, from, len);
/*
* Note, __memcpy_mcsafe() is explicitly used since it can
* handle exceptions / faults. memcpy_mcsafe() may fall back to
* memcpy() which lacks this handling.
*/
ret = __memcpy_mcsafe(to, from, len);
__uaccess_end();
return ret;
}

5
arch/x86/kernel/apm_32.c
View File

@ -240,6 +240,7 @@
#include <asm/olpc.h>
#include <asm/paravirt.h>
#include <asm/reboot.h>
#include <asm/nospec-branch.h>
#if defined(CONFIG_APM_DISPLAY_BLANK) && defined(CONFIG_VT)
extern int (*console_blank_hook)(int);
@ -614,11 +615,13 @@ static long __apm_bios_call(void *_call)
gdt[0x40 / 8] = bad_bios_desc;
apm_irq_save(flags);
firmware_restrict_branch_speculation_start();
APM_DO_SAVE_SEGS;
apm_bios_call_asm(call->func, call->ebx, call->ecx,
&call->eax, &call->ebx, &call->ecx, &call->edx,
&call->esi);
APM_DO_RESTORE_SEGS;
firmware_restrict_branch_speculation_end();
apm_irq_restore(flags);
gdt[0x40 / 8] = save_desc_40;
put_cpu();
@ -690,10 +693,12 @@ static long __apm_bios_call_simple(void *_call)
gdt[0x40 / 8] = bad_bios_desc;
apm_irq_save(flags);
firmware_restrict_branch_speculation_start();
APM_DO_SAVE_SEGS;
error = apm_bios_call_simple_asm(call->func, call->ebx, call->ecx,
&call->eax);
APM_DO_RESTORE_SEGS;
firmware_restrict_branch_speculation_end();
apm_irq_restore(flags);
gdt[0x40 / 8] = save_desc_40;
put_cpu();

3
arch/x86/kernel/cpu/mcheck/mce.c
View File

@ -2165,9 +2165,6 @@ static ssize_t store_int_with_restart(struct device *s,
if (check_interval == old_check_interval)
return ret;
if (check_interval < 1)
check_interval = 1;
mutex_lock(&mce_sysfs_mutex);
mce_restart();
mutex_unlock(&mce_sysfs_mutex);

16
drivers/gpu/drm/drm_lease.c
View File

@ -553,24 +553,13 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev,
/* Clone the lessor file to create a new file for us */
DRM_DEBUG_LEASE("Allocating lease file\n");
path_get(&lessor_file->f_path);
lessee_file = alloc_file(&lessor_file->f_path,
lessor_file->f_mode,
fops_get(lessor_file->f_inode->i_fop));
lessee_file = filp_clone_open(lessor_file);
if (IS_ERR(lessee_file)) {
ret = PTR_ERR(lessee_file);
goto out_lessee;
}
/* Initialize the new file for DRM */
DRM_DEBUG_LEASE("Initializing the file with %p\n", lessee_file->f_op->open);
ret = lessee_file->f_op->open(lessee_file->f_inode, lessee_file);
if (ret)
goto out_lessee_file;
lessee_priv = lessee_file->private_data;
/* Change the file to a master one */
drm_master_put(&lessee_priv->master);
lessee_priv->master = lessee;
@ -588,9 +577,6 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev,
DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl succeeded\n");
return 0;
out_lessee_file:
fput(lessee_file);
out_lessee:
drm_master_put(&lessee);

8
drivers/misc/cxl/api.c
View File

@ -103,15 +103,15 @@ static struct file *cxl_getfile(const char *name,
d_instantiate(path.dentry, inode);
file = alloc_file(&path, OPEN_FMODE(flags), fops);
if (IS_ERR(file))
goto err_dput;
if (IS_ERR(file)) {
path_put(&path);
goto err_fs;
}
file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
file->private_data = priv;
return file;
err_dput:
path_put(&path);
err_inode:
iput(inode);
err_fs:

23
drivers/net/bonding/bond_options.c
View File

@ -743,15 +743,20 @@ const struct bond_option *bond_opt_get(unsigned int option)
static int bond_option_mode_set(struct bonding *bond,
const struct bond_opt_value *newval)
{
if (!bond_mode_uses_arp(newval->value) && bond->params.arp_interval) {
netdev_dbg(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n",
newval->string);
/* disable arp monitoring */
bond->params.arp_interval = 0;
/* set miimon to default value */
bond->params.miimon = BOND_DEFAULT_MIIMON;
netdev_dbg(bond->dev, "Setting MII monitoring interval to %d\n",
bond->params.miimon);
if (!bond_mode_uses_arp(newval->value)) {
if (bond->params.arp_interval) {
netdev_dbg(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n",
newval->string);
/* disable arp monitoring */
bond->params.arp_interval = 0;
}
if (!bond->params.miimon) {
/* set miimon to default value */
bond->params.miimon = BOND_DEFAULT_MIIMON;
netdev_dbg(bond->dev, "Setting MII monitoring interval to %d\n",
bond->params.miimon);
}
}
if (newval->value == BOND_MODE_ALB)

18
drivers/net/can/m_can/m_can.c
View File

@ -634,10 +634,12 @@ static int m_can_clk_start(struct m_can_priv *priv)
int err;
err = pm_runtime_get_sync(priv->device);
if (err)
if (err < 0) {
pm_runtime_put_noidle(priv->device);
return err;
}
return err;
return 0;
}
static void m_can_clk_stop(struct m_can_priv *priv)
@ -1109,7 +1111,8 @@ static void m_can_chip_config(struct net_device *dev)
} else {
/* Version 3.1.x or 3.2.x */
cccr &= ~(CCCR_TEST | CCCR_MON | CCCR_BRSE | CCCR_FDOE);
cccr &= ~(CCCR_TEST | CCCR_MON | CCCR_BRSE | CCCR_FDOE |
CCCR_NISO);
/* Only 3.2.x has NISO Bit implemented */
if (priv->can.ctrlmode & CAN_CTRLMODE_FD_NON_ISO)
@ -1642,8 +1645,6 @@ static int m_can_plat_probe(struct platform_device *pdev)
priv->can.clock.freq = clk_get_rate(cclk);
priv->mram_base = mram_addr;
m_can_of_parse_mram(priv, mram_config_vals);
platform_set_drvdata(pdev, dev);
SET_NETDEV_DEV(dev, &pdev->dev);
@ -1666,6 +1667,8 @@ static int m_can_plat_probe(struct platform_device *pdev)
goto clk_disable;
}
m_can_of_parse_mram(priv, mram_config_vals);
devm_can_led_init(dev);
of_can_transceiver(dev);
@ -1687,8 +1690,6 @@ failed_ret:
return ret;
}
/* TODO: runtime PM with power down or sleep mode */
static __maybe_unused int m_can_suspend(struct device *dev)
{
struct net_device *ndev = dev_get_drvdata(dev);
@ -1715,8 +1716,6 @@ static __maybe_unused int m_can_resume(struct device *dev)
pinctrl_pm_select_default_state(dev);
m_can_init_ram(priv);
priv->can.state = CAN_STATE_ERROR_ACTIVE;
if (netif_running(ndev)) {
@ -1726,6 +1725,7 @@ static __maybe_unused int m_can_resume(struct device *dev)
if (ret)
return ret;
m_can_init_ram(priv);
m_can_start(ndev);
netif_device_attach(ndev);
netif_start_queue(ndev);

5
drivers/net/can/mscan/mpc5xxx_can.c
View File

@ -86,6 +86,11 @@ static u32 mpc52xx_can_get_clock(struct platform_device *ofdev,
return 0;
}
cdm = of_iomap(np_cdm, 0);
if (!cdm) {
of_node_put(np_cdm);
dev_err(&ofdev->dev, "can't map clock node!\n");
return 0;
}
if (in_8(&cdm->ipb_clk_sel) & 0x1)
freq *= 2;

19
drivers/net/can/peak_canfd/peak_pciefd_main.c
View File

@ -58,6 +58,10 @@ MODULE_LICENSE("GPL v2");
#define PCIEFD_REG_SYS_VER1 0x0040 /* version reg #1 */
#define PCIEFD_REG_SYS_VER2 0x0044 /* version reg #2 */
#define PCIEFD_FW_VERSION(x, y, z) (((u32)(x) << 24) | \
((u32)(y) << 16) | \
((u32)(z) << 8))
/* System Control Registers Bits */
#define PCIEFD_SYS_CTL_TS_RST 0x00000001 /* timestamp clock */
#define PCIEFD_SYS_CTL_CLK_EN 0x00000002 /* system clock */
@ -782,6 +786,21 @@ static int peak_pciefd_probe(struct pci_dev *pdev,
"%ux CAN-FD PCAN-PCIe FPGA v%u.%u.%u:\n", can_count,
hw_ver_major, hw_ver_minor, hw_ver_sub);
#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
/* FW < v3.3.0 DMA logic doesn't handle correctly the mix of 32-bit and
* 64-bit logical addresses: this workaround forces usage of 32-bit
* DMA addresses only when such a fw is detected.
*/
if (PCIEFD_FW_VERSION(hw_ver_major, hw_ver_minor, hw_ver_sub) <
PCIEFD_FW_VERSION(3, 3, 0)) {
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (err)
dev_warn(&pdev->dev,
"warning: can't set DMA mask %llxh (err %d)\n",
DMA_BIT_MASK(32), err);
}
#endif
/* stop system clock */
pciefd_sys_writereg(pciefd, PCIEFD_SYS_CTL_CLK_EN,
PCIEFD_REG_SYS_CTL_CLR);

392
drivers/net/can/xilinx_can.c
View File

@ -2,6 +2,7 @@
*
* Copyright (C) 2012 - 2014 Xilinx, Inc.
* Copyright (C) 2009 PetaLogix. All rights reserved.
* Copyright (C) 2017 Sandvik Mining and Construction Oy
*
* Description:
* This driver is developed for Axi CAN IP and for Zynq CANPS Controller.
@ -25,8 +26,10 @@
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/can/dev.h>
@ -101,7 +104,7 @@ enum xcan_reg {
#define XCAN_INTR_ALL (XCAN_IXR_TXOK_MASK | XCAN_IXR_BSOFF_MASK |\
XCAN_IXR_WKUP_MASK | XCAN_IXR_SLP_MASK | \
XCAN_IXR_RXNEMP_MASK | XCAN_IXR_ERROR_MASK | \
XCAN_IXR_ARBLST_MASK | XCAN_IXR_RXOK_MASK)
XCAN_IXR_RXOFLW_MASK | XCAN_IXR_ARBLST_MASK)
/* CAN register bit shift - XCAN_<REG>_<BIT>_SHIFT */
#define XCAN_BTR_SJW_SHIFT 7 /* Synchronous jump width */
@ -118,6 +121,7 @@ enum xcan_reg {
/**
* struct xcan_priv - This definition define CAN driver instance
* @can: CAN private data structure.
* @tx_lock: Lock for synchronizing TX interrupt handling
* @tx_head: Tx CAN packets ready to send on the queue
* @tx_tail: Tx CAN packets successfully sended on the queue
* @tx_max: Maximum number packets the driver can send
@ -132,6 +136,7 @@ enum xcan_reg {
*/
struct xcan_priv {
struct can_priv can;
spinlock_t tx_lock;
unsigned int tx_head;
unsigned int tx_tail;
unsigned int tx_max;
@ -159,6 +164,11 @@ static const struct can_bittiming_const xcan_bittiming_const = {
.brp_inc = 1,
};
#define XCAN_CAP_WATERMARK 0x0001
struct xcan_devtype_data {
unsigned int caps;
};
/**
* xcan_write_reg_le - Write a value to the device register little endian
* @priv: Driver private data structure
@ -238,6 +248,10 @@ static int set_reset_mode(struct net_device *ndev)
usleep_range(500, 10000);
}
/* reset clears FIFOs */
priv->tx_head = 0;
priv->tx_tail = 0;
return 0;
}
@ -392,6 +406,7 @@ static int xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev)
struct net_device_stats *stats = &ndev->stats;
struct can_frame *cf = (struct can_frame *)skb->data;
u32 id, dlc, data[2] = {0, 0};
unsigned long flags;
if (can_dropped_invalid_skb(ndev, skb))
return NETDEV_TX_OK;
@ -439,6 +454,9 @@ static int xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev)
data[1] = be32_to_cpup((__be32 *)(cf->data + 4));
can_put_echo_skb(skb, ndev, priv->tx_head % priv->tx_max);
spin_lock_irqsave(&priv->tx_lock, flags);
priv->tx_head++;
/* Write the Frame to Xilinx CAN TX FIFO */
@ -454,10 +472,16 @@ static int xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev)
stats->tx_bytes += cf->can_dlc;
}
/* Clear TX-FIFO-empty interrupt for xcan_tx_interrupt() */
if (priv->tx_max > 1)
priv->write_reg(priv, XCAN_ICR_OFFSET, XCAN_IXR_TXFEMP_MASK);
/* Check if the TX buffer is full */
if ((priv->tx_head - priv->tx_tail) == priv->tx_max)
netif_stop_queue(ndev);
spin_unlock_irqrestore(&priv->tx_lock, flags);
return NETDEV_TX_OK;
}
@ -529,6 +553,123 @@ static int xcan_rx(struct net_device *ndev)
return 1;
}
/**
* xcan_current_error_state - Get current error state from HW
* @ndev: Pointer to net_device structure
*
* Checks the current CAN error state from the HW. Note that this
* only checks for ERROR_PASSIVE and ERROR_WARNING.
*
* Return:
* ERROR_PASSIVE or ERROR_WARNING if either is active, ERROR_ACTIVE
* otherwise.
*/
static enum can_state xcan_current_error_state(struct net_device *ndev)
{
struct xcan_priv *priv = netdev_priv(ndev);
u32 status = priv->read_reg(priv, XCAN_SR_OFFSET);
if ((status & XCAN_SR_ESTAT_MASK) == XCAN_SR_ESTAT_MASK)
return CAN_STATE_ERROR_PASSIVE;
else if (status & XCAN_SR_ERRWRN_MASK)
return CAN_STATE_ERROR_WARNING;
else
return CAN_STATE_ERROR_ACTIVE;
}
/**
* xcan_set_error_state - Set new CAN error state
* @ndev: Pointer to net_device structure
* @new_state: The new CAN state to be set
* @cf: Error frame to be populated or NULL
*
* Set new CAN error state for the device, updating statistics and
* populating the error frame if given.
*/
static void xcan_set_error_state(struct net_device *ndev,
enum can_state new_state,
struct can_frame *cf)
{
struct xcan_priv *priv = netdev_priv(ndev);
u32 ecr = priv->read_reg(priv, XCAN_ECR_OFFSET);
u32 txerr = ecr & XCAN_ECR_TEC_MASK;
u32 rxerr = (ecr & XCAN_ECR_REC_MASK) >> XCAN_ESR_REC_SHIFT;
priv->can.state = new_state;
if (cf) {
cf->can_id |= CAN_ERR_CRTL;
cf->data[6] = txerr;
cf->data[7] = rxerr;
}
switch (new_state) {
case CAN_STATE_ERROR_PASSIVE:
priv->can.can_stats.error_passive++;
if (cf)
cf->data[1] = (rxerr > 127) ?
CAN_ERR_CRTL_RX_PASSIVE :
CAN_ERR_CRTL_TX_PASSIVE;
break;
case CAN_STATE_ERROR_WARNING:
priv->can.can_stats.error_warning++;
if (cf)
cf->data[1] |= (txerr > rxerr) ?
CAN_ERR_CRTL_TX_WARNING :
CAN_ERR_CRTL_RX_WARNING;
break;
case CAN_STATE_ERROR_ACTIVE:
if (cf)
cf->data[1] |= CAN_ERR_CRTL_ACTIVE;
break;
default:
/* non-ERROR states are handled elsewhere */
WARN_ON(1);
break;
}
}
/**
* xcan_update_error_state_after_rxtx - Update CAN error state after RX/TX
* @ndev: Pointer to net_device structure
*
* If the device is in a ERROR-WARNING or ERROR-PASSIVE state, check if
* the performed RX/TX has caused it to drop to a lesser state and set
* the interface state accordingly.
*/
static void xcan_update_error_state_after_rxtx(struct net_device *ndev)
{
struct xcan_priv *priv = netdev_priv(ndev);
enum can_state old_state = priv->can.state;
enum can_state new_state;
/* changing error state due to successful frame RX/TX can only
* occur from these states
*/
if (old_state != CAN_STATE_ERROR_WARNING &&
old_state != CAN_STATE_ERROR_PASSIVE)
return;
new_state = xcan_current_error_state(ndev);
if (new_state != old_state) {
struct sk_buff *skb;
struct can_frame *cf;
skb = alloc_can_err_skb(ndev, &cf);
xcan_set_error_state(ndev, new_state, skb ? cf : NULL);
if (skb) {
struct net_device_stats *stats = &ndev->stats;
stats->rx_packets++;
stats->rx_bytes += cf->can_dlc;
netif_rx(skb);
}
}
}
/**
* xcan_err_interrupt - error frame Isr
* @ndev: net_device pointer
@ -544,16 +685,12 @@ static void xcan_err_interrupt(struct net_device *ndev, u32 isr)
struct net_device_stats *stats = &ndev->stats;
struct can_frame *cf;
struct sk_buff *skb;
u32 err_status, status, txerr = 0, rxerr = 0;
u32 err_status;
skb = alloc_can_err_skb(ndev, &cf);
err_status = priv->read_reg(priv, XCAN_ESR_OFFSET);
priv->write_reg(priv, XCAN_ESR_OFFSET, err_status);
txerr = priv->read_reg(priv, XCAN_ECR_OFFSET) & XCAN_ECR_TEC_MASK;
rxerr = ((priv->read_reg(priv, XCAN_ECR_OFFSET) &
XCAN_ECR_REC_MASK) >> XCAN_ESR_REC_SHIFT);
status = priv->read_reg(priv, XCAN_SR_OFFSET);
if (isr & XCAN_IXR_BSOFF_MASK) {
priv->can.state = CAN_STATE_BUS_OFF;
@ -563,28 +700,10 @@ static void xcan_err_interrupt(struct net_device *ndev, u32 isr)
can_bus_off(ndev);
if (skb)
cf->can_id |= CAN_ERR_BUSOFF;
} else if ((status & XCAN_SR_ESTAT_MASK) == XCAN_SR_ESTAT_MASK) {
priv->can.state = CAN_STATE_ERROR_PASSIVE;
priv->can.can_stats.error_passive++;
if (skb) {
cf->can_id |= CAN_ERR_CRTL;
cf->data[1] = (rxerr > 127) ?
CAN_ERR_CRTL_RX_PASSIVE :
CAN_ERR_CRTL_TX_PASSIVE;
cf->data[6] = txerr;
cf->data[7] = rxerr;
}
} else if (status & XCAN_SR_ERRWRN_MASK) {
priv->can.state = CAN_STATE_ERROR_WARNING;
priv->can.can_stats.error_warning++;
if (skb) {
cf->can_id |= CAN_ERR_CRTL;
cf->data[1] |= (txerr > rxerr) ?
CAN_ERR_CRTL_TX_WARNING :
CAN_ERR_CRTL_RX_WARNING;
cf->data[6] = txerr;
cf->data[7] = rxerr;
}
} else {
enum can_state new_state = xcan_current_error_state(ndev);
xcan_set_error_state(ndev, new_state, skb ? cf : NULL);
}
/* Check for Arbitration lost interrupt */
@ -600,7 +719,6 @@ static void xcan_err_interrupt(struct net_device *ndev, u32 isr)
if (isr & XCAN_IXR_RXOFLW_MASK) {
stats->rx_over_errors++;
stats->rx_errors++;
priv->write_reg(priv, XCAN_SRR_OFFSET, XCAN_SRR_RESET_MASK);
if (skb) {
cf->can_id |= CAN_ERR_CRTL;
cf->data[1] |= CAN_ERR_CRTL_RX_OVERFLOW;
@ -709,26 +827,20 @@ static int xcan_rx_poll(struct napi_struct *napi, int quota)
isr = priv->read_reg(priv, XCAN_ISR_OFFSET);
while ((isr & XCAN_IXR_RXNEMP_MASK) && (work_done < quota)) {
if (isr & XCAN_IXR_RXOK_MASK) {
priv->write_reg(priv, XCAN_ICR_OFFSET,
XCAN_IXR_RXOK_MASK);
work_done += xcan_rx(ndev);
} else {
priv->write_reg(priv, XCAN_ICR_OFFSET,
XCAN_IXR_RXNEMP_MASK);
break;
}
work_done += xcan_rx(ndev);
priv->write_reg(priv, XCAN_ICR_OFFSET, XCAN_IXR_RXNEMP_MASK);
isr = priv->read_reg(priv, XCAN_ISR_OFFSET);
}
if (work_done)
if (work_done) {
can_led_event(ndev, CAN_LED_EVENT_RX);
xcan_update_error_state_after_rxtx(ndev);
}
if (work_done < quota) {
napi_complete_done(napi, work_done);
ier = priv->read_reg(priv, XCAN_IER_OFFSET);
ier |= (XCAN_IXR_RXOK_MASK | XCAN_IXR_RXNEMP_MASK);
ier |= XCAN_IXR_RXNEMP_MASK;
priv->write_reg(priv, XCAN_IER_OFFSET, ier);
}
return work_done;
@ -743,18 +855,71 @@ static void xcan_tx_interrupt(struct net_device *ndev, u32 isr)
{
struct xcan_priv *priv = netdev_priv(ndev);
struct net_device_stats *stats = &ndev->stats;
unsigned int frames_in_fifo;
int frames_sent = 1; /* TXOK => at least 1 frame was sent */
unsigned long flags;
int retries = 0;
while ((priv->tx_head - priv->tx_tail > 0) &&
(isr & XCAN_IXR_TXOK_MASK)) {
/* Synchronize with xmit as we need to know the exact number
* of frames in the FIFO to stay in sync due to the TXFEMP
* handling.
* This also prevents a race between netif_wake_queue() and
* netif_stop_queue().
*/
spin_lock_irqsave(&priv->tx_lock, flags);
frames_in_fifo = priv->tx_head - priv->tx_tail;
if (WARN_ON_ONCE(frames_in_fifo == 0)) {
/* clear TXOK anyway to avoid getting back here */
priv->write_reg(priv, XCAN_ICR_OFFSET, XCAN_IXR_TXOK_MASK);
spin_unlock_irqrestore(&priv->tx_lock, flags);
return;
}
/* Check if 2 frames were sent (TXOK only means that at least 1
* frame was sent).
*/
if (frames_in_fifo > 1) {
WARN_ON(frames_in_fifo > priv->tx_max);
/* Synchronize TXOK and isr so that after the loop:
* (1) isr variable is up-to-date at least up to TXOK clear
* time. This avoids us clearing a TXOK of a second frame
* but not noticing that the FIFO is now empty and thus
* marking only a single frame as sent.
* (2) No TXOK is left. Having one could mean leaving a
* stray TXOK as we might process the associated frame
* via TXFEMP handling as we read TXFEMP *after* TXOK
* clear to satisfy (1).
*/
while ((isr & XCAN_IXR_TXOK_MASK) && !WARN_ON(++retries == 100)) {
priv->write_reg(priv, XCAN_ICR_OFFSET, XCAN_IXR_TXOK_MASK);
isr = priv->read_reg(priv, XCAN_ISR_OFFSET);
}
if (isr & XCAN_IXR_TXFEMP_MASK) {
/* nothing in FIFO anymore */
frames_sent = frames_in_fifo;
}
} else {
/* single frame in fifo, just clear TXOK */
priv->write_reg(priv, XCAN_ICR_OFFSET, XCAN_IXR_TXOK_MASK);
}
while (frames_sent--) {
can_get_echo_skb(ndev, priv->tx_tail %
priv->tx_max);
priv->tx_tail++;
stats->tx_packets++;
isr = priv->read_reg(priv, XCAN_ISR_OFFSET);
}
can_led_event(ndev, CAN_LED_EVENT_TX);
netif_wake_queue(ndev);
spin_unlock_irqrestore(&priv->tx_lock, flags);
can_led_event(ndev, CAN_LED_EVENT_TX);
xcan_update_error_state_after_rxtx(ndev);
}
/**
@ -773,6 +938,7 @@ static irqreturn_t xcan_interrupt(int irq, void *dev_id)
struct net_device *ndev = (struct net_device *)dev_id;
struct xcan_priv *priv = netdev_priv(ndev);
u32 isr, ier;
u32 isr_errors;
/* Get the interrupt status from Xilinx CAN */
isr = priv->read_reg(priv, XCAN_ISR_OFFSET);
@ -791,18 +957,17 @@ static irqreturn_t xcan_interrupt(int irq, void *dev_id)
xcan_tx_interrupt(ndev, isr);
/* Check for the type of error interrupt and Processing it */
if (isr & (XCAN_IXR_ERROR_MASK | XCAN_IXR_RXOFLW_MASK |
XCAN_IXR_BSOFF_MASK | XCAN_IXR_ARBLST_MASK)) {
priv->write_reg(priv, XCAN_ICR_OFFSET, (XCAN_IXR_ERROR_MASK |
XCAN_IXR_RXOFLW_MASK | XCAN_IXR_BSOFF_MASK |
XCAN_IXR_ARBLST_MASK));
isr_errors = isr & (XCAN_IXR_ERROR_MASK | XCAN_IXR_RXOFLW_MASK |
XCAN_IXR_BSOFF_MASK | XCAN_IXR_ARBLST_MASK);
if (isr_errors) {
priv->write_reg(priv, XCAN_ICR_OFFSET, isr_errors);
xcan_err_interrupt(ndev, isr);
}
/* Check for the type of receive interrupt and Processing it */
if (isr & (XCAN_IXR_RXNEMP_MASK | XCAN_IXR_RXOK_MASK)) {
if (isr & XCAN_IXR_RXNEMP_MASK) {
ier = priv->read_reg(priv, XCAN_IER_OFFSET);
ier &= ~(XCAN_IXR_RXNEMP_MASK | XCAN_IXR_RXOK_MASK);
ier &= ~XCAN_IXR_RXNEMP_MASK;
priv->write_reg(priv, XCAN_IER_OFFSET, ier);
napi_schedule(&priv->napi);
}
@ -819,13 +984,9 @@ static irqreturn_t xcan_interrupt(int irq, void *dev_id)
static void xcan_chip_stop(struct net_device *ndev)
{
struct xcan_priv *priv = netdev_priv(ndev);
u32 ier;
/* Disable interrupts and leave the can in configuration mode */
ier = priv->read_reg(priv, XCAN_IER_OFFSET);
ier &= ~XCAN_INTR_ALL;
priv->write_reg(priv, XCAN_IER_OFFSET, ier);
priv->write_reg(priv, XCAN_SRR_OFFSET, XCAN_SRR_RESET_MASK);
set_reset_mode(ndev);
priv->can.state = CAN_STATE_STOPPED;
}
@ -958,10 +1119,15 @@ static const struct net_device_ops xcan_netdev_ops = {
*/
static int __maybe_unused xcan_suspend(struct device *dev)
{
if (!device_may_wakeup(dev))
return pm_runtime_force_suspend(dev);
struct net_device *ndev = dev_get_drvdata(dev);
return 0;
if (netif_running(ndev)) {
netif_stop_queue(ndev);
netif_device_detach(ndev);
xcan_chip_stop(ndev);
}
return pm_runtime_force_suspend(dev);
}
/**
@ -973,11 +1139,27 @@ static int __maybe_unused xcan_suspend(struct device *dev)
*/
static int __maybe_unused xcan_resume(struct device *dev)
{
if (!device_may_wakeup(dev))
return pm_runtime_force_resume(dev);
struct net_device *ndev = dev_get_drvdata(dev);
int ret;
ret = pm_runtime_force_resume(dev);
if (ret) {
dev_err(dev, "pm_runtime_force_resume failed on resume\n");
return ret;
}
if (netif_running(ndev)) {
ret = xcan_chip_start(ndev);
if (ret) {
dev_err(dev, "xcan_chip_start failed on resume\n");
return ret;
}
netif_device_attach(ndev);
netif_start_queue(ndev);
}
return 0;
}
/**
@ -992,14 +1174,6 @@ static int __maybe_unused xcan_runtime_suspend(struct device *dev)
struct net_device *ndev = dev_get_drvdata(dev);
struct xcan_priv *priv = netdev_priv(ndev);
if (netif_running(ndev)) {
netif_stop_queue(ndev);
netif_device_detach(ndev);
}
priv->write_reg(priv, XCAN_MSR_OFFSET, XCAN_MSR_SLEEP_MASK);
priv->can.state = CAN_STATE_SLEEPING;
clk_disable_unprepare(priv->bus_clk);
clk_disable_unprepare(priv->can_clk);
@ -1018,7 +1192,6 @@ static int __maybe_unused xcan_runtime_resume(struct device *dev)
struct net_device *ndev = dev_get_drvdata(dev);
struct xcan_priv *priv = netdev_priv(ndev);
int ret;
u32 isr, status;
ret = clk_prepare_enable(priv->bus_clk);
if (ret) {
@ -1032,27 +1205,6 @@ static int __maybe_unused xcan_runtime_resume(struct device *dev)
return ret;
}
priv->write_reg(priv, XCAN_SRR_OFFSET, XCAN_SRR_RESET_MASK);
isr = priv->read_reg(priv, XCAN_ISR_OFFSET);
status = priv->read_reg(priv, XCAN_SR_OFFSET);
if (netif_running(ndev)) {
if (isr & XCAN_IXR_BSOFF_MASK) {
priv->can.state = CAN_STATE_BUS_OFF;
priv->write_reg(priv, XCAN_SRR_OFFSET,
XCAN_SRR_RESET_MASK);
} else if ((status & XCAN_SR_ESTAT_MASK) ==
XCAN_SR_ESTAT_MASK) {
priv->can.state = CAN_STATE_ERROR_PASSIVE;
} else if (status & XCAN_SR_ERRWRN_MASK) {
priv->can.state = CAN_STATE_ERROR_WARNING;
} else {
priv->can.state = CAN_STATE_ERROR_ACTIVE;
}
netif_device_attach(ndev);
netif_start_queue(ndev);
}
return 0;
}
@ -1061,6 +1213,18 @@ static const struct dev_pm_ops xcan_dev_pm_ops = {
SET_RUNTIME_PM_OPS(xcan_runtime_suspend, xcan_runtime_resume, NULL)
};
static const struct xcan_devtype_data xcan_zynq_data = {
.caps = XCAN_CAP_WATERMARK,
};
/* Match table for OF platform binding */
static const struct of_device_id xcan_of_match[] = {
{ .compatible = "xlnx,zynq-can-1.0", .data = &xcan_zynq_data },
{ .compatible = "xlnx,axi-can-1.00.a", },
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(of, xcan_of_match);
/**
* xcan_probe - Platform registration call
* @pdev: Handle to the platform device structure
@ -1075,8 +1239,10 @@ static int xcan_probe(struct platform_device *pdev)
struct resource *res; /* IO mem resources */
struct net_device *ndev;
struct xcan_priv *priv;
const struct of_device_id *of_id;
int caps = 0;
void __iomem *addr;
int ret, rx_max, tx_max;
int ret, rx_max, tx_max, tx_fifo_depth;
/* Get the virtual base address for the device */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@ -1086,7 +1252,8 @@ static int xcan_probe(struct platform_device *pdev)
goto err;
}
ret = of_property_read_u32(pdev->dev.of_node, "tx-fifo-depth", &tx_max);
ret = of_property_read_u32(pdev->dev.of_node, "tx-fifo-depth",
&tx_fifo_depth);
if (ret < 0)
goto err;
@ -1094,6 +1261,30 @@ static int xcan_probe(struct platform_device *pdev)
if (ret < 0)
goto err;
of_id = of_match_device(xcan_of_match, &pdev->dev);
if (of_id) {
const struct xcan_devtype_data *devtype_data = of_id->data;
if (devtype_data)
caps = devtype_data->caps;
}
/* There is no way to directly figure out how many frames have been
* sent when the TXOK interrupt is processed. If watermark programming
* is supported, we can have 2 frames in the FIFO and use TXFEMP
* to determine if 1 or 2 frames have been sent.
* Theoretically we should be able to use TXFWMEMP to determine up
* to 3 frames, but it seems that after putting a second frame in the
* FIFO, with watermark at 2 frames, it can happen that TXFWMEMP (less
* than 2 frames in FIFO) is set anyway with no TXOK (a frame was
* sent), which is not a sensible state - possibly TXFWMEMP is not
* completely synchronized with the rest of the bits?
*/
if (caps & XCAN_CAP_WATERMARK)
tx_max = min(tx_fifo_depth, 2);
else
tx_max = 1;
/* Create a CAN device instance */
ndev = alloc_candev(sizeof(struct xcan_priv), tx_max);
if (!ndev)
@ -1108,6 +1299,7 @@ static int xcan_probe(struct platform_device *pdev)
CAN_CTRLMODE_BERR_REPORTING;
priv->reg_base = addr;
priv->tx_max = tx_max;
spin_lock_init(&priv->tx_lock);
/* Get IRQ for the device */
ndev->irq = platform_get_irq(pdev, 0);
@ -1172,9 +1364,9 @@ static int xcan_probe(struct platform_device *pdev)
pm_runtime_put(&pdev->dev);
netdev_dbg(ndev, "reg_base=0x%p irq=%d clock=%d, tx fifo depth:%d\n",
netdev_dbg(ndev, "reg_base=0x%p irq=%d clock=%d, tx fifo depth: actual %d, using %d\n",
priv->reg_base, ndev->irq, priv->can.clock.freq,
priv->tx_max);
tx_fifo_depth, priv->tx_max);
return 0;
@ -1208,14 +1400,6 @@ static int xcan_remove(struct platform_device *pdev)
return 0;
}
/* Match table for OF platform binding */
static const struct of_device_id xcan_of_match[] = {
{ .compatible = "xlnx,zynq-can-1.0", },
{ .compatible = "xlnx,axi-can-1.00.a", },
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(of, xcan_of_match);
static struct platform_driver xcan_driver = {
.probe = xcan_probe,
.remove = xcan_remove,

21
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -343,6 +343,7 @@ static const struct irq_domain_ops mv88e6xxx_g1_irq_domain_ops = {
.xlate = irq_domain_xlate_twocell,
};
/* To be called with reg_lock held */
static void mv88e6xxx_g1_irq_free_common(struct mv88e6xxx_chip *chip)
{
int irq, virq;
@ -362,9 +363,15 @@ static void mv88e6xxx_g1_irq_free_common(struct mv88e6xxx_chip *chip)
static void mv88e6xxx_g1_irq_free(struct mv88e6xxx_chip *chip)
{
mv88e6xxx_g1_irq_free_common(chip);
/*
* free_irq must be called without reg_lock taken because the irq
* handler takes this lock, too.
*/
free_irq(chip->irq, chip);
mutex_lock(&chip->reg_lock);
mv88e6xxx_g1_irq_free_common(chip);
mutex_unlock(&chip->reg_lock);
}
static int mv88e6xxx_g1_irq_setup_common(struct mv88e6xxx_chip *chip)
@ -469,10 +476,12 @@ static int mv88e6xxx_irq_poll_setup(struct mv88e6xxx_chip *chip)
static void mv88e6xxx_irq_poll_free(struct mv88e6xxx_chip *chip)
{
mv88e6xxx_g1_irq_free_common(chip);
kthread_cancel_delayed_work_sync(&chip->irq_poll_work);
kthread_destroy_worker(chip->kworker);
mutex_lock(&chip->reg_lock);
mv88e6xxx_g1_irq_free_common(chip);
mutex_unlock(&chip->reg_lock);
}
int mv88e6xxx_wait(struct mv88e6xxx_chip *chip, int addr, int reg, u16 mask)
@ -4523,12 +4532,10 @@ out_g2_irq:
if (chip->info->g2_irqs > 0)
mv88e6xxx_g2_irq_free(chip);
out_g1_irq:
mutex_lock(&chip->reg_lock);
if (chip->irq > 0)
mv88e6xxx_g1_irq_free(chip);
else
mv88e6xxx_irq_poll_free(chip);
mutex_unlock(&chip->reg_lock);
out:
if (pdata)
dev_put(pdata->netdev);
@ -4556,12 +4563,10 @@ static void mv88e6xxx_remove(struct mdio_device *mdiodev)
if (chip->info->g2_irqs > 0)
mv88e6xxx_g2_irq_free(chip);
mutex_lock(&chip->reg_lock);
if (chip->irq > 0)
mv88e6xxx_g1_irq_free(chip);
else
mv88e6xxx_irq_poll_free(chip);
mutex_unlock(&chip->reg_lock);
}
static const struct of_device_id mv88e6xxx_of_match[] = {

2
drivers/net/ethernet/3com/Kconfig
View File

@ -32,7 +32,7 @@ config EL3
config 3C515
tristate "3c515 ISA \"Fast EtherLink\""
depends on ISA && ISA_DMA_API
depends on ISA && ISA_DMA_API && !PPC32
---help---
If you have a 3Com ISA EtherLink XL "Corkscrew" 3c515 Fast Ethernet
network card, say Y here.

4
drivers/net/ethernet/amd/Kconfig
View File

@ -44,7 +44,7 @@ config AMD8111_ETH
config LANCE
tristate "AMD LANCE and PCnet (AT1500 and NE2100) support"
depends on ISA && ISA_DMA_API && !ARM
depends on ISA && ISA_DMA_API && !ARM && !PPC32
---help---
If you have a network (Ethernet) card of this type, say Y here.
Some LinkSys cards are of this type.
@ -138,7 +138,7 @@ config PCMCIA_NMCLAN
config NI65
tristate "NI6510 support"
depends on ISA && ISA_DMA_API && !ARM
depends on ISA && ISA_DMA_API && !ARM && !PPC32
---help---
If you have a network (Ethernet) card of this type, say Y here.

1
drivers/net/ethernet/atheros/atl1c/atl1c_main.c
View File

@ -1686,6 +1686,7 @@ static struct sk_buff *atl1c_alloc_skb(struct atl1c_adapter *adapter)
skb = build_skb(page_address(page) + adapter->rx_page_offset,
adapter->rx_frag_size);
if (likely(skb)) {
skb_reserve(skb, NET_SKB_PAD);
adapter->rx_page_offset += adapter->rx_frag_size;
if (adapter->rx_page_offset >= PAGE_SIZE)
adapter->rx_page = NULL;

13
drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
View File

@ -3388,14 +3388,18 @@ static int bnx2x_set_rss_flags(struct bnx2x *bp, struct ethtool_rxnfc *info)
DP(BNX2X_MSG_ETHTOOL,
"rss re-configured, UDP 4-tupple %s\n",
udp_rss_requested ? "enabled" : "disabled");
return bnx2x_rss(bp, &bp->rss_conf_obj, false, true);
if (bp->state == BNX2X_STATE_OPEN)
return bnx2x_rss(bp, &bp->rss_conf_obj, false,
true);
} else if ((info->flow_type == UDP_V6_FLOW) &&
(bp->rss_conf_obj.udp_rss_v6 != udp_rss_requested)) {
bp->rss_conf_obj.udp_rss_v6 = udp_rss_requested;
DP(BNX2X_MSG_ETHTOOL,
"rss re-configured, UDP 4-tupple %s\n",
udp_rss_requested ? "enabled" : "disabled");
return bnx2x_rss(bp, &bp->rss_conf_obj, false, true);
if (bp->state == BNX2X_STATE_OPEN)
return bnx2x_rss(bp, &bp->rss_conf_obj, false,
true);
}
return 0;
@ -3509,7 +3513,10 @@ static int bnx2x_set_rxfh(struct net_device *dev, const u32 *indir,
bp->rss_conf_obj.ind_table[i] = indir[i] + bp->fp->cl_id;
}
return bnx2x_config_rss_eth(bp, false);
if (bp->state == BNX2X_STATE_OPEN)
return bnx2x_config_rss_eth(bp, false);
return 0;
}
/**

1
drivers/net/ethernet/cirrus/Kconfig
View File

@ -19,6 +19,7 @@ if NET_VENDOR_CIRRUS
config CS89x0
tristate "CS89x0 support"
depends on ISA || EISA || ARM
depends on !PPC32
---help---
Support for CS89x0 chipset based Ethernet cards. If you have a
network (Ethernet) card of this type, say Y and read the file

1
drivers/net/ethernet/huawei/hinic/hinic_tx.c
View File

@ -229,6 +229,7 @@ netdev_tx_t hinic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
txq->txq_stats.tx_busy++;
u64_stats_update_end(&txq->txq_stats.syncp);
err = NETDEV_TX_BUSY;
wqe_size = 0;
goto flush_skbs;
}

2
drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
View File

@ -2958,7 +2958,7 @@ int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
u32 srqn = qp_get_srqn(qpc) & 0xffffff;
int use_srq = (qp_get_srqn(qpc) >> 24) & 1;
struct res_srq *srq;
int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff;
int local_qpn = vhcr->in_modifier & 0xffffff;
err = adjust_qp_sched_queue(dev, slave, qpc, inbox);
if (err)

2
drivers/net/ethernet/mellanox/mlx5/core/alloc.c
View File

@ -123,7 +123,7 @@ int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size,
int i;
buf->size = size;
buf->npages = 1 << get_order(size);
buf->npages = DIV_ROUND_UP(size, PAGE_SIZE);
buf->page_shift = PAGE_SHIFT;
buf->frags = kcalloc(buf->npages, sizeof(struct mlx5_buf_list),
GFP_KERNEL);

7
drivers/net/ethernet/mellanox/mlx5/core/en_arfs.c
View File

@ -381,14 +381,14 @@ static void arfs_may_expire_flow(struct mlx5e_priv *priv)
HLIST_HEAD(del_list);
spin_lock_bh(&priv->fs.arfs.arfs_lock);
mlx5e_for_each_arfs_rule(arfs_rule, htmp, priv->fs.arfs.arfs_tables, i, j) {
if (quota++ > MLX5E_ARFS_EXPIRY_QUOTA)
break;
if (!work_pending(&arfs_rule->arfs_work) &&
rps_may_expire_flow(priv->netdev,
arfs_rule->rxq, arfs_rule->flow_id,
arfs_rule->filter_id)) {
hlist_del_init(&arfs_rule->hlist);
hlist_add_head(&arfs_rule->hlist, &del_list);
if (quota++ > MLX5E_ARFS_EXPIRY_QUOTA)
break;
}
}
spin_unlock_bh(&priv->fs.arfs.arfs_lock);
@ -711,6 +711,9 @@ int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
skb->protocol != htons(ETH_P_IPV6))
return -EPROTONOSUPPORT;
if (skb->encapsulation)
return -EPROTONOSUPPORT;
arfs_t = arfs_get_table(arfs, arfs_get_ip_proto(skb), skb->protocol);
if (!arfs_t)
return -EPROTONOSUPPORT;

17
drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
View File

@ -275,7 +275,8 @@ int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets)
}
static int mlx5e_dbcnl_validate_ets(struct net_device *netdev,
struct ieee_ets *ets)
struct ieee_ets *ets,
bool zero_sum_allowed)
{
bool have_ets_tc = false;
int bw_sum = 0;
@ -300,8 +301,9 @@ static int mlx5e_dbcnl_validate_ets(struct net_device *netdev,
}
if (have_ets_tc && bw_sum != 100) {
netdev_err(netdev,
"Failed to validate ETS: BW sum is illegal\n");
if (bw_sum || (!bw_sum && !zero_sum_allowed))
netdev_err(netdev,
"Failed to validate ETS: BW sum is illegal\n");
return -EINVAL;
}
return 0;
@ -316,7 +318,7 @@ static int mlx5e_dcbnl_ieee_setets(struct net_device *netdev,
if (!MLX5_CAP_GEN(priv->mdev, ets))
return -EOPNOTSUPP;
err = mlx5e_dbcnl_validate_ets(netdev, ets);
err = mlx5e_dbcnl_validate_ets(netdev, ets, false);
if (err)
return err;
@ -642,12 +644,9 @@ static u8 mlx5e_dcbnl_setall(struct net_device *netdev)
ets.prio_tc[i]);
}
err = mlx5e_dbcnl_validate_ets(netdev, &ets);
if (err) {
netdev_err(netdev,
"%s, Failed to validate ETS: %d\n", __func__, err);
err = mlx5e_dbcnl_validate_ets(netdev, &ets, true);
if (err)
goto out;
}
err = mlx5e_dcbnl_ieee_setets_core(priv, &ets);
if (err) {

4
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View File

@ -2004,6 +2004,10 @@ static bool actions_match_supported(struct mlx5e_priv *priv,
else
actions = flow->nic_attr->action;
if (flow->flags & MLX5E_TC_FLOW_EGRESS &&
!(actions & MLX5_FLOW_CONTEXT_ACTION_DECAP))
return false;
if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
return modify_header_match_supported(&parse_attr->spec, exts);

2
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -2216,6 +2216,6 @@ free_out:
u8 mlx5_eswitch_mode(struct mlx5_eswitch *esw)
{
return esw->mode;
return ESW_ALLOWED(esw) ? esw->mode : SRIOV_NONE;
}
EXPORT_SYMBOL_GPL(mlx5_eswitch_mode);

2
drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
View File

@ -1889,7 +1889,7 @@ mlx5_add_flow_rules(struct mlx5_flow_table *ft,
if (flow_act->action == MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO) {
if (!fwd_next_prio_supported(ft))
return ERR_PTR(-EOPNOTSUPP);
if (dest)
if (dest_num)
return ERR_PTR(-EINVAL);
mutex_lock(&root->chain_lock);
next_ft = find_next_chained_ft(prio);

12
drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
View File

@ -488,6 +488,7 @@ void mlx5_pps_event(struct mlx5_core_dev *mdev,
void mlx5_init_clock(struct mlx5_core_dev *mdev)
{
struct mlx5_clock *clock = &mdev->clock;
u64 overflow_cycles;
u64 ns;
u64 frac = 0;
u32 dev_freq;
@ -511,10 +512,17 @@ void mlx5_init_clock(struct mlx5_core_dev *mdev)
/* Calculate period in seconds to call the overflow watchdog - to make
* sure counter is checked at least once every wrap around.
* The period is calculated as the minimum between max HW cycles count
* (The clock source mask) and max amount of cycles that can be
* multiplied by clock multiplier where the result doesn't exceed
* 64bits.
*/
ns = cyclecounter_cyc2ns(&clock->cycles, clock->cycles.mask,
overflow_cycles = div64_u64(~0ULL >> 1, clock->cycles.mult);
overflow_cycles = min(overflow_cycles, clock->cycles.mask >> 1);
ns = cyclecounter_cyc2ns(&clock->cycles, overflow_cycles,
frac, &frac);
do_div(ns, NSEC_PER_SEC / 2 / HZ);
do_div(ns, NSEC_PER_SEC / HZ);
clock->overflow_period = ns;
mdev->clock_info_page = alloc_page(GFP_KERNEL);

34
drivers/net/ethernet/mellanox/mlx5/core/wq.c
View File

@ -113,35 +113,45 @@ err_db_free:
return err;
}
static void mlx5e_qp_set_frag_buf(struct mlx5_frag_buf *buf,
struct mlx5_wq_qp *qp)
static void mlx5_qp_set_frag_buf(struct mlx5_frag_buf *buf,
struct mlx5_wq_qp *qp)
{
struct mlx5_frag_buf_ctrl *sq_fbc;
struct mlx5_frag_buf *rqb, *sqb;
rqb = &qp->rq.fbc.frag_buf;
rqb = &qp->rq.fbc.frag_buf;
*rqb = *buf;
rqb->size = mlx5_wq_cyc_get_byte_size(&qp->rq);
rqb->npages = 1 << get_order(rqb->size);
rqb->npages = DIV_ROUND_UP(rqb->size, PAGE_SIZE);
sqb = &qp->sq.fbc.frag_buf;
*sqb = *buf;
sqb->size = mlx5_wq_cyc_get_byte_size(&qp->rq);
sqb->npages = 1 << get_order(sqb->size);
sq_fbc = &qp->sq.fbc;
sqb = &sq_fbc->frag_buf;
*sqb = *buf;
sqb->size = mlx5_wq_cyc_get_byte_size(&qp->sq);
sqb->npages = DIV_ROUND_UP(sqb->size, PAGE_SIZE);
sqb->frags += rqb->npages; /* first part is for the rq */
if (sq_fbc->strides_offset)
sqb->frags--;
}
int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
void *qpc, struct mlx5_wq_qp *wq,
struct mlx5_wq_ctrl *wq_ctrl)
{
u32 sq_strides_offset;
int err;
mlx5_fill_fbc(MLX5_GET(qpc, qpc, log_rq_stride) + 4,
MLX5_GET(qpc, qpc, log_rq_size),
&wq->rq.fbc);
mlx5_fill_fbc(ilog2(MLX5_SEND_WQE_BB),
MLX5_GET(qpc, qpc, log_sq_size),
&wq->sq.fbc);
sq_strides_offset =
((wq->rq.fbc.frag_sz_m1 + 1) % PAGE_SIZE) / MLX5_SEND_WQE_BB;
mlx5_fill_fbc_offset(ilog2(MLX5_SEND_WQE_BB),
MLX5_GET(qpc, qpc, log_sq_size),
sq_strides_offset,
&wq->sq.fbc);
err = mlx5_db_alloc_node(mdev, &wq_ctrl->db, param->db_numa_node);
if (err) {
@ -156,7 +166,7 @@ int mlx5_wq_qp_create(struct mlx5_core_dev *mdev, struct mlx5_wq_param *param,
goto err_db_free;
}
mlx5e_qp_set_frag_buf(&wq_ctrl->buf, wq);
mlx5_qp_set_frag_buf(&wq_ctrl->buf, wq);
wq->rq.db = &wq_ctrl->db.db[MLX5_RCV_DBR];
wq->sq.db = &wq_ctrl->db.db[MLX5_SND_DBR];

2
drivers/net/ethernet/netronome/nfp/flower/tunnel_conf.c
View File

@ -317,7 +317,7 @@ nfp_tun_write_neigh(struct net_device *netdev, struct nfp_app *app,
payload.dst_ipv4 = flow->daddr;
/* If entry has expired send dst IP with all other fields 0. */
if (!(neigh->nud_state & NUD_VALID)) {
if (!(neigh->nud_state & NUD_VALID) || neigh->dead) {
nfp_tun_del_route_from_cache(app, payload.dst_ipv4);
/* Trigger ARP to verify invalid neighbour state. */
neigh_event_send(neigh, NULL);

15
drivers/net/ethernet/qlogic/qed/qed_l2.c
View File

@ -665,7 +665,7 @@ qed_sp_update_mcast_bin(struct qed_hwfn *p_hwfn,
p_ramrod->common.update_approx_mcast_flg = 1;
for (i = 0; i < ETH_MULTICAST_MAC_BINS_IN_REGS; i++) {
u32 *p_bins = (u32 *)p_params->bins;
u32 *p_bins = p_params->bins;
p_ramrod->approx_mcast.bins[i] = cpu_to_le32(p_bins[i]);
}
@ -1476,8 +1476,8 @@ qed_sp_eth_filter_mcast(struct qed_hwfn *p_hwfn,
enum spq_mode comp_mode,
struct qed_spq_comp_cb *p_comp_data)
{
unsigned long bins[ETH_MULTICAST_MAC_BINS_IN_REGS];
struct vport_update_ramrod_data *p_ramrod = NULL;
u32 bins[ETH_MULTICAST_MAC_BINS_IN_REGS];
struct qed_spq_entry *p_ent = NULL;
struct qed_sp_init_data init_data;
u8 abs_vport_id = 0;
@ -1513,26 +1513,25 @@ qed_sp_eth_filter_mcast(struct qed_hwfn *p_hwfn,
/* explicitly clear out the entire vector */
memset(&p_ramrod->approx_mcast.bins, 0,
sizeof(p_ramrod->approx_mcast.bins));
memset(bins, 0, sizeof(unsigned long) *
ETH_MULTICAST_MAC_BINS_IN_REGS);
memset(bins, 0, sizeof(bins));
/* filter ADD op is explicit set op and it removes
* any existing filters for the vport
*/
if (p_filter_cmd->opcode == QED_FILTER_ADD) {
for (i = 0; i < p_filter_cmd->num_mc_addrs; i++) {
u32 bit;
u32 bit, nbits;
bit = qed_mcast_bin_from_mac(p_filter_cmd->mac[i]);
__set_bit(bit, bins);
nbits = sizeof(u32) * BITS_PER_BYTE;
bins[bit / nbits] |= 1 << (bit % nbits);
}
/* Convert to correct endianity */
for (i = 0; i < ETH_MULTICAST_MAC_BINS_IN_REGS; i++) {
struct vport_update_ramrod_mcast *p_ramrod_bins;
u32 *p_bins = (u32 *)bins;
p_ramrod_bins = &p_ramrod->approx_mcast;
p_ramrod_bins->bins[i] = cpu_to_le32(p_bins[i]);
p_ramrod_bins->bins[i] = cpu_to_le32(bins[i]);
}
}

2
drivers/net/ethernet/qlogic/qed/qed_l2.h
View File

@ -215,7 +215,7 @@ struct qed_sp_vport_update_params {
u8 anti_spoofing_en;
u8 update_accept_any_vlan_flg;
u8 accept_any_vlan;
unsigned long bins[8];
u32 bins[8];
struct qed_rss_params *rss_params;
struct qed_filter_accept_flags accept_flags;
struct qed_sge_tpa_params *sge_tpa_params;

13
drivers/net/ethernet/qlogic/qed/qed_mcp.c
View File

@ -1211,6 +1211,7 @@ static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn,
break;
default:
p_link->speed = 0;
p_link->link_up = 0;
}
if (p_link->link_up && p_link->speed)
@ -1308,9 +1309,15 @@ int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up)
phy_cfg.pause |= (params->pause.forced_tx) ? ETH_PAUSE_TX : 0;
phy_cfg.adv_speed = params->speed.advertised_speeds;
phy_cfg.loopback_mode = params->loopback_mode;
if (p_hwfn->mcp_info->capabilities & FW_MB_PARAM_FEATURE_SUPPORT_EEE) {
if (params->eee.enable)
phy_cfg.eee_cfg |= EEE_CFG_EEE_ENABLED;
/* There are MFWs that share this capability regardless of whether
* this is feasible or not. And given that at the very least adv_caps
* would be set internally by qed, we want to make sure LFA would
* still work.
*/
if ((p_hwfn->mcp_info->capabilities &
FW_MB_PARAM_FEATURE_SUPPORT_EEE) && params->eee.enable) {
phy_cfg.eee_cfg |= EEE_CFG_EEE_ENABLED;
if (params->eee.tx_lpi_enable)
phy_cfg.eee_cfg |= EEE_CFG_TX_LPI;
if (params->eee.adv_caps & QED_EEE_1G_ADV)

2
drivers/net/ethernet/qlogic/qed/qed_sriov.c
View File

@ -2831,7 +2831,7 @@ qed_iov_vp_update_mcast_bin_param(struct qed_hwfn *p_hwfn,
p_data->update_approx_mcast_flg = 1;
memcpy(p_data->bins, p_mcast_tlv->bins,
sizeof(unsigned long) * ETH_MULTICAST_MAC_BINS_IN_REGS);
sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
*tlvs_mask |= 1 << QED_IOV_VP_UPDATE_MCAST;
}

4
drivers/net/ethernet/qlogic/qed/qed_vf.c
View File

@ -1126,7 +1126,7 @@ int qed_vf_pf_vport_update(struct qed_hwfn *p_hwfn,
resp_size += sizeof(struct pfvf_def_resp_tlv);
memcpy(p_mcast_tlv->bins, p_params->bins,
sizeof(unsigned long) * ETH_MULTICAST_MAC_BINS_IN_REGS);
sizeof(u32) * ETH_MULTICAST_MAC_BINS_IN_REGS);
}
update_rx = p_params->accept_flags.update_rx_mode_config;
@ -1272,7 +1272,7 @@ void qed_vf_pf_filter_mcast(struct qed_hwfn *p_hwfn,
u32 bit;
bit = qed_mcast_bin_from_mac(p_filter_cmd->mac[i]);
__set_bit(bit, sp_params.bins);
sp_params.bins[bit / 32] |= 1 << (bit % 32);
}
}

7
drivers/net/ethernet/qlogic/qed/qed_vf.h
View File

@ -392,7 +392,12 @@ struct vfpf_vport_update_mcast_bin_tlv {
struct channel_tlv tl;
u8 padding[4];
u64 bins[8];
/* There are only 256 approx bins, and in HSI they're divided into
* 32-bit values. As old VFs used to set-bit to the values on its side,
* the upper half of the array is never expected to contain any data.
*/
u64 bins[4];
u64 obsolete_bins[4];
};
struct vfpf_vport_update_accept_param_tlv {

3
drivers/net/ethernet/realtek/r8169.c
View File

@ -7396,8 +7396,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
return rc;
}
/* override BIOS settings, use userspace tools to enable WOL */
__rtl8169_set_wol(tp, 0);
tp->saved_wolopts = __rtl8169_get_wol(tp);
mutex_init(&tp->wk.mutex);
u64_stats_init(&tp->rx_stats.syncp);

1
drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
View File

@ -218,6 +218,7 @@ issue:
ret = of_mdiobus_register(bus, np1);
if (ret) {
mdiobus_free(bus);
lp->mii_bus = NULL;
return ret;
}
return 0;

2
drivers/net/phy/phy.c
View File

@ -519,7 +519,7 @@ static int phy_start_aneg_priv(struct phy_device *phydev, bool sync)
* negotiation may already be done and aneg interrupt may not be
* generated.
*/
if (phy_interrupt_is_valid(phydev) && (phydev->state == PHY_AN)) {
if (phydev->irq != PHY_POLL && phydev->state == PHY_AN) {
err = phy_aneg_done(phydev);
if (err > 0) {
trigger = true;

2
drivers/net/usb/qmi_wwan.c
View File

@ -1246,7 +1246,7 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x413c, 0x81b3, 8)}, /* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
{QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */
{QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */
{QMI_FIXED_INTF(0x413c, 0x81d7, 1)}, /* Dell Wireless 5821e */
{QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */
{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */
{QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */

63
drivers/nvme/host/core.c
View File

@ -100,6 +100,22 @@ static struct class *nvme_subsys_class;
static void nvme_ns_remove(struct nvme_ns *ns);
static int nvme_revalidate_disk(struct gendisk *disk);
static void nvme_put_subsystem(struct nvme_subsystem *subsys);
static void nvme_remove_invalid_namespaces(struct nvme_ctrl *ctrl,
unsigned nsid);
static void nvme_set_queue_dying(struct nvme_ns *ns)
{
/*
* Revalidating a dead namespace sets capacity to 0. This will end
* buffered writers dirtying pages that can't be synced.
*/
if (!ns->disk || test_and_set_bit(NVME_NS_DEAD, &ns->flags))
return;
revalidate_disk(ns->disk);
blk_set_queue_dying(ns->queue);
/* Forcibly unquiesce queues to avoid blocking dispatch */
blk_mq_unquiesce_queue(ns->queue);
}
static void nvme_queue_scan(struct nvme_ctrl *ctrl)
{
@ -1044,14 +1060,17 @@ EXPORT_SYMBOL_GPL(nvme_set_queue_count);
static void nvme_enable_aen(struct nvme_ctrl *ctrl)
{
u32 result;
u32 result, supported_aens = ctrl->oaes & NVME_AEN_SUPPORTED;
int status;
status = nvme_set_features(ctrl, NVME_FEAT_ASYNC_EVENT,
ctrl->oaes & NVME_AEN_SUPPORTED, NULL, 0, &result);
if (!supported_aens)
return;
status = nvme_set_features(ctrl, NVME_FEAT_ASYNC_EVENT, supported_aens,
NULL, 0, &result);
if (status)
dev_warn(ctrl->device, "Failed to configure AEN (cfg %x)\n",
ctrl->oaes & NVME_AEN_SUPPORTED);
supported_aens);
}
static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
@ -1151,19 +1170,15 @@ static u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
static void nvme_update_formats(struct nvme_ctrl *ctrl)
{
struct nvme_ns *ns, *next;
LIST_HEAD(rm_list);
struct nvme_ns *ns;
down_write(&ctrl->namespaces_rwsem);
list_for_each_entry(ns, &ctrl->namespaces, list) {
if (ns->disk && nvme_revalidate_disk(ns->disk)) {
list_move_tail(&ns->list, &rm_list);
}
}
up_write(&ctrl->namespaces_rwsem);
down_read(&ctrl->namespaces_rwsem);
list_for_each_entry(ns, &ctrl->namespaces, list)
if (ns->disk && nvme_revalidate_disk(ns->disk))
nvme_set_queue_dying(ns);
up_read(&ctrl->namespaces_rwsem);
list_for_each_entry_safe(ns, next, &rm_list, list)
nvme_ns_remove(ns);
nvme_remove_invalid_namespaces(ctrl, NVME_NSID_ALL);
}
static void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects)
@ -1218,7 +1233,7 @@ static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
effects = nvme_passthru_start(ctrl, ns, cmd.opcode);
status = nvme_submit_user_cmd(ns ? ns->queue : ctrl->admin_q, &c,
(void __user *)(uintptr_t)cmd.addr, cmd.data_len,
(void __user *)(uintptr_t)cmd.metadata, cmd.metadata,
(void __user *)(uintptr_t)cmd.metadata, cmd.metadata_len,
0, &cmd.result, timeout);
nvme_passthru_end(ctrl, effects);
@ -3138,7 +3153,7 @@ static void nvme_remove_invalid_namespaces(struct nvme_ctrl *ctrl,
down_write(&ctrl->namespaces_rwsem);
list_for_each_entry_safe(ns, next, &ctrl->namespaces, list) {
if (ns->head->ns_id > nsid)
if (ns->head->ns_id > nsid || test_bit(NVME_NS_DEAD, &ns->flags))
list_move_tail(&ns->list, &rm_list);
}
up_write(&ctrl->namespaces_rwsem);
@ -3542,19 +3557,9 @@ void nvme_kill_queues(struct nvme_ctrl *ctrl)
if (ctrl->admin_q)
blk_mq_unquiesce_queue(ctrl->admin_q);
list_for_each_entry(ns, &ctrl->namespaces, list) {
/*
* Revalidating a dead namespace sets capacity to 0. This will
* end buffered writers dirtying pages that can't be synced.
*/
if (!ns->disk || test_and_set_bit(NVME_NS_DEAD, &ns->flags))
continue;
revalidate_disk(ns->disk);
blk_set_queue_dying(ns->queue);
list_for_each_entry(ns, &ctrl->namespaces, list)
nvme_set_queue_dying(ns);
/* Forcibly unquiesce queues to avoid blocking dispatch */
blk_mq_unquiesce_queue(ns->queue);
}
up_read(&ctrl->namespaces_rwsem);
}
EXPORT_SYMBOL_GPL(nvme_kill_queues);

12
drivers/nvme/host/pci.c
View File

@ -2556,11 +2556,6 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
quirks |= check_vendor_combination_bug(pdev);
result = nvme_init_ctrl(&dev->ctrl, &pdev->dev, &nvme_pci_ctrl_ops,
quirks);
if (result)
goto release_pools;
/*
* Double check that our mempool alloc size will cover the biggest
* command we support.
@ -2578,6 +2573,11 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto release_pools;
}
result = nvme_init_ctrl(&dev->ctrl, &pdev->dev, &nvme_pci_ctrl_ops,
quirks);
if (result)
goto release_mempool;
dev_info(dev->ctrl.device, "pci function %s\n", dev_name(&pdev->dev));
nvme_get_ctrl(&dev->ctrl);
@ -2585,6 +2585,8 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return 0;
release_mempool:
mempool_destroy(dev->iod_mempool);
release_pools:
nvme_release_prp_pools(dev);
unmap:

5
drivers/scsi/cxlflash/ocxl_hw.c
View File

@ -134,15 +134,14 @@ static struct file *ocxlflash_getfile(struct device *dev, const char *name,
rc = PTR_ERR(file);
dev_err(dev, "%s: alloc_file failed rc=%d\n",
__func__, rc);
goto err5;
path_put(&path);
goto err3;
}
file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
file->private_data = priv;
out:
return file;
err5:
path_put(&path);
err4:
iput(inode);
err3:

21
drivers/soc/imx/gpc.c
View File

@ -27,9 +27,16 @@
#define GPC_PGC_SW2ISO_SHIFT 0x8
#define GPC_PGC_SW_SHIFT 0x0
#define GPC_PGC_PCI_PDN 0x200
#define GPC_PGC_PCI_SR 0x20c
#define GPC_PGC_GPU_PDN 0x260
#define GPC_PGC_GPU_PUPSCR 0x264
#define GPC_PGC_GPU_PDNSCR 0x268
#define GPC_PGC_GPU_SR 0x26c
#define GPC_PGC_DISP_PDN 0x240
#define GPC_PGC_DISP_SR 0x24c
#define GPU_VPU_PUP_REQ BIT(1)
#define GPU_VPU_PDN_REQ BIT(0)
@ -318,10 +325,24 @@ static const struct of_device_id imx_gpc_dt_ids[] = {
{ }
};
static const struct regmap_range yes_ranges[] = {
regmap_reg_range(GPC_CNTR, GPC_CNTR),
regmap_reg_range(GPC_PGC_PCI_PDN, GPC_PGC_PCI_SR),
regmap_reg_range(GPC_PGC_GPU_PDN, GPC_PGC_GPU_SR),
regmap_reg_range(GPC_PGC_DISP_PDN, GPC_PGC_DISP_SR),
};
static const struct regmap_access_table access_table = {
.yes_ranges = yes_ranges,
.n_yes_ranges = ARRAY_SIZE(yes_ranges),
};
static const struct regmap_config imx_gpc_regmap_config = {
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
.rd_table = &access_table,
.wr_table = &access_table,
.max_register = 0x2ac,
};

3
drivers/staging/media/omap4iss/iss_video.c
View File

@ -11,7 +11,6 @@
* (at your option) any later version.
*/
#include <asm/cacheflush.h>
#include <linux/clk.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
@ -24,6 +23,8 @@
#include <media/v4l2-ioctl.h>
#include <media/v4l2-mc.h>
#include <asm/cacheflush.h>
#include "iss_video.h"
#include "iss.h"

10
drivers/vfio/vfio_iommu_spapr_tce.c
View File

@ -457,17 +457,17 @@ static void tce_iommu_unuse_page(struct tce_container *container,
}
static int tce_iommu_prereg_ua_to_hpa(struct tce_container *container,
unsigned long tce, unsigned long size,
unsigned long tce, unsigned long shift,
unsigned long *phpa, struct mm_iommu_table_group_mem_t **pmem)
{
long ret = 0;
struct mm_iommu_table_group_mem_t *mem;
mem = mm_iommu_lookup(container->mm, tce, size);
mem = mm_iommu_lookup(container->mm, tce, 1ULL << shift);
if (!mem)
return -EINVAL;
ret = mm_iommu_ua_to_hpa(mem, tce, phpa);
ret = mm_iommu_ua_to_hpa(mem, tce, shift, phpa);
if (ret)
return -EINVAL;
@ -487,7 +487,7 @@ static void tce_iommu_unuse_page_v2(struct tce_container *container,
if (!pua)
return;
ret = tce_iommu_prereg_ua_to_hpa(container, *pua, IOMMU_PAGE_SIZE(tbl),
ret = tce_iommu_prereg_ua_to_hpa(container, *pua, tbl->it_page_shift,
&hpa, &mem);
if (ret)
pr_debug("%s: tce %lx at #%lx was not cached, ret=%d\n",
@ -611,7 +611,7 @@ static long tce_iommu_build_v2(struct tce_container *container,
entry + i);
ret = tce_iommu_prereg_ua_to_hpa(container,
tce, IOMMU_PAGE_SIZE(tbl), &hpa, &mem);
tce, tbl->it_page_shift, &hpa, &mem);
if (ret)
break;

5
fs/aio.c
View File

@ -1896,6 +1896,11 @@ SYSCALL_DEFINE5(io_getevents, aio_context_t, ctx_id,
return ret;
}
struct __aio_sigset {
const sigset_t __user *sigmask;
size_t sigsetsize;
};
SYSCALL_DEFINE6(io_pgetevents,
aio_context_t, ctx_id,
long, min_nr,

7
fs/btrfs/extent_io.c
View File

@ -4238,8 +4238,9 @@ int try_release_extent_mapping(struct page *page, gfp_t mask)
struct extent_map *em;
u64 start = page_offset(page);
u64 end = start + PAGE_SIZE - 1;
struct extent_io_tree *tree = &BTRFS_I(page->mapping->host)->io_tree;
struct extent_map_tree *map = &BTRFS_I(page->mapping->host)->extent_tree;
struct btrfs_inode *btrfs_inode = BTRFS_I(page->mapping->host);
struct extent_io_tree *tree = &btrfs_inode->io_tree;
struct extent_map_tree *map = &btrfs_inode->extent_tree;
if (gfpflags_allow_blocking(mask) &&
page->mapping->host->i_size > SZ_16M) {
@ -4262,6 +4263,8 @@ int try_release_extent_mapping(struct page *page, gfp_t mask)
extent_map_end(em) - 1,
EXTENT_LOCKED | EXTENT_WRITEBACK,
0, NULL)) {
set_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
&btrfs_inode->runtime_flags);
remove_extent_mapping(map, em);
/* once for the rb tree */
free_extent_map(em);

6
fs/exec.c
View File

@ -290,7 +290,7 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
struct vm_area_struct *vma = NULL;
struct mm_struct *mm = bprm->mm;
bprm->vma = vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
bprm->vma = vma = vm_area_alloc(mm);
if (!vma)
return -ENOMEM;
@ -298,7 +298,6 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
err = -EINTR;
goto err_free;
}
vma->vm_mm = mm;
/*
* Place the stack at the largest stack address the architecture
@ -311,7 +310,6 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
vma->vm_start = vma->vm_end - PAGE_SIZE;
vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
INIT_LIST_HEAD(&vma->anon_vma_chain);
err = insert_vm_struct(mm, vma);
if (err)
@ -326,7 +324,7 @@ err:
up_write(&mm->mmap_sem);
err_free:
bprm->vma = NULL;
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
return err;
}

20
fs/fat/inode.c
View File

@ -707,13 +707,21 @@ static void fat_set_state(struct super_block *sb,
brelse(bh);
}
static void fat_reset_iocharset(struct fat_mount_options *opts)
{
if (opts->iocharset != fat_default_iocharset) {
/* Note: opts->iocharset can be NULL here */
kfree(opts->iocharset);
opts->iocharset = fat_default_iocharset;
}
}
static void delayed_free(struct rcu_head *p)
{
struct msdos_sb_info *sbi = container_of(p, struct msdos_sb_info, rcu);
unload_nls(sbi->nls_disk);
unload_nls(sbi->nls_io);
if (sbi->options.iocharset != fat_default_iocharset)
kfree(sbi->options.iocharset);
fat_reset_iocharset(&sbi->options);
kfree(sbi);
}
@ -1132,7 +1140,7 @@ static int parse_options(struct super_block *sb, char *options, int is_vfat,
opts->fs_fmask = opts->fs_dmask = current_umask();
opts->allow_utime = -1;
opts->codepage = fat_default_codepage;
opts->iocharset = fat_default_iocharset;
fat_reset_iocharset(opts);
if (is_vfat) {
opts->shortname = VFAT_SFN_DISPLAY_WINNT|VFAT_SFN_CREATE_WIN95;
opts->rodir = 0;
@ -1289,8 +1297,7 @@ static int parse_options(struct super_block *sb, char *options, int is_vfat,
/* vfat specific */
case Opt_charset:
if (opts->iocharset != fat_default_iocharset)
kfree(opts->iocharset);
fat_reset_iocharset(opts);
iocharset = match_strdup(&args[0]);
if (!iocharset)
return -ENOMEM;
@ -1881,8 +1888,7 @@ out_fail:
iput(fat_inode);
unload_nls(sbi->nls_io);
unload_nls(sbi->nls_disk);
if (sbi->options.iocharset != fat_default_iocharset)
kfree(sbi->options.iocharset);
fat_reset_iocharset(&sbi->options);
sb->s_fs_info = NULL;
kfree(sbi);
return error;

1
fs/internal.h
View File

@ -127,7 +127,6 @@ int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group,
extern int open_check_o_direct(struct file *f);
extern int vfs_open(const struct path *, struct file *, const struct cred *);
extern struct file *filp_clone_open(struct file *);
/*
* inode.c

6
include/linux/bpfilter.h
View File

@ -5,10 +5,10 @@
#include <uapi/linux/bpfilter.h>
struct sock;
int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char *optval,
int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char __user *optval,
unsigned int optlen);
int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char *optval,
int *optlen);
int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval,
int __user *optlen);
extern int (*bpfilter_process_sockopt)(struct sock *sk, int optname,
char __user *optval,
unsigned int optlen, bool is_set);

1
include/linux/fs.h
View File

@ -2420,6 +2420,7 @@ extern struct file *filp_open(const char *, int, umode_t);
extern struct file *file_open_root(struct dentry *, struct vfsmount *,
const char *, int, umode_t);
extern struct file * dentry_open(const struct path *, int, const struct cred *);
extern struct file *filp_clone_open(struct file *);
extern int filp_close(struct file *, fl_owner_t id);
extern struct filename *getname_flags(const char __user *, int, int *);

18
include/linux/mlx5/driver.h
View File

@ -363,6 +363,7 @@ struct mlx5_frag_buf_ctrl {
struct mlx5_frag_buf frag_buf;
u32 sz_m1;
u32 frag_sz_m1;
u32 strides_offset;
u8 log_sz;
u8 log_stride;
u8 log_frag_strides;
@ -991,14 +992,22 @@ static inline u32 mlx5_base_mkey(const u32 key)
return key & 0xffffff00u;
}
static inline void mlx5_fill_fbc(u8 log_stride, u8 log_sz,
struct mlx5_frag_buf_ctrl *fbc)
static inline void mlx5_fill_fbc_offset(u8 log_stride, u8 log_sz,
u32 strides_offset,
struct mlx5_frag_buf_ctrl *fbc)
{
fbc->log_stride = log_stride;
fbc->log_sz = log_sz;
fbc->sz_m1 = (1 << fbc->log_sz) - 1;
fbc->log_frag_strides = PAGE_SHIFT - fbc->log_stride;
fbc->frag_sz_m1 = (1 << fbc->log_frag_strides) - 1;
fbc->strides_offset = strides_offset;
}
static inline void mlx5_fill_fbc(u8 log_stride, u8 log_sz,
struct mlx5_frag_buf_ctrl *fbc)
{
mlx5_fill_fbc_offset(log_stride, log_sz, 0, fbc);
}
static inline void mlx5_core_init_cq_frag_buf(struct mlx5_frag_buf_ctrl *fbc,
@ -1012,7 +1021,10 @@ static inline void mlx5_core_init_cq_frag_buf(struct mlx5_frag_buf_ctrl *fbc,
static inline void *mlx5_frag_buf_get_wqe(struct mlx5_frag_buf_ctrl *fbc,
u32 ix)
{
unsigned int frag = (ix >> fbc->log_frag_strides);
unsigned int frag;
ix += fbc->strides_offset;
frag = ix >> fbc->log_frag_strides;
return fbc->frag_buf.frags[frag].buf +
((fbc->frag_sz_m1 & ix) << fbc->log_stride);

4
include/linux/mm.h
View File

@ -155,7 +155,9 @@ extern int overcommit_kbytes_handler(struct ctl_table *, int, void __user *,
* mmap() functions).
*/
extern struct kmem_cache *vm_area_cachep;
struct vm_area_struct *vm_area_alloc(struct mm_struct *);
struct vm_area_struct *vm_area_dup(struct vm_area_struct *);
void vm_area_free(struct vm_area_struct *);
#ifndef CONFIG_MMU
extern struct rb_root nommu_region_tree;

2
include/linux/sched/task.h
View File

@ -75,7 +75,7 @@ extern long _do_fork(unsigned long, unsigned long, unsigned long, int __user *,
extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, int __user *);
struct task_struct *fork_idle(int);
extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
extern long kernel_wait4(pid_t, int *, int, struct rusage *);
extern long kernel_wait4(pid_t, int __user *, int, struct rusage *);
extern void free_task(struct task_struct *tsk);

1
include/linux/syscalls.h
View File

@ -11,6 +11,7 @@
#ifndef _LINUX_SYSCALLS_H
#define _LINUX_SYSCALLS_H
struct __aio_sigset;
struct epoll_event;
struct iattr;
struct inode;

12
include/net/cfg80211.h
View File

@ -5937,10 +5937,11 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
/**
* cfg80211_rx_control_port - notification about a received control port frame
* @dev: The device the frame matched to
* @buf: control port frame
* @len: length of the frame data
* @addr: The peer from which the frame was received
* @proto: frame protocol, typically PAE or Pre-authentication
* @skb: The skbuf with the control port frame. It is assumed that the skbuf
* is 802.3 formatted (with 802.3 header). The skb can be non-linear.
* This function does not take ownership of the skb, so the caller is
* responsible for any cleanup. The caller must also ensure that
* skb->protocol is set appropriately.
* @unencrypted: Whether the frame was received unencrypted
*
* This function is used to inform userspace about a received control port
@ -5953,8 +5954,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
* Return: %true if the frame was passed to userspace
*/
bool cfg80211_rx_control_port(struct net_device *dev,
const u8 *buf, size_t len,
const u8 *addr, u16 proto, bool unencrypted);
struct sk_buff *skb, bool unencrypted);
/**
* cfg80211_cqm_rssi_notify - connection quality monitoring rssi event

5
include/net/ip6_fib.h
View File

@ -281,6 +281,11 @@ static inline void fib6_info_hold(struct fib6_info *f6i)
atomic_inc(&f6i->fib6_ref);
}
static inline bool fib6_info_hold_safe(struct fib6_info *f6i)
{
return atomic_inc_not_zero(&f6i->fib6_ref);
}
static inline void fib6_info_release(struct fib6_info *f6i)
{
if (f6i && atomic_dec_and_test(&f6i->fib6_ref))

5
include/net/netfilter/nf_tables.h
View File

@ -150,6 +150,7 @@ static inline void nft_data_debug(const struct nft_data *data)
* @portid: netlink portID of the original message
* @seq: netlink sequence number
* @family: protocol family
* @level: depth of the chains
* @report: notify via unicast netlink message
*/
struct nft_ctx {
@ -160,6 +161,7 @@ struct nft_ctx {
u32 portid;
u32 seq;
u8 family;
u8 level;
bool report;
};
@ -865,7 +867,6 @@ enum nft_chain_flags {
* @table: table that this chain belongs to
* @handle: chain handle
* @use: number of jump references to this chain
* @level: length of longest path to this chain
* @flags: bitmask of enum nft_chain_flags
* @name: name of the chain
*/
@ -878,7 +879,6 @@ struct nft_chain {
struct nft_table *table;
u64 handle;
u32 use;
u16 level;
u8 flags:6,
genmask:2;
char *name;
@ -1124,7 +1124,6 @@ struct nft_flowtable {
u32 genmask:2,
use:30;
u64 handle;
char *dev_name[NFT_FLOWTABLE_DEVICE_MAX];
/* runtime data below here */
struct nf_hook_ops *ops ____cacheline_aligned;
struct nf_flowtable data;

7
include/net/tcp.h
View File

@ -342,6 +342,7 @@ ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos,
struct pipe_inode_info *pipe, size_t len,
unsigned int flags);
void tcp_enter_quickack_mode(struct sock *sk, unsigned int max_quickacks);
static inline void tcp_dec_quickack_mode(struct sock *sk,
const unsigned int pkts)
{
@ -540,6 +541,7 @@ void tcp_send_fin(struct sock *sk);
void tcp_send_active_reset(struct sock *sk, gfp_t priority);
int tcp_send_synack(struct sock *);
void tcp_push_one(struct sock *, unsigned int mss_now);
void __tcp_send_ack(struct sock *sk, u32 rcv_nxt);
void tcp_send_ack(struct sock *sk);
void tcp_send_delayed_ack(struct sock *sk);
void tcp_send_loss_probe(struct sock *sk);
@ -839,6 +841,11 @@ static inline void bpf_compute_data_end_sk_skb(struct sk_buff *skb)
* as TCP moves IP6CB into a different location in skb->cb[]
*/
static inline int tcp_v6_iif(const struct sk_buff *skb)
{
return TCP_SKB_CB(skb)->header.h6.iif;
}
static inline int tcp_v6_iif_l3_slave(const struct sk_buff *skb)
{
bool l3_slave = ipv6_l3mdev_skb(TCP_SKB_CB(skb)->header.h6.flags);

6
include/uapi/linux/aio_abi.h
View File

@ -29,7 +29,6 @@
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/signal.h>
#include <asm/byteorder.h>
typedef __kernel_ulong_t aio_context_t;
@ -110,10 +109,5 @@ struct iocb {
#undef IFBIG
#undef IFLITTLE
struct __aio_sigset {
const sigset_t __user *sigmask;
size_t sigsetsize;
};
#endif /* __LINUX__AIO_ABI_H */

2
include/uapi/linux/btf.h
View File

@ -76,7 +76,7 @@ struct btf_type {
*/
#define BTF_INT_ENCODING(VAL) (((VAL) & 0x0f000000) >> 24)
#define BTF_INT_OFFSET(VAL) (((VAL & 0x00ff0000)) >> 16)
#define BTF_INT_BITS(VAL) ((VAL) & 0x0000ffff)
#define BTF_INT_BITS(VAL) ((VAL) & 0x000000ff)
/* Attributes stored in the BTF_INT_ENCODING */
#define BTF_INT_SIGNED (1 << 0)

16
kernel/bpf/btf.c
View File

@ -450,7 +450,7 @@ static const struct btf_type *btf_type_by_id(const struct btf *btf, u32 type_id)
*/
static bool btf_type_int_is_regular(const struct btf_type *t)
{
u16 nr_bits, nr_bytes;
u8 nr_bits, nr_bytes;
u32 int_data;
int_data = btf_type_int(t);
@ -993,12 +993,16 @@ static void btf_int_bits_seq_show(const struct btf *btf,
{
u16 left_shift_bits, right_shift_bits;
u32 int_data = btf_type_int(t);
u16 nr_bits = BTF_INT_BITS(int_data);
u16 total_bits_offset;
u16 nr_copy_bytes;
u16 nr_copy_bits;
u8 nr_bits = BTF_INT_BITS(int_data);
u8 total_bits_offset;
u8 nr_copy_bytes;
u8 nr_copy_bits;
u64 print_num;
/*
* bits_offset is at most 7.
* BTF_INT_OFFSET() cannot exceed 64 bits.
*/
total_bits_offset = bits_offset + BTF_INT_OFFSET(int_data);
data += BITS_ROUNDDOWN_BYTES(total_bits_offset);
bits_offset = BITS_PER_BYTE_MASKED(total_bits_offset);
@ -1028,7 +1032,7 @@ static void btf_int_seq_show(const struct btf *btf, const struct btf_type *t,
u32 int_data = btf_type_int(t);
u8 encoding = BTF_INT_ENCODING(int_data);
bool sign = encoding & BTF_INT_SIGNED;
u32 nr_bits = BTF_INT_BITS(int_data);
u8 nr_bits = BTF_INT_BITS(int_data);
if (bits_offset || BTF_INT_OFFSET(int_data) ||
BITS_PER_BYTE_MASKED(nr_bits)) {

35
kernel/fork.c
View File

@ -303,11 +303,38 @@ struct kmem_cache *files_cachep;
struct kmem_cache *fs_cachep;
/* SLAB cache for vm_area_struct structures */
struct kmem_cache *vm_area_cachep;
static struct kmem_cache *vm_area_cachep;
/* SLAB cache for mm_struct structures (tsk->mm) */
static struct kmem_cache *mm_cachep;
struct vm_area_struct *vm_area_alloc(struct mm_struct *mm)
{
struct vm_area_struct *vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
if (vma) {
vma->vm_mm = mm;
INIT_LIST_HEAD(&vma->anon_vma_chain);
}
return vma;
}
struct vm_area_struct *vm_area_dup(struct vm_area_struct *orig)
{
struct vm_area_struct *new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
if (new) {
*new = *orig;
INIT_LIST_HEAD(&new->anon_vma_chain);
}
return new;
}
void vm_area_free(struct vm_area_struct *vma)
{
kmem_cache_free(vm_area_cachep, vma);
}
static void account_kernel_stack(struct task_struct *tsk, int account)
{
void *stack = task_stack_page(tsk);
@ -455,11 +482,9 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
goto fail_nomem;
charge = len;
}
tmp = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
tmp = vm_area_dup(mpnt);
if (!tmp)
goto fail_nomem;
*tmp = *mpnt;
INIT_LIST_HEAD(&tmp->anon_vma_chain);
retval = vma_dup_policy(mpnt, tmp);
if (retval)
goto fail_nomem_policy;
@ -539,7 +564,7 @@ fail_uprobe_end:
fail_nomem_anon_vma_fork:
mpol_put(vma_policy(tmp));
fail_nomem_policy:
kmem_cache_free(vm_area_cachep, tmp);
vm_area_free(tmp);
fail_nomem:
retval = -ENOMEM;
vm_unacct_memory(charge);

11
kernel/sched/deadline.c
View File

@ -2290,8 +2290,17 @@ static void switched_from_dl(struct rq *rq, struct task_struct *p)
if (task_on_rq_queued(p) && p->dl.dl_runtime)
task_non_contending(p);
if (!task_on_rq_queued(p))
if (!task_on_rq_queued(p)) {
/*
* Inactive timer is armed. However, p is leaving DEADLINE and
* might migrate away from this rq while continuing to run on
* some other class. We need to remove its contribution from
* this rq running_bw now, or sub_rq_bw (below) will complain.
*/
if (p->dl.dl_non_contending)
sub_running_bw(&p->dl, &rq->dl);
sub_rq_bw(&p->dl, &rq->dl);
}
/*
* We cannot use inactive_task_timer() to invoke sub_running_bw()

6
kernel/stop_machine.c
View File

@ -270,7 +270,11 @@ unlock:
goto retry;
}
wake_up_q(&wakeq);
if (!err) {
preempt_disable();
wake_up_q(&wakeq);
preempt_enable();
}
return err;
}

77
lib/iov_iter.c
View File

@ -596,15 +596,70 @@ static unsigned long memcpy_mcsafe_to_page(struct page *page, size_t offset,
return ret;
}
static size_t copy_pipe_to_iter_mcsafe(const void *addr, size_t bytes,
struct iov_iter *i)
{
struct pipe_inode_info *pipe = i->pipe;
size_t n, off, xfer = 0;
int idx;
if (!sanity(i))
return 0;
bytes = n = push_pipe(i, bytes, &idx, &off);
if (unlikely(!n))
return 0;
for ( ; n; idx = next_idx(idx, pipe), off = 0) {
size_t chunk = min_t(size_t, n, PAGE_SIZE - off);
unsigned long rem;
rem = memcpy_mcsafe_to_page(pipe->bufs[idx].page, off, addr,
chunk);
i->idx = idx;
i->iov_offset = off + chunk - rem;
xfer += chunk - rem;
if (rem)
break;
n -= chunk;
addr += chunk;
}
i->count -= xfer;
return xfer;
}
/**
* _copy_to_iter_mcsafe - copy to user with source-read error exception handling
* @addr: source kernel address
* @bytes: total transfer length
* @iter: destination iterator
*
* The pmem driver arranges for filesystem-dax to use this facility via
* dax_copy_to_iter() for protecting read/write to persistent memory.
* Unless / until an architecture can guarantee identical performance
* between _copy_to_iter_mcsafe() and _copy_to_iter() it would be a
* performance regression to switch more users to the mcsafe version.
*
* Otherwise, the main differences between this and typical _copy_to_iter().
*
* * Typical tail/residue handling after a fault retries the copy
* byte-by-byte until the fault happens again. Re-triggering machine
* checks is potentially fatal so the implementation uses source
* alignment and poison alignment assumptions to avoid re-triggering
* hardware exceptions.
*
* * ITER_KVEC, ITER_PIPE, and ITER_BVEC can return short copies.
* Compare to copy_to_iter() where only ITER_IOVEC attempts might return
* a short copy.
*
* See MCSAFE_TEST for self-test.
*/
size_t _copy_to_iter_mcsafe(const void *addr, size_t bytes, struct iov_iter *i)
{
const char *from = addr;
unsigned long rem, curr_addr, s_addr = (unsigned long) addr;
if (unlikely(i->type & ITER_PIPE)) {
WARN_ON(1);
return 0;
}
if (unlikely(i->type & ITER_PIPE))
return copy_pipe_to_iter_mcsafe(addr, bytes, i);
if (iter_is_iovec(i))
might_fault();
iterate_and_advance(i, bytes, v,
@ -701,6 +756,20 @@ size_t _copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i)
EXPORT_SYMBOL(_copy_from_iter_nocache);
#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
/**
* _copy_from_iter_flushcache - write destination through cpu cache
* @addr: destination kernel address
* @bytes: total transfer length
* @iter: source iterator
*
* The pmem driver arranges for filesystem-dax to use this facility via
* dax_copy_from_iter() for ensuring that writes to persistent memory
* are flushed through the CPU cache. It is differentiated from
* _copy_from_iter_nocache() in that guarantees all data is flushed for
* all iterator types. The _copy_from_iter_nocache() only attempts to
* bypass the cache for the ITER_IOVEC case, and on some archs may use
* instructions that strand dirty-data in the cache.
*/
size_t _copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i)
{
char *to = addr;

2
mm/huge_memory.c
View File

@ -2084,6 +2084,8 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd,
if (vma_is_dax(vma))
return;
page = pmd_page(_pmd);
if (!PageDirty(page) && pmd_dirty(_pmd))
set_page_dirty(page);
if (!PageReferenced(page) && pmd_young(_pmd))
SetPageReferenced(page);
page_remove_rmap(page, true);

3
mm/memblock.c
View File

@ -20,6 +20,7 @@
#include <linux/kmemleak.h>
#include <linux/seq_file.h>
#include <linux/memblock.h>
#include <linux/bootmem.h>
#include <asm/sections.h>
#include <linux/io.h>
@ -1225,6 +1226,7 @@ phys_addr_t __init memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, i
return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ACCESSIBLE);
}
#if defined(CONFIG_NO_BOOTMEM)
/**
* memblock_virt_alloc_internal - allocate boot memory block
* @size: size of memory block to be allocated in bytes
@ -1432,6 +1434,7 @@ void * __init memblock_virt_alloc_try_nid(
(u64)max_addr);
return NULL;
}
#endif
/**
* __memblock_free_early - free boot memory block

2
mm/memcontrol.c
View File

@ -850,7 +850,7 @@ static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg)
int nid;
int i;
while ((memcg = parent_mem_cgroup(memcg))) {
for (; memcg; memcg = parent_mem_cgroup(memcg)) {
for_each_node(nid) {
mz = mem_cgroup_nodeinfo(memcg, nid);
for (i = 0; i <= DEF_PRIORITY; i++) {

35
mm/mmap.c
View File

@ -182,7 +182,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
if (vma->vm_file)
fput(vma->vm_file);
mpol_put(vma_policy(vma));
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
return next;
}
@ -911,7 +911,7 @@ again:
anon_vma_merge(vma, next);
mm->map_count--;
mpol_put(vma_policy(next));
kmem_cache_free(vm_area_cachep, next);
vm_area_free(next);
/*
* In mprotect's case 6 (see comments on vma_merge),
* we must remove another next too. It would clutter
@ -1729,19 +1729,17 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
* specific mapper. the address has already been validated, but
* not unmapped, but the maps are removed from the list.
*/
vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
vma = vm_area_alloc(mm);
if (!vma) {
error = -ENOMEM;
goto unacct_error;
}
vma->vm_mm = mm;
vma->vm_start = addr;
vma->vm_end = addr + len;
vma->vm_flags = vm_flags;
vma->vm_page_prot = vm_get_page_prot(vm_flags);
vma->vm_pgoff = pgoff;
INIT_LIST_HEAD(&vma->anon_vma_chain);
if (file) {
if (vm_flags & VM_DENYWRITE) {
@ -1832,7 +1830,7 @@ allow_write_and_free_vma:
if (vm_flags & VM_DENYWRITE)
allow_write_access(file);
free_vma:
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
unacct_error:
if (charged)
vm_unacct_memory(charged);
@ -2620,15 +2618,10 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
return err;
}
new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
new = vm_area_dup(vma);
if (!new)
return -ENOMEM;
/* most fields are the same, copy all, and then fixup */
*new = *vma;
INIT_LIST_HEAD(&new->anon_vma_chain);
if (new_below)
new->vm_end = addr;
else {
@ -2669,7 +2662,7 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
out_free_mpol:
mpol_put(vma_policy(new));
out_free_vma:
kmem_cache_free(vm_area_cachep, new);
vm_area_free(new);
return err;
}
@ -2984,14 +2977,12 @@ static int do_brk_flags(unsigned long addr, unsigned long len, unsigned long fla
/*
* create a vma struct for an anonymous mapping
*/
vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
vma = vm_area_alloc(mm);
if (!vma) {
vm_unacct_memory(len >> PAGE_SHIFT);
return -ENOMEM;
}
INIT_LIST_HEAD(&vma->anon_vma_chain);
vma->vm_mm = mm;
vma->vm_start = addr;
vma->vm_end = addr + len;
vma->vm_pgoff = pgoff;
@ -3202,16 +3193,14 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
}
*need_rmap_locks = (new_vma->vm_pgoff <= vma->vm_pgoff);
} else {
new_vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
new_vma = vm_area_dup(vma);
if (!new_vma)
goto out;
*new_vma = *vma;
new_vma->vm_start = addr;
new_vma->vm_end = addr + len;
new_vma->vm_pgoff = pgoff;
if (vma_dup_policy(vma, new_vma))
goto out_free_vma;
INIT_LIST_HEAD(&new_vma->anon_vma_chain);
if (anon_vma_clone(new_vma, vma))
goto out_free_mempol;
if (new_vma->vm_file)
@ -3226,7 +3215,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
out_free_mempol:
mpol_put(vma_policy(new_vma));
out_free_vma:
kmem_cache_free(vm_area_cachep, new_vma);
vm_area_free(new_vma);
out:
return NULL;
}
@ -3350,12 +3339,10 @@ static struct vm_area_struct *__install_special_mapping(
int ret;
struct vm_area_struct *vma;
vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
vma = vm_area_alloc(mm);
if (unlikely(vma == NULL))
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&vma->anon_vma_chain);
vma->vm_mm = mm;
vma->vm_start = addr;
vma->vm_end = addr + len;
@ -3376,7 +3363,7 @@ static struct vm_area_struct *__install_special_mapping(
return vma;
out:
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
return ERR_PTR(ret);
}

10
mm/nommu.c
View File

@ -769,7 +769,7 @@ static void delete_vma(struct mm_struct *mm, struct vm_area_struct *vma)
if (vma->vm_file)
fput(vma->vm_file);
put_nommu_region(vma->vm_region);
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
}
/*
@ -1204,7 +1204,7 @@ unsigned long do_mmap(struct file *file,
if (!region)
goto error_getting_region;
vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
vma = vm_area_alloc(current->mm);
if (!vma)
goto error_getting_vma;
@ -1212,7 +1212,6 @@ unsigned long do_mmap(struct file *file,
region->vm_flags = vm_flags;
region->vm_pgoff = pgoff;
INIT_LIST_HEAD(&vma->anon_vma_chain);
vma->vm_flags = vm_flags;
vma->vm_pgoff = pgoff;
@ -1368,7 +1367,7 @@ error:
kmem_cache_free(vm_region_jar, region);
if (vma->vm_file)
fput(vma->vm_file);
kmem_cache_free(vm_area_cachep, vma);
vm_area_free(vma);
return ret;
sharing_violation:
@ -1469,14 +1468,13 @@ int split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
if (!region)
return -ENOMEM;
new = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
new = vm_area_dup(vma);
if (!new) {
kmem_cache_free(vm_region_jar, region);
return -ENOMEM;
}
/* most fields are the same, copy all, and then fixup */
*new = *vma;
*region = *vma->vm_region;
new->vm_region = region;

4
net/caif/caif_dev.c
View File

@ -131,8 +131,10 @@ static void caif_flow_cb(struct sk_buff *skb)
caifd = caif_get(skb->dev);
WARN_ON(caifd == NULL);
if (caifd == NULL)
if (!caifd) {
rcu_read_unlock();
return;
}
caifd_hold(caifd);
rcu_read_unlock();

2
net/core/page_pool.c
View File

@ -269,7 +269,7 @@ static void __page_pool_empty_ring(struct page_pool *pool)
struct page *page;
/* Empty recycle ring */
while ((page = ptr_ring_consume(&pool->ring))) {
while ((page = ptr_ring_consume_bh(&pool->ring))) {
/* Verify the refcnt invariant of cached pages */
if (!(page_ref_count(page) == 1))
pr_crit("%s() page_pool refcnt %d violation\n",

10
net/core/skbuff.c
View File

@ -3720,6 +3720,7 @@ normal:
net_warn_ratelimited(
"skb_segment: too many frags: %u %u\n",
pos, mss);
err = -EINVAL;
goto err;
}
@ -3753,11 +3754,10 @@ skip_fraglist:
perform_csum_check:
if (!csum) {
if (skb_has_shared_frag(nskb)) {
err = __skb_linearize(nskb);
if (err)
goto err;
}
if (skb_has_shared_frag(nskb) &&
__skb_linearize(nskb))
goto err;
if (!nskb->remcsum_offload)
nskb->ip_summed = CHECKSUM_NONE;
SKB_GSO_CB(nskb)->csum =

6
net/core/sock.c
View File

@ -2316,9 +2316,9 @@ int sk_alloc_sg(struct sock *sk, int len, struct scatterlist *sg,
pfrag->offset += use;
sge = sg + sg_curr - 1;
if (sg_curr > first_coalesce && sg_page(sg) == pfrag->page &&
sg->offset + sg->length == orig_offset) {
sg->length += use;
if (sg_curr > first_coalesce && sg_page(sge) == pfrag->page &&
sge->offset + sge->length == orig_offset) {
sge->length += use;
} else {
sge = sg + sg_curr;
sg_unmark_end(sge);

3
net/ipv4/igmp.c
View File

@ -1200,8 +1200,7 @@ static void igmpv3_del_delrec(struct in_device *in_dev, struct ip_mc_list *im)
spin_lock_bh(&im->lock);
if (pmc) {
im->interface = pmc->interface;
im->sfmode = pmc->sfmode;
if (pmc->sfmode == MCAST_INCLUDE) {
if (im->sfmode == MCAST_INCLUDE) {
im->tomb = pmc->tomb;
im->sources = pmc->sources;
for (psf = im->sources; psf; psf = psf->sf_next)

2
net/ipv4/ip_output.c
View File

@ -524,6 +524,8 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
to->dev = from->dev;
to->mark = from->mark;
skb_copy_hash(to, from);
/* Copy the flags to each fragment. */
IPCB(to)->flags = IPCB(from)->flags;

7
net/ipv4/ip_sockglue.c
View File

@ -150,15 +150,18 @@ static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb)
{
struct sockaddr_in sin;
const struct iphdr *iph = ip_hdr(skb);
__be16 *ports = (__be16 *)skb_transport_header(skb);
__be16 *ports;
int end;
if (skb_transport_offset(skb) + 4 > (int)skb->len)
end = skb_transport_offset(skb) + 4;
if (end > 0 && !pskb_may_pull(skb, end))
return;
/* All current transport protocols have the port numbers in the
* first four bytes of the transport header and this function is
* written with this assumption in mind.
*/
ports = (__be16 *)skb_transport_header(skb);
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = iph->daddr;

52
net/ipv4/tcp_dctcp.c
View File

@ -129,24 +129,14 @@ static void dctcp_ce_state_0_to_1(struct sock *sk)
struct dctcp *ca = inet_csk_ca(sk);
struct tcp_sock *tp = tcp_sk(sk);
/* State has changed from CE=0 to CE=1 and delayed
* ACK has not sent yet.
*/
if (!ca->ce_state &&
inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER) {
u32 tmp_rcv_nxt;
/* Save current rcv_nxt. */
tmp_rcv_nxt = tp->rcv_nxt;
/* Generate previous ack with CE=0. */
tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
tp->rcv_nxt = ca->prior_rcv_nxt;
tcp_send_ack(sk);
/* Recover current rcv_nxt. */
tp->rcv_nxt = tmp_rcv_nxt;
if (!ca->ce_state) {
/* State has changed from CE=0 to CE=1, force an immediate
* ACK to reflect the new CE state. If an ACK was delayed,
* send that first to reflect the prior CE state.
*/
if (inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER)
__tcp_send_ack(sk, ca->prior_rcv_nxt);
tcp_enter_quickack_mode(sk, 1);
}
ca->prior_rcv_nxt = tp->rcv_nxt;
@ -160,24 +150,14 @@ static void dctcp_ce_state_1_to_0(struct sock *sk)
struct dctcp *ca = inet_csk_ca(sk);
struct tcp_sock *tp = tcp_sk(sk);
/* State has changed from CE=1 to CE=0 and delayed
* ACK has not sent yet.
*/
if (ca->ce_state &&
inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER) {
u32 tmp_rcv_nxt;
/* Save current rcv_nxt. */
tmp_rcv_nxt = tp->rcv_nxt;
/* Generate previous ack with CE=1. */
tp->ecn_flags |= TCP_ECN_DEMAND_CWR;
tp->rcv_nxt = ca->prior_rcv_nxt;
tcp_send_ack(sk);
/* Recover current rcv_nxt. */
tp->rcv_nxt = tmp_rcv_nxt;
if (ca->ce_state) {
/* State has changed from CE=1 to CE=0, force an immediate
* ACK to reflect the new CE state. If an ACK was delayed,
* send that first to reflect the prior CE state.
*/
if (inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER)
__tcp_send_ack(sk, ca->prior_rcv_nxt);
tcp_enter_quickack_mode(sk, 1);
}
ca->prior_rcv_nxt = tp->rcv_nxt;

65
net/ipv4/tcp_input.c
View File

@ -216,7 +216,7 @@ static void tcp_incr_quickack(struct sock *sk, unsigned int max_quickacks)
icsk->icsk_ack.quick = quickacks;
}
static void tcp_enter_quickack_mode(struct sock *sk, unsigned int max_quickacks)
void tcp_enter_quickack_mode(struct sock *sk, unsigned int max_quickacks)
{
struct inet_connection_sock *icsk = inet_csk(sk);
@ -224,6 +224,7 @@ static void tcp_enter_quickack_mode(struct sock *sk, unsigned int max_quickacks)
icsk->icsk_ack.pingpong = 0;
icsk->icsk_ack.ato = TCP_ATO_MIN;
}
EXPORT_SYMBOL(tcp_enter_quickack_mode);
/* Send ACKs quickly, if "quick" count is not exhausted
* and the session is not interactive.
@ -4366,6 +4367,23 @@ static bool tcp_try_coalesce(struct sock *sk,
return true;
}
static bool tcp_ooo_try_coalesce(struct sock *sk,
struct sk_buff *to,
struct sk_buff *from,
bool *fragstolen)
{
bool res = tcp_try_coalesce(sk, to, from, fragstolen);
/* In case tcp_drop() is called later, update to->gso_segs */
if (res) {
u32 gso_segs = max_t(u16, 1, skb_shinfo(to)->gso_segs) +
max_t(u16, 1, skb_shinfo(from)->gso_segs);
skb_shinfo(to)->gso_segs = min_t(u32, gso_segs, 0xFFFF);
}
return res;
}
static void tcp_drop(struct sock *sk, struct sk_buff *skb)
{
sk_drops_add(sk, skb);
@ -4489,8 +4507,8 @@ static void tcp_data_queue_ofo(struct sock *sk, struct sk_buff *skb)
/* In the typical case, we are adding an skb to the end of the list.
* Use of ooo_last_skb avoids the O(Log(N)) rbtree lookup.
*/
if (tcp_try_coalesce(sk, tp->ooo_last_skb,
skb, &fragstolen)) {
if (tcp_ooo_try_coalesce(sk, tp->ooo_last_skb,
skb, &fragstolen)) {
coalesce_done:
tcp_grow_window(sk, skb);
kfree_skb_partial(skb, fragstolen);
@ -4518,7 +4536,7 @@ coalesce_done:
/* All the bits are present. Drop. */
NET_INC_STATS(sock_net(sk),
LINUX_MIB_TCPOFOMERGE);
__kfree_skb(skb);
tcp_drop(sk, skb);
skb = NULL;
tcp_dsack_set(sk, seq, end_seq);
goto add_sack;
@ -4537,11 +4555,11 @@ coalesce_done:
TCP_SKB_CB(skb1)->end_seq);
NET_INC_STATS(sock_net(sk),
LINUX_MIB_TCPOFOMERGE);
__kfree_skb(skb1);
tcp_drop(sk, skb1);
goto merge_right;
}
} else if (tcp_try_coalesce(sk, skb1,
skb, &fragstolen)) {
} else if (tcp_ooo_try_coalesce(sk, skb1,
skb, &fragstolen)) {
goto coalesce_done;
}
p = &parent->rb_right;
@ -4924,6 +4942,7 @@ end:
static void tcp_collapse_ofo_queue(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
u32 range_truesize, sum_tiny = 0;
struct sk_buff *skb, *head;
u32 start, end;
@ -4935,6 +4954,7 @@ new_range:
}
start = TCP_SKB_CB(skb)->seq;
end = TCP_SKB_CB(skb)->end_seq;
range_truesize = skb->truesize;
for (head = skb;;) {
skb = skb_rb_next(skb);
@ -4945,11 +4965,20 @@ new_range:
if (!skb ||
after(TCP_SKB_CB(skb)->seq, end) ||
before(TCP_SKB_CB(skb)->end_seq, start)) {
tcp_collapse(sk, NULL, &tp->out_of_order_queue,
head, skb, start, end);
/* Do not attempt collapsing tiny skbs */
if (range_truesize != head->truesize ||
end - start >= SKB_WITH_OVERHEAD(SK_MEM_QUANTUM)) {
tcp_collapse(sk, NULL, &tp->out_of_order_queue,
head, skb, start, end);
} else {
sum_tiny += range_truesize;
if (sum_tiny > sk->sk_rcvbuf >> 3)
return;
}
goto new_range;
}
range_truesize += skb->truesize;
if (unlikely(before(TCP_SKB_CB(skb)->seq, start)))
start = TCP_SKB_CB(skb)->seq;
if (after(TCP_SKB_CB(skb)->end_seq, end))
@ -4964,6 +4993,7 @@ new_range:
* 2) not add too big latencies if thousands of packets sit there.
* (But if application shrinks SO_RCVBUF, we could still end up
* freeing whole queue here)
* 3) Drop at least 12.5 % of sk_rcvbuf to avoid malicious attacks.
*
* Return true if queue has shrunk.
*/
@ -4971,20 +5001,26 @@ static bool tcp_prune_ofo_queue(struct sock *sk)
{
struct tcp_sock *tp = tcp_sk(sk);
struct rb_node *node, *prev;
int goal;
if (RB_EMPTY_ROOT(&tp->out_of_order_queue))
return false;
NET_INC_STATS(sock_net(sk), LINUX_MIB_OFOPRUNED);
goal = sk->sk_rcvbuf >> 3;
node = &tp->ooo_last_skb->rbnode;
do {
prev = rb_prev(node);
rb_erase(node, &tp->out_of_order_queue);
goal -= rb_to_skb(node)->truesize;
tcp_drop(sk, rb_to_skb(node));
sk_mem_reclaim(sk);
if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf &&
!tcp_under_memory_pressure(sk))
break;
if (!prev || goal <= 0) {
sk_mem_reclaim(sk);
if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf &&
!tcp_under_memory_pressure(sk))
break;
goal = sk->sk_rcvbuf >> 3;
}
node = prev;
} while (node);
tp->ooo_last_skb = rb_to_skb(prev);
@ -5019,6 +5055,9 @@ static int tcp_prune_queue(struct sock *sk)
else if (tcp_under_memory_pressure(sk))
tp->rcv_ssthresh = min(tp->rcv_ssthresh, 4U * tp->advmss);
if (atomic_read(&sk->sk_rmem_alloc) <= sk->sk_rcvbuf)
return 0;
tcp_collapse_ofo_queue(sk);
if (!skb_queue_empty(&sk->sk_receive_queue))
tcp_collapse(sk, &sk->sk_receive_queue, NULL,

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