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Linux 5.11-rc5

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Merge v5.11-rc5 into android-mainline

Linux 5.11-rc5

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I779e8036e716416924f47e985d89ffe72e75dafc
This commit is contained in:
Greg Kroah-Hartman 2021-01-25 10:10:09 +01:00
commit 64efebc63c
130 changed files with 994 additions and 609 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Documentation/ABI/testing/sysfs-class-devlink
View File

@ -5,8 +5,8 @@ Description:
Provide a place in sysfs for the device link objects in the
kernel at any given time. The name of a device link directory,
denoted as ... above, is of the form <supplier>--<consumer>
where <supplier> is the supplier device name and <consumer> is
the consumer device name.
where <supplier> is the supplier bus:device name and <consumer>
is the consumer bus:device name.
What: /sys/class/devlink/.../auto_remove_on
Date: May 2020

5
Documentation/ABI/testing/sysfs-devices-consumer
View File

@ -4,5 +4,6 @@ Contact: Saravana Kannan <saravanak@google.com>
Description:
The /sys/devices/.../consumer:<consumer> are symlinks to device
links where this device is the supplier. <consumer> denotes the
name of the consumer in that device link. There can be zero or
more of these symlinks for a given device.
name of the consumer in that device link and is of the form
bus:device name. There can be zero or more of these symlinks
for a given device.

5
Documentation/ABI/testing/sysfs-devices-supplier
View File

@ -4,5 +4,6 @@ Contact: Saravana Kannan <saravanak@google.com>
Description:
The /sys/devices/.../supplier:<supplier> are symlinks to device
links where this device is the consumer. <supplier> denotes the
name of the supplier in that device link. There can be zero or
more of these symlinks for a given device.
name of the supplier in that device link and is of the form
bus:device name. There can be zero or more of these symlinks
for a given device.

27
Documentation/dev-tools/kasan.rst
View File

@ -160,29 +160,14 @@ intended for use in production as a security mitigation. Therefore it supports
boot parameters that allow to disable KASAN competely or otherwise control
particular KASAN features.
The things that can be controlled are:
- ``kasan=off`` or ``=on`` controls whether KASAN is enabled (default: ``on``).
1. Whether KASAN is enabled at all.
2. Whether KASAN collects and saves alloc/free stacks.
3. Whether KASAN panics on a detected bug or not.
- ``kasan.stacktrace=off`` or ``=on`` disables or enables alloc and free stack
traces collection (default: ``on`` for ``CONFIG_DEBUG_KERNEL=y``, otherwise
``off``).
The ``kasan.mode`` boot parameter allows to choose one of three main modes:
- ``kasan.mode=off`` - KASAN is disabled, no tag checks are performed
- ``kasan.mode=prod`` - only essential production features are enabled
- ``kasan.mode=full`` - all KASAN features are enabled
The chosen mode provides default control values for the features mentioned
above. However it's also possible to override the default values by providing:
- ``kasan.stacktrace=off`` or ``=on`` - enable alloc/free stack collection
(default: ``on`` for ``mode=full``,
otherwise ``off``)
- ``kasan.fault=report`` or ``=panic`` - only print KASAN report or also panic
(default: ``report``)
If ``kasan.mode`` parameter is not provided, it defaults to ``full`` when
``CONFIG_DEBUG_KERNEL`` is enabled, and to ``prod`` otherwise.
- ``kasan.fault=report`` or ``=panic`` controls whether to only print a KASAN
report or also panic the kernel (default: ``report``).
For developers
~~~~~~~~~~~~~~

4
Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml
View File

@ -16,8 +16,8 @@ description:
properties:
compatible:
enum:
- bosch,bmc150
- bosch,bmi055
- bosch,bmc150_accel
- bosch,bmi055_accel
- bosch,bma255
- bosch,bma250e
- bosch,bma222

8
MAINTAINERS
View File

@ -3879,7 +3879,7 @@ F: Documentation/devicetree/bindings/mtd/cadence-nand-controller.txt
F: drivers/mtd/nand/raw/cadence-nand-controller.c
CADENCE USB3 DRD IP DRIVER
M: Peter Chen <peter.chen@nxp.com>
M: Peter Chen <peter.chen@kernel.org>
M: Pawel Laszczak <pawell@cadence.com>
R: Roger Quadros <rogerq@kernel.org>
R: Aswath Govindraju <a-govindraju@ti.com>
@ -4161,7 +4161,7 @@ S: Maintained
F: Documentation/translations/zh_CN/
CHIPIDEA USB HIGH SPEED DUAL ROLE CONTROLLER
M: Peter Chen <Peter.Chen@nxp.com>
M: Peter Chen <peter.chen@kernel.org>
L: linux-usb@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git
@ -4311,7 +4311,9 @@ W: https://clangbuiltlinux.github.io/
B: https://github.com/ClangBuiltLinux/linux/issues
C: irc://chat.freenode.net/clangbuiltlinux
F: Documentation/kbuild/llvm.rst
F: include/linux/compiler-clang.h
F: scripts/clang-tools/
F: scripts/clang-version.sh
F: scripts/lld-version.sh
K: \b(?i:clang|llvm)\b
@ -18433,7 +18435,7 @@ F: Documentation/usb/ohci.rst
F: drivers/usb/host/ohci*
USB OTG FSM (Finite State Machine)
M: Peter Chen <Peter.Chen@nxp.com>
M: Peter Chen <peter.chen@kernel.org>
L: linux-usb@vger.kernel.org
S: Maintained
T: git git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb.git

2
Makefile
View File

@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 11
SUBLEVEL = 0
EXTRAVERSION = -rc4
EXTRAVERSION = -rc5
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*

1
arch/mips/include/asm/highmem.h
View File

@ -51,6 +51,7 @@ extern void kmap_flush_tlb(unsigned long addr);
#define flush_cache_kmaps() BUG_ON(cpu_has_dc_aliases)
#define arch_kmap_local_set_pte(mm, vaddr, ptep, ptev) set_pte(ptep, ptev)
#define arch_kmap_local_post_map(vaddr, pteval) local_flush_tlb_one(vaddr)
#define arch_kmap_local_post_unmap(vaddr) local_flush_tlb_one(vaddr)

13
arch/powerpc/include/asm/exception-64s.h
View File

@ -63,6 +63,12 @@
nop; \
nop;
#define SCV_ENTRY_FLUSH_SLOT \
SCV_ENTRY_FLUSH_FIXUP_SECTION; \
nop; \
nop; \
nop;
/*
* r10 must be free to use, r13 must be paca
*/
@ -70,6 +76,13 @@
STF_ENTRY_BARRIER_SLOT; \
ENTRY_FLUSH_SLOT
/*
* r10, ctr must be free to use, r13 must be paca
*/
#define SCV_INTERRUPT_TO_KERNEL \
STF_ENTRY_BARRIER_SLOT; \
SCV_ENTRY_FLUSH_SLOT
/*
* Macros for annotating the expected destination of (h)rfid
*

10
arch/powerpc/include/asm/feature-fixups.h
View File

@ -240,6 +240,14 @@ label##3: \
FTR_ENTRY_OFFSET 957b-958b; \
.popsection;
#define SCV_ENTRY_FLUSH_FIXUP_SECTION \
957: \
.pushsection __scv_entry_flush_fixup,"a"; \
.align 2; \
958: \
FTR_ENTRY_OFFSET 957b-958b; \
.popsection;
#define RFI_FLUSH_FIXUP_SECTION \
951: \
.pushsection __rfi_flush_fixup,"a"; \
@ -273,10 +281,12 @@ label##3: \
extern long stf_barrier_fallback;
extern long entry_flush_fallback;
extern long scv_entry_flush_fallback;
extern long __start___stf_entry_barrier_fixup, __stop___stf_entry_barrier_fixup;
extern long __start___stf_exit_barrier_fixup, __stop___stf_exit_barrier_fixup;
extern long __start___uaccess_flush_fixup, __stop___uaccess_flush_fixup;
extern long __start___entry_flush_fixup, __stop___entry_flush_fixup;
extern long __start___scv_entry_flush_fixup, __stop___scv_entry_flush_fixup;
extern long __start___rfi_flush_fixup, __stop___rfi_flush_fixup;
extern long __start___barrier_nospec_fixup, __stop___barrier_nospec_fixup;
extern long __start__btb_flush_fixup, __stop__btb_flush_fixup;

2
arch/powerpc/include/asm/highmem.h
View File

@ -58,6 +58,8 @@ extern pte_t *pkmap_page_table;
#define flush_cache_kmaps() flush_cache_all()
#define arch_kmap_local_set_pte(mm, vaddr, ptep, ptev) \
__set_pte_at(mm, vaddr, ptep, ptev, 1)
#define arch_kmap_local_post_map(vaddr, pteval) \
local_flush_tlb_page(NULL, vaddr)
#define arch_kmap_local_post_unmap(vaddr) \

2
arch/powerpc/kernel/entry_64.S
View File

@ -75,7 +75,7 @@ BEGIN_FTR_SECTION
bne .Ltabort_syscall
END_FTR_SECTION_IFSET(CPU_FTR_TM)
#endif
INTERRUPT_TO_KERNEL
SCV_INTERRUPT_TO_KERNEL
mr r10,r1
ld r1,PACAKSAVE(r13)
std r10,0(r1)

19
arch/powerpc/kernel/exceptions-64s.S
View File

@ -2993,6 +2993,25 @@ TRAMP_REAL_BEGIN(entry_flush_fallback)
ld r11,PACA_EXRFI+EX_R11(r13)
blr
/*
* The SCV entry flush happens with interrupts enabled, so it must disable
* to prevent EXRFI being clobbered by NMIs (e.g., soft_nmi_common). r10
* (containing LR) does not need to be preserved here because scv entry
* puts 0 in the pt_regs, CTR can be clobbered for the same reason.
*/
TRAMP_REAL_BEGIN(scv_entry_flush_fallback)
li r10,0
mtmsrd r10,1
lbz r10,PACAIRQHAPPENED(r13)
ori r10,r10,PACA_IRQ_HARD_DIS
stb r10,PACAIRQHAPPENED(r13)
std r11,PACA_EXRFI+EX_R11(r13)
L1D_DISPLACEMENT_FLUSH
ld r11,PACA_EXRFI+EX_R11(r13)
li r10,MSR_RI
mtmsrd r10,1
blr
TRAMP_REAL_BEGIN(rfi_flush_fallback)
SET_SCRATCH0(r13);
GET_PACA(r13);

7
arch/powerpc/kernel/vmlinux.lds.S
View File

@ -145,6 +145,13 @@ SECTIONS
__stop___entry_flush_fixup = .;
}
. = ALIGN(8);
__scv_entry_flush_fixup : AT(ADDR(__scv_entry_flush_fixup) - LOAD_OFFSET) {
__start___scv_entry_flush_fixup = .;
*(__scv_entry_flush_fixup)
__stop___scv_entry_flush_fixup = .;
}
. = ALIGN(8);
__stf_exit_barrier_fixup : AT(ADDR(__stf_exit_barrier_fixup) - LOAD_OFFSET) {
__start___stf_exit_barrier_fixup = .;

24
arch/powerpc/lib/feature-fixups.c
View File

@ -290,9 +290,6 @@ void do_entry_flush_fixups(enum l1d_flush_type types)
long *start, *end;
int i;
start = PTRRELOC(&__start___entry_flush_fixup);
end = PTRRELOC(&__stop___entry_flush_fixup);
instrs[0] = 0x60000000; /* nop */
instrs[1] = 0x60000000; /* nop */
instrs[2] = 0x60000000; /* nop */
@ -312,6 +309,8 @@ void do_entry_flush_fixups(enum l1d_flush_type types)
if (types & L1D_FLUSH_MTTRIG)
instrs[i++] = 0x7c12dba6; /* mtspr TRIG2,r0 (SPR #882) */
start = PTRRELOC(&__start___entry_flush_fixup);
end = PTRRELOC(&__stop___entry_flush_fixup);
for (i = 0; start < end; start++, i++) {
dest = (void *)start + *start;
@ -328,6 +327,25 @@ void do_entry_flush_fixups(enum l1d_flush_type types)
patch_instruction((struct ppc_inst *)(dest + 2), ppc_inst(instrs[2]));
}
start = PTRRELOC(&__start___scv_entry_flush_fixup);
end = PTRRELOC(&__stop___scv_entry_flush_fixup);
for (; start < end; start++, i++) {
dest = (void *)start + *start;
pr_devel("patching dest %lx\n", (unsigned long)dest);
patch_instruction((struct ppc_inst *)dest, ppc_inst(instrs[0]));
if (types == L1D_FLUSH_FALLBACK)
patch_branch((struct ppc_inst *)(dest + 1), (unsigned long)&scv_entry_flush_fallback,
BRANCH_SET_LINK);
else
patch_instruction((struct ppc_inst *)(dest + 1), ppc_inst(instrs[1]));
patch_instruction((struct ppc_inst *)(dest + 2), ppc_inst(instrs[2]));
}
printk(KERN_DEBUG "entry-flush: patched %d locations (%s flush)\n", i,
(types == L1D_FLUSH_NONE) ? "no" :
(types == L1D_FLUSH_FALLBACK) ? "fallback displacement" :

1
arch/sh/Kconfig
View File

@ -29,7 +29,6 @@ config SUPERH
select HAVE_ARCH_KGDB
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK
select HAVE_COPY_THREAD_TLS
select HAVE_DEBUG_BUGVERBOSE
select HAVE_DEBUG_KMEMLEAK
select HAVE_DYNAMIC_FTRACE

1
arch/sh/boards/mach-sh03/rtc.c
View File

@ -11,7 +11,6 @@
#include <linux/sched.h>
#include <linux/time.h>
#include <linux/bcd.h>
#include <linux/rtc.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/rtc.h>

9
arch/sh/configs/landisk_defconfig
View File

@ -27,13 +27,12 @@ CONFIG_NETFILTER=y
CONFIG_ATALK=m
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_OFFBOARD=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_AEC62XX=y
CONFIG_ATA=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_ATP867X=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_SCSI_MULTI_LUN=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m

2
arch/sh/configs/microdev_defconfig
View File

@ -20,8 +20,6 @@ CONFIG_IP_PNP=y
# CONFIG_IPV6 is not set
# CONFIG_FW_LOADER is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_SMC91X=y

6
arch/sh/configs/sdk7780_defconfig
View File

@ -44,16 +44,14 @@ CONFIG_NET_SCHED=y
CONFIG_PARPORT=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_PLATFORM=y
CONFIG_BLK_DEV_GENERIC=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_SPI_ATTRS=y
CONFIG_SCSI_FC_ATTRS=y
CONFIG_ATA=y
CONFIG_ATA_GENERIC=y
CONFIG_PATA_PLATFORM=y
CONFIG_MD=y
CONFIG_BLK_DEV_DM=y
CONFIG_NETDEVICES=y

3
arch/sh/configs/sdk7786_defconfig
View File

@ -116,9 +116,6 @@ CONFIG_MTD_UBI_GLUEBI=m
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_PLATFORM=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_SCSI_MULTI_LUN=y

1
arch/sh/configs/se7750_defconfig
View File

@ -29,7 +29,6 @@ CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
CONFIG_MTD_ROM=y
CONFIG_IDE=y
CONFIG_SCSI=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y

3
arch/sh/configs/sh03_defconfig
View File

@ -39,9 +39,6 @@ CONFIG_IP_PNP_RARP=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_BLK_DEV_IDETAPE=m
CONFIG_SCSI=m
CONFIG_BLK_DEV_SD=m
CONFIG_BLK_DEV_SR=m

3
arch/sh/drivers/dma/Kconfig
View File

@ -63,8 +63,7 @@ config PVR2_DMA
config G2_DMA
tristate "G2 Bus DMA support"
depends on SH_DREAMCAST
select SH_DMA_API
depends on SH_DREAMCAST && SH_DMA_API
help
This enables support for the DMA controller for the Dreamcast's
G2 bus. Drivers that want this will generally enable this on

1
arch/sh/include/asm/gpio.h
View File

@ -16,7 +16,6 @@
#include <cpu/gpio.h>
#endif
#define ARCH_NR_GPIOS 512
#include <asm-generic/gpio.h>
#ifdef CONFIG_GPIOLIB

1
arch/sh/kernel/cpu/sh3/entry.S
View File

@ -14,7 +14,6 @@
#include <cpu/mmu_context.h>
#include <asm/page.h>
#include <asm/cache.h>
#include <asm/thread_info.h>
! NOTE:
! GNU as (as of 2.9.1) changes bf/s into bt/s and bra, when the address

2
arch/sh/mm/Kconfig
View File

@ -105,7 +105,7 @@ config VSYSCALL
(the default value) say Y.
config NUMA
bool "Non Uniform Memory Access (NUMA) Support"
bool "Non-Uniform Memory Access (NUMA) Support"
depends on MMU && SYS_SUPPORTS_NUMA
select ARCH_WANT_NUMA_VARIABLE_LOCALITY
default n

15
arch/sh/mm/asids-debugfs.c
View File

@ -26,7 +26,7 @@
#include <asm/processor.h>
#include <asm/mmu_context.h>
static int asids_seq_show(struct seq_file *file, void *iter)
static int asids_debugfs_show(struct seq_file *file, void *iter)
{
struct task_struct *p;
@ -48,18 +48,7 @@ static int asids_seq_show(struct seq_file *file, void *iter)
return 0;
}
static int asids_debugfs_open(struct inode *inode, struct file *file)
{
return single_open(file, asids_seq_show, inode->i_private);
}
static const struct file_operations asids_debugfs_fops = {
.owner = THIS_MODULE,
.open = asids_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(asids_debugfs);
static int __init asids_debugfs_init(void)
{

15
arch/sh/mm/cache-debugfs.c
View File

@ -22,7 +22,7 @@ enum cache_type {
CACHE_TYPE_UNIFIED,
};
static int cache_seq_show(struct seq_file *file, void *iter)
static int cache_debugfs_show(struct seq_file *file, void *iter)
{
unsigned int cache_type = (unsigned int)file->private;
struct cache_info *cache;
@ -94,18 +94,7 @@ static int cache_seq_show(struct seq_file *file, void *iter)
return 0;
}
static int cache_debugfs_open(struct inode *inode, struct file *file)
{
return single_open(file, cache_seq_show, inode->i_private);
}
static const struct file_operations cache_debugfs_fops = {
.owner = THIS_MODULE,
.open = cache_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(cache_debugfs);
static int __init cache_debugfs_init(void)
{

15
arch/sh/mm/pmb.c
View File

@ -812,7 +812,7 @@ bool __in_29bit_mode(void)
return (__raw_readl(PMB_PASCR) & PASCR_SE) == 0;
}
static int pmb_seq_show(struct seq_file *file, void *iter)
static int pmb_debugfs_show(struct seq_file *file, void *iter)
{
int i;
@ -846,18 +846,7 @@ static int pmb_seq_show(struct seq_file *file, void *iter)
return 0;
}
static int pmb_debugfs_open(struct inode *inode, struct file *file)
{
return single_open(file, pmb_seq_show, NULL);
}
static const struct file_operations pmb_debugfs_fops = {
.owner = THIS_MODULE,
.open = pmb_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(pmb_debugfs);
static int __init pmb_debugfs_init(void)
{

9
arch/sparc/include/asm/highmem.h
View File

@ -50,10 +50,11 @@ extern pte_t *pkmap_page_table;
#define flush_cache_kmaps() flush_cache_all()
/* FIXME: Use __flush_tlb_one(vaddr) instead of flush_cache_all() -- Anton */
#define arch_kmap_local_post_map(vaddr, pteval) flush_cache_all()
#define arch_kmap_local_post_unmap(vaddr) flush_cache_all()
/* FIXME: Use __flush_*_one(vaddr) instead of flush_*_all() -- Anton */
#define arch_kmap_local_pre_map(vaddr, pteval) flush_cache_all()
#define arch_kmap_local_pre_unmap(vaddr) flush_cache_all()
#define arch_kmap_local_post_map(vaddr, pteval) flush_tlb_all()
#define arch_kmap_local_post_unmap(vaddr) flush_tlb_all()
#endif /* __KERNEL__ */

10
arch/x86/entry/common.c
View File

@ -73,10 +73,8 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs,
unsigned int nr)
{
if (likely(nr < IA32_NR_syscalls)) {
instrumentation_begin();
nr = array_index_nospec(nr, IA32_NR_syscalls);
regs->ax = ia32_sys_call_table[nr](regs);
instrumentation_end();
}
}
@ -91,8 +89,11 @@ __visible noinstr void do_int80_syscall_32(struct pt_regs *regs)
* or may not be necessary, but it matches the old asm behavior.
*/
nr = (unsigned int)syscall_enter_from_user_mode(regs, nr);
instrumentation_begin();
do_syscall_32_irqs_on(regs, nr);
instrumentation_end();
syscall_exit_to_user_mode(regs);
}
@ -121,11 +122,12 @@ static noinstr bool __do_fast_syscall_32(struct pt_regs *regs)
res = get_user(*(u32 *)&regs->bp,
(u32 __user __force *)(unsigned long)(u32)regs->sp);
}
instrumentation_end();
if (res) {
/* User code screwed up. */
regs->ax = -EFAULT;
instrumentation_end();
syscall_exit_to_user_mode(regs);
return false;
}
@ -135,6 +137,8 @@ static noinstr bool __do_fast_syscall_32(struct pt_regs *regs)
/* Now this is just like a normal syscall. */
do_syscall_32_irqs_on(regs, nr);
instrumentation_end();
syscall_exit_to_user_mode(regs);
return true;
}

15
arch/x86/include/asm/fpu/api.h
View File

@ -16,14 +16,25 @@
* Use kernel_fpu_begin/end() if you intend to use FPU in kernel context. It
* disables preemption so be careful if you intend to use it for long periods
* of time.
* If you intend to use the FPU in softirq you need to check first with
* If you intend to use the FPU in irq/softirq you need to check first with
* irq_fpu_usable() if it is possible.
*/
extern void kernel_fpu_begin(void);
/* Kernel FPU states to initialize in kernel_fpu_begin_mask() */
#define KFPU_387 _BITUL(0) /* 387 state will be initialized */
#define KFPU_MXCSR _BITUL(1) /* MXCSR will be initialized */
extern void kernel_fpu_begin_mask(unsigned int kfpu_mask);
extern void kernel_fpu_end(void);
extern bool irq_fpu_usable(void);
extern void fpregs_mark_activate(void);
/* Code that is unaware of kernel_fpu_begin_mask() can use this */
static inline void kernel_fpu_begin(void)
{
kernel_fpu_begin_mask(KFPU_387 | KFPU_MXCSR);
}
/*
* Use fpregs_lock() while editing CPU's FPU registers or fpu->state.
* A context switch will (and softirq might) save CPU's FPU registers to

1
arch/x86/include/asm/intel-family.h
View File

@ -97,6 +97,7 @@
#define INTEL_FAM6_LAKEFIELD 0x8A
#define INTEL_FAM6_ALDERLAKE 0x97
#define INTEL_FAM6_ALDERLAKE_L 0x9A
/* "Small Core" Processors (Atom) */

4
arch/x86/include/asm/msr.h
View File

@ -86,7 +86,7 @@ static inline void do_trace_rdpmc(unsigned int msr, u64 val, int failed) {}
* think of extending them - you will be slapped with a stinking trout or a frozen
* shark will reach you, wherever you are! You've been warned.
*/
static inline unsigned long long notrace __rdmsr(unsigned int msr)
static __always_inline unsigned long long __rdmsr(unsigned int msr)
{
DECLARE_ARGS(val, low, high);
@ -98,7 +98,7 @@ static inline unsigned long long notrace __rdmsr(unsigned int msr)
return EAX_EDX_VAL(val, low, high);
}
static inline void notrace __wrmsr(unsigned int msr, u32 low, u32 high)
static __always_inline void __wrmsr(unsigned int msr, u32 low, u32 high)
{
asm volatile("1: wrmsr\n"
"2:\n"

4
arch/x86/include/asm/topology.h
View File

@ -110,6 +110,8 @@ extern const struct cpumask *cpu_coregroup_mask(int cpu);
#define topology_die_id(cpu) (cpu_data(cpu).cpu_die_id)
#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
extern unsigned int __max_die_per_package;
#ifdef CONFIG_SMP
#define topology_die_cpumask(cpu) (per_cpu(cpu_die_map, cpu))
#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
@ -118,8 +120,6 @@ extern const struct cpumask *cpu_coregroup_mask(int cpu);
extern unsigned int __max_logical_packages;
#define topology_max_packages() (__max_logical_packages)
extern unsigned int __max_die_per_package;
static inline int topology_max_die_per_package(void)
{
return __max_die_per_package;

4
arch/x86/kernel/cpu/amd.c
View File

@ -542,12 +542,12 @@ static void bsp_init_amd(struct cpuinfo_x86 *c)
u32 ecx;
ecx = cpuid_ecx(0x8000001e);
nodes_per_socket = ((ecx >> 8) & 7) + 1;
__max_die_per_package = nodes_per_socket = ((ecx >> 8) & 7) + 1;
} else if (boot_cpu_has(X86_FEATURE_NODEID_MSR)) {
u64 value;
rdmsrl(MSR_FAM10H_NODE_ID, value);
nodes_per_socket = ((value >> 3) & 7) + 1;
__max_die_per_package = nodes_per_socket = ((value >> 3) & 7) + 1;
}
if (!boot_cpu_has(X86_FEATURE_AMD_SSBD) &&

7
arch/x86/kernel/cpu/mce/core.c
View File

@ -1992,10 +1992,9 @@ static __always_inline void exc_machine_check_kernel(struct pt_regs *regs)
* that out because it's an indirect call. Annotate it.
*/
instrumentation_begin();
trace_hardirqs_off_finish();
machine_check_vector(regs);
if (regs->flags & X86_EFLAGS_IF)
trace_hardirqs_on_prepare();
instrumentation_end();
irqentry_nmi_exit(regs, irq_state);
}
@ -2004,7 +2003,9 @@ static __always_inline void exc_machine_check_user(struct pt_regs *regs)
{
irqentry_enter_from_user_mode(regs);
instrumentation_begin();
machine_check_vector(regs);
instrumentation_end();
irqentry_exit_to_user_mode(regs);
}

2
arch/x86/kernel/cpu/topology.c
View File

@ -25,10 +25,10 @@
#define BITS_SHIFT_NEXT_LEVEL(eax) ((eax) & 0x1f)
#define LEVEL_MAX_SIBLINGS(ebx) ((ebx) & 0xffff)
#ifdef CONFIG_SMP
unsigned int __max_die_per_package __read_mostly = 1;
EXPORT_SYMBOL(__max_die_per_package);
#ifdef CONFIG_SMP
/*
* Check if given CPUID extended toplogy "leaf" is implemented
*/

9
arch/x86/kernel/fpu/core.c
View File

@ -121,7 +121,7 @@ int copy_fpregs_to_fpstate(struct fpu *fpu)
}
EXPORT_SYMBOL(copy_fpregs_to_fpstate);
void kernel_fpu_begin(void)
void kernel_fpu_begin_mask(unsigned int kfpu_mask)
{
preempt_disable();
@ -141,13 +141,14 @@ void kernel_fpu_begin(void)
}
__cpu_invalidate_fpregs_state();
if (boot_cpu_has(X86_FEATURE_XMM))
/* Put sane initial values into the control registers. */
if (likely(kfpu_mask & KFPU_MXCSR) && boot_cpu_has(X86_FEATURE_XMM))
ldmxcsr(MXCSR_DEFAULT);
if (boot_cpu_has(X86_FEATURE_FPU))
if (unlikely(kfpu_mask & KFPU_387) && boot_cpu_has(X86_FEATURE_FPU))
asm volatile ("fninit");
}
EXPORT_SYMBOL_GPL(kernel_fpu_begin);
EXPORT_SYMBOL_GPL(kernel_fpu_begin_mask);
void kernel_fpu_end(void)
{

20
arch/x86/kernel/setup.c
View File

@ -660,17 +660,6 @@ static void __init trim_platform_memory_ranges(void)
static void __init trim_bios_range(void)
{
/*
* A special case is the first 4Kb of memory;
* This is a BIOS owned area, not kernel ram, but generally
* not listed as such in the E820 table.
*
* This typically reserves additional memory (64KiB by default)
* since some BIOSes are known to corrupt low memory. See the
* Kconfig help text for X86_RESERVE_LOW.
*/
e820__range_update(0, PAGE_SIZE, E820_TYPE_RAM, E820_TYPE_RESERVED);
/*
* special case: Some BIOSes report the PC BIOS
* area (640Kb -> 1Mb) as RAM even though it is not.
@ -728,6 +717,15 @@ early_param("reservelow", parse_reservelow);
static void __init trim_low_memory_range(void)
{
/*
* A special case is the first 4Kb of memory;
* This is a BIOS owned area, not kernel ram, but generally
* not listed as such in the E820 table.
*
* This typically reserves additional memory (64KiB by default)
* since some BIOSes are known to corrupt low memory. See the
* Kconfig help text for X86_RESERVE_LOW.
*/
memblock_reserve(0, ALIGN(reserve_low, PAGE_SIZE));
}

14
arch/x86/kernel/sev-es.c
View File

@ -225,7 +225,7 @@ static inline u64 sev_es_rd_ghcb_msr(void)
return __rdmsr(MSR_AMD64_SEV_ES_GHCB);
}
static inline void sev_es_wr_ghcb_msr(u64 val)
static __always_inline void sev_es_wr_ghcb_msr(u64 val)
{
u32 low, high;
@ -286,6 +286,12 @@ static enum es_result vc_write_mem(struct es_em_ctxt *ctxt,
u16 d2;
u8 d1;
/* If instruction ran in kernel mode and the I/O buffer is in kernel space */
if (!user_mode(ctxt->regs) && !access_ok(target, size)) {
memcpy(dst, buf, size);
return ES_OK;
}
switch (size) {
case 1:
memcpy(&d1, buf, 1);
@ -335,6 +341,12 @@ static enum es_result vc_read_mem(struct es_em_ctxt *ctxt,
u16 d2;
u8 d1;
/* If instruction ran in kernel mode and the I/O buffer is in kernel space */
if (!user_mode(ctxt->regs) && !access_ok(s, size)) {
memcpy(buf, src, size);
return ES_OK;
}
switch (size) {
case 1:
if (get_user(d1, s))

19
arch/x86/kernel/smpboot.c
View File

@ -56,6 +56,7 @@
#include <linux/numa.h>
#include <linux/pgtable.h>
#include <linux/overflow.h>
#include <linux/syscore_ops.h>
#include <asm/acpi.h>
#include <asm/desc.h>
@ -2083,6 +2084,23 @@ static void init_counter_refs(void)
this_cpu_write(arch_prev_mperf, mperf);
}
#ifdef CONFIG_PM_SLEEP
static struct syscore_ops freq_invariance_syscore_ops = {
.resume = init_counter_refs,
};
static void register_freq_invariance_syscore_ops(void)
{
/* Bail out if registered already. */
if (freq_invariance_syscore_ops.node.prev)
return;
register_syscore_ops(&freq_invariance_syscore_ops);
}
#else
static inline void register_freq_invariance_syscore_ops(void) {}
#endif
static void init_freq_invariance(bool secondary, bool cppc_ready)
{
bool ret = false;
@ -2109,6 +2127,7 @@ static void init_freq_invariance(bool secondary, bool cppc_ready)
if (ret) {
init_counter_refs();
static_branch_enable(&arch_scale_freq_key);
register_freq_invariance_syscore_ops();
pr_info("Estimated ratio of average max frequency by base frequency (times 1024): %llu\n", arch_max_freq_ratio);
} else {
pr_debug("Couldn't determine max cpu frequency, necessary for scale-invariant accounting.\n");

20
arch/x86/lib/mmx_32.c
View File

@ -26,6 +26,16 @@
#include <asm/fpu/api.h>
#include <asm/asm.h>
/*
* Use KFPU_387. MMX instructions are not affected by MXCSR,
* but both AMD and Intel documentation states that even integer MMX
* operations will result in #MF if an exception is pending in FCW.
*
* EMMS is not needed afterwards because, after calling kernel_fpu_end(),
* any subsequent user of the 387 stack will reinitialize it using
* KFPU_387.
*/
void *_mmx_memcpy(void *to, const void *from, size_t len)
{
void *p;
@ -37,7 +47,7 @@ void *_mmx_memcpy(void *to, const void *from, size_t len)
p = to;
i = len >> 6; /* len/64 */
kernel_fpu_begin();
kernel_fpu_begin_mask(KFPU_387);
__asm__ __volatile__ (
"1: prefetch (%0)\n" /* This set is 28 bytes */
@ -127,7 +137,7 @@ static void fast_clear_page(void *page)
{
int i;
kernel_fpu_begin();
kernel_fpu_begin_mask(KFPU_387);
__asm__ __volatile__ (
" pxor %%mm0, %%mm0\n" : :
@ -160,7 +170,7 @@ static void fast_copy_page(void *to, void *from)
{
int i;
kernel_fpu_begin();
kernel_fpu_begin_mask(KFPU_387);
/*
* maybe the prefetch stuff can go before the expensive fnsave...
@ -247,7 +257,7 @@ static void fast_clear_page(void *page)
{
int i;
kernel_fpu_begin();
kernel_fpu_begin_mask(KFPU_387);
__asm__ __volatile__ (
" pxor %%mm0, %%mm0\n" : :
@ -282,7 +292,7 @@ static void fast_copy_page(void *to, void *from)
{
int i;
kernel_fpu_begin();
kernel_fpu_begin_mask(KFPU_387);
__asm__ __volatile__ (
"1: prefetch (%0)\n"

44
drivers/base/core.c
View File

@ -208,6 +208,16 @@ int device_links_read_lock_held(void)
#endif
#endif /* !CONFIG_SRCU */
static bool device_is_ancestor(struct device *dev, struct device *target)
{
while (target->parent) {
target = target->parent;
if (dev == target)
return true;
}
return false;
}
/**
* device_is_dependent - Check if one device depends on another one
* @dev: Device to check dependencies for.
@ -221,7 +231,12 @@ int device_is_dependent(struct device *dev, void *target)
struct device_link *link;
int ret;
if (dev == target)
/*
* The "ancestors" check is needed to catch the case when the target
* device has not been completely initialized yet and it is still
* missing from the list of children of its parent device.
*/
if (dev == target || device_is_ancestor(dev, target))
return 1;
ret = device_for_each_child(dev, target, device_is_dependent);
@ -456,7 +471,9 @@ static int devlink_add_symlinks(struct device *dev,
struct device *con = link->consumer;
char *buf;
len = max(strlen(dev_name(sup)), strlen(dev_name(con)));
len = max(strlen(dev_bus_name(sup)) + strlen(dev_name(sup)),
strlen(dev_bus_name(con)) + strlen(dev_name(con)));
len += strlen(":");
len += strlen("supplier:") + 1;
buf = kzalloc(len, GFP_KERNEL);
if (!buf)
@ -470,12 +487,12 @@ static int devlink_add_symlinks(struct device *dev,
if (ret)
goto err_con;
snprintf(buf, len, "consumer:%s", dev_name(con));
snprintf(buf, len, "consumer:%s:%s", dev_bus_name(con), dev_name(con));
ret = sysfs_create_link(&sup->kobj, &link->link_dev.kobj, buf);
if (ret)
goto err_con_dev;
snprintf(buf, len, "supplier:%s", dev_name(sup));
snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup));
ret = sysfs_create_link(&con->kobj, &link->link_dev.kobj, buf);
if (ret)
goto err_sup_dev;
@ -483,7 +500,7 @@ static int devlink_add_symlinks(struct device *dev,
goto out;
err_sup_dev:
snprintf(buf, len, "consumer:%s", dev_name(con));
snprintf(buf, len, "consumer:%s:%s", dev_bus_name(con), dev_name(con));
sysfs_remove_link(&sup->kobj, buf);
err_con_dev:
sysfs_remove_link(&link->link_dev.kobj, "consumer");
@ -506,7 +523,9 @@ static void devlink_remove_symlinks(struct device *dev,
sysfs_remove_link(&link->link_dev.kobj, "consumer");
sysfs_remove_link(&link->link_dev.kobj, "supplier");
len = max(strlen(dev_name(sup)), strlen(dev_name(con)));
len = max(strlen(dev_bus_name(sup)) + strlen(dev_name(sup)),
strlen(dev_bus_name(con)) + strlen(dev_name(con)));
len += strlen(":");
len += strlen("supplier:") + 1;
buf = kzalloc(len, GFP_KERNEL);
if (!buf) {
@ -514,9 +533,9 @@ static void devlink_remove_symlinks(struct device *dev,
return;
}
snprintf(buf, len, "supplier:%s", dev_name(sup));
snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup));
sysfs_remove_link(&con->kobj, buf);
snprintf(buf, len, "consumer:%s", dev_name(con));
snprintf(buf, len, "consumer:%s:%s", dev_bus_name(con), dev_name(con));
sysfs_remove_link(&sup->kobj, buf);
kfree(buf);
}
@ -737,8 +756,9 @@ struct device_link *device_link_add(struct device *consumer,
link->link_dev.class = &devlink_class;
device_set_pm_not_required(&link->link_dev);
dev_set_name(&link->link_dev, "%s--%s",
dev_name(supplier), dev_name(consumer));
dev_set_name(&link->link_dev, "%s:%s--%s:%s",
dev_bus_name(supplier), dev_name(supplier),
dev_bus_name(consumer), dev_name(consumer));
if (device_register(&link->link_dev)) {
put_device(consumer);
put_device(supplier);
@ -1808,9 +1828,7 @@ const char *dev_driver_string(const struct device *dev)
* never change once they are set, so they don't need special care.
*/
drv = READ_ONCE(dev->driver);
return drv ? drv->name :
(dev->bus ? dev->bus->name :
(dev->class ? dev->class->name : ""));
return drv ? drv->name : dev_bus_name(dev);
}
EXPORT_SYMBOL(dev_driver_string);

9
drivers/base/dd.c
View File

@ -370,13 +370,6 @@ static void driver_bound(struct device *dev)
device_pm_check_callbacks(dev);
/*
* Reorder successfully probed devices to the end of the device list.
* This ensures that suspend/resume order matches probe order, which
* is usually what drivers rely on.
*/
device_pm_move_to_tail(dev);
/*
* Make sure the device is no longer in one of the deferred lists and
* kick off retrying all pending devices
@ -619,6 +612,8 @@ static int really_probe(struct device *dev, struct device_driver *drv)
else if (drv->remove)
drv->remove(dev);
probe_failed:
kfree(dev->dma_range_map);
dev->dma_range_map = NULL;
if (dev->bus)
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
BUS_NOTIFY_DRIVER_NOT_BOUND, dev);

2
drivers/base/platform.c
View File

@ -366,6 +366,8 @@ int devm_platform_get_irqs_affinity(struct platform_device *dev,
return -ERANGE;
nvec = platform_irq_count(dev);
if (nvec < 0)
return nvec;
if (nvec < minvec)
return -ENOSPC;

35
drivers/counter/ti-eqep.c
View File

@ -235,36 +235,6 @@ static ssize_t ti_eqep_position_ceiling_write(struct counter_device *counter,
return len;
}
static ssize_t ti_eqep_position_floor_read(struct counter_device *counter,
struct counter_count *count,
void *ext_priv, char *buf)
{
struct ti_eqep_cnt *priv = counter->priv;
u32 qposinit;
regmap_read(priv->regmap32, QPOSINIT, &qposinit);
return sprintf(buf, "%u\n", qposinit);
}
static ssize_t ti_eqep_position_floor_write(struct counter_device *counter,
struct counter_count *count,
void *ext_priv, const char *buf,
size_t len)
{
struct ti_eqep_cnt *priv = counter->priv;
int err;
u32 res;
err = kstrtouint(buf, 0, &res);
if (err < 0)
return err;
regmap_write(priv->regmap32, QPOSINIT, res);
return len;
}
static ssize_t ti_eqep_position_enable_read(struct counter_device *counter,
struct counter_count *count,
void *ext_priv, char *buf)
@ -301,11 +271,6 @@ static struct counter_count_ext ti_eqep_position_ext[] = {
.read = ti_eqep_position_ceiling_read,
.write = ti_eqep_position_ceiling_write,
},
{
.name = "floor",
.read = ti_eqep_position_floor_read,
.write = ti_eqep_position_floor_write,
},
{
.name = "enable",
.read = ti_eqep_position_enable_read,

5
drivers/hwtracing/intel_th/pci.c
View File

@ -268,6 +268,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7aa6),
.driver_data = (kernel_ulong_t)&intel_th_2x,
},
{
/* Alder Lake-P */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x51a6),
.driver_data = (kernel_ulong_t)&intel_th_2x,
},
{
/* Alder Lake CPU */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x466f),

6
drivers/hwtracing/stm/heartbeat.c
View File

@ -64,7 +64,7 @@ static void stm_heartbeat_unlink(struct stm_source_data *data)
static int stm_heartbeat_init(void)
{
int i, ret = -ENOMEM;
int i, ret;
if (nr_devs < 0 || nr_devs > STM_HEARTBEAT_MAX)
return -EINVAL;
@ -72,8 +72,10 @@ static int stm_heartbeat_init(void)
for (i = 0; i < nr_devs; i++) {
stm_heartbeat[i].data.name =
kasprintf(GFP_KERNEL, "heartbeat.%d", i);
if (!stm_heartbeat[i].data.name)
if (!stm_heartbeat[i].data.name) {
ret = -ENOMEM;
goto fail_unregister;
}
stm_heartbeat[i].data.nr_chans = 1;
stm_heartbeat[i].data.link = stm_heartbeat_link;

6
drivers/iio/adc/ti_am335x_adc.c
View File

@ -397,16 +397,12 @@ static int tiadc_iio_buffered_hardware_setup(struct device *dev,
ret = devm_request_threaded_irq(dev, irq, pollfunc_th, pollfunc_bh,
flags, indio_dev->name, indio_dev);
if (ret)
goto error_kfifo_free;
return ret;
indio_dev->setup_ops = setup_ops;
indio_dev->modes |= INDIO_BUFFER_SOFTWARE;
return 0;
error_kfifo_free:
iio_kfifo_free(indio_dev->buffer);
return ret;
}
static const char * const chan_name_ain[] = {

31
drivers/iio/common/st_sensors/st_sensors_trigger.c
View File

@ -23,35 +23,31 @@
* @sdata: Sensor data.
*
* returns:
* 0 - no new samples available
* 1 - new samples available
* negative - error or unknown
* false - no new samples available or read error
* true - new samples available
*/
static int st_sensors_new_samples_available(struct iio_dev *indio_dev,
struct st_sensor_data *sdata)
static bool st_sensors_new_samples_available(struct iio_dev *indio_dev,
struct st_sensor_data *sdata)
{
int ret, status;
/* How would I know if I can't check it? */
if (!sdata->sensor_settings->drdy_irq.stat_drdy.addr)
return -EINVAL;
return true;
/* No scan mask, no interrupt */
if (!indio_dev->active_scan_mask)
return 0;
return false;
ret = regmap_read(sdata->regmap,
sdata->sensor_settings->drdy_irq.stat_drdy.addr,
&status);
if (ret < 0) {
dev_err(sdata->dev, "error checking samples available\n");
return ret;
return false;
}
if (status & sdata->sensor_settings->drdy_irq.stat_drdy.mask)
return 1;
return 0;
return !!(status & sdata->sensor_settings->drdy_irq.stat_drdy.mask);
}
/**
@ -180,9 +176,15 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
/* Tell the interrupt handler that we're dealing with edges */
if (irq_trig == IRQF_TRIGGER_FALLING ||
irq_trig == IRQF_TRIGGER_RISING)
irq_trig == IRQF_TRIGGER_RISING) {
if (!sdata->sensor_settings->drdy_irq.stat_drdy.addr) {
dev_err(&indio_dev->dev,
"edge IRQ not supported w/o stat register.\n");
err = -EOPNOTSUPP;
goto iio_trigger_free;
}
sdata->edge_irq = true;
else
} else {
/*
* If we're not using edges (i.e. level interrupts) we
* just mask off the IRQ, handle one interrupt, then
@ -190,6 +192,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
* interrupt handler top half again and start over.
*/
irq_trig |= IRQF_ONESHOT;
}
/*
* If the interrupt pin is Open Drain, by definition this

4
drivers/iio/dac/ad5504.c
View File

@ -187,9 +187,9 @@ static ssize_t ad5504_write_dac_powerdown(struct iio_dev *indio_dev,
return ret;
if (pwr_down)
st->pwr_down_mask |= (1 << chan->channel);
else
st->pwr_down_mask &= ~(1 << chan->channel);
else
st->pwr_down_mask |= (1 << chan->channel);
ret = ad5504_spi_write(st, AD5504_ADDR_CTRL,
AD5504_DAC_PWRDWN_MODE(st->pwr_down_mode) |

5
drivers/iio/proximity/sx9310.c
View File

@ -601,7 +601,7 @@ static int sx9310_read_thresh(struct sx9310_data *data,
return ret;
regval = FIELD_GET(SX9310_REG_PROX_CTRL8_9_PTHRESH_MASK, regval);
if (regval > ARRAY_SIZE(sx9310_pthresh_codes))
if (regval >= ARRAY_SIZE(sx9310_pthresh_codes))
return -EINVAL;
*val = sx9310_pthresh_codes[regval];
@ -1305,7 +1305,8 @@ sx9310_get_default_reg(struct sx9310_data *data, int i,
if (ret)
break;
pos = min(max(ilog2(pos), 3), 10) - 3;
/* Powers of 2, except for a gap between 16 and 64 */
pos = clamp(ilog2(pos), 3, 11) - (pos >= 32 ? 4 : 3);
reg_def->def &= ~SX9310_REG_PROX_CTRL7_AVGPOSFILT_MASK;
reg_def->def |= FIELD_PREP(SX9310_REG_PROX_CTRL7_AVGPOSFILT_MASK,
pos);

6
drivers/iio/temperature/mlx90632.c
View File

@ -248,6 +248,12 @@ static int mlx90632_set_meas_type(struct regmap *regmap, u8 type)
if (ret < 0)
return ret;
/*
* Give the mlx90632 some time to reset properly before sending a new I2C command
* if this is not done, the following I2C command(s) will not be accepted.
*/
usleep_range(150, 200);
ret = regmap_write_bits(regmap, MLX90632_REG_CONTROL,
(MLX90632_CFG_MTYP_MASK | MLX90632_CFG_PWR_MASK),
(MLX90632_MTYP_STATUS(type) | MLX90632_PWR_STATUS_HALT));

5
drivers/irqchip/Kconfig
View File

@ -494,8 +494,9 @@ config TI_SCI_INTA_IRQCHIP
TI System Controller, say Y here. Otherwise, say N.
config TI_PRUSS_INTC
tristate "TI PRU-ICSS Interrupt Controller"
depends on ARCH_DAVINCI || SOC_AM33XX || SOC_AM43XX || SOC_DRA7XX || ARCH_KEYSTONE || ARCH_K3
tristate
depends on TI_PRUSS
default TI_PRUSS
select IRQ_DOMAIN
help
This enables support for the PRU-ICSS Local Interrupt Controller

4
drivers/irqchip/irq-bcm2836.c
View File

@ -167,7 +167,7 @@ static void bcm2836_arm_irqchip_handle_ipi(struct irq_desc *desc)
chained_irq_exit(chip, desc);
}
static void bcm2836_arm_irqchip_ipi_eoi(struct irq_data *d)
static void bcm2836_arm_irqchip_ipi_ack(struct irq_data *d)
{
int cpu = smp_processor_id();
@ -195,7 +195,7 @@ static struct irq_chip bcm2836_arm_irqchip_ipi = {
.name = "IPI",
.irq_mask = bcm2836_arm_irqchip_dummy_op,
.irq_unmask = bcm2836_arm_irqchip_dummy_op,
.irq_eoi = bcm2836_arm_irqchip_ipi_eoi,
.irq_ack = bcm2836_arm_irqchip_ipi_ack,
.ipi_send_mask = bcm2836_arm_irqchip_ipi_send_mask,
};

4
drivers/irqchip/irq-loongson-liointc.c
View File

@ -142,8 +142,8 @@ static void liointc_resume(struct irq_chip_generic *gc)
static const char * const parent_names[] = {"int0", "int1", "int2", "int3"};
int __init liointc_of_init(struct device_node *node,
struct device_node *parent)
static int __init liointc_of_init(struct device_node *node,
struct device_node *parent)
{
struct irq_chip_generic *gc;
struct irq_domain *domain;

7
drivers/irqchip/irq-mips-cpu.c
View File

@ -197,6 +197,13 @@ static int mips_cpu_ipi_alloc(struct irq_domain *domain, unsigned int virq,
if (ret)
return ret;
ret = irq_domain_set_hwirq_and_chip(domain->parent, virq + i, hwirq,
&mips_mt_cpu_irq_controller,
NULL);
if (ret)
return ret;
ret = irq_set_irq_type(virq + i, IRQ_TYPE_LEVEL_HIGH);
if (ret)
return ret;

2
drivers/irqchip/irq-sl28cpld.c
View File

@ -66,7 +66,7 @@ static int sl28cpld_intc_probe(struct platform_device *pdev)
irqchip->chip.num_regs = 1;
irqchip->chip.status_base = base + INTC_IP;
irqchip->chip.mask_base = base + INTC_IE;
irqchip->chip.mask_invert = true,
irqchip->chip.mask_invert = true;
irqchip->chip.ack_base = base + INTC_IP;
return devm_regmap_add_irq_chip_fwnode(dev, dev_fwnode(dev),

3
drivers/lightnvm/core.c
View File

@ -844,11 +844,10 @@ static int nvm_bb_chunk_sense(struct nvm_dev *dev, struct ppa_addr ppa)
rqd.ppa_addr = generic_to_dev_addr(dev, ppa);
ret = nvm_submit_io_sync_raw(dev, &rqd);
__free_page(page);
if (ret)
return ret;
__free_page(page);
return rqd.error;
}

2
drivers/md/md.c
View File

@ -639,8 +639,10 @@ static void md_submit_flush_data(struct work_struct *ws)
* could wait for this and below md_handle_request could wait for those
* bios because of suspend check
*/
spin_lock_irq(&mddev->lock);
mddev->prev_flush_start = mddev->start_flush;
mddev->flush_bio = NULL;
spin_unlock_irq(&mddev->lock);
wake_up(&mddev->sb_wait);
if (bio->bi_iter.bi_size == 0) {

7
drivers/misc/cardreader/rtsx_pcr.c
View File

@ -1512,6 +1512,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
struct pcr_handle *handle;
u32 base, len;
int ret, i, bar = 0;
u8 val;
dev_dbg(&(pcidev->dev),
": Realtek PCI-E Card Reader found at %s [%04x:%04x] (rev %x)\n",
@ -1577,7 +1578,11 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
pcr->host_cmds_addr = pcr->rtsx_resv_buf_addr;
pcr->host_sg_tbl_ptr = pcr->rtsx_resv_buf + HOST_CMDS_BUF_LEN;
pcr->host_sg_tbl_addr = pcr->rtsx_resv_buf_addr + HOST_CMDS_BUF_LEN;
rtsx_pci_read_register(pcr, ASPM_FORCE_CTL, &val);
if (val & FORCE_ASPM_CTL0 && val & FORCE_ASPM_CTL1)
pcr->aspm_enabled = false;
else
pcr->aspm_enabled = true;
pcr->card_inserted = 0;
pcr->card_removed = 0;
INIT_DELAYED_WORK(&pcr->carddet_work, rtsx_pci_card_detect);

11
drivers/misc/habanalabs/common/device.c
View File

@ -1037,7 +1037,7 @@ int hl_device_reset(struct hl_device *hdev, bool hard_reset,
if (hard_reset) {
/* Release kernel context */
if (hl_ctx_put(hdev->kernel_ctx) == 1)
if (hdev->kernel_ctx && hl_ctx_put(hdev->kernel_ctx) == 1)
hdev->kernel_ctx = NULL;
hl_vm_fini(hdev);
hl_mmu_fini(hdev);
@ -1487,6 +1487,15 @@ void hl_device_fini(struct hl_device *hdev)
}
}
/* Disable PCI access from device F/W so it won't send us additional
* interrupts. We disable MSI/MSI-X at the halt_engines function and we
* can't have the F/W sending us interrupts after that. We need to
* disable the access here because if the device is marked disable, the
* message won't be send. Also, in case of heartbeat, the device CPU is
* marked as disable so this message won't be sent
*/
hl_fw_send_pci_access_msg(hdev, CPUCP_PACKET_DISABLE_PCI_ACCESS);
/* Mark device as disabled */
hdev->disabled = true;

5
drivers/misc/habanalabs/common/firmware_if.c
View File

@ -402,6 +402,10 @@ int hl_fw_cpucp_pci_counters_get(struct hl_device *hdev,
}
counters->rx_throughput = result;
memset(&pkt, 0, sizeof(pkt));
pkt.ctl = cpu_to_le32(CPUCP_PACKET_PCIE_THROUGHPUT_GET <<
CPUCP_PKT_CTL_OPCODE_SHIFT);
/* Fetch PCI tx counter */
pkt.index = cpu_to_le32(cpucp_pcie_throughput_tx);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
@ -414,6 +418,7 @@ int hl_fw_cpucp_pci_counters_get(struct hl_device *hdev,
counters->tx_throughput = result;
/* Fetch PCI replay counter */
memset(&pkt, 0, sizeof(pkt));
pkt.ctl = cpu_to_le32(CPUCP_PACKET_PCIE_REPLAY_CNT_GET <<
CPUCP_PKT_CTL_OPCODE_SHIFT);

1
drivers/misc/habanalabs/common/habanalabs.h
View File

@ -2182,6 +2182,7 @@ void hl_mmu_v1_set_funcs(struct hl_device *hdev, struct hl_mmu_funcs *mmu);
int hl_mmu_va_to_pa(struct hl_ctx *ctx, u64 virt_addr, u64 *phys_addr);
int hl_mmu_get_tlb_info(struct hl_ctx *ctx, u64 virt_addr,
struct hl_mmu_hop_info *hops);
bool hl_is_dram_va(struct hl_device *hdev, u64 virt_addr);
int hl_fw_load_fw_to_device(struct hl_device *hdev, const char *fw_name,
void __iomem *dst, u32 src_offset, u32 size);

2
drivers/misc/habanalabs/common/habanalabs_ioctl.c
View File

@ -133,6 +133,8 @@ static int hw_idle(struct hl_device *hdev, struct hl_info_args *args)
hw_idle.is_idle = hdev->asic_funcs->is_device_idle(hdev,
&hw_idle.busy_engines_mask_ext, NULL);
hw_idle.busy_engines_mask =
lower_32_bits(hw_idle.busy_engines_mask_ext);
return copy_to_user(out, &hw_idle,
min((size_t) max_size, sizeof(hw_idle))) ? -EFAULT : 0;

10
drivers/misc/habanalabs/common/memory.c
View File

@ -886,8 +886,10 @@ static void unmap_phys_pg_pack(struct hl_ctx *ctx, u64 vaddr,
{
struct hl_device *hdev = ctx->hdev;
u64 next_vaddr, i;
bool is_host_addr;
u32 page_size;
is_host_addr = !hl_is_dram_va(hdev, vaddr);
page_size = phys_pg_pack->page_size;
next_vaddr = vaddr;
@ -900,9 +902,13 @@ static void unmap_phys_pg_pack(struct hl_ctx *ctx, u64 vaddr,
/*
* unmapping on Palladium can be really long, so avoid a CPU
* soft lockup bug by sleeping a little between unmapping pages
*
* In addition, when unmapping host memory we pass through
* the Linux kernel to unpin the pages and that takes a long
* time. Therefore, sleep every 32K pages to avoid soft lockup
*/
if (hdev->pldm)
usleep_range(500, 1000);
if (hdev->pldm || (is_host_addr && (i & 0x7FFF) == 0))
usleep_range(50, 200);
}
}

6
drivers/misc/habanalabs/common/mmu.c
View File

@ -9,7 +9,7 @@
#include "habanalabs.h"
static bool is_dram_va(struct hl_device *hdev, u64 virt_addr)
bool hl_is_dram_va(struct hl_device *hdev, u64 virt_addr)
{
struct asic_fixed_properties *prop = &hdev->asic_prop;
@ -156,7 +156,7 @@ int hl_mmu_unmap_page(struct hl_ctx *ctx, u64 virt_addr, u32 page_size,
if (!hdev->mmu_enable)
return 0;
is_dram_addr = is_dram_va(hdev, virt_addr);
is_dram_addr = hl_is_dram_va(hdev, virt_addr);
if (is_dram_addr)
mmu_prop = &prop->dmmu;
@ -236,7 +236,7 @@ int hl_mmu_map_page(struct hl_ctx *ctx, u64 virt_addr, u64 phys_addr,
if (!hdev->mmu_enable)
return 0;
is_dram_addr = is_dram_va(hdev, virt_addr);
is_dram_addr = hl_is_dram_va(hdev, virt_addr);
if (is_dram_addr)
mmu_prop = &prop->dmmu;

12
drivers/misc/habanalabs/common/mmu_v1.c
View File

@ -467,8 +467,16 @@ static void hl_mmu_v1_fini(struct hl_device *hdev)
{
/* MMU H/W fini was already done in device hw_fini() */
kvfree(hdev->mmu_priv.dr.mmu_shadow_hop0);
gen_pool_destroy(hdev->mmu_priv.dr.mmu_pgt_pool);
if (!ZERO_OR_NULL_PTR(hdev->mmu_priv.hr.mmu_shadow_hop0)) {
kvfree(hdev->mmu_priv.dr.mmu_shadow_hop0);
gen_pool_destroy(hdev->mmu_priv.dr.mmu_pgt_pool);
}
/* Make sure that if we arrive here again without init was called we
* won't cause kernel panic. This can happen for example if we fail
* during hard reset code at certain points
*/
hdev->mmu_priv.dr.mmu_shadow_hop0 = NULL;
}
/**

3
drivers/misc/habanalabs/gaudi/gaudi.c
View File

@ -4002,7 +4002,8 @@ static int gaudi_cb_mmap(struct hl_device *hdev, struct vm_area_struct *vma,
vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP |
VM_DONTCOPY | VM_NORESERVE;
rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr, dma_addr, size);
rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr,
(dma_addr - HOST_PHYS_BASE), size);
if (rc)
dev_err(hdev->dev, "dma_mmap_coherent error %d", rc);

3
drivers/misc/habanalabs/goya/goya.c
View File

@ -2719,7 +2719,8 @@ static int goya_cb_mmap(struct hl_device *hdev, struct vm_area_struct *vma,
vma->vm_flags |= VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP |
VM_DONTCOPY | VM_NORESERVE;
rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr, dma_addr, size);
rc = dma_mmap_coherent(hdev->dev, vma, cpu_addr,
(dma_addr - HOST_PHYS_BASE), size);
if (rc)
dev_err(hdev->dev, "dma_mmap_coherent error %d", rc);

17
drivers/nvme/host/core.c
View File

@ -1543,8 +1543,21 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
}
length = (io.nblocks + 1) << ns->lba_shift;
meta_len = (io.nblocks + 1) * ns->ms;
metadata = nvme_to_user_ptr(io.metadata);
if ((io.control & NVME_RW_PRINFO_PRACT) &&
ns->ms == sizeof(struct t10_pi_tuple)) {
/*
* Protection information is stripped/inserted by the
* controller.
*/
if (nvme_to_user_ptr(io.metadata))
return -EINVAL;
meta_len = 0;
metadata = NULL;
} else {
meta_len = (io.nblocks + 1) * ns->ms;
metadata = nvme_to_user_ptr(io.metadata);
}
if (ns->features & NVME_NS_EXT_LBAS) {
length += meta_len;

119
drivers/nvme/host/pci.c
View File

@ -23,6 +23,7 @@
#include <linux/t10-pi.h>
#include <linux/types.h>
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/io-64-nonatomic-hi-lo.h>
#include <linux/sed-opal.h>
#include <linux/pci-p2pdma.h>
@ -542,50 +543,71 @@ static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req)
return true;
}
static void nvme_unmap_data(struct nvme_dev *dev, struct request *req)
static void nvme_free_prps(struct nvme_dev *dev, struct request *req)
{
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
const int last_prp = NVME_CTRL_PAGE_SIZE / sizeof(__le64) - 1;
dma_addr_t dma_addr = iod->first_dma, next_dma_addr;
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
dma_addr_t dma_addr = iod->first_dma;
int i;
if (iod->dma_len) {
dma_unmap_page(dev->dev, dma_addr, iod->dma_len,
rq_dma_dir(req));
return;
for (i = 0; i < iod->npages; i++) {
__le64 *prp_list = nvme_pci_iod_list(req)[i];
dma_addr_t next_dma_addr = le64_to_cpu(prp_list[last_prp]);
dma_pool_free(dev->prp_page_pool, prp_list, dma_addr);
dma_addr = next_dma_addr;
}
WARN_ON_ONCE(!iod->nents);
}
static void nvme_free_sgls(struct nvme_dev *dev, struct request *req)
{
const int last_sg = SGES_PER_PAGE - 1;
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
dma_addr_t dma_addr = iod->first_dma;
int i;
for (i = 0; i < iod->npages; i++) {
struct nvme_sgl_desc *sg_list = nvme_pci_iod_list(req)[i];
dma_addr_t next_dma_addr = le64_to_cpu((sg_list[last_sg]).addr);
dma_pool_free(dev->prp_page_pool, sg_list, dma_addr);
dma_addr = next_dma_addr;
}
}
static void nvme_unmap_sg(struct nvme_dev *dev, struct request *req)
{
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
if (is_pci_p2pdma_page(sg_page(iod->sg)))
pci_p2pdma_unmap_sg(dev->dev, iod->sg, iod->nents,
rq_dma_dir(req));
else
dma_unmap_sg(dev->dev, iod->sg, iod->nents, rq_dma_dir(req));
}
static void nvme_unmap_data(struct nvme_dev *dev, struct request *req)
{
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
if (iod->npages == 0)
dma_pool_free(dev->prp_small_pool, nvme_pci_iod_list(req)[0],
dma_addr);
for (i = 0; i < iod->npages; i++) {
void *addr = nvme_pci_iod_list(req)[i];
if (iod->use_sgl) {
struct nvme_sgl_desc *sg_list = addr;
next_dma_addr =
le64_to_cpu((sg_list[SGES_PER_PAGE - 1]).addr);
} else {
__le64 *prp_list = addr;
next_dma_addr = le64_to_cpu(prp_list[last_prp]);
}
dma_pool_free(dev->prp_page_pool, addr, dma_addr);
dma_addr = next_dma_addr;
if (iod->dma_len) {
dma_unmap_page(dev->dev, iod->first_dma, iod->dma_len,
rq_dma_dir(req));
return;
}
WARN_ON_ONCE(!iod->nents);
nvme_unmap_sg(dev, req);
if (iod->npages == 0)
dma_pool_free(dev->prp_small_pool, nvme_pci_iod_list(req)[0],
iod->first_dma);
else if (iod->use_sgl)
nvme_free_sgls(dev, req);
else
nvme_free_prps(dev, req);
mempool_free(iod->sg, dev->iod_mempool);
}
@ -661,7 +683,7 @@ static blk_status_t nvme_pci_setup_prps(struct nvme_dev *dev,
__le64 *old_prp_list = prp_list;
prp_list = dma_pool_alloc(pool, GFP_ATOMIC, &prp_dma);
if (!prp_list)
return BLK_STS_RESOURCE;
goto free_prps;
list[iod->npages++] = prp_list;
prp_list[0] = old_prp_list[i - 1];
old_prp_list[i - 1] = cpu_to_le64(prp_dma);
@ -681,14 +703,14 @@ static blk_status_t nvme_pci_setup_prps(struct nvme_dev *dev,
dma_addr = sg_dma_address(sg);
dma_len = sg_dma_len(sg);
}
done:
cmnd->dptr.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
cmnd->dptr.prp2 = cpu_to_le64(iod->first_dma);
return BLK_STS_OK;
bad_sgl:
free_prps:
nvme_free_prps(dev, req);
return BLK_STS_RESOURCE;
bad_sgl:
WARN(DO_ONCE(nvme_print_sgl, iod->sg, iod->nents),
"Invalid SGL for payload:%d nents:%d\n",
blk_rq_payload_bytes(req), iod->nents);
@ -760,7 +782,7 @@ static blk_status_t nvme_pci_setup_sgls(struct nvme_dev *dev,
sg_list = dma_pool_alloc(pool, GFP_ATOMIC, &sgl_dma);
if (!sg_list)
return BLK_STS_RESOURCE;
goto free_sgls;
i = 0;
nvme_pci_iod_list(req)[iod->npages++] = sg_list;
@ -773,6 +795,9 @@ static blk_status_t nvme_pci_setup_sgls(struct nvme_dev *dev,
} while (--entries > 0);
return BLK_STS_OK;
free_sgls:
nvme_free_sgls(dev, req);
return BLK_STS_RESOURCE;
}
static blk_status_t nvme_setup_prp_simple(struct nvme_dev *dev,
@ -841,7 +866,7 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
sg_init_table(iod->sg, blk_rq_nr_phys_segments(req));
iod->nents = blk_rq_map_sg(req->q, req, iod->sg);
if (!iod->nents)
goto out;
goto out_free_sg;
if (is_pci_p2pdma_page(sg_page(iod->sg)))
nr_mapped = pci_p2pdma_map_sg_attrs(dev->dev, iod->sg,
@ -850,16 +875,21 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
nr_mapped = dma_map_sg_attrs(dev->dev, iod->sg, iod->nents,
rq_dma_dir(req), DMA_ATTR_NO_WARN);
if (!nr_mapped)
goto out;
goto out_free_sg;
iod->use_sgl = nvme_pci_use_sgls(dev, req);
if (iod->use_sgl)
ret = nvme_pci_setup_sgls(dev, req, &cmnd->rw, nr_mapped);
else
ret = nvme_pci_setup_prps(dev, req, &cmnd->rw);
out:
if (ret != BLK_STS_OK)
nvme_unmap_data(dev, req);
goto out_unmap_sg;
return BLK_STS_OK;
out_unmap_sg:
nvme_unmap_sg(dev, req);
out_free_sg:
mempool_free(iod->sg, dev->iod_mempool);
return ret;
}
@ -1795,6 +1825,9 @@ static void nvme_map_cmb(struct nvme_dev *dev)
if (dev->cmb_size)
return;
if (NVME_CAP_CMBS(dev->ctrl.cap))
writel(NVME_CMBMSC_CRE, dev->bar + NVME_REG_CMBMSC);
dev->cmbsz = readl(dev->bar + NVME_REG_CMBSZ);
if (!dev->cmbsz)
return;
@ -1808,6 +1841,16 @@ static void nvme_map_cmb(struct nvme_dev *dev)
if (offset > bar_size)
return;
/*
* Tell the controller about the host side address mapping the CMB,
* and enable CMB decoding for the NVMe 1.4+ scheme:
*/
if (NVME_CAP_CMBS(dev->ctrl.cap)) {
hi_lo_writeq(NVME_CMBMSC_CRE | NVME_CMBMSC_CMSE |
(pci_bus_address(pdev, bar) + offset),
dev->bar + NVME_REG_CMBMSC);
}
/*
* Controllers may support a CMB size larger than their BAR,
* for example, due to being behind a bridge. Reduce the CMB to

15
drivers/nvme/host/rdma.c
View File

@ -97,6 +97,7 @@ struct nvme_rdma_queue {
struct completion cm_done;
bool pi_support;
int cq_size;
struct mutex queue_lock;
};
struct nvme_rdma_ctrl {
@ -579,6 +580,7 @@ static int nvme_rdma_alloc_queue(struct nvme_rdma_ctrl *ctrl,
int ret;
queue = &ctrl->queues[idx];
mutex_init(&queue->queue_lock);
queue->ctrl = ctrl;
if (idx && ctrl->ctrl.max_integrity_segments)
queue->pi_support = true;
@ -598,7 +600,8 @@ static int nvme_rdma_alloc_queue(struct nvme_rdma_ctrl *ctrl,
if (IS_ERR(queue->cm_id)) {
dev_info(ctrl->ctrl.device,
"failed to create CM ID: %ld\n", PTR_ERR(queue->cm_id));
return PTR_ERR(queue->cm_id);
ret = PTR_ERR(queue->cm_id);
goto out_destroy_mutex;
}
if (ctrl->ctrl.opts->mask & NVMF_OPT_HOST_TRADDR)
@ -628,6 +631,8 @@ static int nvme_rdma_alloc_queue(struct nvme_rdma_ctrl *ctrl,
out_destroy_cm_id:
rdma_destroy_id(queue->cm_id);
nvme_rdma_destroy_queue_ib(queue);
out_destroy_mutex:
mutex_destroy(&queue->queue_lock);
return ret;
}
@ -639,9 +644,10 @@ static void __nvme_rdma_stop_queue(struct nvme_rdma_queue *queue)
static void nvme_rdma_stop_queue(struct nvme_rdma_queue *queue)
{
if (!test_and_clear_bit(NVME_RDMA_Q_LIVE, &queue->flags))
return;
__nvme_rdma_stop_queue(queue);
mutex_lock(&queue->queue_lock);
if (test_and_clear_bit(NVME_RDMA_Q_LIVE, &queue->flags))
__nvme_rdma_stop_queue(queue);
mutex_unlock(&queue->queue_lock);
}
static void nvme_rdma_free_queue(struct nvme_rdma_queue *queue)
@ -651,6 +657,7 @@ static void nvme_rdma_free_queue(struct nvme_rdma_queue *queue)
nvme_rdma_destroy_queue_ib(queue);
rdma_destroy_id(queue->cm_id);
mutex_destroy(&queue->queue_lock);
}
static void nvme_rdma_free_io_queues(struct nvme_rdma_ctrl *ctrl)

14
drivers/nvme/host/tcp.c
View File

@ -76,6 +76,7 @@ struct nvme_tcp_queue {
struct work_struct io_work;
int io_cpu;
struct mutex queue_lock;
struct mutex send_mutex;
struct llist_head req_list;
struct list_head send_list;
@ -1219,6 +1220,7 @@ static void nvme_tcp_free_queue(struct nvme_ctrl *nctrl, int qid)
sock_release(queue->sock);
kfree(queue->pdu);
mutex_destroy(&queue->queue_lock);
}
static int nvme_tcp_init_connection(struct nvme_tcp_queue *queue)
@ -1380,6 +1382,7 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl,
struct nvme_tcp_queue *queue = &ctrl->queues[qid];
int ret, rcv_pdu_size;
mutex_init(&queue->queue_lock);
queue->ctrl = ctrl;
init_llist_head(&queue->req_list);
INIT_LIST_HEAD(&queue->send_list);
@ -1398,7 +1401,7 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl,
if (ret) {
dev_err(nctrl->device,
"failed to create socket: %d\n", ret);
return ret;
goto err_destroy_mutex;
}
/* Single syn retry */
@ -1507,6 +1510,8 @@ static int nvme_tcp_alloc_queue(struct nvme_ctrl *nctrl,
err_sock:
sock_release(queue->sock);
queue->sock = NULL;
err_destroy_mutex:
mutex_destroy(&queue->queue_lock);
return ret;
}
@ -1534,9 +1539,10 @@ static void nvme_tcp_stop_queue(struct nvme_ctrl *nctrl, int qid)
struct nvme_tcp_ctrl *ctrl = to_tcp_ctrl(nctrl);
struct nvme_tcp_queue *queue = &ctrl->queues[qid];
if (!test_and_clear_bit(NVME_TCP_Q_LIVE, &queue->flags))
return;
__nvme_tcp_stop_queue(queue);
mutex_lock(&queue->queue_lock);
if (test_and_clear_bit(NVME_TCP_Q_LIVE, &queue->flags))
__nvme_tcp_stop_queue(queue);
mutex_unlock(&queue->queue_lock);
}
static int nvme_tcp_start_queue(struct nvme_ctrl *nctrl, int idx)

8
drivers/nvme/target/admin-cmd.c
View File

@ -487,8 +487,10 @@ static void nvmet_execute_identify_ns(struct nvmet_req *req)
/* return an all zeroed buffer if we can't find an active namespace */
ns = nvmet_find_namespace(ctrl, req->cmd->identify.nsid);
if (!ns)
if (!ns) {
status = NVME_SC_INVALID_NS;
goto done;
}
nvmet_ns_revalidate(ns);
@ -541,7 +543,9 @@ static void nvmet_execute_identify_ns(struct nvmet_req *req)
id->nsattr |= (1 << 0);
nvmet_put_namespace(ns);
done:
status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id));
if (!status)
status = nvmet_copy_to_sgl(req, 0, id, sizeof(*id));
kfree(id);
out:
nvmet_req_complete(req, status);

2
drivers/phy/ingenic/Makefile
View File

@ -1,2 +1,2 @@
# SPDX-License-Identifier: GPL-2.0
obj-y += phy-ingenic-usb.o
obj-$(CONFIG_PHY_INGENIC_USB) += phy-ingenic-usb.o

4
drivers/phy/mediatek/Kconfig
View File

@ -49,7 +49,9 @@ config PHY_MTK_HDMI
config PHY_MTK_MIPI_DSI
tristate "MediaTek MIPI-DSI Driver"
depends on ARCH_MEDIATEK && OF
depends on ARCH_MEDIATEK || COMPILE_TEST
depends on COMMON_CLK
depends on OF
select GENERIC_PHY
help
Support MIPI DSI for Mediatek SoCs.

19
drivers/phy/motorola/phy-cpcap-usb.c
View File

@ -662,35 +662,42 @@ static int cpcap_usb_phy_probe(struct platform_device *pdev)
generic_phy = devm_phy_create(ddata->dev, NULL, &ops);
if (IS_ERR(generic_phy)) {
error = PTR_ERR(generic_phy);
return PTR_ERR(generic_phy);
goto out_reg_disable;
}
phy_set_drvdata(generic_phy, ddata);
phy_provider = devm_of_phy_provider_register(ddata->dev,
of_phy_simple_xlate);
if (IS_ERR(phy_provider))
return PTR_ERR(phy_provider);
if (IS_ERR(phy_provider)) {
error = PTR_ERR(phy_provider);
goto out_reg_disable;
}
error = cpcap_usb_init_optional_pins(ddata);
if (error)
return error;
goto out_reg_disable;
cpcap_usb_init_optional_gpios(ddata);
error = cpcap_usb_init_iio(ddata);
if (error)
return error;
goto out_reg_disable;
error = cpcap_usb_init_interrupts(pdev, ddata);
if (error)
return error;
goto out_reg_disable;
usb_add_phy_dev(&ddata->phy);
atomic_set(&ddata->active, 1);
schedule_delayed_work(&ddata->detect_work, msecs_to_jiffies(1));
return 0;
out_reg_disable:
regulator_disable(ddata->vusb);
return error;
}
static int cpcap_usb_phy_remove(struct platform_device *pdev)

2
drivers/sh/intc/core.c
View File

@ -214,7 +214,7 @@ int __init register_intc_controller(struct intc_desc *desc)
d->window[k].phys = res->start;
d->window[k].size = resource_size(res);
d->window[k].virt = ioremap(res->start,
resource_size(res));
resource_size(res));
if (!d->window[k].virt)
goto err2;
}

14
drivers/sh/intc/virq-debugfs.c
View File

@ -16,7 +16,7 @@
#include <linux/debugfs.h>
#include "internals.h"
static int intc_irq_xlate_debug(struct seq_file *m, void *priv)
static int intc_irq_xlate_show(struct seq_file *m, void *priv)
{
int i;
@ -37,17 +37,7 @@ static int intc_irq_xlate_debug(struct seq_file *m, void *priv)
return 0;
}
static int intc_irq_xlate_open(struct inode *inode, struct file *file)
{
return single_open(file, intc_irq_xlate_debug, inode->i_private);
}
static const struct file_operations intc_irq_xlate_fops = {
.open = intc_irq_xlate_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
DEFINE_SHOW_ATTRIBUTE(intc_irq_xlate);
static int __init intc_irq_xlate_init(void)
{

2
drivers/thunderbolt/icm.c
View File

@ -2316,7 +2316,7 @@ static int icm_usb4_switch_nvm_authenticate_status(struct tb_switch *sw,
if (auth && auth->reply.route_hi == sw->config.route_hi &&
auth->reply.route_lo == sw->config.route_lo) {
tb_dbg(tb, "NVM_AUTH found for %llx flags 0x%#x status %#x\n",
tb_dbg(tb, "NVM_AUTH found for %llx flags %#x status %#x\n",
tb_route(sw), auth->reply.hdr.flags, auth->reply.status);
if (auth->reply.hdr.flags & ICM_FLAGS_ERROR)
ret = -EIO;

10
drivers/tty/serial/mvebu-uart.c
View File

@ -648,6 +648,14 @@ static void wait_for_xmitr(struct uart_port *port)
(val & STAT_TX_RDY(port)), 1, 10000);
}
static void wait_for_xmite(struct uart_port *port)
{
u32 val;
readl_poll_timeout_atomic(port->membase + UART_STAT, val,
(val & STAT_TX_EMP), 1, 10000);
}
static void mvebu_uart_console_putchar(struct uart_port *port, int ch)
{
wait_for_xmitr(port);
@ -675,7 +683,7 @@ static void mvebu_uart_console_write(struct console *co, const char *s,
uart_console_write(port, s, count, mvebu_uart_console_putchar);
wait_for_xmitr(port);
wait_for_xmite(port);
if (ier)
writel(ier, port->membase + UART_CTRL(port));

51
drivers/tty/tty_io.c
View File

@ -143,9 +143,8 @@ LIST_HEAD(tty_drivers); /* linked list of tty drivers */
DEFINE_MUTEX(tty_mutex);
static ssize_t tty_read(struct file *, char __user *, size_t, loff_t *);
static ssize_t tty_write(struct file *, const char __user *, size_t, loff_t *);
ssize_t redirected_tty_write(struct file *, const char __user *,
size_t, loff_t *);
static ssize_t tty_write(struct kiocb *, struct iov_iter *);
ssize_t redirected_tty_write(struct kiocb *, struct iov_iter *);
static __poll_t tty_poll(struct file *, poll_table *);
static int tty_open(struct inode *, struct file *);
long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
@ -438,8 +437,7 @@ static ssize_t hung_up_tty_read(struct file *file, char __user *buf,
return 0;
}
static ssize_t hung_up_tty_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
static ssize_t hung_up_tty_write(struct kiocb *iocb, struct iov_iter *from)
{
return -EIO;
}
@ -478,7 +476,8 @@ static void tty_show_fdinfo(struct seq_file *m, struct file *file)
static const struct file_operations tty_fops = {
.llseek = no_llseek,
.read = tty_read,
.write = tty_write,
.write_iter = tty_write,
.splice_write = iter_file_splice_write,
.poll = tty_poll,
.unlocked_ioctl = tty_ioctl,
.compat_ioctl = tty_compat_ioctl,
@ -491,7 +490,8 @@ static const struct file_operations tty_fops = {
static const struct file_operations console_fops = {
.llseek = no_llseek,
.read = tty_read,
.write = redirected_tty_write,
.write_iter = redirected_tty_write,
.splice_write = iter_file_splice_write,
.poll = tty_poll,
.unlocked_ioctl = tty_ioctl,
.compat_ioctl = tty_compat_ioctl,
@ -503,7 +503,7 @@ static const struct file_operations console_fops = {
static const struct file_operations hung_up_tty_fops = {
.llseek = no_llseek,
.read = hung_up_tty_read,
.write = hung_up_tty_write,
.write_iter = hung_up_tty_write,
.poll = hung_up_tty_poll,
.unlocked_ioctl = hung_up_tty_ioctl,
.compat_ioctl = hung_up_tty_compat_ioctl,
@ -606,9 +606,9 @@ static void __tty_hangup(struct tty_struct *tty, int exit_session)
/* This breaks for file handles being sent over AF_UNIX sockets ? */
list_for_each_entry(priv, &tty->tty_files, list) {
filp = priv->file;
if (filp->f_op->write == redirected_tty_write)
if (filp->f_op->write_iter == redirected_tty_write)
cons_filp = filp;
if (filp->f_op->write != tty_write)
if (filp->f_op->write_iter != tty_write)
continue;
closecount++;
__tty_fasync(-1, filp, 0); /* can't block */
@ -901,9 +901,9 @@ static inline ssize_t do_tty_write(
ssize_t (*write)(struct tty_struct *, struct file *, const unsigned char *, size_t),
struct tty_struct *tty,
struct file *file,
const char __user *buf,
size_t count)
struct iov_iter *from)
{
size_t count = iov_iter_count(from);
ssize_t ret, written = 0;
unsigned int chunk;
@ -955,14 +955,20 @@ static inline ssize_t do_tty_write(
size_t size = count;
if (size > chunk)
size = chunk;
ret = -EFAULT;
if (copy_from_user(tty->write_buf, buf, size))
if (copy_from_iter(tty->write_buf, size, from) != size)
break;
ret = write(tty, file, tty->write_buf, size);
if (ret <= 0)
break;
/* FIXME! Have Al check this! */
if (ret != size)
iov_iter_revert(from, size-ret);
written += ret;
buf += ret;
count -= ret;
if (!count)
break;
@ -1022,9 +1028,9 @@ void tty_write_message(struct tty_struct *tty, char *msg)
* write method will not be invoked in parallel for each device.
*/
static ssize_t tty_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
static ssize_t tty_write(struct kiocb *iocb, struct iov_iter *from)
{
struct file *file = iocb->ki_filp;
struct tty_struct *tty = file_tty(file);
struct tty_ldisc *ld;
ssize_t ret;
@ -1038,17 +1044,16 @@ static ssize_t tty_write(struct file *file, const char __user *buf,
tty_err(tty, "missing write_room method\n");
ld = tty_ldisc_ref_wait(tty);
if (!ld)
return hung_up_tty_write(file, buf, count, ppos);
return hung_up_tty_write(iocb, from);
if (!ld->ops->write)
ret = -EIO;
else
ret = do_tty_write(ld->ops->write, tty, file, buf, count);
ret = do_tty_write(ld->ops->write, tty, file, from);
tty_ldisc_deref(ld);
return ret;
}
ssize_t redirected_tty_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
ssize_t redirected_tty_write(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *p = NULL;
@ -1059,11 +1064,11 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf,
if (p) {
ssize_t res;
res = vfs_write(p, buf, count, &p->f_pos);
res = vfs_iocb_iter_write(p, iocb, iter);
fput(p);
return res;
}
return tty_write(file, buf, count, ppos);
return tty_write(iocb, iter);
}
/*
@ -2295,7 +2300,7 @@ static int tioccons(struct file *file)
{
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (file->f_op->write == redirected_tty_write) {
if (file->f_op->write_iter == redirected_tty_write) {
struct file *f;
spin_lock(&redirect_lock);
f = redirect;

22
drivers/usb/cdns3/cdns3-imx.c
View File

@ -185,7 +185,11 @@ static int cdns_imx_probe(struct platform_device *pdev)
}
data->num_clks = ARRAY_SIZE(imx_cdns3_core_clks);
data->clks = (struct clk_bulk_data *)imx_cdns3_core_clks;
data->clks = devm_kmemdup(dev, imx_cdns3_core_clks,
sizeof(imx_cdns3_core_clks), GFP_KERNEL);
if (!data->clks)
return -ENOMEM;
ret = devm_clk_bulk_get(dev, data->num_clks, data->clks);
if (ret)
return ret;
@ -214,20 +218,16 @@ static int cdns_imx_probe(struct platform_device *pdev)
return ret;
}
static int cdns_imx_remove_core(struct device *dev, void *data)
{
struct platform_device *pdev = to_platform_device(dev);
platform_device_unregister(pdev);
return 0;
}
static int cdns_imx_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct cdns_imx *data = dev_get_drvdata(dev);
device_for_each_child(dev, NULL, cdns_imx_remove_core);
pm_runtime_get_sync(dev);
of_platform_depopulate(dev);
clk_bulk_disable_unprepare(data->num_clks, data->clks);
pm_runtime_disable(dev);
pm_runtime_put_noidle(dev);
platform_set_drvdata(pdev, NULL);
return 0;

5
drivers/usb/gadget/udc/aspeed-vhub/epn.c
View File

@ -420,7 +420,10 @@ static void ast_vhub_stop_active_req(struct ast_vhub_ep *ep,
u32 state, reg, loops;
/* Stop DMA activity */
writel(0, ep->epn.regs + AST_VHUB_EP_DMA_CTLSTAT);
if (ep->epn.desc_mode)
writel(VHUB_EP_DMA_CTRL_RESET, ep->epn.regs + AST_VHUB_EP_DMA_CTLSTAT);
else
writel(0, ep->epn.regs + AST_VHUB_EP_DMA_CTLSTAT);
/* Wait for it to complete */
for (loops = 0; loops < 1000; loops++) {

2
drivers/usb/gadget/udc/bdc/Kconfig
View File

@ -17,7 +17,7 @@ if USB_BDC_UDC
comment "Platform Support"
config USB_BDC_PCI
tristate "BDC support for PCIe based platforms"
depends on USB_PCI
depends on USB_PCI && BROKEN
default USB_BDC_UDC
help
Enable support for platforms which have BDC connected through PCIe, such as Lego3 FPGA platform.

13
drivers/usb/gadget/udc/core.c
View File

@ -1529,10 +1529,13 @@ static ssize_t soft_connect_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t n)
{
struct usb_udc *udc = container_of(dev, struct usb_udc, dev);
ssize_t ret;
mutex_lock(&udc_lock);
if (!udc->driver) {
dev_err(dev, "soft-connect without a gadget driver\n");
return -EOPNOTSUPP;
ret = -EOPNOTSUPP;
goto out;
}
if (sysfs_streq(buf, "connect")) {
@ -1543,10 +1546,14 @@ static ssize_t soft_connect_store(struct device *dev,
usb_gadget_udc_stop(udc);
} else {
dev_err(dev, "unsupported command '%s'\n", buf);
return -EINVAL;
ret = -EINVAL;
goto out;
}
return n;
ret = n;
out:
mutex_unlock(&udc_lock);
return ret;
}
static DEVICE_ATTR_WO(soft_connect);

10
drivers/usb/gadget/udc/dummy_hcd.c
View File

@ -2270,17 +2270,20 @@ static int dummy_hub_control(
}
fallthrough;
case USB_PORT_FEAT_RESET:
if (!(dum_hcd->port_status & USB_PORT_STAT_CONNECTION))
break;
/* if it's already enabled, disable */
if (hcd->speed == HCD_USB3) {
dum_hcd->port_status = 0;
dum_hcd->port_status =
(USB_SS_PORT_STAT_POWER |
USB_PORT_STAT_CONNECTION |
USB_PORT_STAT_RESET);
} else
} else {
dum_hcd->port_status &= ~(USB_PORT_STAT_ENABLE
| USB_PORT_STAT_LOW_SPEED
| USB_PORT_STAT_HIGH_SPEED);
dum_hcd->port_status |= USB_PORT_STAT_RESET;
}
/*
* We want to reset device status. All but the
* Self powered feature
@ -2292,7 +2295,8 @@ static int dummy_hub_control(
* interval? Is it still 50msec as for HS?
*/
dum_hcd->re_timeout = jiffies + msecs_to_jiffies(50);
fallthrough;
set_link_state(dum_hcd);
break;
case USB_PORT_FEAT_C_CONNECTION:
case USB_PORT_FEAT_C_RESET:
case USB_PORT_FEAT_C_ENABLE:

12
drivers/usb/host/ehci-hcd.c
View File

@ -574,6 +574,7 @@ static int ehci_run (struct usb_hcd *hcd)
struct ehci_hcd *ehci = hcd_to_ehci (hcd);
u32 temp;
u32 hcc_params;
int rc;
hcd->uses_new_polling = 1;
@ -629,9 +630,20 @@ static int ehci_run (struct usb_hcd *hcd)
down_write(&ehci_cf_port_reset_rwsem);
ehci->rh_state = EHCI_RH_RUNNING;
ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
/* Wait until HC become operational */
ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */
msleep(5);
rc = ehci_handshake(ehci, &ehci->regs->status, STS_HALT, 0, 100 * 1000);
up_write(&ehci_cf_port_reset_rwsem);
if (rc) {
ehci_err(ehci, "USB %x.%x, controller refused to start: %d\n",
((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), rc);
return rc;
}
ehci->last_periodic_enable = ktime_get_real();
temp = HC_VERSION(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));

3
drivers/usb/host/ehci-hub.c
View File

@ -345,6 +345,9 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
unlink_empty_async_suspended(ehci);
/* Some Synopsys controllers mistakenly leave IAA turned on */
ehci_writel(ehci, STS_IAA, &ehci->regs->status);
/* Any IAA cycle that started before the suspend is now invalid */
end_iaa_cycle(ehci);
ehci_handle_start_intr_unlinks(ehci);

2
drivers/usb/host/xhci-ring.c
View File

@ -2931,6 +2931,8 @@ static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring,
trb->field[0] = cpu_to_le32(field1);
trb->field[1] = cpu_to_le32(field2);
trb->field[2] = cpu_to_le32(field3);
/* make sure TRB is fully written before giving it to the controller */
wmb();
trb->field[3] = cpu_to_le32(field4);
trace_xhci_queue_trb(ring, trb);

7
drivers/usb/host/xhci-tegra.c
View File

@ -623,6 +623,13 @@ static void tegra_xusb_mbox_handle(struct tegra_xusb *tegra,
enable);
if (err < 0)
break;
/*
* wait 500us for LFPS detector to be disabled before
* sending ACK
*/
if (!enable)
usleep_range(500, 1000);
}
if (err < 0) {

4
fs/cifs/connect.c
View File

@ -2195,7 +2195,7 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
if (ses->server->capabilities & SMB2_GLOBAL_CAP_DIRECTORY_LEASING)
tcon->nohandlecache = ctx->nohandlecache;
else
tcon->nohandlecache = 1;
tcon->nohandlecache = true;
tcon->nodelete = ctx->nodelete;
tcon->local_lease = ctx->local_lease;
INIT_LIST_HEAD(&tcon->pending_opens);
@ -2628,7 +2628,7 @@ void reset_cifs_unix_caps(unsigned int xid, struct cifs_tcon *tcon,
} else if (ctx)
tcon->unix_ext = 1; /* Unix Extensions supported */
if (tcon->unix_ext == 0) {
if (!tcon->unix_ext) {
cifs_dbg(FYI, "Unix extensions disabled so not set on reconnect\n");
return;
}

4
fs/cifs/transport.c
View File

@ -338,7 +338,7 @@ __smb_send_rqst(struct TCP_Server_Info *server, int num_rqst,
if (ssocket == NULL)
return -EAGAIN;
if (signal_pending(current)) {
if (fatal_signal_pending(current)) {
cifs_dbg(FYI, "signal pending before send request\n");
return -ERESTARTSYS;
}
@ -429,7 +429,7 @@ __smb_send_rqst(struct TCP_Server_Info *server, int num_rqst,
if (signal_pending(current) && (total_len != send_length)) {
cifs_dbg(FYI, "signal is pending after attempt to send\n");
rc = -EINTR;
rc = -ERESTARTSYS;
}
/* uncork it */

67
fs/io_uring.c
View File

@ -1025,6 +1025,7 @@ static ssize_t io_import_iovec(int rw, struct io_kiocb *req,
static int io_setup_async_rw(struct io_kiocb *req, const struct iovec *iovec,
const struct iovec *fast_iov,
struct iov_iter *iter, bool force);
static void io_req_drop_files(struct io_kiocb *req);
static struct kmem_cache *req_cachep;
@ -1048,8 +1049,7 @@ EXPORT_SYMBOL(io_uring_get_socket);
static inline void io_clean_op(struct io_kiocb *req)
{
if (req->flags & (REQ_F_NEED_CLEANUP | REQ_F_BUFFER_SELECTED |
REQ_F_INFLIGHT))
if (req->flags & (REQ_F_NEED_CLEANUP | REQ_F_BUFFER_SELECTED))
__io_clean_op(req);
}
@ -1075,8 +1075,11 @@ static bool io_match_task(struct io_kiocb *head,
return true;
io_for_each_link(req, head) {
if ((req->flags & REQ_F_WORK_INITIALIZED) &&
(req->work.flags & IO_WQ_WORK_FILES) &&
if (!(req->flags & REQ_F_WORK_INITIALIZED))
continue;
if (req->file && req->file->f_op == &io_uring_fops)
return true;
if ((req->work.flags & IO_WQ_WORK_FILES) &&
req->work.identity->files == files)
return true;
}
@ -1394,6 +1397,8 @@ static void io_req_clean_work(struct io_kiocb *req)
free_fs_struct(fs);
req->work.flags &= ~IO_WQ_WORK_FS;
}
if (req->flags & REQ_F_INFLIGHT)
io_req_drop_files(req);
io_put_identity(req->task->io_uring, req);
}
@ -1503,11 +1508,14 @@ static bool io_grab_identity(struct io_kiocb *req)
return false;
atomic_inc(&id->files->count);
get_nsproxy(id->nsproxy);
req->flags |= REQ_F_INFLIGHT;
spin_lock_irq(&ctx->inflight_lock);
list_add(&req->inflight_entry, &ctx->inflight_list);
spin_unlock_irq(&ctx->inflight_lock);
if (!(req->flags & REQ_F_INFLIGHT)) {
req->flags |= REQ_F_INFLIGHT;
spin_lock_irq(&ctx->inflight_lock);
list_add(&req->inflight_entry, &ctx->inflight_list);
spin_unlock_irq(&ctx->inflight_lock);
}
req->work.flags |= IO_WQ_WORK_FILES;
}
if (!(req->work.flags & IO_WQ_WORK_MM) &&
@ -2270,6 +2278,8 @@ static void io_req_free_batch_finish(struct io_ring_ctx *ctx,
struct io_uring_task *tctx = rb->task->io_uring;
percpu_counter_sub(&tctx->inflight, rb->task_refs);
if (atomic_read(&tctx->in_idle))
wake_up(&tctx->wait);
put_task_struct_many(rb->task, rb->task_refs);
rb->task = NULL;
}
@ -2288,6 +2298,8 @@ static void io_req_free_batch(struct req_batch *rb, struct io_kiocb *req)
struct io_uring_task *tctx = rb->task->io_uring;
percpu_counter_sub(&tctx->inflight, rb->task_refs);
if (atomic_read(&tctx->in_idle))
wake_up(&tctx->wait);
put_task_struct_many(rb->task, rb->task_refs);
}
rb->task = req->task;
@ -3548,7 +3560,7 @@ static int io_read(struct io_kiocb *req, bool force_nonblock,
/* read it all, or we did blocking attempt. no retry. */
if (!iov_iter_count(iter) || !force_nonblock ||
(req->file->f_flags & O_NONBLOCK))
(req->file->f_flags & O_NONBLOCK) || !(req->flags & REQ_F_ISREG))
goto done;
io_size -= ret;
@ -4468,7 +4480,6 @@ static int io_close_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
* io_wq_work.flags, so initialize io_wq_work firstly.
*/
io_req_init_async(req);
req->work.flags |= IO_WQ_WORK_NO_CANCEL;
if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL))
return -EINVAL;
@ -4501,6 +4512,8 @@ static int io_close(struct io_kiocb *req, bool force_nonblock,
/* if the file has a flush method, be safe and punt to async */
if (close->put_file->f_op->flush && force_nonblock) {
/* not safe to cancel at this point */
req->work.flags |= IO_WQ_WORK_NO_CANCEL;
/* was never set, but play safe */
req->flags &= ~REQ_F_NOWAIT;
/* avoid grabbing files - we don't need the files */
@ -6157,8 +6170,10 @@ static void io_req_drop_files(struct io_kiocb *req)
struct io_uring_task *tctx = req->task->io_uring;
unsigned long flags;
put_files_struct(req->work.identity->files);
put_nsproxy(req->work.identity->nsproxy);
if (req->work.flags & IO_WQ_WORK_FILES) {
put_files_struct(req->work.identity->files);
put_nsproxy(req->work.identity->nsproxy);
}
spin_lock_irqsave(&ctx->inflight_lock, flags);
list_del(&req->inflight_entry);
spin_unlock_irqrestore(&ctx->inflight_lock, flags);
@ -6225,9 +6240,6 @@ static void __io_clean_op(struct io_kiocb *req)
}
req->flags &= ~REQ_F_NEED_CLEANUP;
}
if (req->flags & REQ_F_INFLIGHT)
io_req_drop_files(req);
}
static int io_issue_sqe(struct io_kiocb *req, bool force_nonblock,
@ -6446,6 +6458,15 @@ static struct file *io_file_get(struct io_submit_state *state,
file = __io_file_get(state, fd);
}
if (file && file->f_op == &io_uring_fops) {
io_req_init_async(req);
req->flags |= REQ_F_INFLIGHT;
spin_lock_irq(&ctx->inflight_lock);
list_add(&req->inflight_entry, &ctx->inflight_list);
spin_unlock_irq(&ctx->inflight_lock);
}
return file;
}
@ -8856,8 +8877,7 @@ static void io_uring_cancel_files(struct io_ring_ctx *ctx,
spin_lock_irq(&ctx->inflight_lock);
list_for_each_entry(req, &ctx->inflight_list, inflight_entry) {
if (req->task != task ||
req->work.identity->files != files)
if (!io_match_task(req, task, files))
continue;
found = true;
break;
@ -8874,6 +8894,7 @@ static void io_uring_cancel_files(struct io_ring_ctx *ctx,
io_wq_cancel_cb(ctx->io_wq, io_cancel_task_cb, &cancel, true);
io_poll_remove_all(ctx, task, files);
io_kill_timeouts(ctx, task, files);
io_cqring_overflow_flush(ctx, true, task, files);
/* cancellations _may_ trigger task work */
io_run_task_work();
schedule();
@ -8914,8 +8935,6 @@ static void __io_uring_cancel_task_requests(struct io_ring_ctx *ctx,
static void io_disable_sqo_submit(struct io_ring_ctx *ctx)
{
WARN_ON_ONCE(ctx->sqo_task != current);
mutex_lock(&ctx->uring_lock);
ctx->sqo_dead = 1;
mutex_unlock(&ctx->uring_lock);
@ -8937,6 +8956,7 @@ static void io_uring_cancel_task_requests(struct io_ring_ctx *ctx,
if ((ctx->flags & IORING_SETUP_SQPOLL) && ctx->sq_data) {
/* for SQPOLL only sqo_task has task notes */
WARN_ON_ONCE(ctx->sqo_task != current);
io_disable_sqo_submit(ctx);
task = ctx->sq_data->thread;
atomic_inc(&task->io_uring->in_idle);
@ -9082,6 +9102,10 @@ void __io_uring_task_cancel(void)
/* make sure overflow events are dropped */
atomic_inc(&tctx->in_idle);
/* trigger io_disable_sqo_submit() */
if (tctx->sqpoll)
__io_uring_files_cancel(NULL);
do {
/* read completions before cancelations */
inflight = tctx_inflight(tctx);
@ -9128,7 +9152,10 @@ static int io_uring_flush(struct file *file, void *data)
if (ctx->flags & IORING_SETUP_SQPOLL) {
/* there is only one file note, which is owned by sqo_task */
WARN_ON_ONCE((ctx->sqo_task == current) ==
WARN_ON_ONCE(ctx->sqo_task != current &&
xa_load(&tctx->xa, (unsigned long)file));
/* sqo_dead check is for when this happens after cancellation */
WARN_ON_ONCE(ctx->sqo_task == current && !ctx->sqo_dead &&
!xa_load(&tctx->xa, (unsigned long)file));
io_disable_sqo_submit(ctx);

65
fs/kernfs/file.c
View File

@ -14,6 +14,7 @@
#include <linux/pagemap.h>
#include <linux/sched/mm.h>
#include <linux/fsnotify.h>
#include <linux/uio.h>
#include "kernfs-internal.h"
@ -180,11 +181,10 @@ static const struct seq_operations kernfs_seq_ops = {
* it difficult to use seq_file. Implement simplistic custom buffering for
* bin files.
*/
static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
char __user *user_buf, size_t count,
loff_t *ppos)
static ssize_t kernfs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
{
ssize_t len = min_t(size_t, count, PAGE_SIZE);
struct kernfs_open_file *of = kernfs_of(iocb->ki_filp);
ssize_t len = min_t(size_t, iov_iter_count(iter), PAGE_SIZE);
const struct kernfs_ops *ops;
char *buf;
@ -210,7 +210,7 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
of->event = atomic_read(&of->kn->attr.open->event);
ops = kernfs_ops(of->kn);
if (ops->read)
len = ops->read(of, buf, len, *ppos);
len = ops->read(of, buf, len, iocb->ki_pos);
else
len = -EINVAL;
@ -220,12 +220,12 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
if (len < 0)
goto out_free;
if (copy_to_user(user_buf, buf, len)) {
if (copy_to_iter(buf, len, iter) != len) {
len = -EFAULT;
goto out_free;
}
*ppos += len;
iocb->ki_pos += len;
out_free:
if (buf == of->prealloc_buf)
@ -235,31 +235,14 @@ static ssize_t kernfs_file_direct_read(struct kernfs_open_file *of,
return len;
}
/**
* kernfs_fop_read - kernfs vfs read callback
* @file: file pointer
* @user_buf: data to write
* @count: number of bytes
* @ppos: starting offset
*/
static ssize_t kernfs_fop_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
static ssize_t kernfs_fop_read_iter(struct kiocb *iocb, struct iov_iter *iter)
{
struct kernfs_open_file *of = kernfs_of(file);
if (of->kn->flags & KERNFS_HAS_SEQ_SHOW)
return seq_read(file, user_buf, count, ppos);
else
return kernfs_file_direct_read(of, user_buf, count, ppos);
if (kernfs_of(iocb->ki_filp)->kn->flags & KERNFS_HAS_SEQ_SHOW)
return seq_read_iter(iocb, iter);
return kernfs_file_read_iter(iocb, iter);
}
/**
* kernfs_fop_write - kernfs vfs write callback
* @file: file pointer
* @user_buf: data to write
* @count: number of bytes
* @ppos: starting offset
*
/*
* Copy data in from userland and pass it to the matching kernfs write
* operation.
*
@ -269,20 +252,18 @@ static ssize_t kernfs_fop_read(struct file *file, char __user *user_buf,
* modify only the the value you're changing, then write entire buffer
* back.
*/
static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
static ssize_t kernfs_fop_write_iter(struct kiocb *iocb, struct iov_iter *iter)
{
struct kernfs_open_file *of = kernfs_of(file);
struct kernfs_open_file *of = kernfs_of(iocb->ki_filp);
ssize_t len = iov_iter_count(iter);
const struct kernfs_ops *ops;
ssize_t len;
char *buf;
if (of->atomic_write_len) {
len = count;
if (len > of->atomic_write_len)
return -E2BIG;
} else {
len = min_t(size_t, count, PAGE_SIZE);
len = min_t(size_t, len, PAGE_SIZE);
}
buf = of->prealloc_buf;
@ -293,7 +274,7 @@ static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
if (!buf)
return -ENOMEM;
if (copy_from_user(buf, user_buf, len)) {
if (copy_from_iter(buf, len, iter) != len) {
len = -EFAULT;
goto out_free;
}
@ -312,7 +293,7 @@ static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
ops = kernfs_ops(of->kn);
if (ops->write)
len = ops->write(of, buf, len, *ppos);
len = ops->write(of, buf, len, iocb->ki_pos);
else
len = -EINVAL;
@ -320,7 +301,7 @@ static ssize_t kernfs_fop_write(struct file *file, const char __user *user_buf,
mutex_unlock(&of->mutex);
if (len > 0)
*ppos += len;
iocb->ki_pos += len;
out_free:
if (buf == of->prealloc_buf)
@ -673,7 +654,7 @@ static int kernfs_fop_open(struct inode *inode, struct file *file)
/*
* Write path needs to atomic_write_len outside active reference.
* Cache it in open_file. See kernfs_fop_write() for details.
* Cache it in open_file. See kernfs_fop_write_iter() for details.
*/
of->atomic_write_len = ops->atomic_write_len;
@ -960,14 +941,16 @@ void kernfs_notify(struct kernfs_node *kn)
EXPORT_SYMBOL_GPL(kernfs_notify);
const struct file_operations kernfs_file_fops = {
.read = kernfs_fop_read,
.write = kernfs_fop_write,
.read_iter = kernfs_fop_read_iter,
.write_iter = kernfs_fop_write_iter,
.llseek = generic_file_llseek,
.mmap = kernfs_fop_mmap,
.open = kernfs_fop_open,
.release = kernfs_fop_release,
.poll = kernfs_fop_poll,
.fsync = noop_fsync,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
/**

7
fs/proc/proc_sysctl.c
View File

@ -1770,6 +1770,12 @@ static int process_sysctl_arg(char *param, char *val,
return 0;
}
if (!val)
return -EINVAL;
len = strlen(val);
if (len == 0)
return -EINVAL;
/*
* To set sysctl options, we use a temporary mount of proc, look up the
* respective sys/ file and write to it. To avoid mounting it when no
@ -1811,7 +1817,6 @@ static int process_sysctl_arg(char *param, char *val,
file, param, val);
goto out;
}
len = strlen(val);
wret = kernel_write(file, val, len, &pos);
if (wret < 0) {
err = wret;

12
include/linux/device.h
View File

@ -609,6 +609,18 @@ static inline const char *dev_name(const struct device *dev)
return kobject_name(&dev->kobj);
}
/**
* dev_bus_name - Return a device's bus/class name, if at all possible
* @dev: struct device to get the bus/class name of
*
* Will return the name of the bus/class the device is attached to. If it is
* not attached to a bus/class, an empty string will be returned.
*/
static inline const char *dev_bus_name(const struct device *dev)
{
return dev->bus ? dev->bus->name : (dev->class ? dev->class->name : "");
}
__printf(2, 3) int dev_set_name(struct device *dev, const char *name, ...);
#ifdef CONFIG_NUMA

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