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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-23 19:32:10 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-23 19:32:10 +0100 |
| commit | 07171da26424bcdb5d8c4571544c8c7b11137d34 (patch) | |
| tree | 9229ed6774ab49e43ce1525710bc2be5863e4937 /arch/arm/kernel/entry-common.S | |
| parent | Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff) | |
| parent | Merge branches 'fixes', 'misc' and 'spectre' into for-next (diff) | |
| download | linux-dev-07171da26424bcdb5d8c4571544c8c7b11137d34.tar.xz linux-dev-07171da26424bcdb5d8c4571544c8c7b11137d34.zip | |
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
"The main item in this pull request are the Spectre variant 1.1 fixes
from Julien Thierry.
A few other patches to improve various areas, and removal of some
obsolete mcount bits and a redundant kbuild conditional"
* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
ARM: 8797/1: spectre-v1.1: harden __copy_to_user
ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization
ARM: 8795/1: spectre-v1.1: use put_user() for __put_user()
ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limit
ARM: 8793/1: signal: replace __put_user_error with __put_user
ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user()
ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state
ARM: 8790/1: signal: always use __copy_to_user to save iwmmxt context
ARM: 8789/1: signal: copy registers using __copy_to_user()
ARM: 8801/1: makefile: use ARMv3M mode for RiscPC
ARM: 8800/1: use choice for kernel unwinders
ARM: 8798/1: remove unnecessary KBUILD_SRC ifeq conditional
ARM: 8788/1: ftrace: remove old mcount support
ARM: 8786/1: Debug kernel copy by printing
Diffstat (limited to 'arch/arm/kernel/entry-common.S')
| -rw-r--r-- | arch/arm/kernel/entry-common.S | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 746565a876dc..0465d65d23de 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -296,16 +296,15 @@ __sys_trace: cmp scno, #-1 @ skip the syscall? bne 2b add sp, sp, #S_OFF @ restore stack - b ret_slow_syscall -__sys_trace_return: - str r0, [sp, #S_R0 + S_OFF]! @ save returned r0 +__sys_trace_return_nosave: + enable_irq_notrace mov r0, sp bl syscall_trace_exit b ret_slow_syscall -__sys_trace_return_nosave: - enable_irq_notrace +__sys_trace_return: + str r0, [sp, #S_R0 + S_OFF]! @ save returned r0 mov r0, sp bl syscall_trace_exit b ret_slow_syscall |