linux/arch
Mark Rutland ad2daa85bd arm64: entry32: remove pointless register assignment
We currently set x27 in compat_sys_sigreturn_wrapper and
compat_sys_rt_sigreturn_wrapper, similarly to what we do with r8/why on
32-bit ARM, in an attempt to prevent sigreturns from being restarted.

However, on arm64 we have always used pt_regs::syscallno for syscall
restarting (for both native and compat tasks), and x27 is never
inspected again before being overwritten in kernel_exit.

This patch removes the pointless register assignments.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-07-10 16:47:13 +01:00
..
alpha TTY/Serial driver patches for 4.2-rc1 2015-06-26 15:53:22 -07:00
arc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
arm - hwspinlock core DT support from Suman Anna 2015-07-03 14:52:25 -07:00
arm64 arm64: entry32: remove pointless register assignment 2015-07-10 16:47:13 +01:00
avr32 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
blackfin Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
c6x Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
cris Replace module_init with equivalent device_initcall in non modules. 2015-07-02 10:30:48 -07:00
frv Fix up implicit <module.h> users that will break later. 2015-07-02 10:25:22 -07:00
h8300 h8300: Always build dtb 2015-06-23 13:36:00 +09:00
hexagon Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
ia64 remove some boot noise from a now-invalid check that pages are reserved 2015-07-02 14:46:15 -07:00
m32r Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
m68k Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-07-01 15:19:35 -07:00
metag Merge branch 'akpm' (patches from Andrew) 2015-06-26 09:52:05 -07:00
microblaze Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
mips Devicetree changes for v4.2 2015-07-01 19:40:18 -07:00
mn10300 Replace module_init with equivalent device_initcall in non modules. 2015-07-02 10:30:48 -07:00
nios2 nios2 update for v4.2 2015-07-03 12:22:49 -07:00
openrisc Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
parisc Replace module_init with equivalent device_initcall in non modules. 2015-07-02 10:30:48 -07:00
powerpc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
score Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block 2015-06-25 15:22:36 -07:00
sh Replace module_init with equivalent device_initcall in non modules. 2015-07-02 10:30:48 -07:00
sparc Merge branch 'akpm' (patches from Andrew) 2015-06-26 09:52:05 -07:00
tile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-07-04 19:36:06 -07:00
um Minor merge needed, due to function move. 2015-07-01 10:49:25 -07:00
unicore32 arch/unicore32/kernel/fpu-ucf64.c: remove unnecessary KERN_ERR 2015-06-30 19:44:59 -07:00
x86 platform-drivers-x86 for 4.2-2 2015-07-05 10:54:09 -07:00
xtensa Replace module_init with equivalent device_initcall in non modules. 2015-07-02 10:30:48 -07:00
.gitignore
Kconfig clone: support passing tls argument via C rather than pt_regs magic 2015-06-25 17:00:38 -07:00