Evolution-X-Devices/kernel_xiaomi_raphael
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

futex: Cleanup generic SMP variant of arch_futex_atomic_op_inuser()

Browse Source 
The generic SMP variant of arch_futex_atomic_op_inuser() returns always
-ENOSYS so the switch case and surrounding code are pointless. Remove it
and just return -ENOSYS.

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/12bdaca8-99eb-e576-f842-5970ab1d6a92@virtuozzo.com

Signed-off-by: Danny Lin <danny@kdrag0n.dev>
Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>
This commit is contained in:
Vasily Averin
2019-07-16 09:22:03 +03:00
committed by UtsavBalar1231
parent 9a76102b2c
commit 1ecb74eef6
1 changed files with 1 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
include/asm-generic/futex.h
View File

@@ -118,26 +118,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
static inline int
arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
{
int oldval = 0, ret;
pagefault_disable();
switch (op) {
case FUTEX_OP_SET:
case FUTEX_OP_ADD:
case FUTEX_OP_OR:
case FUTEX_OP_ANDN:
case FUTEX_OP_XOR:
default:
ret = -ENOSYS;
}
pagefault_enable();
if (!ret)
*oval = oldval;
return ret;
return -ENOSYS;
}
static inline int