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Commit f9adc23e authored by Vasily Averin's avatar Vasily Averin Committed by Thomas Gleixner
Browse files

futex: Cleanup generic SMP variant of arch_futex_atomic_op_inuser() 



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: default avatarVasily Averin <vvs@virtuozzo.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Link: https://lkml.kernel.org/r/12bdaca8-99eb-e576-f842-5970ab1d6a92@virtuozzo.com
parent 5f9e832c

include/asm-generic/futex.h

+1 −20
Original line number Original line Diff line number Diff line
@@ -118,26 +118,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, 
static inline int

static inline int

arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)

arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)

{

{

	int oldval = 0, ret;

	return -ENOSYS;



	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;

}

}





static inline int

static inline int