Commit-ID: f9adc23ee91e6f561bb70c6147d8d45bd164d62f Gitweb: https://git.kernel.org/tip/f9adc23ee91e6f561bb70c6147d8d45bd164d62f Author: Vasily Averin <v...@virtuozzo.com> AuthorDate: Tue, 16 Jul 2019 09:22:03 +0300 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Mon, 22 Jul 2019 11:20:10 +0200
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: Vasily Averin <v...@virtuozzo.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Acked-by: Arnd Bergmann <a...@arndb.de> Link: https://lkml.kernel.org/r/12bdaca8-99eb-e576-f842-5970ab1d6...@virtuozzo.com --- include/asm-generic/futex.h | 21 +-------------------- 1 file changed, 1 insertion(+), 20 deletions(-) diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h index 8666fe7f35d7..02970b11f71f 100644 --- a/include/asm-generic/futex.h +++ b/include/asm-generic/futex.h @@ -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
