From: yu kuai Date: Fri, 13 Dec 2019 12:12:53 +0000 (+0800) Subject: x86/process: Remove set but not used variables prev and next X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=27353d5785bca61bb49cfd7c78e14f1d21e66ec5;p=linux.git x86/process: Remove set but not used variables prev and next Remove two unused variables: arch/x86/kernel/process.c: In function ‘__switch_to_xtra’: arch/x86/kernel/process.c:618:31: warning: variable ‘next’ set but not used [-Wunused-but-set-variable] 618 | struct thread_struct *prev, *next; | ^~~~ arch/x86/kernel/process.c:618:24: warning: variable ‘prev’ set but not used [-Wunused-but-set-variable] 618 | struct thread_struct *prev, *next; | They are never used and so can be removed. Signed-off-by: yu kuai Signed-off-by: Borislav Petkov Cc: Andy Lutomirski Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Thomas Gleixner Cc: x86-ml Cc: yi.zhang@huawei.com Cc: zhengbin13@huawei.com Link: https://lkml.kernel.org/r/20191213121253.10072-1-yukuai3@huawei.com --- diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 61e93a3189836..839b5244e3b7e 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -615,12 +615,8 @@ void speculation_ctrl_update_current(void) void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p) { - struct thread_struct *prev, *next; unsigned long tifp, tifn; - prev = &prev_p->thread; - next = &next_p->thread; - tifn = READ_ONCE(task_thread_info(next_p)->flags); tifp = READ_ONCE(task_thread_info(prev_p)->flags);