Messages in this thread Patch in this message | | | From | Yunfeng Ye <> | Subject | [PATCH] x86/process: remove unused variable in __switch_to_xtra() | Date | Tue, 17 Dec 2019 20:09:08 +0800 |
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After the commit ecc7e37d4dad ("x86/io: Speedup schedule out of I/O bitmap user") and commit 22fe5b0439dd ("x86/ioperm: Move TSS bitmap update to exit to user work"), warning is found:
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] struct thread_struct *prev, *next; ^~~~ arch/x86/kernel/process.c:618:24: warning: variable ‘prev’ set but not used [-Wunused-but-set-variable] struct thread_struct *prev, *next; ^~~~ Fix this by removing the unused variable @prev and @next;
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> --- arch/x86/kernel/process.c | 4 ---- 1 file changed, 4 deletions(-)
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 61e93a318983..839b5244e3b7 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);
-- 2.7.4
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