From c3084e7275c4019262330de3c61c3b11b45af94c Mon Sep 17 00:00:00 2001 From: Mao Minkai Date: Tue, 6 Sep 2022 16:39:04 +0800 Subject: [PATCH] sw64: remove useless local r26 in setup_rt_frame() Sunway inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I5XTGY -------------------------------- Signed-off-by: Mao Minkai Reviewed-by: He Sheng Signed-off-by: Gu Zitao --- arch/sw_64/kernel/signal.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/arch/sw_64/kernel/signal.c b/arch/sw_64/kernel/signal.c index 32c9484d2aa2..b80cf0e56224 100644 --- a/arch/sw_64/kernel/signal.c +++ b/arch/sw_64/kernel/signal.c @@ -261,7 +261,7 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) { - unsigned long oldsp, r26, err = 0; + unsigned long oldsp, err = 0; struct rt_sigframe __user *frame; oldsp = rdusp(); @@ -283,13 +283,8 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) if (err) return -EFAULT; - /* Set up to return from userspace. If provided, use a stub - * already in userspace. - */ - r26 = VDSO_SYMBOL(current->mm->context.vdso, rt_sigreturn); - /* "Return" to the handler */ - regs->r26 = r26; + regs->r26 = VDSO_SYMBOL(current->mm->context.vdso, rt_sigreturn); regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler; regs->r16 = ksig->sig; /* a0: signal number */ if (ksig->ka.sa.sa_flags & SA_SIGINFO) { -- GitLab