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Message-Id: <1405951409-16953-36-git-send-email-richard@sigma-star.at> Date: Mon, 21 Jul 2014 16:03:21 +0200 From: Richard Weinberger <richard@...ma-star.at> To: akpm@...ux-foundation.org Cc: linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, Richard Weinberger <richard@....at>, rkuo@...eaurora.org, linux-hexagon@...r.kernel.org Subject: [PATCH 35/43] hexagon: Use sigsp() From: Richard Weinberger <richard@....at> Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger <richard@....at> --- arch/hexagon/kernel/signal.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index 6525358..eadd70e 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -36,18 +36,10 @@ struct rt_sigframe { struct ucontext uc; }; -static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, +static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, size_t frame_size) { - unsigned long sp = regs->r29; - - /* check if we would overflow the alt stack */ - if (on_sig_stack(sp) && !likely(on_sig_stack(sp - frame_size))) - return (void __user __force *)-1UL; - - /* Switch to signal stack if appropriate */ - if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags(sp) == 0)) - sp = current->sas_ss_sp + current->sas_ss_size; + unsigned long sp = sigsp(regs->r29, ksig); return (void __user *)((sp - frame_size) & ~(sizeof(long long) - 1)); } @@ -119,7 +111,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct rt_sigframe __user *frame; struct hexagon_vdso *vdso = current->mm->context.vdso; - frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe)); + frame = get_sigframe(ksig, regs, sizeof(struct rt_sigframe)); if (!access_ok(VERIFY_WRITE, frame, sizeof(struct rt_sigframe))) return -EFAULT; -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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