linux-kernel - [PATCH 39/43] microblaze: Use sigsp()

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Message-Id: <1405951409-16953-40-git-send-email-richard@sigma-star.at>
Date:	Mon, 21 Jul 2014 16:03:25 +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>, monstr@...str.eu
Subject: [PATCH 39/43] microblaze: Use sigsp()

From: Richard Weinberger <richard@....at>

Use sigsp() instead of the open coded variant.

Signed-off-by: Richard Weinberger <richard@....at>
---
 arch/microblaze/kernel/signal.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c
index 83137e8..8955a38 100644
--- a/arch/microblaze/kernel/signal.c
+++ b/arch/microblaze/kernel/signal.c
@@ -145,13 +145,10 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
  * Determine which stack to use..
  */
 static inline void __user *
-get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
+get_sigframe(struct ksignal *ksig, struct pt_regs *regs, size_t frame_size)
 {
 	/* Default to using normal stack */
-	unsigned long sp = regs->r1;
-
-	if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && !on_sig_stack(sp))
-		sp = current->sas_ss_sp + current->sas_ss_size;
+	unsigned long sp = sigsp(regs->r1, ksig);
 
 	return (void __user *)((sp - frame_size) & -8UL);
 }
@@ -168,7 +165,7 @@ static int setup_rt_frame(struct ksignal *ksig, sigset_t *set,
 	pte_t *ptep;
 #endif
 
-	frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));
+	frame = get_sigframe(ksig, regs, sizeof(*frame));
 
 	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
 		return -EFAULT;
-- 
1.8.4.5

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