Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932760AbaGUOGU (ORCPT ); Mon, 21 Jul 2014 10:06:20 -0400 Received: from mail.sigma-star.at ([95.130.255.111]:14389 "EHLO mail.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932638AbaGUOEZ (ORCPT ); Mon, 21 Jul 2014 10:04:25 -0400 From: Richard Weinberger To: akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Richard Weinberger , Ralf Baechle , linux-mips@linux-mips.org Subject: [PATCH 40/43] mips: Use sigsp() Date: Mon, 21 Jul 2014 16:03:26 +0200 Message-Id: <1405951409-16953-41-git-send-email-richard@sigma-star.at> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1405951409-16953-1-git-send-email-richard@sigma-star.at> References: <1405951409-16953-1-git-send-email-richard@sigma-star.at> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Richard Weinberger Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger --- arch/mips/kernel/signal.c | 10 ++++------ arch/mips/kernel/signal32.c | 4 ++-- arch/mips/kernel/signal_n32.c | 2 +- 3 files changed, 7 insertions(+), 9 deletions(-) diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index da4baac..1d57605 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -280,7 +280,7 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) return err; } -void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, +void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, size_t frame_size) { unsigned long sp; @@ -295,9 +295,7 @@ void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, */ sp -= 32; - /* This is the X/Open sanctioned signal stack switching. */ - if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0)) - sp = current->sas_ss_sp + current->sas_ss_size; + sp = sigsp(sp, ksig); return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? ~(cpu_icache_line_size()-1) : ALMASK)); } @@ -434,7 +432,7 @@ static int setup_frame(void *sig_return, struct ksignal *ksig, struct sigframe __user *frame; int err = 0; - 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; @@ -473,7 +471,7 @@ static int setup_rt_frame(void *sig_return, struct ksignal *ksig, struct rt_sigframe __user *frame; int err = 0; - 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; diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index eb8d0e2..d69179c 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -496,7 +496,7 @@ static int setup_frame_32(void *sig_return, struct ksignal *ksig, struct sigframe32 __user *frame; int err = 0; - 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; @@ -536,7 +536,7 @@ static int setup_rt_frame_32(void *sig_return, struct ksignal *ksig, struct rt_sigframe32 __user *frame; int err = 0; - 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; diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index 7d04f28..f1d4751 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -108,7 +108,7 @@ static int setup_rt_frame_n32(void *sig_return, struct ksignal *ksig, struct rt_sigframe_n32 __user *frame; int err = 0; - 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/