From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oren Laadan Subject: [C/R v20][PATCH 88/96] use correct ccr bit for syscall error status Date: Wed, 17 Mar 2010 12:09:16 -0400 Message-ID: <1268842164-5590-89-git-send-email-orenl@cs.columbia.edu> References: <1268842164-5590-1-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-2-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-3-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-4-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-5-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-6-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-7-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-8-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-9-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-10-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-11-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-12-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-13-git-send-email-orenl@cs.columbia.edu> 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<1268842164-5590-65-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-66-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-67-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-68-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-69-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-70-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-71-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-72-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-73-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-74-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-75-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-76-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-77-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-78-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-79-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-80-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-81-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-82-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-83-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-84-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-85-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-86-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-87-git-send-email-orenl@cs.columbia.edu> <1268842164-5590-88-git-send-email-orenl@cs.columbia.edu> Return-path: In-Reply-To: <1268842164-5590-88-git-send-email-orenl@cs.columbia.edu> Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, Serge Hallyn , Ingo Molnar , containers@lists.linux-foundation.org, Nathan Lynch List-Id: linux-api@vger.kernel.org From: Nathan Lynch The powerpc implementations of syscall_get_error and syscall_set_return_value should use CCR0:S0 (0x10000000) for testing and setting syscall error status. Fortunately these APIs don't seem to be used at the moment. Signed-off-by: Nathan Lynch Acked-by: Serge E. Hallyn --- arch/powerpc/include/asm/syscall.h | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/syscall.h b/arch/powerpc/include/asm/syscall.h index efa7f0b..23913e9 100644 --- a/arch/powerpc/include/asm/syscall.h +++ b/arch/powerpc/include/asm/syscall.h @@ -30,7 +30,7 @@ static inline void syscall_rollback(struct task_struct *task, static inline long syscall_get_error(struct task_struct *task, struct pt_regs *regs) { - return (regs->ccr & 0x1000) ? -regs->gpr[3] : 0; + return (regs->ccr & 0x10000000) ? -regs->gpr[3] : 0; } static inline long syscall_get_return_value(struct task_struct *task, @@ -44,10 +44,10 @@ static inline void syscall_set_return_value(struct task_struct *task, int error, long val) { if (error) { - regs->ccr |= 0x1000L; + regs->ccr |= 0x10000000L; regs->gpr[3] = -error; } else { - regs->ccr &= ~0x1000L; + regs->ccr &= ~0x10000000L; regs->gpr[3] = val; } } -- 1.6.3.3 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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