From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] x86: ia32_signal: introduce GET_SEG() macro
Date: Fri, 20 Feb 2009 19:00:13 -0800 [thread overview]
Message-ID: <499F6E3D.1020905@ct.jp.nec.com> (raw)
In-Reply-To: <499F6DB6.3060500@ct.jp.nec.com>
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Impact: cleanup
introduce GET_SEG() macro like arch/x86/kernel/signal.c.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
arch/x86/ia32/ia32_signal.c | 14 +++++++++-----
1 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index adc63f8..8dd0903 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -192,11 +192,15 @@ asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
get_user_ex(regs->x, &sc->x); \
}
-#define COPY_SEG_CPL3(seg) { \
- unsigned short tmp; \
- get_user_ex(tmp, &sc->seg); \
- regs->seg = tmp | 3; \
-}
+#define GET_SEG(seg) ({ \
+ unsigned short tmp; \
+ get_user_ex(tmp, &sc->seg); \
+ tmp; \
+})
+
+#define COPY_SEG_CPL3(seg) do { \
+ regs->seg = GET_SEG(seg) | 3; \
+} while (0)
#define RELOAD_SEG(seg) { \
unsigned int cur, pre; \
--
1.6.1.2
next prev parent reply other threads:[~2009-02-21 3:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-21 2:57 [PATCH 1/3] x86: ia32_signal: remove unused debug code Hiroshi Shimamoto
2009-02-21 3:00 ` Hiroshi Shimamoto [this message]
2009-02-21 3:00 ` [PATCH 3/3] x86: ia32_signal: introduce {get|set}_user_seg() Hiroshi Shimamoto
2009-02-22 16:55 ` Ingo Molnar
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