[PATCH 2/3] x86: ia32_signal: introduce GET_SEG() macro

From: Hiroshi Shimamoto
Date: Fri Feb 20 2009 - 22:00:35 EST


From: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx>

Impact: cleanup

introduce GET_SEG() macro like arch/x86/kernel/signal.c.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx>
---
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

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