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FromAndi Kleen <>
Subject[PATCH x86 for review III] [1/29] i386: avoid gcc extension
DateMon, 12 Feb 2007 17:51:20 +0100 (CET)

From: Randy Dunlap <randy.dunlap@oracle.com>

setcc() in math-emu is written as a gcc extension statement expression
macro that returns a value. However, it's not used that way and it's not
needed like that, so just make it a do-while non-extension macro so that we
don't use an extension when it's not needed.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
arch/i386/math-emu/status_w.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
Index: linux/arch/i386/math-emu/status_w.h
===================================================================
--- linux.orig/arch/i386/math-emu/status_w.h
+++ linux/arch/i386/math-emu/status_w.h
@@ -48,9 +48,11 @@

#define status_word() \
((partial_status & ~SW_Top & 0xffff) | ((top << SW_Top_Shift) & SW_Top))
-#define setcc(cc) ({ \
- partial_status &= ~(SW_C0|SW_C1|SW_C2|SW_C3); \
- partial_status |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3); })
+static inline void setcc(int cc)
+{
+ partial_status &= ~(SW_C0|SW_C1|SW_C2|SW_C3);
+ partial_status |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3);
+}

#ifdef PECULIAR_486
/* Default, this conveys no information, but an 80486 does it. */
-
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