lkml.org 
[lkml]   [2008]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch 03/11] Fix __ffs_word_loop/__ffz_word_loop inlnie assembly.
From: Martin Schwidefsky <schwidefsky@de.ibm.com>

The black art of inline assemblies.. The new __ffs_word_loop/
__ffz_word_loop inline assemblies need an early clobber for the
two input/output variables.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

include/asm-s390/bitops.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

Index: quilt-2.6/include/asm-s390/bitops.h
===================================================================
--- quilt-2.6.orig/include/asm-s390/bitops.h
+++ quilt-2.6/include/asm-s390/bitops.h
@@ -472,7 +472,7 @@ static inline unsigned long __ffz_word_l
" brct %1,0b\n"
"1:\n"
#endif
- : "+a" (bytes), "+d" (size)
+ : "+&a" (bytes), "+&d" (size)
: "d" (-1UL), "a" (addr), "m" (*(addrtype *) addr)
: "cc" );
return bytes;
@@ -507,7 +507,7 @@ static inline unsigned long __ffs_word_l
" brct %1,0b\n"
"1:\n"
#endif
- : "+a" (bytes), "+a" (size)
+ : "+&a" (bytes), "+&a" (size)
: "d" (0UL), "a" (addr), "m" (*(addrtype *) addr)
: "cc" );
return bytes;
--
blue skies,
Martin.

"Reality continues to ruin my life." - Calvin.



\
 
 \ /
  Last update: 2008-02-09 13:07    [W:0.044 / U:1.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site