From: David Howells <dhowells@redhat.com>
To: torvalds@transmeta.com
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@zip.com.au>,
jfs-discussion@www-126.southbury.usf.ibm.com
Subject: [PATCH] rw-semaphore asm constraints patch fix
Date: Mon, 08 Apr 2002 13:43:58 +0100 [thread overview]
Message-ID: <26894.1018269838@warthog.cambridge.redhat.com> (raw)
Hi Linus,
The attached patch should fix the compile error that asm-i386/rwsem.h causes
with old gcc's whilst maintaining the asm constraints correctly.
David
diff -Nru a/include/asm-i386/rwsem.h b/include/asm-i386/rwsem.h
--- a/include/asm-i386/rwsem.h Fri Apr 5 16:56:35 2002
+++ b/include/asm-i386/rwsem.h Fri Apr 5 16:56:35 2002
@@ -164,7 +164,7 @@
" jmp 1b\n"
LOCK_SECTION_END
"# ending __up_read\n"
- : /*"+m"(sem->count),*/ "+d"(tmp)
- : "a"(sem)
+ : "=m"(sem->count), "=d"(tmp)
+ : "0"(sem->count), "1"(tmp), "a"(sem)
: "memory", "cc");
}
next reply other threads:[~2002-04-08 12:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-08 12:43 David Howells [this message]
2002-04-08 15:59 ` Linus Torvalds
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