diff options
| author | Steven Rostedt <rostedt@goodmis.org> | 2008-11-25 05:42:37 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-11-25 14:38:03 (GMT) |
| commit | 5cf02b7bafddb6c3c16ddfb23d3ce187f70528ba (patch) | |
| tree | 282326f87040c4ad3a55cfdbe64f1ae8a6fc13f8 /arch/x86/boot | |
| parent | 86bbc2c235e500957b213e7e64ce2e0ccb8bc131 (diff) | |
| download | linux-5cf02b7bafddb6c3c16ddfb23d3ce187f70528ba.tar.xz | |
x86: use limited register constraint for setnz
Impact: build fix with certain compilers
GCC can decide to use %dil when "r" is used, which is not valid for
setnz.
This bug was brought out by Stephen Rothwell's merging of the
branch tracer into linux-next.
[ Thanks to Uros Bizjak for recommending 'q' over 'Q' ]
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/tty.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/boot/tty.c b/arch/x86/boot/tty.c index 0be77b3..7e8e8b2 100644 --- a/arch/x86/boot/tty.c +++ b/arch/x86/boot/tty.c @@ -74,7 +74,7 @@ static int kbd_pending(void) { u8 pending; asm volatile("int $0x16; setnz %0" - : "=rm" (pending) + : "=qm" (pending) : "a" (0x0100)); return pending; } |