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authorChristoph Lameter <cl@linux.com>2010-12-06 11:16:26 -0600
committerTejun Heo <tj@kernel.org>2010-12-17 15:07:19 +0100
commit5309665dcc1143d659d82568da8d00f0e08a58f9 (patch)
tree8c1682a7dded806c4aa942d18c856bc30eaadad5 /drivers/staging/speakup/fakekey.c
parentb76834bc1b6db0a0923eed85c81b1113021b0612 (diff)
downloadlinux-5309665dcc1143d659d82568da8d00f0e08a58f9.tar.gz
fakekey: Simplify speakup_fake_key_pressed through this_cpu_ops
The whole function can be expressed as a simple this_cpu_read() operation. The function overhead is now likely multiple times that of the single instruction that is executed in it. Sedat: fixed compile failure caused by an extra ')'. Cc: William Hubbs <w.d.hubbs@gmail.com> Cc: Sedat Dilek <sedat.dilek@gmail.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/staging/speakup/fakekey.c')
-rw-r--r--drivers/staging/speakup/fakekey.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/staging/speakup/fakekey.c b/drivers/staging/speakup/fakekey.c
index bf4ec68ac2e..1b34a877164 100644
--- a/drivers/staging/speakup/fakekey.c
+++ b/drivers/staging/speakup/fakekey.c
@@ -95,10 +95,5 @@ void speakup_fake_down_arrow(void)
*/
bool speakup_fake_key_pressed(void)
{
- bool is_pressed;
-
- is_pressed = get_cpu_var(reporting_keystroke);
- put_cpu_var(reporting_keystroke);
-
- return is_pressed;
+ return this_cpu_read(reporting_keystroke);
}