Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9974b6ea7b85a32f34f824443f47aa501c85ee8f
Commit: 9974b6ea7b85a32f34f824443f47aa501c85ee8f
Parent: 037e291cc77a4beb0379a8c74e3d82e49a476b84
Author: Robert P. J. Day <[EMAIL PROTECTED]>
AuthorDate: Wed Feb 6 01:38:42 2008 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Wed Feb 6 10:41:13 2008 -0800
rtc-s3c: Use is_power_of_2() macro for simplicity.
Use is_power_of_2() macro for simplicity.
Signed-off-by: Robert P. J. Day <[EMAIL PROTECTED]>
Signed-off-by: Alessandro Zummo <[EMAIL PROTECTED]>
Cc: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/rtc/rtc-s3c.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index e2041b4..86766f1 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -20,6 +20,7 @@
#include <linux/rtc.h>
#include <linux/bcd.h>
#include <linux/clk.h>
+#include <linux/log2.h>
#include <asm/hardware.h>
#include <asm/uaccess.h>
@@ -309,9 +310,7 @@ static int s3c_rtc_ioctl(struct device *dev,
break;
case RTC_IRQP_SET:
- /* check for power of 2 */
-
- if ((arg & (arg-1)) != 0 || arg < 1) {
+ if (!is_power_of_2(arg)) {
ret = -EINVAL;
goto exit;
}
-
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