Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=e108cebb21316714de43767e242316c784471740
Commit: e108cebb21316714de43767e242316c784471740
Parent: b18a2db416088ad54a4bfb59c0b932be383aee83
Author: vignesh babu <[EMAIL PROTECTED]>
AuthorDate: Fri Oct 12 16:11:39 2007 +0200
Committer: Martin Schwidefsky <[EMAIL PROTECTED]>
CommitDate: Fri Oct 12 16:13:07 2007 +0200
[S390] is_power_of_2 in drivers/s390/block/dasd_int.h
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n)
Signed-off-by: vignesh babu <[EMAIL PROTECTED]>
Signed-off-by: Martin Schwidefsky <[EMAIL PROTECTED]>
Signed-off-by: Heiko Carstens <[EMAIL PROTECTED]>
---
drivers/s390/block/dasd_int.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index aeda526..d427dae 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -53,6 +53,7 @@
#include <linux/genhd.h>
#include <linux/hdreg.h>
#include <linux/interrupt.h>
+#include <linux/log2.h>
#include <asm/ccwdev.h>
#include <linux/workqueue.h>
#include <asm/debug.h>
@@ -456,7 +457,7 @@ dasd_free_chunk(struct list_head *chunk_list, void *mem)
static inline int
dasd_check_blocksize(int bsize)
{
- if (bsize < 512 || bsize > 4096 || (bsize & (bsize - 1)) != 0)
+ if (bsize < 512 || bsize > 4096 || !is_power_of_2(bsize))
return -EMEDIUMTYPE;
return 0;
}
-
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