Replacing (n & (n-1)) in the context of power of 2 checks
with is_power_of_2
Signed-off-by: vignesh babu <[email protected]>
---
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index b4651e1..8bda11d 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -11,6 +11,7 @@
#include <linux/cdrom.h>
#include <linux/genhd.h>
#include <linux/nls.h>
+#include <linux/log2.h>
#include "hfs_fs.h"
#include "btree.h"
@@ -106,7 +107,7 @@ int hfs_mdb_get(struct super_block *sb)
size = min(HFS_SB(sb)->alloc_blksz, (u32)PAGE_SIZE);
/* size must be a multiple of 512 */
- while (size & (size - 1))
+ while (!is_power_of_2(size))
size -= HFS_SECTOR_SIZE;
sect = be16_to_cpu(mdb->drAlBlSt) + part_start;
/* align block size to first sector */
--
Vignesh Babu BM
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"Why is it that every time I'm with you, makes me believe in magic?"