forked from Minki/linux
is_power_of_2: ufs/super.c
Replace (n & (n-1)) with is_power_of_2 Signed-off-by: vignesh babu <vignesh.babu@wipro.com> Acked-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -87,6 +87,7 @@
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#include <linux/smp_lock.h>
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#include <linux/smp_lock.h>
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#include <linux/buffer_head.h>
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#include <linux/buffer_head.h>
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#include <linux/vfs.h>
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#include <linux/vfs.h>
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#include <linux/log2.h>
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#include "swab.h"
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#include "swab.h"
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#include "util.h"
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#include "util.h"
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@ -854,7 +855,7 @@ magic_found:
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uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask);
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uspi->s_fmask = fs32_to_cpu(sb, usb1->fs_fmask);
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uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift);
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uspi->s_fshift = fs32_to_cpu(sb, usb1->fs_fshift);
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if (uspi->s_fsize & (uspi->s_fsize - 1)) {
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if (!is_power_of_2(uspi->s_fsize)) {
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printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n",
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printk(KERN_ERR "ufs_read_super: fragment size %u is not a power of 2\n",
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uspi->s_fsize);
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uspi->s_fsize);
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goto failed;
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goto failed;
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@ -869,7 +870,7 @@ magic_found:
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uspi->s_fsize);
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uspi->s_fsize);
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goto failed;
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goto failed;
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}
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}
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if (uspi->s_bsize & (uspi->s_bsize - 1)) {
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if (!is_power_of_2(uspi->s_bsize)) {
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printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n",
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printk(KERN_ERR "ufs_read_super: block size %u is not a power of 2\n",
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uspi->s_bsize);
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uspi->s_bsize);
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goto failed;
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goto failed;
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