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authorDan Carpenter <dan.carpenter@oracle.com>2016-10-12 11:33:21 +0300
committerDavid Sterba <dsterba@suse.com>2016-10-24 18:20:29 +0200
commit9c894696f56f5d84fb5766af81bcda4a7cb9a842 (patch)
treeec9abee1550c947b9effa966fe2281e450d3797f
parentdd4b857aabbce57518f2d32d9805365d3ff34fc6 (diff)
downloadlinux-9c894696f56f5d84fb5766af81bcda4a7cb9a842.tar.bz2
Btrfs: remove some no-op casts
We cast 0 to a u8 but then because of type promotion, it's immediately cast to int back to int before we do a bitwise negate. The cast doesn't matter in this case, the code works as intended. It causes a static checker warning though so let's remove it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/extent_io.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 66a755150056..8ed05d95584a 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -5569,7 +5569,7 @@ void le_bitmap_set(u8 *map, unsigned int start, int len)
*p |= mask_to_set;
len -= bits_to_set;
bits_to_set = BITS_PER_BYTE;
- mask_to_set = ~(u8)0;
+ mask_to_set = ~0;
p++;
}
if (len) {
@@ -5589,7 +5589,7 @@ void le_bitmap_clear(u8 *map, unsigned int start, int len)
*p &= ~mask_to_clear;
len -= bits_to_clear;
bits_to_clear = BITS_PER_BYTE;
- mask_to_clear = ~(u8)0;
+ mask_to_clear = ~0;
p++;
}
if (len) {
@@ -5679,7 +5679,7 @@ void extent_buffer_bitmap_set(struct extent_buffer *eb, unsigned long start,
kaddr[offset] |= mask_to_set;
len -= bits_to_set;
bits_to_set = BITS_PER_BYTE;
- mask_to_set = ~(u8)0;
+ mask_to_set = ~0;
if (++offset >= PAGE_SIZE && len > 0) {
offset = 0;
page = eb->pages[++i];
@@ -5721,7 +5721,7 @@ void extent_buffer_bitmap_clear(struct extent_buffer *eb, unsigned long start,
kaddr[offset] &= ~mask_to_clear;
len -= bits_to_clear;
bits_to_clear = BITS_PER_BYTE;
- mask_to_clear = ~(u8)0;
+ mask_to_clear = ~0;
if (++offset >= PAGE_SIZE && len > 0) {
offset = 0;
page = eb->pages[++i];