[PATCH] UDF: Fix compiler warning

From: George G. Davis
Date: Tue Feb 22 2011 - 14:04:29 EST


From: Dirk Behme <dirk.behme@xxxxxxxxxxxx>

Fix compiler warning

fs/udf/balloc.c: In function 'udf_bitmap_new_block':
fs/udf/balloc.c:273: warning: passing argument 1 of '_find_next_bit_le' from incompatible pointer type
fs/udf/balloc.c:285: warning: passing argument 1 of '_find_next_bit_le' from incompatible pointer type
fs/udf/balloc.c:311: warning: passing argument 1 of '_find_next_bit_le' from incompatible pointer type
fs/udf/balloc.c:325: warning: passing argument 1 of '_find_next_bit_le' from incompatible pointer type

The main fix is to add a cast in ext2_find_next_bit().

As all other usage locations of udf_find_next_one_bit()
directly use bh->b_data (which is a char *), the useless
(char *) cast in line 311 can be removed, too.

Signed-off-by: Dirk Behme <dirk.behme@xxxxxxxxxxxx>
Signed-off-by: George G. Davis <gdavis@xxxxxxxxxx>
---
This fixes a long standing ARM Linux kernel UDF_FS build warning [1].

[1] http://armlinux.simtec.co.uk/kautobuild/2.6.37/warnings.html#modules

fs/udf/balloc.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index 306ee39..8994dd0 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -31,7 +31,7 @@
#define udf_set_bit(nr, addr) ext2_set_bit(nr, addr)
#define udf_test_bit(nr, addr) ext2_test_bit(nr, addr)
#define udf_find_next_one_bit(addr, size, offset) \
- ext2_find_next_bit(addr, size, offset)
+ ext2_find_next_bit((unsigned long *)(addr), size, offset)

static int read_block_bitmap(struct super_block *sb,
struct udf_bitmap *bitmap, unsigned int block,
@@ -297,7 +297,7 @@ repeat:
break;
}
} else {
- bit = udf_find_next_one_bit((char *)bh->b_data,
+ bit = udf_find_next_one_bit(bh->b_data,
sb->s_blocksize << 3,
group_start << 3);
if (bit < sb->s_blocksize << 3)
--
1.7.4

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