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authorOlof Johansson <olof@lixom.net>2008-04-28 02:16:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-28 08:58:47 -0700
commit9f354858b8ea29e969b82dd96caea376157d76ca (patch)
treeb76f572fe64c80578f23fbd754867a838ebd5fa9
parent0607fd02587a6b4b086dc746d63123c1f284db68 (diff)
fatfs: fix build warning with 64k PAGE_SIZE
Annoying gcc warning: fs/fat/inode.c: In function 'fat_fill_super': fs/fat/inode.c:1222: warning: comparison is always false due to limited range of data type Change it to compare with 4K instead of PAGE_CACHE_SIZE, as suggested by OGAWA-san. [FAT spec says: logical_sector_size should be 512, 1024, 2048 4096] So, at least for now, we limit it to 4096. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/fat/inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index bf918929e79..5f522a55b59 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1226,7 +1226,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
le16_to_cpu(get_unaligned((__le16 *)&b->sector_size));
if (!is_power_of_2(logical_sector_size)
|| (logical_sector_size < 512)
- || (PAGE_CACHE_SIZE < logical_sector_size)) {
+ || (logical_sector_size > 4096)) {
if (!silent)
printk(KERN_ERR "FAT: bogus logical sector size %u\n",
logical_sector_size);