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FAT_VALID_MEDIA(): remove pointless test

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The on-disk media specification field in FAT is only 8-bits, so testing for
<=0xff is pointless, and can generate a "comparison is always true due to
limited range of data type" warning.

While we're there, convert FAT_VALID_MEDIA() into a C function - the present
implementation is buggy: it generates either one or two references to its
argument.

Cc: Frank Seidel <[email protected]>
Acked-by: OGAWA Hirofumi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morton 2008-04-28 02:16:30 -07:00 • committed by Linus Torvalds
commit 73f20e58b1
2 changed files with 6 additions and 2 deletions
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2
fs/fat/inode.c
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@ -1215,7 +1215,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
*/
media = b->media;
if (!FAT_VALID_MEDIA(media)) {
if (!fat_valid_media(media)) {
if (!silent)
printk(KERN_ERR "FAT: invalid media value (0x%02x)\n",
media);