As observed with clang: fs/fat/fat_write.c:1024:13: warning: comparison of constant 128 with expression of type 'char' is always false [-Wtautological-constant-out-of-range-compare] if ((0x80 <= c) && (c <= 0xff)) ~~~~ ^ ~ fs/fat/fat_write.c:1024:25: warning: comparison of constant 255 with expression of type 'char' is always true [-Wtautological-constant-out-of-range-compare] if ((0x80 <= c) && (c <= 0xff)) ~ ^ ~~~~

Fixes: 25bb9dab14f4 ("fs: fat: check and normalize file name") Cc: AKASHI Takahiro takahiro.akashi@linaro.org Cc: Alexander Graf agraf@suse.de Signed-off-by: Tom Rini trini@konsulko.com --- fs/fat/fat_write.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index fc211e74bc69..98fe6b2b4ecc 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -1005,7 +1005,7 @@ again: static int normalize_longname(char *l_filename, const char *filename) { const char *p, legal[] = "!#$%&'()-.@^`_{}~"; - char c; + unsigned char c; int name_len;

/* Check that the filename is valid */