From: Bryan Wu Date: Sat, 3 Jan 2009 01:47:45 +0000 (-0500) Subject: fat: fix unaligned errors X-Git-Tag: v2009.03-rc1~175 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7e4b9b4f6f43838fad3ad72c029a3d7fc7c7d48c;p=platform%2Fkernel%2Fu-boot.git fat: fix unaligned errors A couple of buffers in the fat code are declared as an array of bytes. But it is then cast up to a structure with 16bit and 32bit members. Since GCC assumes structure alignment here, we have to force the buffers to be aligned according to the structure usage. Signed-off-by: Bryan Wu Signed-off-by: Mike Frysinger --- diff --git a/fs/fat/fat.c b/fs/fat/fat.c index a9dde7d..28c7805 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -434,7 +434,8 @@ slot2str(dir_slot *slotptr, char *l_name, int *idx) * into 'retdent' * Return 0 on success, -1 otherwise. */ -__u8 get_vfatname_block[MAX_CLUSTSIZE]; +__attribute__ ((__aligned__(__alignof__(dir_entry)))) +__u8 get_vfatname_block[MAX_CLUSTSIZE]; static int get_vfatname(fsdata *mydata, int curclust, __u8 *cluster, dir_entry *retdent, char *l_name) @@ -520,6 +521,7 @@ mkcksum(const char *str) * Get the directory entry associated with 'filename' from the directory * starting at 'startsect' */ +__attribute__ ((__aligned__(__alignof__(dir_entry)))) __u8 get_dentfromdir_block[MAX_CLUSTSIZE]; static dir_entry *get_dentfromdir (fsdata * mydata, int startsect, char *filename, dir_entry * retdent, @@ -725,8 +727,8 @@ read_bootsectandvi(boot_sector *bs, volume_info *volinfo, int *fatsize) return -1; } - -__u8 do_fat_read_block[MAX_CLUSTSIZE]; /* Block buffer */ +__attribute__ ((__aligned__(__alignof__(dir_entry)))) +__u8 do_fat_read_block[MAX_CLUSTSIZE]; long do_fat_read (const char *filename, void *buffer, unsigned long maxsize, int dols)