btrfs: remove assumption about csum type form btrfs_print_data_csum_error()

btrfs_print_data_csum_error() still assumed checksums to be 32 bit in
size.  Make it size agnostic.
Reviewed-by: NNikolay Borisov <nborisov@suse.com>
Signed-off-by: NJohannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>

fs/btrfs/btrfs_inode.h

@@ -342,7 +342,7 @@ static inline void btrfs_inode_resume_unlocked_dio(struct btrfs_inode *inode)
 #define CSUM_FMT_VALUE(size, bytes)		size, bytes
 
 static inline void btrfs_print_data_csum_error(struct btrfs_inode *inode,
-		u64 logical_start, u32 csum, u32 csum_expected, int mirror_num)
+		u64 logical_start, u8 *csum, u8 *csum_expected, int mirror_num)
 {
 	struct btrfs_root *root = inode->root;
 	struct btrfs_super_block *sb = root->fs_info->super_copy;
@@ -354,16 +354,16 @@ static inline void btrfs_print_data_csum_error(struct btrfs_inode *inode,
 "csum failed root %lld ino %lld off %llu csum " CSUM_FMT " expected csum " CSUM_FMT " mirror %d",
 			root->root_key.objectid, btrfs_ino(inode),
 			logical_start,
-			CSUM_FMT_VALUE(csum_size, &csum),
-			CSUM_FMT_VALUE(csum_size, &csum_expected),
+			CSUM_FMT_VALUE(csum_size, csum),
+			CSUM_FMT_VALUE(csum_size, csum_expected),
 			mirror_num);
 	else
 		btrfs_warn_rl(root->fs_info,
 "csum failed root %llu ino %llu off %llu csum " CSUM_FMT " expected csum " CSUM_FMT " mirror %d",
 			root->root_key.objectid, btrfs_ino(inode),
 			logical_start,
-			CSUM_FMT_VALUE(csum_size, &csum),
-			CSUM_FMT_VALUE(csum_size, &csum_expected),
+			CSUM_FMT_VALUE(csum_size, csum),
+			CSUM_FMT_VALUE(csum_size, csum_expected),
 			mirror_num);
 }
 

fs/btrfs/compression.c

@@ -84,8 +84,7 @@ static int check_compressed_csum(struct btrfs_inode *inode,
 
 		if (memcmp(&csum, cb_sum, csum_size)) {
 			btrfs_print_data_csum_error(inode, disk_start,
-						    *(u32 *)csum, *(u32 *)cb_sum,
-						    cb->mirror_num);
+					csum, cb_sum, cb->mirror_num);
 			ret = -EIO;
 			goto fail;
 		}

fs/btrfs/inode.c

@@ -3225,8 +3225,8 @@ static int __readpage_endio_check(struct inode *inode,
 	kunmap_atomic(kaddr);
 	return 0;
 zeroit:
-	btrfs_print_data_csum_error(BTRFS_I(inode), start, *(u32 *)csum,
-				    *(u32 *)csum_expected, io_bio->mirror_num);
+	btrfs_print_data_csum_error(BTRFS_I(inode), start, csum, csum_expected,
+				    io_bio->mirror_num);
 	memset(kaddr + pgoff, 1, len);
 	flush_dcache_page(page);
 	kunmap_atomic(kaddr);