[PATCH 2/2] btrfs-progs: fix a variable shadowing when enabling experimental features

[Qu Wenruo <wqu@suse.com>]

There is another variable shadowing problem which can only be exposed
if experimental features are enabled.

Inside the branch of BTRFS_PRINT_TREE_CSUM_HEADERS, we declare another
local variable @csum, shadowing the @csum of print_header_info(), which
is only declared when experimental features are enabled.

Just rename the @csum to @tree_csum to avoid the problem.

Signed-off-by: Qu Wenruo <wqu@suse.com>
---
 kernel-shared/print-tree.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel-shared/print-tree.c b/kernel-shared/print-tree.c
index 8511cb1bfd6c..6625b1b6aa80 100644
--- a/kernel-shared/print-tree.c
+++ b/kernel-shared/print-tree.c
@@ -1271,12 +1271,12 @@ static void print_header_info(struct extent_buffer *eb, unsigned int mode)
 	printf("\n");
 	if (fs_info && (mode & BTRFS_PRINT_TREE_CSUM_HEADERS)) {
 		char *tmp = csum_str;
-		u8 *csum = (u8 *)(eb->data + offsetof(struct btrfs_header, csum));
+		u8 *tree_csum = (u8 *)(eb->data + offsetof(struct btrfs_header, csum));
 
 		strcpy(csum_str, " csum 0x");
 		tmp = csum_str + strlen(csum_str);
 		for (i = 0; i < csum_size; i++) {
-			sprintf(tmp, "%02x", csum[i]);
+			sprintf(tmp, "%02x", tree_csum[i]);
 			tmp++;
 			tmp++;
 		}
-- 
2.42.0