From: Qu Wenruo <wqu@suse.com>
Date: Tue, 6 Mar 2018 02:16:51 +0000 (+0800)
Subject: btrfs-progs: dump-super: Don't verify csum if csum type or size is unknown
X-Git-Tag: upstream/4.16.1~79
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=14bf2b546d1cdc4ea20304d2fb7d67d75f8a2c55;hp=4c7094e046dc7875af2e7f65eb80b256b6232fd7;p=platform%2Fupstream%2Fbtrfs-progs.git

btrfs-progs: dump-super: Don't verify csum if csum type or size is unknown

Reported-by: Ken Swenson <flat@imo.uto.moe>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/cmds-inspect-dump-super.c b/cmds-inspect-dump-super.c
index 150c2e5..85bff26 100644
--- a/cmds-inspect-dump-super.c
+++ b/cmds-inspect-dump-super.c
@@ -339,7 +339,9 @@ static void dump_superblock(struct btrfs_super_block *sb, int full)
 	printf("csum\t\t\t0x");
 	for (i = 0, p = sb->csum; i < csum_size; i++)
 		printf("%02x", p[i]);
-	if (check_csum_sblock(sb, csum_size))
+	if (csum_type != BTRFS_CSUM_TYPE_CRC32 || csum_size != BTRFS_CRC32_SIZE)
+		printf(" [UNKNOWN CSUM TYPE OR SIZE]");
+	else if (check_csum_sblock(sb, csum_size))
 		printf(" [match]");
 	else
 		printf(" [DON'T MATCH]");