From: Karel Zak <kzak@redhat.com>
Date: Fri, 9 Jun 2017 09:11:38 +0000 (+0200)
Subject: libblkid: (vfat) add more debug messages
X-Git-Tag: v2.31-rc1~329
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bff78d701d73dcd77d1631433d0d377917c2bfba;p=thirdparty%2Futil-linux.git

libblkid: (vfat) add more debug messages

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/libblkid/src/superblocks/vfat.c b/libblkid/src/superblocks/vfat.c
index a8186358be..0cdd2bac7b 100644
--- a/libblkid/src/superblocks/vfat.c
+++ b/libblkid/src/superblocks/vfat.c
@@ -197,8 +197,10 @@ static int fat_valid_superblock(blkid_probe pr,
 		 * FAT-like pseudo-header.
 		 */
 		if ((memcmp(ms->ms_magic, "JFS     ", 8) == 0) ||
-		    (memcmp(ms->ms_magic, "HPFS    ", 8) == 0))
+		    (memcmp(ms->ms_magic, "HPFS    ", 8) == 0)) {
+			DBG(LOWPROBE, ul_debug("\tJFS/HPFS detected"));
 			return 0;
+		}
 	}
 
 	/* fat counts(Linux kernel expects at least 1 FAT table) */
@@ -252,11 +254,15 @@ static int fat_valid_superblock(blkid_probe pr,
 		 * etc..) before MBR. Let's make sure that there is no MBR with
 		 * usable partition. */
 		unsigned char *buf = (unsigned char *) ms;
+
 		if (mbr_is_valid_magic(buf)) {
 			struct dos_partition *p0 = mbr_get_partition(buf, 0);
+
 			if (dos_partition_get_size(p0) != 0 &&
-			    (p0->boot_ind == 0 || p0->boot_ind == 0x80))
+			    (p0->boot_ind == 0 || p0->boot_ind == 0x80)) {
+				DBG(LOWPROBE, ul_debug("\tMBR detected"));
 				return 0;
+			}
 		}
 	}