[U-Boot] [PATCH] fs/ext4: caculate log2blksz from blksz, other its value = 0

[Lan Yixun (dlan)]

From: "Lan Yixun (dlan)" <dennis.yxun at gmail.com>

err:
lt703a # ext4ls nand 3:0
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **

bug may introduced by commit:

commit 50ce4c07df1c98aabf4630b35152ed95a87242f7
Author: Egbert Eich <eich at suse.com>
Date:   Wed May 1 01:13:19 2013 +0000

    fs/ext4: Support device block sizes != 512 bytes

Signed-off-by: Lan Yixun (dlan) <dennis.yxun at gmail.com>
---
 disk/part.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/disk/part.c b/disk/part.c
index fc8404d..dbc94c4 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -551,6 +551,8 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
 			goto cleanup;
 		}
 
+		(*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
 		info->start = 0;
 		info->size = (*dev_desc)->lba;
 		info->blksz = (*dev_desc)->blksz;
@@ -634,6 +636,8 @@ int get_device_and_partition(const char *ifname, const char *dev_part_str,
 		goto cleanup;
 	}
 
+	(*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
 	ret = part;
 	goto cleanup;
 
-- 
1.8.2.1