1 --- a/include/linux/bcm963xx_tag.h
2 +++ b/include/linux/bcm963xx_tag.h
3 @@ -92,8 +92,10 @@ struct bcm_tag {
5 /* 224-227: CRC32 of kernel partition */
7 - /* 228-235: Unused at present */
9 + /* 228-231: Unused at present */
11 + /* 222-235: Openwrt: real rootfs length */
12 + __u32 real_rootfs_length;
13 /* 236-239: CRC32 of header excluding last 20 bytes */
15 /* 240-255: Unused at present */
16 --- a/drivers/mtd/parsers/parser_imagetag.c
17 +++ b/drivers/mtd/parsers/parser_imagetag.c
18 @@ -137,7 +137,8 @@ static int bcm963xx_parse_imagetag_parti
21 rootfsaddr = kerneladdr + kernellen;
22 - rootfslen = spareaddr - rootfsaddr;
23 + rootfslen = buf->real_rootfs_length;
24 + spareaddr = rootfsaddr + rootfslen;