openwrt/target/linux/brcm63xx/patches-4.19/401-bcm963xx_real_rootfs_length.patch
Álvaro Fernández Rojas f586dd67ac brcm63xx: add linux 4.19 support
Boot tested on Comtrend AR-5387un:
https://gist.github.com/Noltari/57e5030455da8dc38e61f8c3a5922254

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
[jonas.gorski: make 4.19 an optional testing version; add gcc 8.3 fix]
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2019-11-09 13:16:01 +01:00

28 lines
863 B
Diff

--- a/include/linux/bcm963xx_tag.h
+++ b/include/linux/bcm963xx_tag.h
@@ -92,8 +92,10 @@ struct bcm_tag {
__u32 rootfs_crc;
/* 224-227: CRC32 of kernel partition */
__u32 kernel_crc;
- /* 228-235: Unused at present */
- char reserved1[8];
+ /* 228-231: Unused at present */
+ char reserved1[4];
+ /* 222-235: Openwrt: real rootfs length */
+ __u32 real_rootfs_length;
/* 236-239: CRC32 of header excluding last 20 bytes */
__u32 header_crc;
/* 240-255: Unused at present */
--- a/drivers/mtd/parsers/parser_imagetag.c
+++ b/drivers/mtd/parsers/parser_imagetag.c
@@ -137,7 +137,8 @@ static int bcm963xx_parse_imagetag_parti
} else {
/* OpenWrt layout */
rootfsaddr = kerneladdr + kernellen;
- rootfslen = spareaddr - rootfsaddr;
+ rootfslen = buf->real_rootfs_length;
+ spareaddr = rootfsaddr + rootfslen;
}
} else {
goto out;