openwrt/target/linux/brcm63xx/patches-4.9/401-bcm963xx_real_rootfs_length.patch
Jonas Gorski b0c5e8b927 brcm63xx: add kernel 4.9 support
Add support for kernel 4.9 based on the more upstream comformant
partition defintions. Increases compressed kernel size by ~95k
compared to 4.4.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
2018-02-11 23:15:05 +01:00

28 lines
863 B
Diff

--- a/include/linux/bcm963xx_tag.h
+++ b/include/linux/bcm963xx_tag.h
@@ -91,8 +91,10 @@ 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;