OpenWrt
/branches/gl-inet/target/linux/generic/pending-4.9/480-mtd-set-rootfs-to-be-root-dev.patch |
@@ -0,0 +1,38 @@ |
From: Gabor Juhos <juhosg@openwrt.org> |
Subject: kernel/3.1[02]: move MTD root device setup code to mtdcore |
|
The current code only allows to automatically set |
root device on MTD partitions. Move the code to MTD |
core to allow to use it with all MTD devices. |
|
Signed-off-by: Gabor Juhos <juhosg@openwrt.org> |
--- |
drivers/mtd/mtdcore.c | 10 ++++++++++ |
1 file changed, 10 insertions(+) |
|
--- a/drivers/mtd/mtdcore.c |
+++ b/drivers/mtd/mtdcore.c |
@@ -40,6 +40,7 @@ |
#include <linux/slab.h> |
#include <linux/reboot.h> |
#include <linux/leds.h> |
+#include <linux/root_dev.h> |
|
#include <linux/mtd/mtd.h> |
#include <linux/mtd/partitions.h> |
@@ -570,6 +571,15 @@ int add_mtd_device(struct mtd_info *mtd) |
of this try_ nonsense, and no bitching about it |
either. :) */ |
__module_get(THIS_MODULE); |
+ |
+ if (!strcmp(mtd->name, "rootfs") && |
+ IS_ENABLED(CONFIG_MTD_ROOTFS_ROOT_DEV) && |
+ ROOT_DEV == 0) { |
+ pr_notice("mtd: device %d (%s) set to be root filesystem\n", |
+ mtd->index, mtd->name); |
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, mtd->index); |
+ } |
+ |
return 0; |
|
fail_added: |