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path: root/target/linux/generic/patches-4.4/480-mtd-set-rootfs-to-be-root-dev.patch
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Diffstat (limited to 'target/linux/generic/patches-4.4/480-mtd-set-rootfs-to-be-root-dev.patch')
-rw-r--r--target/linux/generic/patches-4.4/480-mtd-set-rootfs-to-be-root-dev.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.4/480-mtd-set-rootfs-to-be-root-dev.patch b/target/linux/generic/patches-4.4/480-mtd-set-rootfs-to-be-root-dev.patch
new file mode 100644
index 0000000..b565b52
--- /dev/null
+++ b/target/linux/generic/patches-4.4/480-mtd-set-rootfs-to-be-root-dev.patch
@@ -0,0 +1,26 @@
+--- a/drivers/mtd/mtdcore.c
++++ b/drivers/mtd/mtdcore.c
+@@ -39,6 +39,7 @@
+ #include <linux/slab.h>
+ #include <linux/reboot.h>
+ #include <linux/kconfig.h>
++#include <linux/root_dev.h>
+
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+@@ -473,6 +474,15 @@ 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") &&
++ config_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: