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-rw-r--r--target/linux/generic/patches-4.0/493-ubi-set-ROOT_DEV-to-ubiblock-rootfs-if-unset.patch37
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.0/493-ubi-set-ROOT_DEV-to-ubiblock-rootfs-if-unset.patch b/target/linux/generic/patches-4.0/493-ubi-set-ROOT_DEV-to-ubiblock-rootfs-if-unset.patch
new file mode 100644
index 0000000000..f080fd1532
--- /dev/null
+++ b/target/linux/generic/patches-4.0/493-ubi-set-ROOT_DEV-to-ubiblock-rootfs-if-unset.patch
@@ -0,0 +1,37 @@
+From cd68d1b12b5ea4c01a664c064179ada42bf55d3d Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Thu, 15 May 2014 20:55:42 +0200
+Subject: [PATCH 5/5] ubi: set ROOT_DEV to ubiblock "rootfs" if unset
+To: openwrt-devel@lists.openwrt.org
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ drivers/mtd/ubi/block.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/mtd/ubi/block.c
++++ b/drivers/mtd/ubi/block.c
+@@ -49,6 +49,7 @@
+ #include <linux/hdreg.h>
+ #include <linux/scatterlist.h>
+ #include <asm/div64.h>
++#include <linux/root_dev.h>
+
+ #include "ubi-media.h"
+ #include "ubi.h"
+@@ -437,6 +438,15 @@ int ubiblock_create(struct ubi_volume_in
+ add_disk(dev->gd);
+ dev_info(disk_to_dev(dev->gd), "created from ubi%d:%d(%s)",
+ dev->ubi_num, dev->vol_id, vi->name);
++
++ if (!strcmp(vi->name, "rootfs") &&
++ config_enabled(CONFIG_MTD_ROOTFS_ROOT_DEV) &&
++ ROOT_DEV == 0) {
++ pr_notice("ubiblock: device ubiblock%d_%d (%s) set to be root filesystem\n",
++ dev->ubi_num, dev->vol_id, vi->name);
++ ROOT_DEV = MKDEV(gd->major, gd->first_minor);
++ }
++
+ return 0;
+
+ out_free_queue: