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
@@ -48,6 +48,7 @@
#include <linux/blkdev.h>
#include <linux/hdreg.h>
#include <asm/div64.h>
+#include <linux/root_dev.h>
#include "ubi-media.h"
#include "ubi.h"
@@ -447,6 +448,15 @@ 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;
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