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path: root/target/linux/generic/patches-3.18/493-ubi-set-ROOT_DEV-to-ubiblock-rootfs-if-unset.patch
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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"
@@ -448,6 +449,15 @@ int ubiblock_create(struct ubi_volume_in
 	add_disk(dev->gd);
 	ubi_msg("%s created from ubi%d:%d(%s)",
 		dev->gd->disk_name, 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:
ass="k">) | $(HOST_TAR) -C $(TOOLCHAIN_BUILD_DIR) $(TAR_OPTIONS) $(PATCH) $(PKG_BUILD_DIR) $(TOPDIR)/target/linux/etrax-2.6/patches/generic_2.6 $(PATCH) $(PKG_BUILD_DIR) $(TOPDIR)/target/linux/etrax-2.6/patches/cris ln -sf $(PKG_BUILD_DIR)/include/asm-cris/arch-v10 $(PKG_BUILD_DIR)/include/asm-cris/arch ln -sf $(PKG_BUILD_DIR)/arch/cris/arch-v10 $(PKG_BUILD_DIR)/arch/cris/arch $(SED) 's/@expr length/@-expr length/' $(PKG_BUILD_DIR)/Makefile ln -sf $(PKG_BUILD_DIR) $(LINUX_HEADERS_DIR) endef define Build/Configure/powerpc $(CP) $(PKG_BUILD_DIR)/include/asm-ppc/* $(PKG_BUILD_DIR)/include/asm-powerpc/ rm -rf $(PKG_BUILD_DIR)/include/asm-ppc mv $(PKG_BUILD_DIR)/include/asm-powerpc $(PKG_BUILD_DIR)/include/asm-ppc endef ifneq (,$(findstring uml,$(BOARD))) LINUX_KARCH:=$(ARCH) endif KMAKE := $(MAKE) -C $(PKG_BUILD_DIR) \ ARCH=$(LINUX_KARCH) \ CONFIG_SHELL=$(BASH) define Build/Prepare/Default $(call Kernel/Prepare/Default) $(SED) 's/@expr length/@-expr length/' $(PKG_BUILD_DIR)/Makefile ln -sf $(PKG_BUILD_DIR) $(LINUX_HEADERS_DIR) endef define Build/Prepare $(if $(Build/Prepare/$(ARCH)),$(Build/Prepare/$(ARCH)),$(Build/Prepare/Default)) yes '' | $(KMAKE) oldconfig $(KMAKE) include/linux/version.h include/asm $(call Build/Configure/$(ARCH)) endef define Build/Configure endef define Build/Compile endef define Build/Install endef $(eval $(call HostBuild))