openwrt/target/linux/generic/pending-6.1/493-ubi-set-ROOT_DEV-to-ubiblock-rootfs-if-unset.patch
Christian Marangi fa79baf4a6
generic: copy backport, hack, pending patch and config from 5.15 to 6.1
Copy backport, hack, pending patch and config from 5.15 to 6.1.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2023-05-22 22:28:13 +02:00

35 lines
984 B
Diff

From: Daniel Golle <daniel@makrotopia.org>
Subject: ubi: set ROOT_DEV to ubiblock "rootfs" if unset
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
@@ -42,6 +42,7 @@
#include <linux/scatterlist.h>
#include <linux/idr.h>
#include <asm/div64.h>
+#include <linux/root_dev.h>
#include "ubi-media.h"
#include "ubi.h"
@@ -451,6 +452,15 @@ int ubiblock_create(struct ubi_volume_in
dev_info(disk_to_dev(dev->gd), "created from ubi%d:%d(%s)",
dev->ubi_num, dev->vol_id, vi->name);
mutex_unlock(&devices_mutex);
+
+ if (!strcmp(vi->name, "rootfs") &&
+ IS_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_remove_minor: