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Add kernel 5.14 support

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This commit is contained in:
Ycarus (Yannick Chabanois) 2021-09-27 18:18:30 +02:00
parent e5205730ea
commit 465341a8d5
49 changed files with 18920 additions and 10 deletions
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42
root/target/linux/generic/hack-5.14/420-mtd-set-rootfs-to-be-root-dev.patch Normal file
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@ -0,0 +1,42 @@
From: Gabor Juhos <juhosg@openwrt.org>
Subject: kernel/3.1[02]: move MTD root device setup code to mtdcore
The current code only allows to automatically set
root device on MTD partitions. Move the code to MTD
core to allow to use it with all MTD devices.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
---
drivers/mtd/mtdcore.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -27,6 +27,7 @@
#include <linux/reboot.h>
#include <linux/leds.h>
#include <linux/debugfs.h>
+#include <linux/root_dev.h>
#include <linux/nvmem-provider.h>
#include <linux/mtd/mtd.h>
@@ -694,6 +695,19 @@ 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") &&
+ IS_ENABLED(CONFIG_MTD_ROOTFS_ROOT_DEV) &&
+ ROOT_DEV == 0) {
+ unsigned int index = mtd->index;
+ pr_notice("mtd: device %d (%s) set to be root filesystem\n",
+ mtd->index, mtd->name);
+#ifdef CONFIG_FIT_PARTITION
+ index <<= 1;
+#endif
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, index);
+ }
+
return 0;
fail_nvmem_add: