kernel: fix mtd squashfs root regression on targets with CONFIG_FIT_PARTITION

Move 480-mtd-set-rootfs-to-be-root-dev.patch to hack-5.10 and fix assumption
about the block device index.

Fixes: 2809d0000744 ("kernel: support FIT partition parser on mtdblock devices")
Acked-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/target/linux/generic/hack-5.10/402-mtd-blktrans-call-add-disks-after-mtd-device.patch b/target/linux/generic/hack-5.10/402-mtd-blktrans-call-add-disks-after-mtd-device.patch
index bc9e84cac1ad0467e9f60497fb6ebe497ee67e0d..77ecd9b72fc79e221319f65f0a7fc766f37ff2dd 100644 (file)
--- a/target/linux/generic/hack-5.10/402-mtd-blktrans-call-add-disks-after-mtd-device.patch
+++ b/target/linux/generic/hack-5.10/402-mtd-blktrans-call-add-disks-after-mtd-device.patch
@@ -74,7 +74,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
        unsigned long flags;
 --- a/drivers/mtd/mtdcore.c
 +++ b/drivers/mtd/mtdcore.c
-@@ -32,6 +32,7 @@
+@@ -31,6 +31,7 @@
  
  #include <linux/mtd/mtd.h>
  #include <linux/mtd/partitions.h>
@@ -82,7 +82,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
  
  #include "mtdcore.h"
  
-@@ -858,6 +859,8 @@ int mtd_device_parse_register(struct mtd
+@@ -848,6 +849,8 @@ int mtd_device_parse_register(struct mtd
                register_reboot_notifier(&mtd->reboot_notifier);
        }
  

diff --git a/target/linux/generic/pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch b/target/linux/generic/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch
similarity index 83%
rename from target/linux/generic/pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch
rename to target/linux/generic/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch
index e01b9919428def2c019618c91ddf9873b5cdb39d..91a91b36cabee53e93de6fb207fecf224f364dca 100644 (file)
--- a/target/linux/generic/pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch
+++ b/target/linux/generic/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch
@@ -20,7 +20,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  #include <linux/nvmem-provider.h>
  
  #include <linux/mtd/mtd.h>
-@@ -693,6 +694,15 @@ int add_mtd_device(struct mtd_info *mtd)
+@@ -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);
@@ -28,9 +28,13 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
 +      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);
-+              ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, mtd->index);
++#ifdef CONFIG_FIT_PARTITION
++              index <<= 1;
++#endif
++              ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, index);
 +      }
 +
        return 0;

diff --git a/target/linux/generic/pending-5.10/495-mtd-core-add-get_mtd_device_by_node.patch b/target/linux/generic/pending-5.10/495-mtd-core-add-get_mtd_device_by_node.patch
index 7a7ad6b2639dac607881b2f27528ef98691d93d3..ef8b54a450f0b6a676fe8bd127683dc550c05665 100644 (file)
--- a/target/linux/generic/pending-5.10/495-mtd-core-add-get_mtd_device_by_node.patch
+++ b/target/linux/generic/pending-5.10/495-mtd-core-add-get_mtd_device_by_node.patch
@@ -17,7 +17,7 @@ Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
 
 --- a/drivers/mtd/mtdcore.c
 +++ b/drivers/mtd/mtdcore.c
-@@ -1053,6 +1053,44 @@ out_unlock:
+@@ -1043,6 +1043,44 @@ out_unlock:
  }
  EXPORT_SYMBOL_GPL(get_mtd_device_nm);