From 734c3f71482d5234f320f9b2b9acd8c51be51ae6 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 10 Apr 2021 17:00:57 +0200 Subject: [PATCH] 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 Signed-off-by: Felix Fietkau --- ...402-mtd-blktrans-call-add-disks-after-mtd-device.patch | 4 ++-- .../420-mtd-set-rootfs-to-be-root-dev.patch} | 8 ++++++-- .../495-mtd-core-add-get_mtd_device_by_node.patch | 2 +- 3 files changed, 9 insertions(+), 5 deletions(-) rename target/linux/generic/{pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch => hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch} (83%) 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 bc9e84cac1a..77ecd9b72fc 100644 --- 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 unsigned long flags; --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c -@@ -32,6 +32,7 @@ +@@ -31,6 +31,7 @@ #include #include @@ -82,7 +82,7 @@ Signed-off-by: Daniel Golle #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 e01b9919428..91a91b36cab 100644 --- 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 #include #include -@@ -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 + 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 7a7ad6b2639..ef8b54a450f 100644 --- 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 --- 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); -- 2.30.2