From 734c3f71482d5234f320f9b2b9acd8c51be51ae6 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 10 Apr 2021 17:00:57 +0200 Subject: 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 --- ...-blktrans-call-add-disks-after-mtd-device.patch | 4 +-- .../420-mtd-set-rootfs-to-be-root-dev.patch | 42 ++++++++++++++++++++++ .../480-mtd-set-rootfs-to-be-root-dev.patch | 38 -------------------- .../495-mtd-core-add-get_mtd_device_by_node.patch | 2 +- 4 files changed, 45 insertions(+), 41 deletions(-) create mode 100644 target/linux/generic/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch delete mode 100644 target/linux/generic/pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch (limited to 'target/linux') 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 bc9e84cac1..77ecd9b72f 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/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch b/target/linux/generic/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch new file mode 100644 index 0000000000..91a91b36ca --- /dev/null +++ b/target/linux/generic/hack-5.10/420-mtd-set-rootfs-to-be-root-dev.patch @@ -0,0 +1,42 @@ +From: Gabor Juhos +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 +--- + 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 + #include + #include ++#include + #include + + #include +@@ -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: diff --git a/target/linux/generic/pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch b/target/linux/generic/pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch deleted file mode 100644 index e01b991942..0000000000 --- a/target/linux/generic/pending-5.10/480-mtd-set-rootfs-to-be-root-dev.patch +++ /dev/null @@ -1,38 +0,0 @@ -From: Gabor Juhos -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 ---- - 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 - #include - #include -+#include - #include - - #include -@@ -693,6 +694,15 @@ 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) { -+ pr_notice("mtd: device %d (%s) set to be root filesystem\n", -+ mtd->index, mtd->name); -+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, mtd->index); -+ } -+ - return 0; - - fail_nvmem_add: 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 7a7ad6b263..ef8b54a450 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); -- cgit v1.2.3