diff options
Diffstat (limited to 'target/linux/generic/pending-4.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch')
| -rw-r--r-- | target/linux/generic/pending-4.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch b/target/linux/generic/pending-4.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch new file mode 100644 index 0000000000..dff9c3166e --- /dev/null +++ b/target/linux/generic/pending-4.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch @@ -0,0 +1,81 @@ +From: Gabor Juhos <juhosg@openwrt.org> +Subject: kernel/3.10: allow to use partition parsers for rootfs and firmware split + +lede-commit: 3b71cd94bc9517bc25267dccb393b07d4b54564e +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +--- + drivers/mtd/mtdpart.c | 37 +++++++++++++++++++++++++++++++++++++ + include/linux/mtd/partitions.h | 2 ++ + 2 files changed, 39 insertions(+) + +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -769,6 +769,36 @@ int mtd_del_partition(struct mtd_info *m + } + EXPORT_SYMBOL_GPL(mtd_del_partition); + ++static int ++run_parsers_by_type(struct mtd_part *slave, enum mtd_parser_type type) ++{ ++ struct mtd_partition *parts; ++ int nr_parts; ++ int i; ++ ++ nr_parts = parse_mtd_partitions_by_type(&slave->mtd, type, (const struct mtd_partition **)&parts, ++ NULL); ++ if (nr_parts <= 0) ++ return nr_parts; ++ ++ if (WARN_ON(!parts)) ++ return 0; ++ ++ for (i = 0; i < nr_parts; i++) { ++ /* adjust partition offsets */ ++ parts[i].offset += slave->offset; ++ ++ mtd_add_partition(slave->parent, ++ parts[i].name, ++ parts[i].offset, ++ parts[i].size); ++ } ++ ++ kfree(parts); ++ ++ return nr_parts; ++} ++ + #ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME + #define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME + #else +@@ -777,6 +807,7 @@ EXPORT_SYMBOL_GPL(mtd_del_partition); + + static void split_firmware(struct mtd_info *master, struct mtd_part *part) + { ++ run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE); + } + + void __weak arch_split_mtd_part(struct mtd_info *master, const char *name, +@@ -791,6 +822,12 @@ static void mtd_partition_split(struct m + if (rootfs_found) + return; + ++ if (!strcmp(part->mtd.name, "rootfs")) { ++ run_parsers_by_type(part, MTD_PARSER_TYPE_ROOTFS); ++ ++ rootfs_found = 1; ++ } ++ + if (!strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) && + IS_ENABLED(CONFIG_MTD_SPLIT_FIRMWARE)) + split_firmware(master, part); +--- a/include/linux/mtd/partitions.h ++++ b/include/linux/mtd/partitions.h +@@ -74,6 +74,8 @@ struct mtd_part_parser_data { + + enum mtd_parser_type { + MTD_PARSER_TYPE_DEVICE = 0, ++ MTD_PARSER_TYPE_ROOTFS, ++ MTD_PARSER_TYPE_FIRMWARE, + }; + + struct mtd_part_parser { |