diff options
Diffstat (limited to 'target/linux/generic/pending-4.19/400-mtd-add-rootfs-split-support.patch')
-rw-r--r-- | target/linux/generic/pending-4.19/400-mtd-add-rootfs-split-support.patch | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/target/linux/generic/pending-4.19/400-mtd-add-rootfs-split-support.patch b/target/linux/generic/pending-4.19/400-mtd-add-rootfs-split-support.patch deleted file mode 100644 index e646224df2..0000000000 --- a/target/linux/generic/pending-4.19/400-mtd-add-rootfs-split-support.patch +++ /dev/null @@ -1,107 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Subject: make rootfs split/detection more generic - patch can be moved to generic-2.6 after testing on other platforms - -lede-commit: 328e660b31f0937d52c5ae3d6e7029409918a9df -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - drivers/mtd/Kconfig | 17 +++++++++++++++++ - drivers/mtd/mtdpart.c | 35 +++++++++++++++++++++++++++++++++++ - include/linux/mtd/partitions.h | 2 ++ - 3 files changed, 54 insertions(+) - ---- a/drivers/mtd/Kconfig -+++ b/drivers/mtd/Kconfig -@@ -11,6 +11,23 @@ menuconfig MTD - - if MTD - -+menu "OpenWrt specific MTD options" -+ -+config MTD_ROOTFS_ROOT_DEV -+ bool "Automatically set 'rootfs' partition to be root filesystem" -+ default y -+ -+config MTD_SPLIT_FIRMWARE -+ bool "Automatically split firmware partition for kernel+rootfs" -+ default y -+ -+config MTD_SPLIT_FIRMWARE_NAME -+ string "Firmware partition name" -+ depends on MTD_SPLIT_FIRMWARE -+ default "firmware" -+ -+endmenu -+ - config MTD_TESTS - tristate "MTD tests support (DANGEROUS)" - depends on m ---- a/drivers/mtd/mtdpart.c -+++ b/drivers/mtd/mtdpart.c -@@ -29,10 +29,12 @@ - #include <linux/kmod.h> - #include <linux/mtd/mtd.h> - #include <linux/mtd/partitions.h> -+#include <linux/magic.h> - #include <linux/err.h> - #include <linux/of.h> - - #include "mtdcore.h" -+#include "mtdsplit/mtdsplit.h" - - /* Our partition linked list */ - static LIST_HEAD(mtd_partitions); -@@ -52,6 +54,8 @@ struct mtd_part { - struct list_head list; - }; - -+static void mtd_partition_split(struct mtd_info *master, struct mtd_part *part); -+ - /* - * Given a pointer to the MTD object in the mtd_part structure, we can retrieve - * the pointer to that structure. -@@ -623,6 +627,7 @@ int mtd_add_partition(struct mtd_info *p - mutex_unlock(&mtd_partitions_mutex); - - add_mtd_device(&new->mtd); -+ mtd_partition_split(parent, new); - - mtd_add_partition_attrs(new); - -@@ -701,6 +706,29 @@ int mtd_del_partition(struct mtd_info *m - } - EXPORT_SYMBOL_GPL(mtd_del_partition); - -+#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME -+#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME -+#else -+#define SPLIT_FIRMWARE_NAME "unused" -+#endif -+ -+static void split_firmware(struct mtd_info *master, struct mtd_part *part) -+{ -+} -+ -+static void mtd_partition_split(struct mtd_info *master, struct mtd_part *part) -+{ -+ static int rootfs_found = 0; -+ -+ if (rootfs_found) -+ return; -+ -+ if (IS_ENABLED(CONFIG_MTD_SPLIT_FIRMWARE) && -+ !strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) && -+ !of_find_property(mtd_get_of_node(&part->mtd), "compatible", NULL)) -+ split_firmware(master, part); -+} -+ - /* - * This function, given a master MTD object and a partition table, creates - * and registers slave MTD objects which are bound to the master according to -@@ -732,6 +760,7 @@ int add_mtd_partitions(struct mtd_info * - mutex_unlock(&mtd_partitions_mutex); - - add_mtd_device(&slave->mtd); -+ mtd_partition_split(master, slave); - mtd_add_partition_attrs(slave); - /* Look for subpartitions */ - parse_mtd_partitions(&slave->mtd, parts[i].types, NULL); |