diff options
Diffstat (limited to 'target/linux/generic/patches-3.19/400-mtd-add-rootfs-split-support.patch')
| -rw-r--r-- | target/linux/generic/patches-3.19/400-mtd-add-rootfs-split-support.patch | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/target/linux/generic/patches-3.19/400-mtd-add-rootfs-split-support.patch b/target/linux/generic/patches-3.19/400-mtd-add-rootfs-split-support.patch deleted file mode 100644 index bf69a3509d..0000000000 --- a/target/linux/generic/patches-3.19/400-mtd-add-rootfs-split-support.patch +++ /dev/null @@ -1,171 +0,0 @@ ---- a/drivers/mtd/Kconfig -+++ b/drivers/mtd/Kconfig -@@ -12,6 +12,23 @@ 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 -@@ -29,9 +29,11 @@ - #include <linux/kmod.h> - #include <linux/mtd/mtd.h> - #include <linux/mtd/partitions.h> -+#include <linux/magic.h> - #include <linux/err.h> - - #include "mtdcore.h" -+#include "mtdsplit/mtdsplit.h" - - /* Our partition linked list */ - static LIST_HEAD(mtd_partitions); -@@ -45,13 +47,14 @@ 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 with this macro. - */ - #define PART(x) ((struct mtd_part *)(x)) - -- - /* - * MTD methods which simply translate the effective address and pass through - * to the _real_ device. -@@ -547,8 +550,10 @@ out_register: - return slave; - } - --int mtd_add_partition(struct mtd_info *master, const char *name, -- long long offset, long long length) -+ -+static int -+__mtd_add_partition(struct mtd_info *master, const char *name, -+ long long offset, long long length, bool dup_check) - { - struct mtd_partition part; - struct mtd_part *p, *new; -@@ -580,21 +585,24 @@ int mtd_add_partition(struct mtd_info *m - end = offset + length; - - mutex_lock(&mtd_partitions_mutex); -- list_for_each_entry(p, &mtd_partitions, list) -- if (p->master == master) { -- if ((start >= p->offset) && -- (start < (p->offset + p->mtd.size))) -- goto err_inv; -- -- if ((end >= p->offset) && -- (end < (p->offset + p->mtd.size))) -- goto err_inv; -- } -+ if (dup_check) { -+ list_for_each_entry(p, &mtd_partitions, list) -+ if (p->master == master) { -+ if ((start >= p->offset) && -+ (start < (p->offset + p->mtd.size))) -+ goto err_inv; -+ -+ if ((end >= p->offset) && -+ (end < (p->offset + p->mtd.size))) -+ goto err_inv; -+ } -+ } - - list_add(&new->list, &mtd_partitions); - mutex_unlock(&mtd_partitions_mutex); - - add_mtd_device(&new->mtd); -+ mtd_partition_split(master, new); - - return ret; - err_inv: -@@ -604,6 +612,12 @@ err_inv: - } - EXPORT_SYMBOL_GPL(mtd_add_partition); - -+int mtd_add_partition(struct mtd_info *master, const char *name, -+ long long offset, long long length) -+{ -+ return __mtd_add_partition(master, name, offset, length, true); -+} -+ - int mtd_del_partition(struct mtd_info *master, int partno) - { - struct mtd_part *slave, *next; -@@ -627,6 +641,35 @@ 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) -+{ -+} -+ -+void __weak arch_split_mtd_part(struct mtd_info *master, const char *name, -+ int offset, int size) -+{ -+} -+ -+static void mtd_partition_split(struct mtd_info *master, struct mtd_part *part) -+{ -+ static int rootfs_found = 0; -+ -+ if (rootfs_found) -+ return; -+ -+ if (!strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) && -+ config_enabled(CONFIG_MTD_SPLIT_FIRMWARE)) -+ split_firmware(master, part); -+ -+ arch_split_mtd_part(master, part->mtd.name, part->offset, -+ part->mtd.size); -+} - /* - * 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 -@@ -656,6 +699,7 @@ int add_mtd_partitions(struct mtd_info * - mutex_unlock(&mtd_partitions_mutex); - - add_mtd_device(&slave->mtd); -+ mtd_partition_split(master, slave); - - cur_offset = slave->offset + slave->mtd.size; - } ---- a/include/linux/mtd/partitions.h -+++ b/include/linux/mtd/partitions.h -@@ -84,5 +84,7 @@ int mtd_add_partition(struct mtd_info *m - long long offset, long long length); - int mtd_del_partition(struct mtd_info *master, int partno); - uint64_t mtd_get_device_size(const struct mtd_info *mtd); -+extern void __weak arch_split_mtd_part(struct mtd_info *master, -+ const char *name, int offset, int size); - - #endif |