aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic/patches-4.1/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/generic/patches-4.1/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch')
-rw-r--r--target/linux/generic/patches-4.1/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch72
1 files changed, 72 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.1/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch b/target/linux/generic/patches-4.1/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
new file mode 100644
index 0000000..725dbe8
--- /dev/null
+++ b/target/linux/generic/patches-4.1/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
@@ -0,0 +1,72 @@
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -656,6 +656,37 @@ 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, &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->master,
++ parts[i].name,
++ parts[i].offset,
++ parts[i].size,
++ false);
++ }
++
++ kfree(parts);
++
++ return nr_parts;
++}
++
+ #ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
+ #define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
+ #else
+@@ -664,6 +695,7 @@ 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,
+@@ -678,6 +710,12 @@ 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) &&
+ config_enabled(CONFIG_MTD_SPLIT_FIRMWARE))
+ split_firmware(master, part);
+--- a/include/linux/mtd/partitions.h
++++ b/include/linux/mtd/partitions.h
+@@ -70,6 +70,8 @@ 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 {