kernel: backport mtd support for subpartitions in DT

[openwrt/openwrt.git] / target / linux / generic / pending-4.14 / 400-mtd-add-rootfs-split-support.patch

diff --git a/target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch b/target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch
index bc2272d26de249f81336967042ca6e288c72e9c0..68737803d8fb3b535b20cbb4f0e5c2abebe51a68 100644 (file)
--- a/target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch
+++ b/target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch
@@ -60,7 +60,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  /*
   * Given a pointer to the MTD object in the mtd_part structure, we can retrieve
   * the pointer to that structure.
-@@ -674,6 +678,7 @@ int mtd_add_partition(struct mtd_info *p
+@@ -658,6 +662,7 @@ int mtd_add_partition(struct mtd_info *p
        mutex_unlock(&mtd_partitions_mutex);
  
        add_mtd_device(&new->mtd);
@@ -68,7 +68,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  
        mtd_add_partition_attrs(new);
  
-@@ -752,6 +757,35 @@ int mtd_del_partition(struct mtd_info *m
+@@ -736,6 +741,35 @@ int mtd_del_partition(struct mtd_info *m
  }
  EXPORT_SYMBOL_GPL(mtd_del_partition);
  
@@ -104,14 +104,14 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  /*
   * 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
-@@ -783,6 +817,7 @@ int add_mtd_partitions(struct mtd_info *
+@@ -767,6 +801,7 @@ 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);
-               if (parts[i].types)
-                       mtd_parse_part(slave, parts[i].types);
+               /* Look for subpartitions */
+               parse_mtd_partitions(&slave->mtd, parts[i].types, NULL);
 --- a/include/linux/mtd/partitions.h
 +++ b/include/linux/mtd/partitions.h
 @@ -110,5 +110,7 @@ int mtd_add_partition(struct mtd_info *m