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kernel: don't auto-split "firmware" if it has "compatible" DT property

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If "compatible" is being used that should trigger a proper parser
directly. It's more reliable thanks to not trying parsers one by one. In
such case partition shouldn't be split automatically to avoid parsing it
twice.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki 2018-11-22 12:55:14 +01:00
parent 6680fab947
commit 934edb764d
8 changed files with 20 additions and 18 deletions
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9
target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch
View File

@ -68,7 +68,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
mtd_add_partition_attrs(new);
@@ -736,6 +741,35 @@ int mtd_del_partition(struct mtd_info *m
@@ -736,6 +741,36 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@ -94,8 +94,9 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (rootfs_found)
+ return;
+
+ if (!strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) &&
+ IS_ENABLED(CONFIG_MTD_SPLIT_FIRMWARE))
+ 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);
+
+ arch_split_mtd_part(master, part->mtd.name, part->offset,
@ -104,7 +105,7 @@ 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
@@ -767,6 +801,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -767,6 +802,7 @@ int add_mtd_partitions(struct mtd_info *
mutex_unlock(&mtd_partitions_mutex);
add_mtd_device(&slave->mtd);

2
target/linux/generic/pending-4.14/401-mtd-add-support-for-different-partition-parser-types.patch
View File

@ -57,7 +57,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -1118,6 +1152,61 @@ void mtd_part_parser_cleanup(struct mtd_
@@ -1119,6 +1153,61 @@ void mtd_part_parser_cleanup(struct mtd_
}
}

6
target/linux/generic/pending-4.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
View File

@ -28,9 +28,9 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+ rootfs_found = 1;
+ }
+
if (!strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) &&
IS_ENABLED(CONFIG_MTD_SPLIT_FIRMWARE))
split_firmware(master, part);
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))
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -75,6 +75,8 @@ struct mtd_part_parser_data {

2
target/linux/generic/pending-4.14/404-mtd-add-more-helper-functions.patch
View File

@ -11,7 +11,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -1231,6 +1231,24 @@ int mtd_is_partition(const struct mtd_in
@@ -1232,6 +1232,24 @@ int mtd_is_partition(const struct mtd_in
}
EXPORT_SYMBOL_GPL(mtd_is_partition);

9
target/linux/generic/pending-4.9/400-mtd-add-rootfs-split-support.patch
View File

@ -68,7 +68,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
mtd_add_partition_attrs(new);
@@ -728,6 +733,35 @@ int mtd_del_partition(struct mtd_info *m
@@ -728,6 +733,36 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@ -94,8 +94,9 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ if (rootfs_found)
+ return;
+
+ if (!strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) &&
+ IS_ENABLED(CONFIG_MTD_SPLIT_FIRMWARE))
+ 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);
+
+ arch_split_mtd_part(master, part->mtd.name, part->offset,
@ -104,7 +105,7 @@ 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
@@ -759,6 +793,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -759,6 +794,7 @@ int add_mtd_partitions(struct mtd_info *
mutex_unlock(&mtd_partitions_mutex);
add_mtd_device(&slave->mtd);

2
target/linux/generic/pending-4.9/401-mtd-add-support-for-different-partition-parser-types.patch
View File

@ -57,7 +57,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -1115,6 +1149,61 @@ void mtd_part_parser_cleanup(struct mtd_
@@ -1116,6 +1150,61 @@ void mtd_part_parser_cleanup(struct mtd_
}
}

6
target/linux/generic/pending-4.9/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
View File

@ -28,9 +28,9 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+ rootfs_found = 1;
+ }
+
if (!strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) &&
IS_ENABLED(CONFIG_MTD_SPLIT_FIRMWARE))
split_firmware(master, part);
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))
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -75,6 +75,8 @@ struct mtd_part_parser_data {

2
target/linux/generic/pending-4.9/404-mtd-add-more-helper-functions.patch
View File

@ -11,7 +11,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -1228,6 +1228,24 @@ int mtd_is_partition(const struct mtd_in
@@ -1229,6 +1229,24 @@ int mtd_is_partition(const struct mtd_in
}
EXPORT_SYMBOL_GPL(mtd_is_partition);