+From 39717277d5c87bdb183cf2f258957b44ba99b4df Mon Sep 17 00:00:00 2001
+From: OpenWrt community <openwrt-devel@lists.openwrt.org>
+Date: Wed, 13 Jul 2022 11:47:35 +0200
+Subject: [PATCH] mtd: mtdsplit support
+
+---
+ drivers/mtd/Kconfig | 19 ++++
+ drivers/mtd/Makefile | 2 +
+ drivers/mtd/mtdpart.c | 169 ++++++++++++++++++++++++++++-----
+ include/linux/mtd/mtd.h | 25 +++++
+ include/linux/mtd/partitions.h | 7 ++
+ 5 files changed, 197 insertions(+), 25 deletions(-)
+
+diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
+index 796a2eccbef0..f9ed93c4cf0f 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -12,6 +12,25 @@ menuconfig MTD
config MTD_TESTS
tristate "MTD tests support (DANGEROUS)"
depends on m
+diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
+index 593d0593a038..b14b7fe0f597 100644
+--- a/drivers/mtd/Makefile
++++ b/drivers/mtd/Makefile
+@@ -9,6 +9,8 @@ mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o mtdchar.o
+
+ obj-y += parsers/
+
++obj-$(CONFIG_MTD_SPLIT) += mtdsplit/
++
+ # 'Users' - code which presents functionality to userspace.
+ obj-$(CONFIG_MTD_BLKDEVS) += mtd_blkdevs.o
+ obj-$(CONFIG_MTD_BLOCK) += mtdblock.o
+diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
+index d442fa94c872..f1ed12aae1fe 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
-@@ -15,10 +15,12 @@
+@@ -15,11 +15,13 @@
#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 <linux/of_platform.h>
#include "mtdcore.h"
+#include "mtdsplit/mtdsplit.h"
/*
* MTD methods which simply translate the effective address and pass through
-@@ -235,6 +237,146 @@ static int mtd_add_partition_attrs(struc
+@@ -236,6 +238,146 @@ static int mtd_add_partition_attrs(struct mtd_info *new)
return ret;
}
int mtd_add_partition(struct mtd_info *parent, const char *name,
long long offset, long long length)
{
-@@ -273,6 +415,7 @@ int mtd_add_partition(struct mtd_info *p
+@@ -274,6 +416,7 @@ int mtd_add_partition(struct mtd_info *parent, const char *name,
if (ret)
goto err_remove_part;
mtd_add_partition_attrs(child);
return 0;
-@@ -421,6 +564,7 @@ int add_mtd_partitions(struct mtd_info *
+@@ -422,6 +565,7 @@ int add_mtd_partitions(struct mtd_info *parent,
goto err_del_partitions;
}
mtd_add_partition_attrs(child);
/* Look for subpartitions */
-@@ -437,31 +581,6 @@ err_del_partitions:
+@@ -438,31 +582,6 @@ int add_mtd_partitions(struct mtd_info *parent,
return ret;
}
/*
* Many partition parsers just expected the core to kfree() all their data in
* one chunk. Do that by default.
---- a/include/linux/mtd/partitions.h
-+++ b/include/linux/mtd/partitions.h
-@@ -75,6 +75,12 @@ struct mtd_part_parser_data {
- * Functions dealing with the various ways of partitioning the space
- */
-
-+enum mtd_parser_type {
-+ MTD_PARSER_TYPE_DEVICE = 0,
-+ MTD_PARSER_TYPE_ROOTFS,
-+ MTD_PARSER_TYPE_FIRMWARE,
-+};
-+
- struct mtd_part_parser {
- struct list_head list;
- struct module *owner;
-@@ -83,6 +89,7 @@ struct mtd_part_parser {
- int (*parse_fn)(struct mtd_info *, const struct mtd_partition **,
- struct mtd_part_parser_data *);
- void (*cleanup)(const struct mtd_partition *pparts, int nr_parts);
-+ enum mtd_parser_type type;
- };
-
- /* Container for passing around a set of parsed partitions */
---- a/drivers/mtd/Makefile
-+++ b/drivers/mtd/Makefile
-@@ -9,6 +9,8 @@ mtd-y := mtdcore.o mtdsuper.o mtdconc
-
- obj-y += parsers/
-
-+obj-$(CONFIG_MTD_SPLIT) += mtdsplit/
-+
- # 'Users' - code which presents functionality to userspace.
- obj-$(CONFIG_MTD_BLKDEVS) += mtd_blkdevs.o
- obj-$(CONFIG_MTD_BLOCK) += mtdblock.o
+diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
+index 8a2c60235ebb..b092bf6ff97d 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
-@@ -613,6 +613,24 @@ static inline void mtd_align_erase_req(s
+@@ -613,6 +613,24 @@ static inline void mtd_align_erase_req(struct mtd_info *mtd,
req->len += mtd->erasesize - mod;
}
static inline uint32_t mtd_div_by_ws(uint64_t sz, struct mtd_info *mtd)
{
if (mtd->writesize_shift)
-@@ -685,6 +703,13 @@ extern void __put_mtd_device(struct mtd_
+@@ -685,6 +703,13 @@ extern void __put_mtd_device(struct mtd_info *mtd);
extern struct mtd_info *get_mtd_device_nm(const char *name);
extern void put_mtd_device(struct mtd_info *mtd);
struct mtd_notifier {
void (*add)(struct mtd_info *mtd);
+diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
+index b74a539ec581..65ba0dbf961d 100644
+--- a/include/linux/mtd/partitions.h
++++ b/include/linux/mtd/partitions.h
+@@ -75,6 +75,12 @@ struct mtd_part_parser_data {
+ * Functions dealing with the various ways of partitioning the space
+ */
+
++enum mtd_parser_type {
++ MTD_PARSER_TYPE_DEVICE = 0,
++ MTD_PARSER_TYPE_ROOTFS,
++ MTD_PARSER_TYPE_FIRMWARE,
++};
++
+ struct mtd_part_parser {
+ struct list_head list;
+ struct module *owner;
+@@ -83,6 +89,7 @@ struct mtd_part_parser {
+ int (*parse_fn)(struct mtd_info *, const struct mtd_partition **,
+ struct mtd_part_parser_data *);
+ void (*cleanup)(const struct mtd_partition *pparts, int nr_parts);
++ enum mtd_parser_type type;
+ };
+
+ /* Container for passing around a set of parsed partitions */
+--
+
projects / openwrt / staging / jow.git / blobdiff