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kernel: backport mtd patch for minor partitioning cleanup

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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki
2018-05-12 23:12:32 +02:00
parent a3096b4b33
commit 070693477a
14 changed files with 364 additions and 28 deletions
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168
target/linux/generic/backport-4.14/042-v4.18-0001-mtd-move-code-adding-registering-partitions-to-the-p.patch Normal file
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@@ -0,0 +1,168 @@
From 5ac67ce36cfe38b4c104a42ce52c5c8d526f1c95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 27 Mar 2018 22:35:41 +0200
Subject: [PATCH] mtd: move code adding (registering) partitions to the
parse_mtd_partitions()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This commit slightly simplifies the code. Every parse_mtd_partitions()
caller (out of two existing ones) had to add partitions & cleanup parser
on its own. This moves that responsibility into the function.
That change also allows dropping struct mtd_partitions argument.
There is one minor behavior change caused by this cleanup. If
parse_mtd_partitions() fails to add partitions (add_mtd_partitions()
return an error) then mtd_device_parse_register() will still try to
add (register) fallback partitions. It's a real corner case affecting
one of uncommon error paths and shouldn't cause any harm.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
---
drivers/mtd/mtdcore.c | 14 ++++----------
drivers/mtd/mtdcore.h | 1 -
drivers/mtd/mtdpart.c | 44 ++++++++++++++++----------------------------
3 files changed, 20 insertions(+), 39 deletions(-)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -686,7 +686,6 @@ int mtd_device_parse_register(struct mtd
const struct mtd_partition *parts,
int nr_parts)
{
- struct mtd_partitions parsed = { };
int ret;
mtd_set_dev_defaults(mtd);
@@ -698,13 +697,10 @@ int mtd_device_parse_register(struct mtd
}
/* Prefer parsed partitions over driver-provided fallback */
- ret = parse_mtd_partitions(mtd, types, &parsed, parser_data);
- if (!ret && parsed.nr_parts) {
- parts = parsed.parts;
- nr_parts = parsed.nr_parts;
- }
-
- if (nr_parts)
+ ret = parse_mtd_partitions(mtd, types, parser_data);
+ if (ret > 0)
+ ret = 0;
+ else if (nr_parts)
ret = add_mtd_partitions(mtd, parts, nr_parts);
else if (!device_is_registered(&mtd->dev))
ret = add_mtd_device(mtd);
@@ -730,8 +726,6 @@ int mtd_device_parse_register(struct mtd
}
out:
- /* Cleanup any parsed partitions */
- mtd_part_parser_cleanup(&parsed);
if (ret && device_is_registered(&mtd->dev))
del_mtd_device(mtd);
--- a/drivers/mtd/mtdcore.h
+++ b/drivers/mtd/mtdcore.h
@@ -15,7 +15,6 @@ int del_mtd_partitions(struct mtd_info *
struct mtd_partitions;
int parse_mtd_partitions(struct mtd_info *master, const char * const *types,
- struct mtd_partitions *pparts,
struct mtd_part_parser_data *data);
void mtd_part_parser_cleanup(struct mtd_partitions *parts);
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -383,20 +383,7 @@ static inline void free_partition(struct
*/
static int mtd_parse_part(struct mtd_part *slave, const char *const *types)
{
- struct mtd_partitions parsed;
- int err;
-
- err = parse_mtd_partitions(&slave->mtd, types, &parsed, NULL);
- if (err)
- return err;
- else if (!parsed.nr_parts)
- return -ENOENT;
-
- err = add_mtd_partitions(&slave->mtd, parsed.parts, parsed.nr_parts);
-
- mtd_part_parser_cleanup(&parsed);
-
- return err;
+ return parse_mtd_partitions(&slave->mtd, types, NULL);
}
static struct mtd_part *allocate_partition(struct mtd_info *parent,
@@ -981,30 +968,27 @@ static int mtd_part_of_parse(struct mtd_
}
/**
- * parse_mtd_partitions - parse MTD partitions
+ * parse_mtd_partitions - parse and register MTD partitions
+ *
* @master: the master partition (describes whole MTD device)
* @types: names of partition parsers to try or %NULL
- * @pparts: info about partitions found is returned here
* @data: MTD partition parser-specific data
*
- * This function tries to find partition on MTD device @master. It uses MTD
- * partition parsers, specified in @types. However, if @types is %NULL, then
- * the default list of parsers is used. The default list contains only the
+ * This function tries to find & register partitions on MTD device @master. It
+ * uses MTD partition parsers, specified in @types. However, if @types is %NULL,
+ * then the default list of parsers is used. The default list contains only the
* "cmdlinepart" and "ofpart" parsers ATM.
* Note: If there are more then one parser in @types, the kernel only takes the
* partitions parsed out by the first parser.
*
* This function may return:
* o a negative error code in case of failure
- * o zero otherwise, and @pparts will describe the partitions, number of
- * partitions, and the parser which parsed them. Caller must release
- * resources with mtd_part_parser_cleanup() when finished with the returned
- * data.
+ * o number of found partitions otherwise
*/
int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
- struct mtd_partitions *pparts,
struct mtd_part_parser_data *data)
{
+ struct mtd_partitions pparts = { };
struct mtd_part_parser *parser;
int ret, err = 0;
@@ -1018,7 +1002,7 @@ int parse_mtd_partitions(struct mtd_info
* handled in a separated function.
*/
if (!strcmp(*types, "ofpart")) {
- ret = mtd_part_of_parse(master, pparts);
+ ret = mtd_part_of_parse(master, &pparts);
} else {
pr_debug("%s: parsing partitions %s\n", master->name,
*types);
@@ -1029,13 +1013,17 @@ int parse_mtd_partitions(struct mtd_info
parser ? parser->name : NULL);
if (!parser)
continue;
- ret = mtd_part_do_parse(parser, master, pparts, data);
+ ret = mtd_part_do_parse(parser, master, &pparts, data);
if (ret <= 0)
mtd_part_parser_put(parser);
}
/* Found partitions! */
- if (ret > 0)
- return 0;
+ if (ret > 0) {
+ err = add_mtd_partitions(master, pparts.parts,
+ pparts.nr_parts);
+ mtd_part_parser_cleanup(&pparts);
+ return err ? err : pparts.nr_parts;
+ }
/*
* Stash the first error we see; only report it if no parser
* succeeds

168
target/linux/generic/backport-4.9/068-v4.18-0001-mtd-move-code-adding-registering-partitions-to-the-p.patch Normal file
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@@ -0,0 +1,168 @@
From 5ac67ce36cfe38b4c104a42ce52c5c8d526f1c95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 27 Mar 2018 22:35:41 +0200
Subject: [PATCH] mtd: move code adding (registering) partitions to the
parse_mtd_partitions()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This commit slightly simplifies the code. Every parse_mtd_partitions()
caller (out of two existing ones) had to add partitions & cleanup parser
on its own. This moves that responsibility into the function.
That change also allows dropping struct mtd_partitions argument.
There is one minor behavior change caused by this cleanup. If
parse_mtd_partitions() fails to add partitions (add_mtd_partitions()
return an error) then mtd_device_parse_register() will still try to
add (register) fallback partitions. It's a real corner case affecting
one of uncommon error paths and shouldn't cause any harm.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
---
drivers/mtd/mtdcore.c | 14 ++++----------
drivers/mtd/mtdcore.h | 1 -
drivers/mtd/mtdpart.c | 44 ++++++++++++++++----------------------------
3 files changed, 20 insertions(+), 39 deletions(-)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -676,7 +676,6 @@ int mtd_device_parse_register(struct mtd
const struct mtd_partition *parts,
int nr_parts)
{
- struct mtd_partitions parsed = { };
int ret;
mtd_set_dev_defaults(mtd);
@@ -688,13 +687,10 @@ int mtd_device_parse_register(struct mtd
}
/* Prefer parsed partitions over driver-provided fallback */
- ret = parse_mtd_partitions(mtd, types, &parsed, parser_data);
- if (!ret && parsed.nr_parts) {
- parts = parsed.parts;
- nr_parts = parsed.nr_parts;
- }
-
- if (nr_parts)
+ ret = parse_mtd_partitions(mtd, types, parser_data);
+ if (ret > 0)
+ ret = 0;
+ else if (nr_parts)
ret = add_mtd_partitions(mtd, parts, nr_parts);
else if (!device_is_registered(&mtd->dev))
ret = add_mtd_device(mtd);
@@ -720,8 +716,6 @@ int mtd_device_parse_register(struct mtd
}
out:
- /* Cleanup any parsed partitions */
- mtd_part_parser_cleanup(&parsed);
if (ret && device_is_registered(&mtd->dev))
del_mtd_device(mtd);
--- a/drivers/mtd/mtdcore.h
+++ b/drivers/mtd/mtdcore.h
@@ -14,7 +14,6 @@ int del_mtd_partitions(struct mtd_info *
struct mtd_partitions;
int parse_mtd_partitions(struct mtd_info *master, const char * const *types,
- struct mtd_partitions *pparts,
struct mtd_part_parser_data *data);
void mtd_part_parser_cleanup(struct mtd_partitions *parts);
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -383,20 +383,7 @@ static inline void free_partition(struct
*/
static int mtd_parse_part(struct mtd_part *slave, const char *const *types)
{
- struct mtd_partitions parsed;
- int err;
-
- err = parse_mtd_partitions(&slave->mtd, types, &parsed, NULL);
- if (err)
- return err;
- else if (!parsed.nr_parts)
- return -ENOENT;
-
- err = add_mtd_partitions(&slave->mtd, parsed.parts, parsed.nr_parts);
-
- mtd_part_parser_cleanup(&parsed);
-
- return err;
+ return parse_mtd_partitions(&slave->mtd, types, NULL);
}
static struct mtd_part *allocate_partition(struct mtd_info *parent,
@@ -973,30 +960,27 @@ static int mtd_part_of_parse(struct mtd_
}
/**
- * parse_mtd_partitions - parse MTD partitions
+ * parse_mtd_partitions - parse and register MTD partitions
+ *
* @master: the master partition (describes whole MTD device)
* @types: names of partition parsers to try or %NULL
- * @pparts: info about partitions found is returned here
* @data: MTD partition parser-specific data
*
- * This function tries to find partition on MTD device @master. It uses MTD
- * partition parsers, specified in @types. However, if @types is %NULL, then
- * the default list of parsers is used. The default list contains only the
+ * This function tries to find & register partitions on MTD device @master. It
+ * uses MTD partition parsers, specified in @types. However, if @types is %NULL,
+ * then the default list of parsers is used. The default list contains only the
* "cmdlinepart" and "ofpart" parsers ATM.
* Note: If there are more then one parser in @types, the kernel only takes the
* partitions parsed out by the first parser.
*
* This function may return:
* o a negative error code in case of failure
- * o zero otherwise, and @pparts will describe the partitions, number of
- * partitions, and the parser which parsed them. Caller must release
- * resources with mtd_part_parser_cleanup() when finished with the returned
- * data.
+ * o number of found partitions otherwise
*/
int parse_mtd_partitions(struct mtd_info *master, const char *const *types,
- struct mtd_partitions *pparts,
struct mtd_part_parser_data *data)
{
+ struct mtd_partitions pparts = { };
struct mtd_part_parser *parser;
int ret, err = 0;
@@ -1010,7 +994,7 @@ int parse_mtd_partitions(struct mtd_info
* handled in a separated function.
*/
if (!strcmp(*types, "ofpart")) {
- ret = mtd_part_of_parse(master, pparts);
+ ret = mtd_part_of_parse(master, &pparts);
} else {
pr_debug("%s: parsing partitions %s\n", master->name,
*types);
@@ -1021,13 +1005,17 @@ int parse_mtd_partitions(struct mtd_info
parser ? parser->name : NULL);
if (!parser)
continue;
- ret = mtd_part_do_parse(parser, master, pparts, data);
+ ret = mtd_part_do_parse(parser, master, &pparts, data);
if (ret <= 0)
mtd_part_parser_put(parser);
}
/* Found partitions! */
- if (ret > 0)
- return 0;
+ if (ret > 0) {
+ err = add_mtd_partitions(master, pparts.parts,
+ pparts.nr_parts);
+ mtd_part_parser_cleanup(&pparts);
+ return err ? err : pparts.nr_parts;
+ }
/*
* Stash the first error we see; only report it if no parser
* succeeds

8
target/linux/generic/pending-4.14/161-mtd-part-add-generic-parsing-of-linux-part-probe.patch
View File

@@ -104,7 +104,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
#include <linux/err.h>
#include <linux/of.h>
@@ -864,6 +865,32 @@ void deregister_mtd_parser(struct mtd_pa
@@ -851,6 +852,32 @@ void deregister_mtd_parser(struct mtd_pa
EXPORT_SYMBOL_GPL(deregister_mtd_parser);
/*
@@ -137,8 +137,8 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* Do not forget to update 'parse_mtd_partitions()' kerneldoc comment if you
* are changing this array!
*/
@@ -1007,6 +1034,13 @@ int parse_mtd_partitions(struct mtd_info
{
@@ -991,6 +1018,13 @@ int parse_mtd_partitions(struct mtd_info
struct mtd_partitions pparts = { };
struct mtd_part_parser *parser;
int ret, err = 0;
+ const char *const *types_of = NULL;
@@ -151,7 +151,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
if (!types)
types = default_mtd_part_types;
@@ -1043,6 +1077,7 @@ int parse_mtd_partitions(struct mtd_info
@@ -1031,6 +1065,7 @@ int parse_mtd_partitions(struct mtd_info
if (ret < 0 && !err)
err = ret;
}

6
target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch
View File

@@ -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.
@@ -687,6 +691,7 @@ int mtd_add_partition(struct mtd_info *p
@@ -674,6 +678,7 @@ 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);
@@ -765,6 +770,35 @@ int mtd_del_partition(struct mtd_info *m
@@ -752,6 +757,35 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@@ -104,7 +104,7 @@ 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
@@ -796,6 +830,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -783,6 +817,7 @@ 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

@@ -9,7 +9,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -1132,6 +1132,62 @@ void mtd_part_parser_cleanup(struct mtd_
@@ -1120,6 +1120,62 @@ 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

@@ -10,7 +10,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -770,6 +770,36 @@ int mtd_del_partition(struct mtd_info *m
@@ -757,6 +757,36 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@@ -47,7 +47,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -778,6 +808,7 @@ EXPORT_SYMBOL_GPL(mtd_del_partition);
@@ -765,6 +795,7 @@ EXPORT_SYMBOL_GPL(mtd_del_partition);
static void split_firmware(struct mtd_info *master, struct mtd_part *part)
{
@@ -55,7 +55,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
}
void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,
@@ -792,6 +823,12 @@ static void mtd_partition_split(struct m
@@ -779,6 +810,12 @@ static void mtd_partition_split(struct m
if (rootfs_found)
return;

4
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
@@ -800,6 +800,17 @@ run_parsers_by_type(struct mtd_part *sla
@@ -787,6 +787,17 @@ run_parsers_by_type(struct mtd_part *sla
return nr_parts;
}
@@ -29,7 +29,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -1242,6 +1253,24 @@ int mtd_is_partition(const struct mtd_in
@@ -1230,6 +1241,24 @@ int mtd_is_partition(const struct mtd_in
}
EXPORT_SYMBOL_GPL(mtd_is_partition);

2
target/linux/generic/pending-4.14/411-mtd-partial_eraseblock_write.patch
View File

@@ -107,7 +107,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
@@ -599,19 +668,22 @@ static struct mtd_part *allocate_partiti
@@ -586,19 +655,22 @@ static struct mtd_part *allocate_partiti
remainder = do_div(tmp, wr_alignment);
if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
/* Doesn't start on a boundary of major erase size */

8
target/linux/generic/pending-4.9/161-mtd-part-add-generic-parsing-of-linux-part-probe.patch
View File

@@ -114,7 +114,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
#include <linux/err.h>
#include <linux/of.h>
@@ -856,6 +857,42 @@ void deregister_mtd_parser(struct mtd_pa
@@ -843,6 +844,42 @@ void deregister_mtd_parser(struct mtd_pa
EXPORT_SYMBOL_GPL(deregister_mtd_parser);
/*
@@ -157,8 +157,8 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
* Do not forget to update 'parse_mtd_partitions()' kerneldoc comment if you
* are changing this array!
*/
@@ -999,6 +1036,13 @@ int parse_mtd_partitions(struct mtd_info
{
@@ -983,6 +1020,13 @@ int parse_mtd_partitions(struct mtd_info
struct mtd_partitions pparts = { };
struct mtd_part_parser *parser;
int ret, err = 0;
+ const char *const *types_of = NULL;
@@ -171,7 +171,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
if (!types)
types = default_mtd_part_types;
@@ -1035,6 +1079,7 @@ int parse_mtd_partitions(struct mtd_info
@@ -1023,6 +1067,7 @@ int parse_mtd_partitions(struct mtd_info
if (ret < 0 && !err)
err = ret;
}

6
target/linux/generic/pending-4.9/400-mtd-add-rootfs-split-support.patch
View File

@@ -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.
@@ -679,6 +683,7 @@ int mtd_add_partition(struct mtd_info *p
@@ -666,6 +670,7 @@ 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);
@@ -757,6 +762,35 @@ int mtd_del_partition(struct mtd_info *m
@@ -744,6 +749,35 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@@ -104,7 +104,7 @@ 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
@@ -788,6 +822,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -775,6 +809,7 @@ 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

@@ -9,7 +9,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -1134,6 +1134,62 @@ void mtd_part_parser_cleanup(struct mtd_
@@ -1122,6 +1122,62 @@ 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

@@ -10,7 +10,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -762,6 +762,36 @@ int mtd_del_partition(struct mtd_info *m
@@ -749,6 +749,36 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@@ -47,7 +47,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -770,6 +800,7 @@ EXPORT_SYMBOL_GPL(mtd_del_partition);
@@ -757,6 +787,7 @@ EXPORT_SYMBOL_GPL(mtd_del_partition);
static void split_firmware(struct mtd_info *master, struct mtd_part *part)
{
@@ -55,7 +55,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
}
void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,
@@ -784,6 +815,12 @@ static void mtd_partition_split(struct m
@@ -771,6 +802,12 @@ static void mtd_partition_split(struct m
if (rootfs_found)
return;

4
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
@@ -792,6 +792,17 @@ run_parsers_by_type(struct mtd_part *sla
@@ -779,6 +779,17 @@ run_parsers_by_type(struct mtd_part *sla
return nr_parts;
}
@@ -29,7 +29,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -1244,6 +1255,24 @@ int mtd_is_partition(const struct mtd_in
@@ -1232,6 +1243,24 @@ int mtd_is_partition(const struct mtd_in
}
EXPORT_SYMBOL_GPL(mtd_is_partition);

2
target/linux/generic/pending-4.9/411-mtd-partial_eraseblock_write.patch
View File

@@ -107,7 +107,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
instr->fail_addr -= part->offset;
@@ -591,19 +660,22 @@ static struct mtd_part *allocate_partiti
@@ -578,19 +647,22 @@ static struct mtd_part *allocate_partiti
remainder = do_div(tmp, wr_alignment);
if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
/* Doesn't start on a boundary of major erase size */