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Code Issues

kernel: merge two mtdpart.c patches

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It does not make sense to add some code and remove is 4 patches later.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 42673
This commit is contained in:
Rafał Miłecki 2014-09-27 09:44:24 +00:00
parent 8e525a43b4
commit 71a03fb168
5 changed files with 24 additions and 115 deletions
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58
target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch
View File

@ -1,6 +1,6 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -12,6 +12,32 @@ menuconfig MTD
@@ -12,6 +12,33 @@ menuconfig MTD
if MTD
@ -12,6 +12,7 @@
+
+config MTD_ROOTFS_SPLIT
+ bool "Automatically split 'rootfs' partition for squashfs"
+ select MTD_SPLIT
+ default y
+
+config MTD_SPLIT_FIRMWARE
@ -35,7 +36,7 @@
depends on m
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -29,6 +29,7 @@
@@ -29,9 +29,11 @@
#include <linux/kmod.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@ -43,7 +44,11 @@
#include <linux/err.h>
#include "mtdcore.h"
@@ -45,13 +46,14 @@ struct mtd_part {
+#include "mtdsplit.h"
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
@@ -45,13 +47,14 @@ struct mtd_part {
struct list_head list;
};
@ -59,7 +64,7 @@
/*
* MTD methods which simply translate the effective address and pass through
* to the _real_ device.
@@ -534,8 +536,10 @@ out_register:
@@ -534,8 +537,10 @@ out_register:
return slave;
}
@ -72,7 +77,7 @@
{
struct mtd_partition part;
struct mtd_part *p, *new;
@@ -567,21 +571,24 @@ int mtd_add_partition(struct mtd_info *m
@@ -567,21 +572,24 @@ int mtd_add_partition(struct mtd_info *m
end = offset + length;
mutex_lock(&mtd_partitions_mutex);
@ -107,7 +112,7 @@
return ret;
err_inv:
@@ -591,6 +598,12 @@ err_inv:
@@ -591,6 +599,12 @@ err_inv:
}
EXPORT_SYMBOL_GPL(mtd_add_partition);
@ -120,7 +125,7 @@
int mtd_del_partition(struct mtd_info *master, int partno)
{
struct mtd_part *slave, *next;
@@ -614,6 +627,144 @@ int mtd_del_partition(struct mtd_info *m
@@ -614,6 +628,117 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@ -135,43 +140,16 @@
+ return len;
+}
+
+#define ROOTFS_SPLIT_NAME "rootfs_data"
+
+struct squashfs_super_block {
+ __le32 s_magic;
+ __le32 pad0[9];
+ __le64 bytes_used;
+};
+
+
+static int split_squashfs(struct mtd_info *master, int offset, int *split_offset)
+{
+ struct squashfs_super_block sb;
+ size_t squashfs_len;
+ int len, ret;
+
+ ret = mtd_read(master, offset, sizeof(sb), &len, (void *) &sb);
+ if (ret || (len != sizeof(sb))) {
+ printk(KERN_ALERT "split_squashfs: error occured while reading "
+ "from \"%s\"\n", master->name);
+ return -EINVAL;
+ }
+ ret = mtd_get_squashfs_len(master, offset, &squashfs_len);
+ if (ret)
+ return ret;
+
+ if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) {
+ printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n",
+ master->name);
+ *split_offset = 0;
+ return 0;
+ }
+
+ if (le64_to_cpu((sb.bytes_used)) <= 0) {
+ printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n",
+ master->name);
+ *split_offset = 0;
+ return 0;
+ }
+
+ len = (u32) le64_to_cpu(sb.bytes_used);
+ len = mtd_pad_erasesize(master, offset, len);
+ len = mtd_pad_erasesize(master, offset, squashfs_len);
+ *split_offset = offset + len;
+
+ return 0;
@ -265,7 +243,7 @@
/*
* 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
@@ -643,6 +794,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -643,6 +768,7 @@ int add_mtd_partitions(struct mtd_info *
mutex_unlock(&mtd_partitions_mutex);
add_mtd_device(&slave->mtd);

4
target/linux/generic/patches-3.14/401-mtd-add-support-for-different-partition-parser-types.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
@@ -824,6 +824,30 @@ static struct mtd_part_parser *get_parti
@@ -798,6 +798,30 @@ static struct mtd_part_parser *get_parti
#define put_partition_parser(p) do { module_put((p)->owner); } while (0)
@ -42,7 +42,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
void register_mtd_parser(struct mtd_part_parser *p)
{
spin_lock(&part_parser_lock);
@@ -897,6 +921,38 @@ int parse_mtd_partitions(struct mtd_info
@@ -871,6 +895,38 @@ int parse_mtd_partitions(struct mtd_info
return ret;
}

6
target/linux/generic/patches-3.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
View File

@ -1,6 +1,6 @@
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -627,6 +627,37 @@ int mtd_del_partition(struct mtd_info *m
@@ -628,6 +628,37 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
@ -38,7 +38,7 @@
static inline unsigned long
mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
{
@@ -686,6 +717,10 @@ static void split_rootfs_data(struct mtd
@@ -660,6 +691,10 @@ static void split_rootfs_data(struct mtd
unsigned int split_size;
int ret;
@ -49,7 +49,7 @@
ret = split_squashfs(master, part->offset, &split_offset);
if (ret)
return;
@@ -735,6 +770,12 @@ static void split_uimage(struct mtd_info
@@ -709,6 +744,12 @@ static void split_uimage(struct mtd_info
static void split_firmware(struct mtd_info *master, struct mtd_part *part)
{

2
target/linux/generic/patches-3.14/403-mtd-hook-mtdsplit-to-Kbuild.patch
View File

@ -1,6 +1,6 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -36,6 +36,11 @@ config MTD_UIMAGE_SPLIT
@@ -37,6 +37,11 @@ config MTD_UIMAGE_SPLIT
depends on MTD_SPLIT_FIRMWARE
default y

69
target/linux/generic/patches-3.14/404-mtd-use-mtd_get_squashfs_len-in-split_squasfh.patch
View File

@ -1,69 +0,0 @@
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -33,6 +33,7 @@
#include <linux/err.h>
#include "mtdcore.h"
+#include "mtdsplit.h"
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
@@ -669,43 +670,16 @@ mtd_pad_erasesize(struct mtd_info *mtd,
return len;
}
-#define ROOTFS_SPLIT_NAME "rootfs_data"
-
-struct squashfs_super_block {
- __le32 s_magic;
- __le32 pad0[9];
- __le64 bytes_used;
-};
-
-
static int split_squashfs(struct mtd_info *master, int offset, int *split_offset)
{
- struct squashfs_super_block sb;
+ size_t squashfs_len;
int len, ret;
- ret = mtd_read(master, offset, sizeof(sb), &len, (void *) &sb);
- if (ret || (len != sizeof(sb))) {
- printk(KERN_ALERT "split_squashfs: error occured while reading "
- "from \"%s\"\n", master->name);
- return -EINVAL;
- }
-
- if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) {
- printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n",
- master->name);
- *split_offset = 0;
- return 0;
- }
-
- if (le64_to_cpu((sb.bytes_used)) <= 0) {
- printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n",
- master->name);
- *split_offset = 0;
- return 0;
- }
+ ret = mtd_get_squashfs_len(master, offset, &squashfs_len);
+ if (ret)
+ return ret;
- len = (u32) le64_to_cpu(sb.bytes_used);
- len = mtd_pad_erasesize(master, offset, len);
+ len = mtd_pad_erasesize(master, offset, squashfs_len);
*split_offset = offset + len;
return 0;
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -20,6 +20,7 @@ config MTD_ROOTFS_ROOT_DEV
config MTD_ROOTFS_SPLIT
bool "Automatically split 'rootfs' partition for squashfs"
+ select MTD_SPLIT
default y
config MTD_SPLIT_FIRMWARE