[OpenWrt-Devel] [PATCH][RFC] kernel: merge two mtdpart.c patches
Rafał Miłecki
zajec5 at gmail.com
Wed Sep 24 02:01:39 EDT 2014
It does not make sense to add some code and remove is 4 patches later.
Signed-off-by: Rafał Miłecki <zajec5 at gmail.com>
---
.../400-mtd-add-rootfs-split-support.patch | 58 ++++++------------
...port-for-different-partition-parser-types.patch | 4 +-
...mtd-parsers-for-rootfs-and-firmware-split.patch | 6 +-
.../403-mtd-hook-mtdsplit-to-Kbuild.patch | 2 +-
...use-mtd_get_squashfs_len-in-split_squasfh.patch | 69 ----------------------
5 files changed, 24 insertions(+), 115 deletions(-)
delete mode 100644 target/linux/generic/patches-3.14/404-mtd-use-mtd_get_squashfs_len-in-split_squasfh.patch
diff --git a/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch b/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch
index 22a07fc..4e68d8c 100644
--- a/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch
+++ b/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch
@@ -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;
-+ }
-+
-+ 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;
@@ -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);
diff --git a/target/linux/generic/patches-3.14/401-mtd-add-support-for-different-partition-parser-types.patch b/target/linux/generic/patches-3.14/401-mtd-add-support-for-different-partition-parser-types.patch
index 9addb8b..a434f6e 100644
--- a/target/linux/generic/patches-3.14/401-mtd-add-support-for-different-partition-parser-types.patch
+++ b/target/linux/generic/patches-3.14/401-mtd-add-support-for-different-partition-parser-types.patch
@@ -11,7 +11,7 @@ Signed-off-by: Gabor Juhos <juhosg at 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 at 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;
}
diff --git a/target/linux/generic/patches-3.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch b/target/linux/generic/patches-3.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
index a614094..92a3ee7 100644
--- a/target/linux/generic/patches-3.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
+++ b/target/linux/generic/patches-3.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
@@ -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)
{
diff --git a/target/linux/generic/patches-3.14/403-mtd-hook-mtdsplit-to-Kbuild.patch b/target/linux/generic/patches-3.14/403-mtd-hook-mtdsplit-to-Kbuild.patch
index c24f34c..be2ee69 100644
--- a/target/linux/generic/patches-3.14/403-mtd-hook-mtdsplit-to-Kbuild.patch
+++ b/target/linux/generic/patches-3.14/403-mtd-hook-mtdsplit-to-Kbuild.patch
@@ -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
diff --git a/target/linux/generic/patches-3.14/404-mtd-use-mtd_get_squashfs_len-in-split_squasfh.patch b/target/linux/generic/patches-3.14/404-mtd-use-mtd_get_squashfs_len-in-split_squasfh.patch
deleted file mode 100644
index a54b97b..0000000
--- a/target/linux/generic/patches-3.14/404-mtd-use-mtd_get_squashfs_len-in-split_squasfh.patch
+++ /dev/null
@@ -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
--
1.8.4.5
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