kernel: move uImage.FIT partition parser to mediatek target

The partition parser approach has been rejected upstream, it will be
replaced by a small block driver which is the solution suggestion by
upstream maintainers.
As the partition parser has only been used by the mediatek target, as
a first step, move it there.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 0 insertions, 214 deletions

diff --git a/target/linux/generic/hack-5.15/410-block-fit-partition-parser.patch b/target/linux/generic/hack-5.15/410-block-fit-partition-parser.patch
deleted file mode 100644
index 13a16b6fa0..0000000000
--- a/target/linux/generic/hack-5.15/410-block-fit-partition-parser.patch
+++ /dev/null
@@ -1,214 +0,0 @@
-From 69357074558daf6ff24c9f58714935e9e095a865 Mon Sep 17 00:00:00 2001
-From: OpenWrt community <openwrt-devel@lists.openwrt.org>
-Date: Wed, 13 Jul 2022 13:37:33 +0200
-Subject: [PATCH] kernel: add block fit partition parser
-
----
- block/blk.h                     |  2 ++
- block/partitions/Kconfig        |  7 +++++++
- block/partitions/Makefile       |  1 +
- block/partitions/check.h        |  3 +++
- block/partitions/core.c         | 17 +++++++++++++++++
- block/partitions/efi.c          |  8 ++++++++
- block/partitions/efi.h          |  3 +++
- block/partitions/msdos.c        | 10 ++++++++++
- drivers/mtd/mtd_blkdevs.c       |  2 ++
- drivers/mtd/ubi/block.c         |  3 +++
- include/linux/msdos_partition.h |  1 +
- 11 files changed, 57 insertions(+)
-
---- a/block/blk.h
-+++ b/block/blk.h
-@@ -354,6 +354,8 @@ void blk_free_ext_minor(unsigned int min
- #define ADDPART_FLAG_NONE	0
- #define ADDPART_FLAG_RAID	1
- #define ADDPART_FLAG_WHOLEDISK	2
-+#define ADDPART_FLAG_READONLY	4
-+#define ADDPART_FLAG_ROOTDEV	8
- int bdev_add_partition(struct gendisk *disk, int partno, sector_t start,
- 		sector_t length);
- int bdev_del_partition(struct gendisk *disk, int partno);
---- a/block/partitions/Kconfig
-+++ b/block/partitions/Kconfig
-@@ -101,6 +101,13 @@ config ATARI_PARTITION
- 	  Say Y here if you would like to use hard disks under Linux which
- 	  were partitioned under the Atari OS.
- 
-+config FIT_PARTITION
-+	bool "Flattened-Image-Tree (FIT) partition support" if PARTITION_ADVANCED
-+	default n
-+	help
-+	  Say Y here if your system needs to mount the filesystem part of
-+	  a Flattened-Image-Tree (FIT) image commonly used with Das U-Boot.
-+
- config IBM_PARTITION
- 	bool "IBM disk label and partition support"
- 	depends on PARTITION_ADVANCED && S390
---- a/block/partitions/Makefile
-+++ b/block/partitions/Makefile
-@@ -8,6 +8,7 @@ obj-$(CONFIG_ACORN_PARTITION) += acorn.o
- obj-$(CONFIG_AMIGA_PARTITION) += amiga.o
- obj-$(CONFIG_ATARI_PARTITION) += atari.o
- obj-$(CONFIG_AIX_PARTITION) += aix.o
-+obj-$(CONFIG_FIT_PARTITION) += fit.o
- obj-$(CONFIG_CMDLINE_PARTITION) += cmdline.o
- obj-$(CONFIG_MAC_PARTITION) += mac.o
- obj-$(CONFIG_LDM_PARTITION) += ldm.o
---- a/block/partitions/check.h
-+++ b/block/partitions/check.h
-@@ -58,6 +58,7 @@ int amiga_partition(struct parsed_partit
- int atari_partition(struct parsed_partitions *state);
- int cmdline_partition(struct parsed_partitions *state);
- int efi_partition(struct parsed_partitions *state);
-+int fit_partition(struct parsed_partitions *state);
- int ibm_partition(struct parsed_partitions *);
- int karma_partition(struct parsed_partitions *state);
- int ldm_partition(struct parsed_partitions *state);
-@@ -68,3 +69,5 @@ int sgi_partition(struct parsed_partitio
- int sun_partition(struct parsed_partitions *state);
- int sysv68_partition(struct parsed_partitions *state);
- int ultrix_partition(struct parsed_partitions *state);
-+
-+int parse_fit_partitions(struct parsed_partitions *state, u64 start_sector, u64 nr_sectors, int *slot, int add_remain);
---- a/block/partitions/core.c
-+++ b/block/partitions/core.c
-@@ -12,6 +12,10 @@
- #include <linux/vmalloc.h>
- #include <linux/blktrace_api.h>
- #include <linux/raid/detect.h>
-+#ifdef CONFIG_FIT_PARTITION
-+#include <linux/root_dev.h>
-+#endif
-+
- #include "check.h"
- 
- static int (*check_part[])(struct parsed_partitions *) = {
-@@ -48,6 +52,9 @@ static int (*check_part[])(struct parsed
- #ifdef CONFIG_EFI_PARTITION
- 	efi_partition,		/* this must come before msdos */
- #endif
-+#ifdef CONFIG_FIT_PARTITION
-+	fit_partition,
-+#endif
- #ifdef CONFIG_SGI_PARTITION
- 	sgi_partition,
- #endif
-@@ -408,6 +415,11 @@ static struct block_device *add_partitio
- 			goto out_del;
- 	}
- 
-+#ifdef CONFIG_FIT_PARTITION
-+	if (flags & ADDPART_FLAG_READONLY)
-+		bdev->bd_read_only = true;
-+#endif
-+
- 	/* everything is up and running, commence */
- 	err = xa_insert(&disk->part_tbl, partno, bdev, GFP_KERNEL);
- 	if (err)
-@@ -595,6 +607,11 @@ static bool blk_add_partition(struct gen
- 	    (state->parts[p].flags & ADDPART_FLAG_RAID))
- 		md_autodetect_dev(part->bd_dev);
- 
-+#ifdef CONFIG_FIT_PARTITION
-+	if ((state->parts[p].flags & ADDPART_FLAG_ROOTDEV) && ROOT_DEV == 0)
-+		ROOT_DEV = part->bd_dev;
-+#endif
-+
- 	return true;
- }
- 
---- a/block/partitions/efi.c
-+++ b/block/partitions/efi.c
-@@ -716,6 +716,9 @@ int efi_partition(struct parsed_partitio
- 	gpt_entry *ptes = NULL;
- 	u32 i;
- 	unsigned ssz = queue_logical_block_size(state->disk->queue) / 512;
-+#ifdef CONFIG_FIT_PARTITION
-+	u32 extra_slot = 64;
-+#endif
- 
- 	if (!find_valid_gpt(state, &gpt, &ptes) || !gpt || !ptes) {
- 		kfree(gpt);
-@@ -749,6 +752,11 @@ int efi_partition(struct parsed_partitio
- 				ARRAY_SIZE(ptes[i].partition_name));
- 		utf16_le_to_7bit(ptes[i].partition_name, label_max, info->volname);
- 		state->parts[i + 1].has_info = true;
-+#ifdef CONFIG_FIT_PARTITION
-+		/* If this is a U-Boot FIT volume it may have subpartitions */
-+		if (!efi_guidcmp(ptes[i].partition_type_guid, PARTITION_LINUX_FIT_GUID))
-+			(void) parse_fit_partitions(state, start * ssz, size * ssz, &extra_slot, 1);
-+#endif
- 	}
- 	kfree(ptes);
- 	kfree(gpt);
---- a/block/partitions/efi.h
-+++ b/block/partitions/efi.h
-@@ -52,6 +52,9 @@
- #define PARTITION_LINUX_LVM_GUID \
-     EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
-               0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
-+#define PARTITION_LINUX_FIT_GUID \
-+    EFI_GUID( 0xcae9be83, 0xb15f, 0x49cc, \
-+              0x86, 0x3f, 0x08, 0x1b, 0x74, 0x4a, 0x2d, 0x93)
- 
- typedef struct _gpt_header {
- 	__le64 signature;
---- a/block/partitions/msdos.c
-+++ b/block/partitions/msdos.c
-@@ -564,6 +564,15 @@ static void parse_minix(struct parsed_pa
- #endif /* CONFIG_MINIX_SUBPARTITION */
- }
- 
-+static void parse_fit_mbr(struct parsed_partitions *state,
-+			  sector_t offset, sector_t size, int origin)
-+{
-+#ifdef CONFIG_FIT_PARTITION
-+	u32 extra_slot = 64;
-+	(void) parse_fit_partitions(state, offset, size, &extra_slot, 1);
-+#endif /* CONFIG_FIT_PARTITION */
-+}
-+
- static struct {
- 	unsigned char id;
- 	void (*parse)(struct parsed_partitions *, sector_t, sector_t, int);
-@@ -575,6 +584,7 @@ static struct {
- 	{UNIXWARE_PARTITION, parse_unixware},
- 	{SOLARIS_X86_PARTITION, parse_solaris_x86},
- 	{NEW_SOLARIS_X86_PARTITION, parse_solaris_x86},
-+	{FIT_PARTITION, parse_fit_mbr},
- 	{0, NULL},
- };
- 
---- a/drivers/mtd/mtd_blkdevs.c
-+++ b/drivers/mtd/mtd_blkdevs.c
-@@ -345,6 +345,8 @@ int add_mtd_blktrans_dev(struct mtd_blkt
- 	gd->first_minor = (new->devnum) << tr->part_bits;
- 	gd->minors = 1 << tr->part_bits;
- 	gd->fops = &mtd_block_ops;
-+	if (IS_ENABLED(CONFIG_FIT_PARTITION) && !mtd_type_is_nand(new->mtd))
-+		gd->flags |= GENHD_FL_EXT_DEVT;
- 
- 	if (tr->part_bits)
- 		if (new->devnum < 26)
---- a/drivers/mtd/ubi/block.c
-+++ b/drivers/mtd/ubi/block.c
-@@ -428,6 +428,9 @@ int ubiblock_create(struct ubi_volume_in
- 		goto out_cleanup_disk;
- 	}
- 	gd->private_data = dev;
-+#ifdef CONFIG_FIT_PARTITION
-+	gd->flags |= GENHD_FL_EXT_DEVT;
-+#endif
- 	sprintf(gd->disk_name, "ubiblock%d_%d", dev->ubi_num, dev->vol_id);
- 	set_capacity(gd, disk_capacity);
- 	dev->gd = gd;
---- a/include/linux/msdos_partition.h
-+++ b/include/linux/msdos_partition.h
-@@ -31,6 +31,7 @@ enum msdos_sys_ind {
- 	LINUX_LVM_PARTITION = 0x8e,
- 	LINUX_RAID_PARTITION = 0xfd,	/* autodetect RAID partition */
- 
-+	FIT_PARTITION = 0x2e,		/* U-Boot uImage.FIT */
- 	SOLARIS_X86_PARTITION =	0x82,	/* also Linux swap partitions */
- 	NEW_SOLARIS_X86_PARTITION = 0xbf,
-