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Add kernel 6.7 support for generic and x86_64 bases on mptcp_net-next tree
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153 changed files with 32655 additions and 16 deletions
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@ -0,0 +1,229 @@
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From: Florian Fainelli <f.fainelli@gmail.com>
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Subject: Add myloader partition table parser
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[john@phozen.org: shoud be upstreamable]
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lede-commit: d8bf22859b51faa09d22c056fe221a45d2f7a3b8
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Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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[adjust for kernel 5.4, add myloader.c to patch]
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Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
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--- a/drivers/mtd/parsers/Kconfig
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+++ b/drivers/mtd/parsers/Kconfig
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@@ -67,6 +67,22 @@ config MTD_CMDLINE_PARTS
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If unsure, say 'N'.
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+config MTD_MYLOADER_PARTS
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+ tristate "MyLoader partition parsing"
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+ depends on ADM5120 || ATH25 || ATH79
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+ help
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+ MyLoader is a bootloader which allows the user to define partitions
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+ in flash devices, by putting a table in the second erase block
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+ on the device, similar to a partition table. This table gives the
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+ offsets and lengths of the user defined partitions.
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+
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+ If you need code which can detect and parse these tables, and
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+ register MTD 'partitions' corresponding to each image detected,
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+ enable this option.
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+
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+ You will still need the parsing functions to be called by the driver
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+ for your particular device. It won't happen automatically.
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+
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config MTD_OF_PARTS
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tristate "OpenFirmware (device tree) partitioning parser"
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default y
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--- a/drivers/mtd/parsers/Makefile
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+++ b/drivers/mtd/parsers/Makefile
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@@ -4,6 +4,7 @@ obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm4
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obj-$(CONFIG_MTD_BCM63XX_PARTS) += bcm63xxpart.o
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obj-$(CONFIG_MTD_BRCM_U_BOOT) += brcm_u-boot.o
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obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
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+obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
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obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o
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ofpart-y += ofpart_core.o
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ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908) += ofpart_bcm4908.o
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--- /dev/null
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+++ b/drivers/mtd/parsers/myloader.c
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@@ -0,0 +1,181 @@
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+/*
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+ * Parse MyLoader-style flash partition tables and produce a Linux partition
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+ * array to match.
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+ *
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+ * Copyright (C) 2007-2009 Gabor Juhos <juhosg@openwrt.org>
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+ *
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+ * This file was based on drivers/mtd/redboot.c
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+ * Author: Red Hat, Inc. - David Woodhouse <dwmw2@cambridge.redhat.com>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/version.h>
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+#include <linux/slab.h>
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+#include <linux/init.h>
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+#include <linux/vmalloc.h>
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+#include <linux/mtd/mtd.h>
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+#include <linux/mtd/partitions.h>
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+#include <linux/byteorder/generic.h>
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+#include <linux/myloader.h>
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+
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+#define BLOCK_LEN_MIN 0x10000
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+#define PART_NAME_LEN 32
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+
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+struct part_data {
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+ struct mylo_partition_table tab;
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+ char names[MYLO_MAX_PARTITIONS][PART_NAME_LEN];
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+};
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+
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+static int myloader_parse_partitions(struct mtd_info *master,
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+ const struct mtd_partition **pparts,
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+ struct mtd_part_parser_data *data)
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+{
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+ struct part_data *buf;
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+ struct mylo_partition_table *tab;
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+ struct mylo_partition *part;
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+ struct mtd_partition *mtd_parts;
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+ struct mtd_partition *mtd_part;
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+ int num_parts;
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+ int ret, i;
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+ size_t retlen;
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+ char *names;
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+ unsigned long offset;
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+ unsigned long blocklen;
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+
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+ buf = vmalloc(sizeof(*buf));
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+ if (!buf) {
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+ return -ENOMEM;
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+ goto out;
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+ }
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+ tab = &buf->tab;
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+
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+ blocklen = master->erasesize;
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+ if (blocklen < BLOCK_LEN_MIN)
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+ blocklen = BLOCK_LEN_MIN;
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+
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+ offset = blocklen;
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+
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+ /* Find the partition table */
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+ for (i = 0; i < 4; i++, offset += blocklen) {
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+ printk(KERN_DEBUG "%s: searching for MyLoader partition table"
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+ " at offset 0x%lx\n", master->name, offset);
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+
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+ ret = mtd_read(master, offset, sizeof(*buf), &retlen,
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+ (void *)buf);
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+ if (ret)
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+ goto out_free_buf;
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+
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+ if (retlen != sizeof(*buf)) {
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+ ret = -EIO;
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+ goto out_free_buf;
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+ }
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+
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+ /* Check for Partition Table magic number */
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+ if (tab->magic == le32_to_cpu(MYLO_MAGIC_PARTITIONS))
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+ break;
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+
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+ }
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+
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+ if (tab->magic != le32_to_cpu(MYLO_MAGIC_PARTITIONS)) {
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+ printk(KERN_DEBUG "%s: no MyLoader partition table found\n",
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+ master->name);
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+ ret = 0;
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+ goto out_free_buf;
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+ }
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+
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+ /* The MyLoader and the Partition Table is always present */
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+ num_parts = 2;
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+
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+ /* Detect number of used partitions */
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+ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
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+ part = &tab->partitions[i];
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+
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+ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
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+ continue;
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+
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+ num_parts++;
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+ }
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+
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+ mtd_parts = kzalloc((num_parts * sizeof(*mtd_part) +
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+ num_parts * PART_NAME_LEN), GFP_KERNEL);
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+
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+ if (!mtd_parts) {
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+ ret = -ENOMEM;
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+ goto out_free_buf;
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+ }
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+
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+ mtd_part = mtd_parts;
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+ names = (char *)&mtd_parts[num_parts];
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+
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+ strncpy(names, "myloader", PART_NAME_LEN);
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+ mtd_part->name = names;
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+ mtd_part->offset = 0;
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+ mtd_part->size = offset;
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+ mtd_part->mask_flags = MTD_WRITEABLE;
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+ mtd_part++;
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+ names += PART_NAME_LEN;
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+
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+ strncpy(names, "partition_table", PART_NAME_LEN);
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+ mtd_part->name = names;
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+ mtd_part->offset = offset;
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+ mtd_part->size = blocklen;
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+ mtd_part->mask_flags = MTD_WRITEABLE;
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+ mtd_part++;
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+ names += PART_NAME_LEN;
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+
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+ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
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+ part = &tab->partitions[i];
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+
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+ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
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+ continue;
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+
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+ if ((buf->names[i][0]) && (buf->names[i][0] != '\xff'))
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+ strncpy(names, buf->names[i], PART_NAME_LEN);
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+ else
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+ snprintf(names, PART_NAME_LEN, "partition%d", i);
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+
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+ mtd_part->offset = le32_to_cpu(part->addr);
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+ mtd_part->size = le32_to_cpu(part->size);
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+ mtd_part->name = names;
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+ mtd_part++;
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+ names += PART_NAME_LEN;
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+ }
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+
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+ *pparts = mtd_parts;
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+ ret = num_parts;
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+
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+ out_free_buf:
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+ vfree(buf);
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+ out:
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+ return ret;
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+}
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+
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+static struct mtd_part_parser myloader_mtd_parser = {
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+ .owner = THIS_MODULE,
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+ .parse_fn = myloader_parse_partitions,
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+ .name = "MyLoader",
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+};
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+
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+static int __init myloader_mtd_parser_init(void)
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+{
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+ register_mtd_parser(&myloader_mtd_parser);
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+
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+ return 0;
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+}
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+
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+static void __exit myloader_mtd_parser_exit(void)
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+{
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+ deregister_mtd_parser(&myloader_mtd_parser);
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+}
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+
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+module_init(myloader_mtd_parser_init);
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+module_exit(myloader_mtd_parser_exit);
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+
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+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
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+MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
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+MODULE_LICENSE("GPL v2");
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