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-rw-r--r--target/linux/generic/backport-4.9/065-v4.13-0005-mtd-partitions-rename-master-to-the-parent-where-app.patch606
1 files changed, 606 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.9/065-v4.13-0005-mtd-partitions-rename-master-to-the-parent-where-app.patch b/target/linux/generic/backport-4.9/065-v4.13-0005-mtd-partitions-rename-master-to-the-parent-where-app.patch
new file mode 100644
index 0000000000..7951227654
--- /dev/null
+++ b/target/linux/generic/backport-4.9/065-v4.13-0005-mtd-partitions-rename-master-to-the-parent-where-app.patch
@@ -0,0 +1,606 @@
+From 0a9d72b69da6d8dae1abd7990c6c4c749846ef3e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
+Date: Wed, 21 Jun 2017 08:26:44 +0200
+Subject: [PATCH] mtd: partitions: rename "master" to the "parent" where
+ appropriate
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This prepares mtd subsystem for the new feature: subpartitions. In some
+cases flash device partition can be a container with extra subpartitions
+(volumes).
+
+So far there was a flat structure implemented. One master (flash device)
+could be partitioned into few partitions. Every partition got its master
+and it was enough to get things running.
+
+To support subpartitions we need to store pointer to the parent for each
+partition. This is required to implement more natural tree structure and
+handle all recursion and offsets calculation.
+
+To make code consistent this patch renamed "master" to the "parent" in
+places where we can be dealing with subpartitions.
+
+Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+Signed-off-by: Brian Norris <computersforpeace@gmail.com>
+---
+ drivers/mtd/mtdpart.c | 204 ++++++++++++++++++++++++++------------------------
+ 1 file changed, 105 insertions(+), 99 deletions(-)
+
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -37,10 +37,16 @@
+ static LIST_HEAD(mtd_partitions);
+ static DEFINE_MUTEX(mtd_partitions_mutex);
+
+-/* Our partition node structure */
++/**
++ * struct mtd_part - our partition node structure
++ *
++ * @mtd: struct holding partition details
++ * @parent: parent mtd - flash device or another partition
++ * @offset: partition offset relative to the *flash device*
++ */
+ struct mtd_part {
+ struct mtd_info mtd;
+- struct mtd_info *master;
++ struct mtd_info *parent;
+ uint64_t offset;
+ struct list_head list;
+ };
+@@ -67,15 +73,15 @@ static int part_read(struct mtd_info *mt
+ struct mtd_ecc_stats stats;
+ int res;
+
+- stats = part->master->ecc_stats;
+- res = part->master->_read(part->master, from + part->offset, len,
++ stats = part->parent->ecc_stats;
++ res = part->parent->_read(part->parent, from + part->offset, len,
+ retlen, buf);
+ if (unlikely(mtd_is_eccerr(res)))
+ mtd->ecc_stats.failed +=
+- part->master->ecc_stats.failed - stats.failed;
++ part->parent->ecc_stats.failed - stats.failed;
+ else
+ mtd->ecc_stats.corrected +=
+- part->master->ecc_stats.corrected - stats.corrected;
++ part->parent->ecc_stats.corrected - stats.corrected;
+ return res;
+ }
+
+@@ -84,7 +90,7 @@ static int part_point(struct mtd_info *m
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+
+- return part->master->_point(part->master, from + part->offset, len,
++ return part->parent->_point(part->parent, from + part->offset, len,
+ retlen, virt, phys);
+ }
+
+@@ -92,7 +98,7 @@ static int part_unpoint(struct mtd_info
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+
+- return part->master->_unpoint(part->master, from + part->offset, len);
++ return part->parent->_unpoint(part->parent, from + part->offset, len);
+ }
+
+ static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
+@@ -103,7 +109,7 @@ static unsigned long part_get_unmapped_a
+ struct mtd_part *part = mtd_to_part(mtd);
+
+ offset += part->offset;
+- return part->master->_get_unmapped_area(part->master, len, offset,
++ return part->parent->_get_unmapped_area(part->parent, len, offset,
+ flags);
+ }
+
+@@ -132,7 +138,7 @@ static int part_read_oob(struct mtd_info
+ return -EINVAL;
+ }
+
+- res = part->master->_read_oob(part->master, from + part->offset, ops);
++ res = part->parent->_read_oob(part->parent, from + part->offset, ops);
+ if (unlikely(res)) {
+ if (mtd_is_bitflip(res))
+ mtd->ecc_stats.corrected++;
+@@ -146,7 +152,7 @@ static int part_read_user_prot_reg(struc
+ size_t len, size_t *retlen, u_char *buf)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_read_user_prot_reg(part->master, from, len,
++ return part->parent->_read_user_prot_reg(part->parent, from, len,
+ retlen, buf);
+ }
+
+@@ -154,7 +160,7 @@ static int part_get_user_prot_info(struc
+ size_t *retlen, struct otp_info *buf)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_get_user_prot_info(part->master, len, retlen,
++ return part->parent->_get_user_prot_info(part->parent, len, retlen,
+ buf);
+ }
+
+@@ -162,7 +168,7 @@ static int part_read_fact_prot_reg(struc
+ size_t len, size_t *retlen, u_char *buf)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_read_fact_prot_reg(part->master, from, len,
++ return part->parent->_read_fact_prot_reg(part->parent, from, len,
+ retlen, buf);
+ }
+
+@@ -170,7 +176,7 @@ static int part_get_fact_prot_info(struc
+ size_t *retlen, struct otp_info *buf)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_get_fact_prot_info(part->master, len, retlen,
++ return part->parent->_get_fact_prot_info(part->parent, len, retlen,
+ buf);
+ }
+
+@@ -178,7 +184,7 @@ static int part_write(struct mtd_info *m
+ size_t *retlen, const u_char *buf)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_write(part->master, to + part->offset, len,
++ return part->parent->_write(part->parent, to + part->offset, len,
+ retlen, buf);
+ }
+
+@@ -186,7 +192,7 @@ static int part_panic_write(struct mtd_i
+ size_t *retlen, const u_char *buf)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_panic_write(part->master, to + part->offset, len,
++ return part->parent->_panic_write(part->parent, to + part->offset, len,
+ retlen, buf);
+ }
+
+@@ -199,14 +205,14 @@ static int part_write_oob(struct mtd_inf
+ return -EINVAL;
+ if (ops->datbuf && to + ops->len > mtd->size)
+ return -EINVAL;
+- return part->master->_write_oob(part->master, to + part->offset, ops);
++ return part->parent->_write_oob(part->parent, to + part->offset, ops);
+ }
+
+ static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
+ size_t len, size_t *retlen, u_char *buf)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_write_user_prot_reg(part->master, from, len,
++ return part->parent->_write_user_prot_reg(part->parent, from, len,
+ retlen, buf);
+ }
+
+@@ -214,14 +220,14 @@ static int part_lock_user_prot_reg(struc
+ size_t len)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_lock_user_prot_reg(part->master, from, len);
++ return part->parent->_lock_user_prot_reg(part->parent, from, len);
+ }
+
+ static int part_writev(struct mtd_info *mtd, const struct kvec *vecs,
+ unsigned long count, loff_t to, size_t *retlen)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_writev(part->master, vecs, count,
++ return part->parent->_writev(part->parent, vecs, count,
+ to + part->offset, retlen);
+ }
+
+@@ -231,7 +237,7 @@ static int part_erase(struct mtd_info *m
+ int ret;
+
+ instr->addr += part->offset;
+- ret = part->master->_erase(part->master, instr);
++ ret = part->parent->_erase(part->parent, instr);
+ if (ret) {
+ if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
+ instr->fail_addr -= part->offset;
+@@ -257,51 +263,51 @@ EXPORT_SYMBOL_GPL(mtd_erase_callback);
+ static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_lock(part->master, ofs + part->offset, len);
++ return part->parent->_lock(part->parent, ofs + part->offset, len);
+ }
+
+ static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_unlock(part->master, ofs + part->offset, len);
++ return part->parent->_unlock(part->parent, ofs + part->offset, len);
+ }
+
+ static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_is_locked(part->master, ofs + part->offset, len);
++ return part->parent->_is_locked(part->parent, ofs + part->offset, len);
+ }
+
+ static void part_sync(struct mtd_info *mtd)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- part->master->_sync(part->master);
++ part->parent->_sync(part->parent);
+ }
+
+ static int part_suspend(struct mtd_info *mtd)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_suspend(part->master);
++ return part->parent->_suspend(part->parent);
+ }
+
+ static void part_resume(struct mtd_info *mtd)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- part->master->_resume(part->master);
++ part->parent->_resume(part->parent);
+ }
+
+ static int part_block_isreserved(struct mtd_info *mtd, loff_t ofs)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+ ofs += part->offset;
+- return part->master->_block_isreserved(part->master, ofs);
++ return part->parent->_block_isreserved(part->parent, ofs);
+ }
+
+ static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+ ofs += part->offset;
+- return part->master->_block_isbad(part->master, ofs);
++ return part->parent->_block_isbad(part->parent, ofs);
+ }
+
+ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
+@@ -310,7 +316,7 @@ static int part_block_markbad(struct mtd
+ int res;
+
+ ofs += part->offset;
+- res = part->master->_block_markbad(part->master, ofs);
++ res = part->parent->_block_markbad(part->parent, ofs);
+ if (!res)
+ mtd->ecc_stats.badblocks++;
+ return res;
+@@ -319,13 +325,13 @@ static int part_block_markbad(struct mtd
+ static int part_get_device(struct mtd_info *mtd)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- return part->master->_get_device(part->master);
++ return part->parent->_get_device(part->parent);
+ }
+
+ static void part_put_device(struct mtd_info *mtd)
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+- part->master->_put_device(part->master);
++ part->parent->_put_device(part->parent);
+ }
+
+ static int part_ooblayout_ecc(struct mtd_info *mtd, int section,
+@@ -333,7 +339,7 @@ static int part_ooblayout_ecc(struct mtd
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+
+- return mtd_ooblayout_ecc(part->master, section, oobregion);
++ return mtd_ooblayout_ecc(part->parent, section, oobregion);
+ }
+
+ static int part_ooblayout_free(struct mtd_info *mtd, int section,
+@@ -341,7 +347,7 @@ static int part_ooblayout_free(struct mt
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+
+- return mtd_ooblayout_free(part->master, section, oobregion);
++ return mtd_ooblayout_free(part->parent, section, oobregion);
+ }
+
+ static const struct mtd_ooblayout_ops part_ooblayout_ops = {
+@@ -353,7 +359,7 @@ static int part_max_bad_blocks(struct mt
+ {
+ struct mtd_part *part = mtd_to_part(mtd);
+
+- return part->master->_max_bad_blocks(part->master,
++ return part->parent->_max_bad_blocks(part->parent,
+ ofs + part->offset, len);
+ }
+
+@@ -363,12 +369,12 @@ static inline void free_partition(struct
+ kfree(p);
+ }
+
+-static struct mtd_part *allocate_partition(struct mtd_info *master,
++static struct mtd_part *allocate_partition(struct mtd_info *parent,
+ const struct mtd_partition *part, int partno,
+ uint64_t cur_offset)
+ {
+- int wr_alignment = (master->flags & MTD_NO_ERASE) ? master->writesize:
+- master->erasesize;
++ int wr_alignment = (parent->flags & MTD_NO_ERASE) ? parent->writesize:
++ parent->erasesize;
+ struct mtd_part *slave;
+ u32 remainder;
+ char *name;
+@@ -379,25 +385,25 @@ static struct mtd_part *allocate_partiti
+ name = kstrdup(part->name, GFP_KERNEL);
+ if (!name || !slave) {
+ printk(KERN_ERR"memory allocation error while creating partitions for \"%s\"\n",
+- master->name);
++ parent->name);
+ kfree(name);
+ kfree(slave);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ /* set up the MTD object for this partition */
+- slave->mtd.type = master->type;
+- slave->mtd.flags = master->flags & ~part->mask_flags;
++ slave->mtd.type = parent->type;
++ slave->mtd.flags = parent->flags & ~part->mask_flags;
+ slave->mtd.size = part->size;
+- slave->mtd.writesize = master->writesize;
+- slave->mtd.writebufsize = master->writebufsize;
+- slave->mtd.oobsize = master->oobsize;
+- slave->mtd.oobavail = master->oobavail;
+- slave->mtd.subpage_sft = master->subpage_sft;
+- slave->mtd.pairing = master->pairing;
++ slave->mtd.writesize = parent->writesize;
++ slave->mtd.writebufsize = parent->writebufsize;
++ slave->mtd.oobsize = parent->oobsize;
++ slave->mtd.oobavail = parent->oobavail;
++ slave->mtd.subpage_sft = parent->subpage_sft;
++ slave->mtd.pairing = parent->pairing;
+
+ slave->mtd.name = name;
+- slave->mtd.owner = master->owner;
++ slave->mtd.owner = parent->owner;
+
+ /* NOTE: Historically, we didn't arrange MTDs as a tree out of
+ * concern for showing the same data in multiple partitions.
+@@ -408,70 +414,70 @@ static struct mtd_part *allocate_partiti
+ * distinguish between the master and the partition in sysfs.
+ */
+ slave->mtd.dev.parent = IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER) ?
+- &master->dev :
+- master->dev.parent;
++ &parent->dev :
++ parent->dev.parent;
+ slave->mtd.dev.of_node = part->of_node;
+
+ slave->mtd._read = part_read;
+ slave->mtd._write = part_write;
+
+- if (master->_panic_write)
++ if (parent->_panic_write)
+ slave->mtd._panic_write = part_panic_write;
+
+- if (master->_point && master->_unpoint) {
++ if (parent->_point && parent->_unpoint) {
+ slave->mtd._point = part_point;
+ slave->mtd._unpoint = part_unpoint;
+ }
+
+- if (master->_get_unmapped_area)
++ if (parent->_get_unmapped_area)
+ slave->mtd._get_unmapped_area = part_get_unmapped_area;
+- if (master->_read_oob)
++ if (parent->_read_oob)
+ slave->mtd._read_oob = part_read_oob;
+- if (master->_write_oob)
++ if (parent->_write_oob)
+ slave->mtd._write_oob = part_write_oob;
+- if (master->_read_user_prot_reg)
++ if (parent->_read_user_prot_reg)
+ slave->mtd._read_user_prot_reg = part_read_user_prot_reg;
+- if (master->_read_fact_prot_reg)
++ if (parent->_read_fact_prot_reg)
+ slave->mtd._read_fact_prot_reg = part_read_fact_prot_reg;
+- if (master->_write_user_prot_reg)
++ if (parent->_write_user_prot_reg)
+ slave->mtd._write_user_prot_reg = part_write_user_prot_reg;
+- if (master->_lock_user_prot_reg)
++ if (parent->_lock_user_prot_reg)
+ slave->mtd._lock_user_prot_reg = part_lock_user_prot_reg;
+- if (master->_get_user_prot_info)
++ if (parent->_get_user_prot_info)
+ slave->mtd._get_user_prot_info = part_get_user_prot_info;
+- if (master->_get_fact_prot_info)
++ if (parent->_get_fact_prot_info)
+ slave->mtd._get_fact_prot_info = part_get_fact_prot_info;
+- if (master->_sync)
++ if (parent->_sync)
+ slave->mtd._sync = part_sync;
+- if (!partno && !master->dev.class && master->_suspend &&
+- master->_resume) {
++ if (!partno && !parent->dev.class && parent->_suspend &&
++ parent->_resume) {
+ slave->mtd._suspend = part_suspend;
+ slave->mtd._resume = part_resume;
+ }
+- if (master->_writev)
++ if (parent->_writev)
+ slave->mtd._writev = part_writev;
+- if (master->_lock)
++ if (parent->_lock)
+ slave->mtd._lock = part_lock;
+- if (master->_unlock)
++ if (parent->_unlock)
+ slave->mtd._unlock = part_unlock;
+- if (master->_is_locked)
++ if (parent->_is_locked)
+ slave->mtd._is_locked = part_is_locked;
+- if (master->_block_isreserved)
++ if (parent->_block_isreserved)
+ slave->mtd._block_isreserved = part_block_isreserved;
+- if (master->_block_isbad)
++ if (parent->_block_isbad)
+ slave->mtd._block_isbad = part_block_isbad;
+- if (master->_block_markbad)
++ if (parent->_block_markbad)
+ slave->mtd._block_markbad = part_block_markbad;
+- if (master->_max_bad_blocks)
++ if (parent->_max_bad_blocks)
+ slave->mtd._max_bad_blocks = part_max_bad_blocks;
+
+- if (master->_get_device)
++ if (parent->_get_device)
+ slave->mtd._get_device = part_get_device;
+- if (master->_put_device)
++ if (parent->_put_device)
+ slave->mtd._put_device = part_put_device;
+
+ slave->mtd._erase = part_erase;
+- slave->master = master;
++ slave->parent = parent;
+ slave->offset = part->offset;
+
+ if (slave->offset == MTDPART_OFS_APPEND)
+@@ -489,25 +495,25 @@ static struct mtd_part *allocate_partiti
+ }
+ if (slave->offset == MTDPART_OFS_RETAIN) {
+ slave->offset = cur_offset;
+- if (master->size - slave->offset >= slave->mtd.size) {
+- slave->mtd.size = master->size - slave->offset
++ if (parent->size - slave->offset >= slave->mtd.size) {
++ slave->mtd.size = parent->size - slave->offset
+ - slave->mtd.size;
+ } else {
+ printk(KERN_ERR "mtd partition \"%s\" doesn't have enough space: %#llx < %#llx, disabled\n",
+- part->name, master->size - slave->offset,
++ part->name, parent->size - slave->offset,
+ slave->mtd.size);
+ /* register to preserve ordering */
+ goto out_register;
+ }
+ }
+ if (slave->mtd.size == MTDPART_SIZ_FULL)
+- slave->mtd.size = master->size - slave->offset;
++ slave->mtd.size = parent->size - slave->offset;
+
+ printk(KERN_NOTICE "0x%012llx-0x%012llx : \"%s\"\n", (unsigned long long)slave->offset,
+ (unsigned long long)(slave->offset + slave->mtd.size), slave->mtd.name);
+
+ /* let's do some sanity checks */
+- if (slave->offset >= master->size) {
++ if (slave->offset >= parent->size) {
+ /* let's register it anyway to preserve ordering */
+ slave->offset = 0;
+ slave->mtd.size = 0;
+@@ -515,16 +521,16 @@ static struct mtd_part *allocate_partiti
+ part->name);
+ goto out_register;
+ }
+- if (slave->offset + slave->mtd.size > master->size) {
+- slave->mtd.size = master->size - slave->offset;
++ if (slave->offset + slave->mtd.size > parent->size) {
++ slave->mtd.size = parent->size - slave->offset;
+ printk(KERN_WARNING"mtd: partition \"%s\" extends beyond the end of device \"%s\" -- size truncated to %#llx\n",
+- part->name, master->name, (unsigned long long)slave->mtd.size);
++ part->name, parent->name, (unsigned long long)slave->mtd.size);
+ }
+- if (master->numeraseregions > 1) {
++ if (parent->numeraseregions > 1) {
+ /* Deal with variable erase size stuff */
+- int i, max = master->numeraseregions;
++ int i, max = parent->numeraseregions;
+ u64 end = slave->offset + slave->mtd.size;
+- struct mtd_erase_region_info *regions = master->eraseregions;
++ struct mtd_erase_region_info *regions = parent->eraseregions;
+
+ /* Find the first erase regions which is part of this
+ * partition. */
+@@ -543,7 +549,7 @@ static struct mtd_part *allocate_partiti
+ BUG_ON(slave->mtd.erasesize == 0);
+ } else {
+ /* Single erase size */
+- slave->mtd.erasesize = master->erasesize;
++ slave->mtd.erasesize = parent->erasesize;
+ }
+
+ tmp = slave->offset;
+@@ -566,17 +572,17 @@ static struct mtd_part *allocate_partiti
+ }
+
+ mtd_set_ooblayout(&slave->mtd, &part_ooblayout_ops);
+- slave->mtd.ecc_step_size = master->ecc_step_size;
+- slave->mtd.ecc_strength = master->ecc_strength;
+- slave->mtd.bitflip_threshold = master->bitflip_threshold;
++ slave->mtd.ecc_step_size = parent->ecc_step_size;
++ slave->mtd.ecc_strength = parent->ecc_strength;
++ slave->mtd.bitflip_threshold = parent->bitflip_threshold;
+
+- if (master->_block_isbad) {
++ if (parent->_block_isbad) {
+ uint64_t offs = 0;
+
+ while (offs < slave->mtd.size) {
+- if (mtd_block_isreserved(master, offs + slave->offset))
++ if (mtd_block_isreserved(parent, offs + slave->offset))
+ slave->mtd.ecc_stats.bbtblocks++;
+- else if (mtd_block_isbad(master, offs + slave->offset))
++ else if (mtd_block_isbad(parent, offs + slave->offset))
+ slave->mtd.ecc_stats.badblocks++;
+ offs += slave->mtd.erasesize;
+ }
+@@ -610,7 +616,7 @@ static int mtd_add_partition_attrs(struc
+ return ret;
+ }
+
+-int mtd_add_partition(struct mtd_info *master, const char *name,
++int mtd_add_partition(struct mtd_info *parent, const char *name,
+ long long offset, long long length)
+ {
+ struct mtd_partition part;
+@@ -623,7 +629,7 @@ int mtd_add_partition(struct mtd_info *m
+ return -EINVAL;
+
+ if (length == MTDPART_SIZ_FULL)
+- length = master->size - offset;
++ length = parent->size - offset;
+
+ if (length <= 0)
+ return -EINVAL;
+@@ -633,7 +639,7 @@ int mtd_add_partition(struct mtd_info *m
+ part.size = length;
+ part.offset = offset;
+
+- new = allocate_partition(master, &part, -1, offset);
++ new = allocate_partition(parent, &part, -1, offset);
+ if (IS_ERR(new))
+ return PTR_ERR(new);
+
+@@ -683,7 +689,7 @@ int del_mtd_partitions(struct mtd_info *
+
+ mutex_lock(&mtd_partitions_mutex);
+ list_for_each_entry_safe(slave, next, &mtd_partitions, list)
+- if (slave->master == master) {
++ if (slave->parent == master) {
+ ret = __mtd_del_partition(slave);
+ if (ret < 0)
+ err = ret;
+@@ -700,7 +706,7 @@ int mtd_del_partition(struct mtd_info *m
+
+ mutex_lock(&mtd_partitions_mutex);
+ list_for_each_entry_safe(slave, next, &mtd_partitions, list)
+- if ((slave->master == master) &&
++ if ((slave->parent == master) &&
+ (slave->mtd.index == partno)) {
+ ret = __mtd_del_partition(slave);
+ break;
+@@ -933,6 +939,6 @@ uint64_t mtd_get_device_size(const struc
+ if (!mtd_is_partition(mtd))
+ return mtd->size;
+
+- return mtd_to_part(mtd)->master->size;
++ return mtd_to_part(mtd)->parent->size;
+ }
+ EXPORT_SYMBOL_GPL(mtd_get_device_size);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-26 19:06:13 +0000