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author | John Crispin <john@phrozen.org> | 2016-12-25 20:11:34 +0100 |
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committer | John Crispin <john@phrozen.org> | 2017-08-05 08:46:36 +0200 |
commit | 74d00a8c3849c1340efd713eb94b786e304c201f (patch) | |
tree | de481743de61c34da96ab5f9dba3af3edcfb8260 /target/linux/generic/backport-4.9/065-v4.13-0003-mtd-partitions-add-helper-for-deleting-partition.patch | |
parent | de350550ef648d9728351b986b0516fa29465c45 (diff) | |
download | upstream-74d00a8c3849c1340efd713eb94b786e304c201f.tar.gz upstream-74d00a8c3849c1340efd713eb94b786e304c201f.tar.bz2 upstream-74d00a8c3849c1340efd713eb94b786e304c201f.zip |
kernel: split patches folder up into backport, pending and hack folders
* properly format/comment all patches
* merge debloat patches
* merge Kconfig patches
* merge swconfig patches
* merge hotplug patches
* drop 200-fix_localversion.patch - upstream
* drop 222-arm_zimage_none.patch - unused
* drop 252-mv_cesa_depends.patch - no longer required
* drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused
* drop 661-fq_codel_keep_dropped_stats.patch - outdated
* drop 702-phy_add_aneg_done_function.patch - upstream
* drop 840-rtc7301.patch - unused
* drop 841-rtc_pt7c4338.patch - upstream
* drop 921-use_preinit_as_init.patch - unused
* drop spio-gpio-old and gpio-mmc - unused
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target/linux/generic/backport-4.9/065-v4.13-0003-mtd-partitions-add-helper-for-deleting-partition.patch')
-rw-r--r-- | target/linux/generic/backport-4.9/065-v4.13-0003-mtd-partitions-add-helper-for-deleting-partition.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.9/065-v4.13-0003-mtd-partitions-add-helper-for-deleting-partition.patch b/target/linux/generic/backport-4.9/065-v4.13-0003-mtd-partitions-add-helper-for-deleting-partition.patch new file mode 100644 index 0000000000..d93f4ba4b5 --- /dev/null +++ b/target/linux/generic/backport-4.9/065-v4.13-0003-mtd-partitions-add-helper-for-deleting-partition.patch @@ -0,0 +1,119 @@ +From 08263a9ae664b24fa777d20b365601534842b236 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 08:26:42 +0200 +Subject: [PATCH] mtd: partitions: add helper for deleting partition +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +There are two similar functions handling deletion. One handles single +partition and another the whole MTD flash device. They share (duplicate) +some code so it makes sense to add a small helper for that part. + +Function del_mtd_partitions has been moved a bit to keep all deleting +stuff together. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: Brian Norris <computersforpeace@gmail.com> +--- + drivers/mtd/mtdpart.c | 75 +++++++++++++++++++++++++++++---------------------- + 1 file changed, 43 insertions(+), 32 deletions(-) + +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -363,32 +363,6 @@ static inline void free_partition(struct + kfree(p); + } + +-/* +- * This function unregisters and destroy all slave MTD objects which are +- * attached to the given master MTD object. +- */ +- +-int del_mtd_partitions(struct mtd_info *master) +-{ +- struct mtd_part *slave, *next; +- int ret, err = 0; +- +- mutex_lock(&mtd_partitions_mutex); +- list_for_each_entry_safe(slave, next, &mtd_partitions, list) +- if (slave->master == master) { +- ret = del_mtd_device(&slave->mtd); +- if (ret < 0) { +- err = ret; +- continue; +- } +- list_del(&slave->list); +- free_partition(slave); +- } +- mutex_unlock(&mtd_partitions_mutex); +- +- return err; +-} +- + static struct mtd_part *allocate_partition(struct mtd_info *master, + const struct mtd_partition *part, int partno, + uint64_t cur_offset) +@@ -675,6 +649,48 @@ int mtd_add_partition(struct mtd_info *m + } + EXPORT_SYMBOL_GPL(mtd_add_partition); + ++/** ++ * __mtd_del_partition - delete MTD partition ++ * ++ * @priv: internal MTD struct for partition to be deleted ++ * ++ * This function must be called with the partitions mutex locked. ++ */ ++static int __mtd_del_partition(struct mtd_part *priv) ++{ ++ int err; ++ ++ err = del_mtd_device(&priv->mtd); ++ if (err) ++ return err; ++ ++ list_del(&priv->list); ++ free_partition(priv); ++ ++ return 0; ++} ++ ++/* ++ * This function unregisters and destroy all slave MTD objects which are ++ * attached to the given master MTD object. ++ */ ++int del_mtd_partitions(struct mtd_info *master) ++{ ++ struct mtd_part *slave, *next; ++ int ret, err = 0; ++ ++ mutex_lock(&mtd_partitions_mutex); ++ list_for_each_entry_safe(slave, next, &mtd_partitions, list) ++ if (slave->master == master) { ++ ret = __mtd_del_partition(slave); ++ if (ret < 0) ++ err = ret; ++ } ++ mutex_unlock(&mtd_partitions_mutex); ++ ++ return err; ++} ++ + int mtd_del_partition(struct mtd_info *master, int partno) + { + struct mtd_part *slave, *next; +@@ -686,12 +702,7 @@ int mtd_del_partition(struct mtd_info *m + (slave->mtd.index == partno)) { + sysfs_remove_files(&slave->mtd.dev.kobj, + mtd_partition_attrs); +- ret = del_mtd_device(&slave->mtd); +- if (ret < 0) +- break; +- +- list_del(&slave->list); +- free_partition(slave); ++ ret = __mtd_del_partition(slave); + break; + } + mutex_unlock(&mtd_partitions_mutex); |