diff options
| author |   Petr Malat <oss@malat.biz> | 2021-04-30 08:50:57 +0200 |
|---|---|---|
| committer |   Miquel Raynal <miquel.raynal@bootlin.com> | 2021-05-10 12:48:45 +0200 |
| commit | feb05fae4df10f6b9bf720662623efc88334c095 (patch) | |
| tree | 01706b0e69fe2502c7357c70f4f4135a941ef630 | |
| parent | mtd: tests: Remove redundant assignment to err (diff) | |
| download | linux-dev-feb05fae4df10f6b9bf720662623efc88334c095.tar.xz linux-dev-feb05fae4df10f6b9bf720662623efc88334c095.zip | |
mtd: Create partname and partid debug files for child MTDs
Partname and partid are set by the upper driver (spi-nor) on the master
MTD. If this MTD is partitioned and CONFIG_MTD_PARTITIONED_MASTER is
disabled, the master MTD is not instantiated and partname and partid
aren't available to the userspace.
Always read the partname and partid from the master MTD, they describe
the HW, which can't differ between master and its children.
Signed-off-by: Petr Malat <oss@malat.biz>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210430065057.32018-1-oss@malat.biz
| -rw-r--r-- | drivers/mtd/mtdcore.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 3f2e20e22501..3ae261661eea 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -360,6 +360,7 @@ static struct dentry *dfs_dir_mtd; static void mtd_debugfs_populate(struct mtd_info *mtd) { + struct mtd_info *master = mtd_get_master(mtd); struct device *dev = &mtd->dev; struct dentry *root; @@ -369,12 +370,12 @@ static void mtd_debugfs_populate(struct mtd_info *mtd) root = debugfs_create_dir(dev_name(dev), dfs_dir_mtd); mtd->dbg.dfs_dir = root; - if (mtd->dbg.partid) - debugfs_create_file("partid", 0400, root, mtd, + if (master->dbg.partid) + debugfs_create_file("partid", 0400, root, master, &mtd_partid_debug_fops); - if (mtd->dbg.partname) - debugfs_create_file("partname", 0400, root, mtd, + if (master->dbg.partname) + debugfs_create_file("partname", 0400, root, master, &mtd_partname_debug_fops); } |