From: Daniel Golle <daniel@makrotopia.org>
To: linux-block@vger.kernel.org, linux-efi@vger.kernel.org,
linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Tom Rini <trini@konsulko.com>, Jens Axboe <axboe@kernel.dk>,
Davidlohr Bueso <dave@stgolabs.net>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Masahiro Yamada <masahiroy@kernel.org>
Subject: [PATCH v3 5/5] mtd: ubi: block: add option to enable scanning for partitions
Date: Thu, 12 May 2022 20:39:46 +0100 [thread overview]
Message-ID: <Yn1igrfT/yUipBUs@makrotopia.org> (raw)
Add Kconfig option CONFIG_MTD_UBI_BLOCK_PARTITIONS and enable block
partition parsers on ubiblock devices in case it is selected.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
drivers/mtd/ubi/Kconfig | 10 ++++++++++
drivers/mtd/ubi/block.c | 5 ++++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/ubi/Kconfig b/drivers/mtd/ubi/Kconfig
index 2ed77b7b3fcb56..491330e42ab201 100644
--- a/drivers/mtd/ubi/Kconfig
+++ b/drivers/mtd/ubi/Kconfig
@@ -104,4 +104,14 @@ config MTD_UBI_BLOCK
If in doubt, say "N".
+config MTD_UBI_BLOCK_PARTITIONS
+ bool "Scan UBI block devices for partitions"
+ default y if FIT_PARTITION
+ depends on MTD_UBI_BLOCK
+ help
+ Scan UBI block devices for partitions (ie. MBR, GPT, uImage.FIT, ...).
+
+ Unless your UBI volumes contain sub-partitions mapped using a partition
+ table, say no.
+
endif # MTD_UBI
diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c
index a78fdf3b30f7e6..8b26e38f082ce4 100644
--- a/drivers/mtd/ubi/block.c
+++ b/drivers/mtd/ubi/block.c
@@ -430,7 +430,10 @@ int ubiblock_create(struct ubi_volume_info *vi)
ret = -ENODEV;
goto out_cleanup_disk;
}
- gd->flags |= GENHD_FL_NO_PART;
+
+ if (!IS_ENABLED(CONFIG_MTD_UBI_BLOCK_PARTITIONS))
+ gd->flags |= GENHD_FL_NO_PART;
+
gd->private_data = dev;
sprintf(gd->disk_name, "ubiblock%d_%d", dev->ubi_num, dev->vol_id);
set_capacity(gd, disk_capacity);
--
2.36.0
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reply other threads:[~2022-05-12 19:40 UTC|newest]
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