Commit 42ba8c3b authored by Ezequiel Garcia's avatar Ezequiel Garcia Committed by Miquel Raynal
Browse files

mtdblock: Add comment about UBI block devices 



There is a surprisingly large number of tutorials
that suggest using mtdblock to mount SquashFS filesystems
on flash devices, including NAND devices.

Given this approach is suboptimal than using UBI, and given
the UBI block device layer was introduced many years ago
specifically with this use case in mind, add a small
comment inviting users and developers to consider UBI block.

Signed-off-by: default avatarEzequiel Garcia <ezequiel@collabora.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210801234509.18774-7-ezequiel@collabora.com
parent 6bc219b7

drivers/mtd/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -69,6 +69,9 @@ config MTD_BLOCK_RO 
	  You do not need this option for use with the DiskOnChip devices. For

	  those, enable NFTL support (CONFIG_NFTL) instead.



comment "Note that in some cases UBI block is preferred. See MTD_UBI_BLOCK."

	depends on MTD_BLOCK || MTD_BLOCK_RO



config FTL

	tristate "FTL (Flash Translation Layer) support"

	depends on BLOCK