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authorEzequiel Garcia <ezequiel@collabora.com>2021-08-01 20:45:08 -0300
committerMiquel Raynal <miquel.raynal@bootlin.com>2021-08-06 22:05:13 +0200
commit42ba8c3b426342b39341e1b7a97f2387821bff86 (patch)
treef126ae093ba23abad181291c143f2a0eda978b04 /drivers/mtd
parent6bc219b7b2cdd9d45ea15926d32c5e5c1d63881e (diff)
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: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20210801234509.18774-7-ezequiel@collabora.com
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/Kconfig3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 3a1f87def25b..796a2eccbef0 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -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