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Subject[PATCH] cramfs: fix MTD dependency
Date
With CONFIG_MTD=m and CONFIG_CRAMFS=y, we now get a link failure:

fs/cramfs/inode.o: In function `cramfs_mount':
inode.c:(.text+0x220): undefined reference to `mount_mtd'
fs/cramfs/inode.o: In function `cramfs_mtd_fill_super':
inode.c:(.text+0x6d8): undefined reference to `mtd_point'
inode.c:(.text+0xae4): undefined reference to `mtd_unpoint'

This adds a more specific Kconfig dependency to avoid the
broken configuration. Alternatively we could make CRAMFS
itself depend on "MTD || !MTD" with a similar result.

Fixes: 99c18ce580c6 ("cramfs: direct memory access support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
fs/cramfs/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/fs/cramfs/Kconfig b/fs/cramfs/Kconfig
index f937082f3244..58e2fe40b2a0 100644
--- a/fs/cramfs/Kconfig
+++ b/fs/cramfs/Kconfig
@@ -34,6 +34,7 @@ config CRAMFS_BLOCKDEV
config CRAMFS_MTD
bool "Support CramFs image directly mapped in physical memory"
depends on CRAMFS && MTD
+ depends on CRAMFS=m || MTD=y
default y if !CRAMFS_BLOCKDEV
help
This option allows the CramFs driver to load data directly from
--
2.9.0
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