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cramfs: fix MTD dependency

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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: 99c18ce580 ("cramfs: direct memory access support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arnd Bergmann 2017-11-10 15:57:21 +01:00 committed by Linus Torvalds
parent 73d080d374
commit b9f5fb1800
1 changed files with 1 additions and 0 deletions
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fs/cramfs/Kconfig
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@ -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