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authorArnd Bergmann <arnd@arndb.de>2017-11-10 15:57:21 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2017-12-17 12:20:58 -0800
commitb9f5fb1800d8a4a3bc6cd3152c5f3d252986cf79 (patch)
tree25509d31942911a9b3bc9f4278939e140209ee9e
parent73d080d374a509ae887b8a0744ad4d553c5d5d24 (diff)
downloadlinux-b9f5fb1800d8a4a3bc6cd3152c5f3d252986cf79.tar.gz
cramfs: fix MTD dependency
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>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/cramfs/Kconfig1
1 files changed, 1 insertions, 0 deletions
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