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Subject[PATCH] autofs - make autofs4 Kconfig depend on AUTOFS_FS
Setting AUTOFS_FS and AUTOFS4_FS to y or m results in a compile

It isn't possible to unset one if the other is set because it
introduces a circular dependency.

But adding "depends on AUTOFS_FS = n && AUTOFS_FS != m" will make
autofs4 appear under the autofs entry which should call attention
to it. It also results in AUTOFS4_FS being removed from .config
for any setting of AUTOFS_FS except n.

Adding a "NOTE" to the AUTOFS4_FS help text will hopefully raise
awareness of the change to smooth the transition.

Signed-off-by: Ian Kent <>
Cc: Randy Dunlap <>
fs/autofs4/Kconfig | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/fs/autofs4/Kconfig b/fs/autofs4/Kconfig
index 53bc592a250d..2c2fdf989f90 100644
--- a/fs/autofs4/Kconfig
+++ b/fs/autofs4/Kconfig
@@ -1,6 +1,7 @@
config AUTOFS4_FS
tristate "Kernel automounter version 4 support (also supports v3 and v5)"
default n
+ depends on AUTOFS_FS = n
The automounter is a tool to automatically mount remote file systems
on demand. This implementation is partially kernel-based to reduce
@@ -30,3 +31,10 @@ config AUTOFS4_FS
- any "alias autofs autofs4" will need to be removed.

Please configure AUTOFS_FS instead of AUTOFS4_FS from now on.
+ NOTE: Since the modules autofs and autofs4 use the same file system
+ type name of "autofs" only one can be built. The "depends"
+ above will result in AUTOFS4_FS not appearing in .config for
+ any setting of AUTOFS_FS other than n and AUTOFS4_FS will
+ appear under the AUTOFS_FS entry otherwise which is intended
+ to draw attention to the module rename change.
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