diff options
| author | Masahiro Yamada | 2018-11-21 00:04:18 +0900 |
|---|---|---|
| committer | Masahiro Yamada | 2018-12-01 22:21:56 +0900 |
| commit | 0126be38d98815d25d9ec4573541ed4315bf6a88 (patch) | |
| tree | b790b96624f57ca8ab81469181b191c95b64cde0 /Documentation/kbuild | |
| parent | 0987abcbeea4c87aef80a6138efc13ed0798fcf2 (diff) | |
kbuild: announce removal of SUBDIRS if used
SUBDIRS has been kept as a backward compatibility since
commit ("[PATCH] kbuild: external module support") in 2002.
We do not need multiple ways to do the same thing, so I will remove
SUBDIRS after the Linux 5.3 release. I cleaned up in-tree code, and
updated the document so that nobody would try to use it.
Meanwhile, display the following warning if SUBDIRS is used.
Makefile:189: ================= WARNING ================
Makefile:190: 'SUBDIRS' will be removed after Linux 5.3
Makefile:191: Please use 'M=' or 'KBUILD_EXTMOD' instead
Makefile:192: ==========================================
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Boris Brezillon <boris.brezillon@bootlin.com> # for scx200_docflash.c
Acked-by: Guenter Roeck <linux@roeck-us.net> # for scx200_wdt.c
Diffstat (limited to 'Documentation/kbuild')
| -rw-r--r-- | Documentation/kbuild/kbuild.txt | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt index 8390c360d4b3..c9e3d93e7a89 100644 --- a/Documentation/kbuild/kbuild.txt +++ b/Documentation/kbuild/kbuild.txt @@ -81,12 +81,7 @@ KBUILD_EXTMOD -------------------------------------------------- Set the directory to look for the kernel source when building external modules. -The directory can be specified in several ways: -1) Use "M=..." on the command line -2) Environment variable KBUILD_EXTMOD -3) Environment variable SUBDIRS -The possibilities are listed in the order they take precedence. -Using "M=..." will always override the others. +Setting "M=..." takes precedence over KBUILD_EXTMOD. KBUILD_OUTPUT -------------------------------------------------- |