path: root/Makefile
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authorMasahiro Yamada <>2018-11-21 00:04:18 +0900
committerMasahiro Yamada <>2018-12-01 22:21:56 +0900
commit0126be38d98815d25d9ec4573541ed4315bf6a88 (patch)
treeb790b96624f57ca8ab81469181b191c95b64cde0 /Makefile
parent0987abcbeea4c87aef80a6138efc13ed0798fcf2 (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 <> Acked-by: Boris Brezillon <> # for scx200_docflash.c Acked-by: Guenter Roeck <> # for scx200_wdt.c
Diffstat (limited to 'Makefile')
1 files changed, 4 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 96b4ea5adf91..9fcd8f81809c 100644
--- a/Makefile
+++ b/Makefile
@@ -186,6 +186,10 @@ endif
# Old syntax make ... SUBDIRS=$PWD is still supported
# Setting the environment variable KBUILD_EXTMOD take precedence
+ $(warning ================= WARNING ================)
+ $(warning 'SUBDIRS' will be removed after Linux 5.3)
+ $(warning Please use 'M=' or 'KBUILD_EXTMOD' instead)
+ $(warning ==========================================)