kbuild: remove SUBDIRS support

Linux 5.3 is out. Remove the SUBDIRS support.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2019-09-21 16:05:41 +09:00
parent 13dc8c029c
commit 7e35b42591

View File

@ -206,24 +206,8 @@ ifndef KBUILD_CHECKSRC
KBUILD_CHECKSRC = 0
endif
# Use make M=dir to specify directory of external module to build
# Old syntax make ... SUBDIRS=$PWD is still supported
# Setting the environment variable KBUILD_EXTMOD take precedence
ifdef SUBDIRS
$(warning ================= WARNING ================)
$(warning 'SUBDIRS' will be removed after Linux 5.3)
$(warning )
$(warning If you are building an individual subdirectory)
$(warning in the kernel tree, you can do like this:)
$(warning $$ make path/to/dir/you/want/to/build/)
$(warning (Do not forget the trailing slash))
$(warning )
$(warning If you are building an external module,)
$(warning Please use 'M=' or 'KBUILD_EXTMOD' instead)
$(warning ==========================================)
KBUILD_EXTMOD ?= $(SUBDIRS)
endif
# Use make M=dir or set the environment variable KBUILD_EXTMOD to specify the
# directory of external module to build. Setting M= takes precedence.
ifeq ("$(origin M)", "command line")
KBUILD_EXTMOD := $(M)
endif