Commit 7e35b425 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kbuild: remove SUBDIRS support



Linux 5.3 is out. Remove the SUBDIRS support.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent 13dc8c02
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+2 −18
Original line number Original line Diff line number Diff line
@@ -206,24 +206,8 @@ ifndef KBUILD_CHECKSRC
  KBUILD_CHECKSRC = 0
  KBUILD_CHECKSRC = 0
endif
endif


# Use make M=dir to specify directory of external module to build
# Use make M=dir or set the environment variable KBUILD_EXTMOD to specify the
# Old syntax make ... SUBDIRS=$PWD is still supported
# directory of external module to build. Setting M= takes precedence.
# 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

ifeq ("$(origin M)", "command line")
ifeq ("$(origin M)", "command line")
  KBUILD_EXTMOD := $(M)
  KBUILD_EXTMOD := $(M)
endif
endif