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| author |   Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-11-21 00:04:18 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2018-12-01 22:21:56 +0900 |
| commit | 0126be38d98815d25d9ec4573541ed4315bf6a88 (patch) | |
| tree | b790b96624f57ca8ab81469181b191c95b64cde0 | |
| parent | modpost: drop unused command line switches (diff) | |
| download | linux-dev-0126be38d98815d25d9ec4573541ed4315bf6a88.tar.xz linux-dev-0126be38d98815d25d9ec4573541ed4315bf6a88.zip | |
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
| -rw-r--r-- | Documentation/kbuild/kbuild.txt | 7 | ||||
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | drivers/mtd/maps/scx200_docflash.c | 7 | ||||
| -rw-r--r-- | drivers/watchdog/scx200_wdt.c | 7 | ||||
| -rw-r--r-- | samples/connector/Makefile | 2 |
5 files changed, 6 insertions, 21 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 -------------------------------------------------- @@ -186,6 +186,10 @@ endif # 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 Please use 'M=' or 'KBUILD_EXTMOD' instead) + $(warning ==========================================) KBUILD_EXTMOD ?= $(SUBDIRS) endif diff --git a/drivers/mtd/maps/scx200_docflash.c b/drivers/mtd/maps/scx200_docflash.c index f1c1f737d0d7..7f1a0e690c4f 100644 --- a/drivers/mtd/maps/scx200_docflash.c +++ b/drivers/mtd/maps/scx200_docflash.c @@ -216,10 +216,3 @@ static void __exit cleanup_scx200_docflash(void) module_init(init_scx200_docflash); module_exit(cleanup_scx200_docflash); - -/* - Local variables: - compile-command: "make -k -C ../../.. SUBDIRS=drivers/mtd/maps modules" - c-basic-offset: 8 - End: -*/ diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c index 836377cf9271..ec4063ebb41a 100644 --- a/drivers/watchdog/scx200_wdt.c +++ b/drivers/watchdog/scx200_wdt.c @@ -262,10 +262,3 @@ static void __exit scx200_wdt_cleanup(void) module_init(scx200_wdt_init); module_exit(scx200_wdt_cleanup); - -/* - Local variables: - compile-command: "make -k -C ../.. SUBDIRS=drivers/char modules" - c-basic-offset: 8 - End: -*/ diff --git a/samples/connector/Makefile b/samples/connector/Makefile index fe3c8542ae4a..6ad71620e503 100644 --- a/samples/connector/Makefile +++ b/samples/connector/Makefile @@ -14,4 +14,4 @@ HOSTCFLAGS_ucon.o += -I$(objtree)/usr/include all: modules modules clean: - $(MAKE) -C ../.. SUBDIRS=$(CURDIR) $@ + $(MAKE) -C ../.. M=$(CURDIR) $@ |