From: Vitor Massaru Iha vitor@massaru.org
commit 63ec90f18204f2fe072df108de8a021b28b1b173 upstream.
In this workflow:
$ make ARCH=um defconfig && make ARCH=um -j8 [snip] $ make ARCH=um mrproper [snip] $ make ARCH=um defconfig O=./build_um && make ARCH=um -j8 O=./build_um [snip] CC scripts/mod/empty.o In file included from ../include/linux/types.h:6, from ../include/linux/mod_devicetable.h:12, from ../scripts/mod/devicetable-offsets.c:3: ../include/uapi/linux/types.h:5:10: fatal error: asm/types.h: No such file or directory 5 | #include <asm/types.h> | ^~~~~~~~~~~~~ compilation terminated. make[2]: *** [../scripts/Makefile.build:100: scripts/mod/devicetable-offsets.s] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/home/iha/sdb/opensource/lkmp/linux-kselftest.git/Makefile:1140: prepare0] Error 2 make[1]: Leaving directory '/home/iha/sdb/opensource/lkmp/linux-kselftest.git/build_um' make: *** [Makefile:180: sub-make] Error 2
The cause of the error was because arch/$(SUBARCH)/include/generated files weren't properly cleaned by `make ARCH=um mrproper`.
Fixes: a788b2ed81ab ("kbuild: check arch/$(SRCARCH)/include/generated before out-of-tree build") Reported-by: Theodore Ts'o tytso@mit.edu Suggested-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Vitor Massaru Iha vitor@massaru.org Reviewed-by: Brendan Higgins brendanhiggins@google.com Tested-by: Brendan Higgins brendanhiggins@google.com Link: https://groups.google.com/forum/#%21msg/kunit-dev/QmA27YEgEgI/hvS1kiz2CwAJ Signed-off-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/um/Makefile | 1 + 1 file changed, 1 insertion(+)
--- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -140,6 +140,7 @@ export CFLAGS_vmlinux := $(LINK-y) $(LIN # When cleaning we don't include .config, so we don't include # TT or skas makefiles and don't clean skas_ptregs.h. CLEAN_FILES += linux x.i gmon.out +MRPROPER_DIRS += arch/$(SUBARCH)/include/generated
archclean: @find . ( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \