From: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> commit c2d3cf3653a8ff6e4b402d55e7f84790ac08a8ad upstream. Use $(KHDR_INCLUDES) as lookup path for kernel headers. This prevents building against kernel headers from the build environment in scenarios where kernel headers are installed into a specific output directory (O=...). Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx> Cc: Shuah Khan <shuah@xxxxxxxxxx> Cc: linux-kselftest@xxxxxxxxxxxxxxx Cc: Ingo Molnar <mingo@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # 5.18+ Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/filesystems/Makefile | 2 +- tools/testing/selftests/filesystems/binderfs/Makefile | 2 +- tools/testing/selftests/filesystems/epoll/Makefile | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) --- a/tools/testing/selftests/filesystems/Makefile +++ b/tools/testing/selftests/filesystems/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -CFLAGS += -I../../../../usr/include/ +CFLAGS += $(KHDR_INCLUDES) TEST_GEN_PROGS := devpts_pts TEST_GEN_PROGS_EXTENDED := dnotify_test --- a/tools/testing/selftests/filesystems/binderfs/Makefile +++ b/tools/testing/selftests/filesystems/binderfs/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -CFLAGS += -I../../../../../usr/include/ -pthread +CFLAGS += $(KHDR_INCLUDES) -pthread TEST_GEN_PROGS := binderfs_test binderfs_test: binderfs_test.c ../../kselftest.h ../../kselftest_harness.h --- a/tools/testing/selftests/filesystems/epoll/Makefile +++ b/tools/testing/selftests/filesystems/epoll/Makefile @@ -1,6 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 -CFLAGS += -I../../../../../usr/include/ +CFLAGS += $(KHDR_INCLUDES) LDLIBS += -lpthread TEST_GEN_PROGS := epoll_wakeup_test