linux-kernel - Re: [PATCH 21/34] selftests: powerpc: Fix incorrect kernel headers search path

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Message-ID: <0d95f6b4-c949-2f06-62fb-f35d70b1782d@linuxfoundation.org>
Date:   Mon, 30 Jan 2023 09:32:15 -0700
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org,
        Ingo Molnar <mingo@...hat.com>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 21/34] selftests: powerpc: Fix incorrect kernel headers
 search path

On 1/27/23 06:57, Mathieu Desnoyers wrote:
> 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@...icios.com>
> Cc: Shuah Khan <shuah@...nel.org>
> Cc: linux-kselftest@...r.kernel.org
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: <stable@...r.kernel.org>    [5.18+]
> ---
>   tools/testing/selftests/powerpc/ptrace/Makefile   | 2 +-
>   tools/testing/selftests/powerpc/security/Makefile | 2 +-
>   tools/testing/selftests/powerpc/syscalls/Makefile | 2 +-
>   tools/testing/selftests/powerpc/tm/Makefile       | 2 +-
>   4 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile b/tools/testing/selftests/powerpc/ptrace/Makefile
> index 2f02cb54224d..cbeeaeae8837 100644
> --- a/tools/testing/selftests/powerpc/ptrace/Makefile
> +++ b/tools/testing/selftests/powerpc/ptrace/Makefile
> @@ -33,7 +33,7 @@ TESTS_64 := $(patsubst %,$(OUTPUT)/%,$(TESTS_64))
>   $(TESTS_64): CFLAGS += -m64
>   $(TM_TESTS): CFLAGS += -I../tm -mhtm
>   
> -CFLAGS += -I../../../../../usr/include -fno-pie
> +CFLAGS += $(KHDR_INCLUDES) -fno-pie
>   
>   $(OUTPUT)/ptrace-gpr: ptrace-gpr.S
>   $(OUTPUT)/ptrace-pkey $(OUTPUT)/core-pkey: LDLIBS += -pthread
> diff --git a/tools/testing/selftests/powerpc/security/Makefile b/tools/testing/selftests/powerpc/security/Makefile
> index 7488315fd847..e0d979ab0204 100644
> --- a/tools/testing/selftests/powerpc/security/Makefile
> +++ b/tools/testing/selftests/powerpc/security/Makefile
> @@ -5,7 +5,7 @@ TEST_PROGS := mitigation-patching.sh
>   
>   top_srcdir = ../../../../..
>   
> -CFLAGS += -I../../../../../usr/include
> +CFLAGS += $(KHDR_INCLUDES)
>   
>   include ../../lib.mk
>   
> diff --git a/tools/testing/selftests/powerpc/syscalls/Makefile b/tools/testing/selftests/powerpc/syscalls/Makefile
> index b63f8459c704..d1f2648b112b 100644
> --- a/tools/testing/selftests/powerpc/syscalls/Makefile
> +++ b/tools/testing/selftests/powerpc/syscalls/Makefile
> @@ -1,7 +1,7 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>   TEST_GEN_PROGS := ipc_unmuxed rtas_filter
>   
> -CFLAGS += -I../../../../../usr/include
> +CFLAGS += $(KHDR_INCLUDES)
>   
>   top_srcdir = ../../../../..
>   include ../../lib.mk
> diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
> index 5881e97c73c1..3876805c2f31 100644
> --- a/tools/testing/selftests/powerpc/tm/Makefile
> +++ b/tools/testing/selftests/powerpc/tm/Makefile
> @@ -17,7 +17,7 @@ $(TEST_GEN_PROGS): ../harness.c ../utils.c
>   CFLAGS += -mhtm
>   
>   $(OUTPUT)/tm-syscall: tm-syscall-asm.S
> -$(OUTPUT)/tm-syscall: CFLAGS += -I../../../../../usr/include
> +$(OUTPUT)/tm-syscall: CFLAGS += $(KHDR_INCLUDES)
>   $(OUTPUT)/tm-tmspr: CFLAGS += -pthread
>   $(OUTPUT)/tm-vmx-unavail: CFLAGS += -pthread -m64
>   $(OUTPUT)/tm-resched-dscr: ../pmu/lib.c

Adding powerpc maitainers.

Would you me to take this patch through kselftest tree? If you
decide to take this through yours:

Acked-by: Shuah Khan <skhan@...uxfoundation.org>

thanks,
-- Shuah