linux-kernel - Re: [PATCH 02/34] selftests: bpf: Fix incorrect kernel headers search path

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Message-ID: <4defb04e-ddcb-b344-6e9f-35023dee0d2a@linuxfoundation.org>
Date:   Mon, 30 Jan 2023 09:12:36 -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>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        bpf <bpf@...r.kernel.org>, Networking <netdev@...r.kernel.org>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 02/34] selftests: bpf: 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/bpf/Makefile | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> index c22c43bbee19..6998c816afef 100644
> --- a/tools/testing/selftests/bpf/Makefile
> +++ b/tools/testing/selftests/bpf/Makefile
> @@ -327,7 +327,7 @@ endif
>   CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))
>   BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) 		\
>   	     -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR)			\
> -	     -I$(abspath $(OUTPUT)/../usr/include)
> +	     $(KHDR_INCLUDES)
>   
>   CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
>   	       -Wno-compare-distinct-pointer-types



Adding bpf maintainers - bpf patches usually go through bpf tree.

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

thanks,
-- Shuah