Message-ID: <a0dbbe49-ee6d-7e69-a472-5dc76d3e2c14@linuxfoundation.org>
Date:   Mon, 30 Jan 2023 10:01:23 -0700
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Subject: Re: [PATCH 31/34] selftests: iommu: Use installed kernel headers
 search path
Content-Language: en-US
To:     Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Shuah Khan <shuah@kernel.org>, linux-kselftest@vger.kernel.org,
        Ingo Molnar <mingo@redhat.com>, Jason Gunthorpe <jgg@ziepe.ca>
Cc:     linux-kernel@vger.kernel.org, iommu@lists.linux.dev,
        Shuah Khan <skhan@linuxfoundation.org>
References: <20230127135755.79929-1-mathieu.desnoyers@efficios.com>
 <20230127135755.79929-32-mathieu.desnoyers@efficios.com>
From:   Shuah Khan <skhan@linuxfoundation.org>
In-Reply-To: <20230127135755.79929-32-mathieu.desnoyers@efficios.com>
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Precedence: bulk

On 1/27/23 06:57, Mathieu Desnoyers wrote:
> Use $(KHDR_INCLUDES) as lookup path for installed kernel headers rather
> than using kernel headers in include/uapi from the source kernel tree
> kernel headers.
> 
> Remove bogus ../../../../include/ from the search path, because
> kernel source headers are not needed by those user-space selftests, and
> it causes issues because -I paths are searched before -isystem paths,
> and conflicts for files appearing both in kernel sources and in uapi
> headers with incompatible semantics (e.g. types.h).
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Cc: Shuah Khan <shuah@kernel.org>
> Cc: linux-kselftest@vger.kernel.org
> Cc: Ingo Molnar <mingo@redhat.com>
> ---
>   tools/testing/selftests/iommu/Makefile | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/tools/testing/selftests/iommu/Makefile b/tools/testing/selftests/iommu/Makefile
> index 7cb74d26f141..32c5fdfd0eef 100644
> --- a/tools/testing/selftests/iommu/Makefile
> +++ b/tools/testing/selftests/iommu/Makefile
> @@ -1,7 +1,6 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>   CFLAGS += -Wall -O2 -Wno-unused-function
> -CFLAGS += -I../../../../include/uapi/
> -CFLAGS += -I../../../../include/
> +CFLAGS += $(KHDR_INCLUDES)
>   
>   CFLAGS += -D_GNU_SOURCE
>   

Adding iommu test maintainers:

I plan to take this through kselftest unless there are conflicts.
In case there are conflicts and you want to take this through yours

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

thanks,
-- Shuah