linux-kernel - Re: [PATCH v3] tools/dma: move dma_map_benchmark from selftests to tools/dma

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Message-ID: <CAGsJ_4xSMa+8hExgLMp8R0m9SsRnVxQxP42NxD13xPpQ52SOQQ@mail.gmail.com>
Date: Tue, 21 Oct 2025 22:21:25 +1300
From: Barry Song <21cnbao@...il.com>
To: Qinxin Xia <xiaqinxin@...wei.com>
Cc: m.szyprowski@...sung.com, robin.murphy@....com, prime.zeng@...wei.com, 
	fanghao11@...wei.com, linux-kernel@...r.kernel.org, linuxarm@...wei.com, 
	wangzhou1@...ilicon.com
Subject: Re: [PATCH v3] tools/dma: move dma_map_benchmark from selftests to tools/dma

> Hello Barry:
>
> Sorry, I don't think it a workaround.When kernel builds with
> 'CONFIG_UAPI_HEADER_TEST=y'. The build system will checks on the
> user space API header files in the usr/include directory.
> The header file must be compiled independently.
>
> '__u32' '__u64' in map_benchmark.h depends on the definition of linux/
> types.h. If map_benchmark.h does not include types.h,there will lead to
> hdrtest error.
>
> That's why I do that.
>

Ok. Thanks for the clarification. make sense to me now.

Best regards
Barry