linux-kernel - Re: [PATCH] selftests/dma: Fix bad array reference.

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Message-ID: <3b51ae45-4dd4-4238-bf3f-3cb4d263eda4@kylinos.cn>
Date: Wed, 26 Feb 2025 09:31:37 +0800
From: liuye <liuye@...inos.cn>
To: shuah@...nel.org
Cc: zhujun2@...s.chinamobile.com, iommu@...ts.linux.dev,
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests/dma: Fix bad array reference.

Friendly ping.

在 2025/2/6 10:12, Liu Ye 写道:
> dir[directions] should be directions[dir] to correctly index the
> directions array.
>
> Signed-off-by: Liu Ye <liuye@...inos.cn>
> ---
>  tools/testing/selftests/dma/dma_map_benchmark.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/testing/selftests/dma/dma_map_benchmark.c b/tools/testing/selftests/dma/dma_map_benchmark.c
> index b12f1f9babf8..b925756373ce 100644
> --- a/tools/testing/selftests/dma/dma_map_benchmark.c
> +++ b/tools/testing/selftests/dma/dma_map_benchmark.c
> @@ -118,7 +118,7 @@ int main(int argc, char **argv)
>  	}
>  
>  	printf("dma mapping benchmark: threads:%d seconds:%d node:%d dir:%s granule: %d\n",
> -			threads, seconds, node, dir[directions], granule);
> +			threads, seconds, node, directions[dir], granule);
>  	printf("average map latency(us):%.1f standard deviation:%.1f\n",
>  			map.avg_map_100ns/10.0, map.map_stddev/10.0);
>  	printf("average unmap latency(us):%.1f standard deviation:%.1f\n",