Re: [PATCH] selftests/dma: Fix bad array reference.
From: liuye
Date: Sun Mar 02 2025 - 22:24:46 EST
By code observation only.
Thanks,
Liu Ye
在 2025/2/27 05:41, Shuah Khan 写道:
> On 2/25/25 18:31, liuye wrote:
>> 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@xxxxxxxxxx>
>>> ---
>>> 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",
>
> How did you find this problem?
>
> thanks,
> -- Shuah
>
>