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From: Qinxin Xia <xiaqinxin@huawei.com>
To: Barry Song <21cnbao@gmail.com>
Cc: <jonathan.cameron@huawei.com>, <wangzhou1@hisilicon.com>,
	<iommu@lists.linux.dev>, <prime.zeng@huawei.com>,
	<fanghao11@huawei.com>, <linux-kernel@vger.kernel.org>,
	<linuxarm@huawei.com>
Subject: Re: [PATCH v5 1/3] dma-mapping: benchmark: modify the framework to adapt to more map modes
Date: Tue, 23 Dec 2025 11:25:43 +0800	[thread overview]
Message-ID: <6833038b-7338-458f-92f3-67eb6faf1a03@huawei.com> (raw)
In-Reply-To: <294a3819-d850-4d90-8112-da9a21a6acf1@huawei.com>



On 2025/12/23 11:13:32, Qinxin Xia <xiaqinxin@huawei.com> wrote:
> 
> 
> On 2025/12/23 10:58:28, Barry Song <21cnbao@gmail.com> wrote:
>> I’ve reviewed it many times. You are:
>>
>> +               if (!mb_ops->prepare_data)
>> +                       mb_ops->prepare_data(mparam);
>>
>> not
>>                 if (mb_ops->prepare_data)
>>                         mb_ops->prepare_data(mparam);
>> Am I crazy?
>>
>> Thanks
>> Barry
> Yes, I've found the mistake...
> 
> So in my just reply, I mentioned the correct modification of the
> "if (mb_ops->prepare_data)" and suggested that if you want to test it
> before the next version, you can modify the patch in this way.
> 
> Sorry for the confusion
> 

if (!mb_ops->prepare_data) is a bug. Thank you for catching it.
I've tested the correct version and it works.

-- 
Thanks,
Qinxin


  reply	other threads:[~2025-12-23  3:25 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-22 15:32 [PATCH v5 0/3] dma-mapping: benchmark: Add support for dma_map_sg Qinxin Xia
2025-12-22 15:32 ` [PATCH v5 1/3] dma-mapping: benchmark: modify the framework to adapt to more map modes Qinxin Xia
2025-12-22 21:03   ` Barry Song
2025-12-23  2:51     ` Qinxin Xia
2025-12-23  2:58       ` Barry Song
2025-12-23  3:13         ` Qinxin Xia
2025-12-23  3:25           ` Qinxin Xia [this message]
2025-12-23  3:12       ` Barry Song
2025-12-22 15:32 ` [PATCH v5 2/3] dma-mapping: benchmark: add support for dma_map_sg Qinxin Xia
2025-12-22 21:12   ` Barry Song
2025-12-22 15:32 ` [PATCH v5 3/3] tools/dma: Add dma_map_sg support Qinxin Xia
2025-12-22 21:10   ` Barry Song
2025-12-23  3:14     ` Qinxin Xia

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