Re: [PATCH] dmaengine: idxd: No need to clear memory after a dma_alloc_coherent() call

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To: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>, Dave Jiang <dave.jiang@xxxxxxxxx>, Vinod Koul <vkoul@xxxxxxxxxx>
Subject: Re: [PATCH] dmaengine: idxd: No need to clear memory after a dma_alloc_coherent() call
From: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Date: Tue, 30 May 2023 08:51:36 -0700
Cc: <linux-kernel@xxxxxxxxxxxxxxx>, <kernel-janitors@xxxxxxxxxxxxxxx>, <dmaengine@xxxxxxxxxxxxxxx>
In-reply-to: <f44be04317387f8936d31d5470963541615f30ef.1685283065.git.christophe.jaillet@wanadoo.fr>
References: <f44be04317387f8936d31d5470963541615f30ef.1685283065.git.christophe.jaillet@wanadoo.fr>
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 Thunderbird/91.11.0



On 5/28/23 07:11, Christophe JAILLET wrote:

dma_alloc_coherent() already clear the allocated memory, there is no need
to explicitly call memset().

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>


Acked-by: Fenghua Yu <fenghua.yu@xxxxxxxxx>

Thanks.

-Fenghua

References:
- [PATCH] dmaengine: idxd: No need to clear memory after a dma_alloc_coherent() call
  - From: Christophe JAILLET

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