linux-kernel - Re: [PATCH 2/5] dmaengine: vdma: Use dma_pool

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Date:	Fri, 29 Apr 2016 14:13:25 -0700
From:	Sören Brinkmann <soren.brinkmann@...inx.com>
To:	Julia Lawall <Julia.Lawall@...6.fr>
CC:	Dan Williams <dan.j.williams@...el.com>,
	<kernel-janitors@...r.kernel.org>,
	Vinod Koul <vinod.koul@...el.com>,
	"Michal Simek" <michal.simek@...inx.com>,
	<dmaengine@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/5] dmaengine: vdma: Use dma_pool_zalloc

On Fri, 2016-04-29 at 22:09:09 +0200, Julia Lawall wrote:
> Dma_pool_zalloc combines dma_pool_alloc and memset 0.  The semantic patch
> that makes this transformation is as follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression d,e;
> statement S;
> @@
> 
>         d =
> -            dma_pool_alloc
> +            dma_pool_zalloc
>              (...);
>         if (!d) S
> -       memset(d, 0, sizeof(*d));
> // </smpl>
> 
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
Acked-by: Sören Brinkmann <soren.brinkmann@...inx.com>

	Sören