linux-kernel - Re: [PATCH 01/22] pci-dma-compat: Add pci_zalloc

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Message-ID: <1403532208.18747.58.camel@joe-AO725>
Date:	Mon, 23 Jun 2014 07:03:28 -0700
From:	Joe Perches <joe@...ches.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH 01/22] pci-dma-compat: Add pci_zalloc_consistent helper

On Mon, 2014-06-23 at 15:53 +0200, Arnd Bergmann wrote:
> On Monday 23 June 2014 06:41:29 Joe Perches wrote:
> > Add this helper for consistency with pci_zalloc_coherent
> > and the ability to remove unnecessary memset(,0,) uses.

> Shouldn't these drivers just use the normal dma-mapping API now?

Maybe.  I wouldn't mind.

They do seem to have a trivial bit of unnecessary overhead for 

hwdev == NULL ? NULL : &hwdev->dev


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