Re: [PATCH 01/22] pci-dma-compat: Add pci_zalloc_consistent helper

[Joe Perches]

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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