[PATCH] arm64: dma-mapping: check whether cma area is initialized or not

[Will Deacon]

On Fri, Sep 11, 2015 at 12:00:37PM +0100, Catalin Marinas wrote:
> On Fri, Sep 11, 2015 at 03:49:47PM +0800, Jisheng Zhang wrote:
> > If CMA is turned on and CMA size is set to zero, kernel should
> > behave as if CMA was not enabled at compile time.
> > Every dma allocation should check existence of cma area
> > before requesting memory.
> > 
> > Arm has done this by commit e464ef16c4f0 ("arm: dma-mapping: add
> > checking cma area initialized"), also do this for arm64.
> > 
> > Signed-off-by: Jisheng Zhang <jszhang at marvell.com>
> 
> Acked-by: Catalin Marinas <catalin.marinas at arm.com>
> 
> Will should pick this up for 4.3.

Yup, queued already. I'll push out at -rc1.

Will