> > The logical question is why?
>
> 1. See that's another platform with ARC core so maybe in case of ARM
>DMA allocator already zeroes pages regardless provided flags -
>personally I didn't check that.
Yes, most architectures always clear memory returned by dma_alloc*.
Looks like a few d
Hi Andy,
On Tue, 2018-03-27 at 21:11 +0300, Andy Shevchenko wrote:
> On Tue, Mar 27, 2018 at 8:12 PM, Evgeniy Didin
> wrote:
> > Hello,
> >
> > After commit 57bf5a8963f8 ("dma-mapping: clear harmful GFP_* flags in
> > common code") we noticed problems with Ethernet controller on one of our
>
Hi Christoph, Andy
On 03/27/2018 11:11 AM, Andy Shevchenko wrote:
On Tue, Mar 27, 2018 at 8:12 PM, Evgeniy Didin
wrote:
Hello,
After commit 57bf5a8963f8 ("dma-mapping: clear harmful GFP_* flags in common
code") we noticed problems with Ethernet controller on one of our platforms (namely
A
On Tue, Mar 27, 2018 at 8:12 PM, Evgeniy Didin
wrote:
> Hello,
>
> After commit 57bf5a8963f8 ("dma-mapping: clear harmful GFP_* flags in common
> code") we noticed problems with Ethernet controller on one of our platforms
> (namely ARC HSDK).
> I
> n particular we see that removal of __GFP_ZER
Hello,
After commit 57bf5a8963f8 ("dma-mapping: clear harmful GFP_* flags in common
code") we noticed problems with Ethernet controller on one of our platforms
(namely ARC HSDK).
I
n particular we see that removal of __GFP_ZERO flag in function
dma_alloc_attrs() was the culprit because in our
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