Messages in this thread | | | From | Eugeniy Paltsev <> | Subject | Re: [PATCH 1/2] dma-mapping: zero memory returned from dma_alloc_* | Date | Fri, 14 Dec 2018 12:12:00 +0000 |
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Hi Christoph,
do you have any public git repository with all your dma changes?
I want to test them for ARC.
Thanks.
On Fri, 2018-12-14 at 09:25 +0100, Christoph Hellwig wrote: > If we want to map memory from the DMA allocator to userspace it must be > zeroed at allocation time to prevent stale data leaks. We already do > this on most common architectures, but some architectures don't do this > yet, fix them up, either by passing GFP_ZERO when we use the normal page > allocator or doing a manual memset otherwise. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > --- -- Eugeniy Paltsev | |