Re: [PATCH 16/16] dma-mapping: use exact allocation in dma_alloc_contiguous
From: 'Christoph Hellwig' <hch@lst.de>
Date: 2019-06-14 15:06:31
Also in:
dri-devel, intel-gfx, linux-iommu, linux-media, linux-mm, linux-rdma, linux-s390, linux-wireless, lkml, netdev
On Fri, Jun 14, 2019 at 03:01:22PM +0000, David Laight wrote:
I'm pretty sure there is a lot of code out there that makes that assumption. Without it many drivers will have to allocate almost double the amount of memory they actually need in order to get the required alignment. So instead of saving memory you'll actually make more be used.
That code would already be broken on a lot of Linux platforms. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel