Re: [PATCH v2] iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE
From: Joerg Roedel
Date: Mon Mar 18 2019 - 06:17:08 EST
thanks a lot for looking into this and tracking it down!
On Wed, Mar 13, 2019 at 10:03:17AM +0100, Stanislaw Gruszka wrote:
> - s->dma_address += address + s->offset;
> + /* Add in the remaining piece of the scatter-gather offset that
> + * was masked out when we were determining the physical address
> + * via (sg_phys(s) & PAGE_MASK) earlier.
> + */
> + s->dma_address += address + (s->offset & ~PAGE_MASK);
> s->dma_length = s->length;
Applied the patch for v5.1 (with an added Fixes-tag and a minor coding
style change) and will send it upstream soon.