(Now with correct address for Juergen) On 9/3/19 6:15 PM, Boris Ostrovsky wrote: > On 9/2/19 9:03 AM, Christoph Hellwig wrote: >> diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c >> index b8808677ae1d..f9dd4cb6e4b3 100644 >> --- a/drivers/xen/swiotlb-xen.c >> +++ b/drivers/xen/swiotlb-xen.c >> @@ -299,8 +299,7 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t >> size, >> * address. In fact on ARM virt_to_phys only works for kernel direct >> * mapped RAM memory. Also see comment below. >> */ >> - ret = xen_alloc_coherent_pages(hwdev, size, dma_handle, flags, attrs); >> - >> + ret = dma_direct_alloc(hwdev, size, dma_handle, flags, attrs); > > If I am reading __dma_direct_alloc_pages() correctly there is a path > that will force us to use GFP_DMA32 and as Juergen pointed out in > another message that may not be desirable. > > -boris > > >
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