Messages in this thread | | | Date | Tue, 18 Apr 2017 15:21:26 +0100 | From | Catalin Marinas <> | Subject | Re: [PATCH 1/2] xen/arm, arm64: fix xen_dma_ops after 815dd18 "Consolidate get_dma_ops..." |
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On Thu, Apr 13, 2017 at 02:04:21PM -0700, Stefano Stabellini wrote: > The following commit: > > commit 815dd18788fe0d41899f51b91d0560279cf16b0d > Author: Bart Van Assche <bart.vanassche@sandisk.com> > Date: Fri Jan 20 13:04:04 2017 -0800 > > treewide: Consolidate get_dma_ops() implementations > > rearranges get_dma_ops in a way that xen_dma_ops are not returned when > running on Xen anymore, dev->dma_ops is returned instead (see > arch/arm/include/asm/dma-mapping.h:get_arch_dma_ops and > include/linux/dma-mapping.h:get_dma_ops). > > Fix the problem by storing dev->dma_ops in dev_archdata, and setting > dev->dma_ops to xen_dma_ops. This way, xen_dma_ops is returned naturally > by get_dma_ops. The Xen code can retrieve the original dev->dma_ops from > dev_archdata when needed. It also allows us to remove __generic_dma_ops > from common headers. > > Signed-off-by: Stefano Stabellini <sstabellini@kernel.org> > Tested-by: Julien Grall <julien.grall@arm.com> > Suggested-by: Catalin Marinas <catalin.marinas@arm.com> > CC: linux@armlinux.org.uk > CC: catalin.marinas@arm.com > CC: will.deacon@arm.com > CC: boris.ostrovsky@oracle.com > CC: jgross@suse.com > CC: Julien Grall <julien.grall@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
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