| Message ID | 20190826121944.515-11-hch@lst.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [01/11] xen/arm: use dma-noncoherent.h calls for xen-swiotlb cache maintainance | expand |
On Mon, 26 Aug 2019, Christoph Hellwig wrote: > No need for a no-op wrapper. > > Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> > --- > drivers/xen/swiotlb-xen.c | 15 ++++----------- > 1 file changed, 4 insertions(+), 11 deletions(-) > > diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c > index 95911ff9c11c..384304a77020 100644 > --- a/drivers/xen/swiotlb-xen.c > +++ b/drivers/xen/swiotlb-xen.c > @@ -414,9 +414,8 @@ static dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page, > * After this call, reads by the cpu to the buffer are guaranteed to see > * whatever the device wrote there. > */ > -static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr, > - size_t size, enum dma_data_direction dir, > - unsigned long attrs) > +static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, > + size_t size, enum dma_data_direction dir, unsigned long attrs) > { > phys_addr_t paddr = xen_bus_to_phys(dev_addr); > > @@ -430,13 +429,6 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr, > swiotlb_tbl_unmap_single(hwdev, paddr, size, dir, attrs); > } > > -static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, > - size_t size, enum dma_data_direction dir, > - unsigned long attrs) > -{ > - xen_unmap_single(hwdev, dev_addr, size, dir, attrs); > -} > - > static void > xen_swiotlb_sync_single_for_cpu(struct device *dev, dma_addr_t dma_addr, > size_t size, enum dma_data_direction dir) > @@ -477,7 +469,8 @@ xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, > BUG_ON(dir == DMA_NONE); > > for_each_sg(sgl, sg, nelems, i) > - xen_unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir, attrs); > + xen_swiotlb_unmap_page(hwdev, sg->dma_address, sg_dma_len(sg), > + dir, attrs); > > } > > -- > 2.20.1 >
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 95911ff9c11c..384304a77020 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -414,9 +414,8 @@ static dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page, * After this call, reads by the cpu to the buffer are guaranteed to see * whatever the device wrote there. */ -static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr, - size_t size, enum dma_data_direction dir, - unsigned long attrs) +static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, + size_t size, enum dma_data_direction dir, unsigned long attrs) { phys_addr_t paddr = xen_bus_to_phys(dev_addr); @@ -430,13 +429,6 @@ static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr, swiotlb_tbl_unmap_single(hwdev, paddr, size, dir, attrs); } -static void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr, - size_t size, enum dma_data_direction dir, - unsigned long attrs) -{ - xen_unmap_single(hwdev, dev_addr, size, dir, attrs); -} - static void xen_swiotlb_sync_single_for_cpu(struct device *dev, dma_addr_t dma_addr, size_t size, enum dma_data_direction dir) @@ -477,7 +469,8 @@ xen_swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, BUG_ON(dir == DMA_NONE); for_each_sg(sgl, sg, nelems, i) - xen_unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir, attrs); + xen_swiotlb_unmap_page(hwdev, sg->dma_address, sg_dma_len(sg), + dir, attrs); }
No need for a no-op wrapper. Signed-off-by: Christoph Hellwig <hch@lst.de> --- drivers/xen/swiotlb-xen.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-)