diff options
Diffstat (limited to 'drivers/pci/p2pdma.c')
| -rw-r--r-- | drivers/pci/p2pdma.c | 25 |
1 files changed, 1 insertions, 24 deletions
diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c index bace04145c5f..196382630363 100644 --- a/drivers/pci/p2pdma.c +++ b/drivers/pci/p2pdma.c @@ -556,15 +556,6 @@ int pci_p2pdma_distance_many(struct pci_dev *provider, struct device **clients, return -1; for (i = 0; i < num_clients; i++) { -#ifdef CONFIG_DMA_VIRT_OPS - if (clients[i]->dma_ops == &dma_virt_ops) { - if (verbose) - dev_warn(clients[i], - "cannot be used for peer-to-peer DMA because the driver makes use of dma_virt_ops\n"); - return -1; - } -#endif - pci_client = find_parent_pci_dev(clients[i]); if (!pci_client) { if (verbose) @@ -834,24 +825,10 @@ static int __pci_p2pdma_map_sg(struct pci_p2pdma_pagemap *p2p_pgmap, struct device *dev, struct scatterlist *sg, int nents) { struct scatterlist *s; - phys_addr_t paddr; int i; - /* - * p2pdma mappings are not compatible with devices that use - * dma_virt_ops. If the upper layers do the right thing - * this should never happen because it will be prevented - * by the check in pci_p2pdma_distance_many() - */ -#ifdef CONFIG_DMA_VIRT_OPS - if (WARN_ON_ONCE(dev->dma_ops == &dma_virt_ops)) - return 0; -#endif - for_each_sg(sg, s, nents, i) { - paddr = sg_phys(s); - - s->dma_address = paddr - p2p_pgmap->bus_offset; + s->dma_address = sg_phys(s) - p2p_pgmap->bus_offset; sg_dma_len(s) = s->length; } |