diff options
Diffstat (limited to 'drivers/infiniband/core/rw.c')
| -rw-r--r-- | drivers/infiniband/core/rw.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/core/rw.c b/drivers/infiniband/core/rw.c index 13f43ab7220b..a96030b784eb 100644 --- a/drivers/infiniband/core/rw.c +++ b/drivers/infiniband/core/rw.c @@ -285,8 +285,11 @@ static void rdma_rw_unmap_sg(struct ib_device *dev, struct scatterlist *sg, static int rdma_rw_map_sg(struct ib_device *dev, struct scatterlist *sg, u32 sg_cnt, enum dma_data_direction dir) { - if (is_pci_p2pdma_page(sg_page(sg))) + if (is_pci_p2pdma_page(sg_page(sg))) { + if (WARN_ON_ONCE(ib_uses_virt_dma(dev))) + return 0; return pci_p2pdma_map_sg(dev->dma_device, sg, sg_cnt, dir); + } return ib_dma_map_sg(dev, sg, sg_cnt, dir); } |