From: Greg Kroah-Hartman gregkh@linuxfoundation.org
From: Christoph Hellwig hch@lst.de
commit b116c702791a9834e6485f67ca6267d9fdf59b87 upstream.
RDMA ULPs must not call DMA mapping APIs directly but instead use the ib_dma_* wrappers.
Fixes: 0c16d9635e3a ("RDMA/umem: Move to allocate SG table from pages") Link: https://lore.kernel.org/r/20201106181941.1878556-3-hch@lst.de Reported-by: Jason Gunthorpe jgg@nvidia.com Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Jason Gunthorpe jgg@nvidia.com Cc: "Marciniszyn, Mike" mike.marciniszyn@cornelisnetworks.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/infiniband/core/umem.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -220,10 +220,10 @@ struct ib_umem *ib_umem_get(struct ib_de
cur_base += ret * PAGE_SIZE; npages -= ret; - sg = __sg_alloc_table_from_pages( - &umem->sg_head, page_list, ret, 0, ret << PAGE_SHIFT, - dma_get_max_seg_size(device->dma_device), sg, npages, - GFP_KERNEL); + sg = __sg_alloc_table_from_pages(&umem->sg_head, page_list, ret, + 0, ret << PAGE_SHIFT, + ib_dma_max_seg_size(device), sg, npages, + GFP_KERNEL); umem->sg_nents = umem->sg_head.nents; if (IS_ERR(sg)) { unpin_user_pages_dirty_lock(page_list, ret, 0);