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RDMA/mlx5: Avoid direct access to DMA device pointer

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The dma_device field is marked as internal and must not be accessed by
drivers or ULPs. Remove all direct mlx5 references to this field.

Link: https://patch.msgid.link/20260104-ib-core-misc-v1-4-00367f77f3a8@nvidia.com
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
This commit is contained in:
Leon Romanovsky 2026-01-04 15:51:36 +02:00 committed by Leon Romanovsky
parent 6dc78c53de
commit 522a5c1c56
1 changed files with 6 additions and 5 deletions
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11
drivers/infiniband/hw/mlx5/mr.c
View File

@ -1646,10 +1646,13 @@ reg_user_mr_dmabuf(struct ib_pd *pd, struct device *dma_device,
offset, length, fd,
access_flags,
&mlx5_ib_dmabuf_attach_ops);
else
else if (dma_device)
umem_dmabuf = ib_umem_dmabuf_get_pinned_with_dma_device(&dev->ib_dev,
dma_device, offset, length,
fd, access_flags);
else
umem_dmabuf = ib_umem_dmabuf_get_pinned(
&dev->ib_dev, offset, length, fd, access_flags);
if (IS_ERR(umem_dmabuf)) {
mlx5_ib_dbg(dev, "umem_dmabuf get failed (%pe)\n", umem_dmabuf);
@ -1782,10 +1785,8 @@ struct ib_mr *mlx5_ib_reg_user_mr_dmabuf(struct ib_pd *pd, u64 offset,
return reg_user_mr_dmabuf_by_data_direct(pd, offset, length, virt_addr,
fd, access_flags);
return reg_user_mr_dmabuf(pd, pd->device->dma_device,
offset, length, virt_addr,
fd, access_flags, MLX5_MKC_ACCESS_MODE_MTT,
dmah);
return reg_user_mr_dmabuf(pd, NULL, offset, length, virt_addr, fd,
access_flags, MLX5_MKC_ACCESS_MODE_MTT, dmah);
}
/*