Now dma mappings are used by the physical NICs. However the vNIC
maybe do not need them. So remove non-zero 'dma_page' check in
xp_assign_dev.
Signed-off-by: Yunjian Wang <wangyunjian@xxxxxxxxxx>
---
net/xdp/xsk_buff_pool.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c
index ce60ecd48a4d..a5af75b1f43c 100644
--- a/net/xdp/xsk_buff_pool.c
+++ b/net/xdp/xsk_buff_pool.c
@@ -219,16 +219,9 @@ int xp_assign_dev(struct xsk_buff_pool *pool,
if (err)
goto err_unreg_pool;
- if (!pool->dma_pages) {
- WARN(1, "Driver did not DMA map zero-copy buffers");
- err = -EINVAL;
- goto err_unreg_xsk;
- }
pool->umem->zc = true;
return 0;
-err_unreg_xsk:
- xp_disable_drv_zc(pool);
err_unreg_pool:
if (!force_zc)
err = 0; /* fallback to copy mode */
--
2.41.0
