[PATCH net-next v2 13/18] xsk: allow attaching XSk pool via xdp_rxq_info_reg_mem_model()

[Alexander Lobakin]

When you register an XSk pool as XDP Rxq info memory model, you then
need to manually attach it after the registration.
Let the user combine both actions into one by just passing a pointer
to the pool directly to xdp_rxq_info_reg_mem_model(), which will take
care of calling xsk_pool_set_rxq_info(). This looks similar to how a
&page_pool gets registered and reduce repeating driver code.

Signed-off-by: Alexander Lobakin <aleksander.lobakin@xxxxxxxxx>
---
 net/core/xdp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/core/xdp.c b/net/core/xdp.c
index 9dc103a09b5c..371c26c203b2 100644
--- a/net/core/xdp.c
+++ b/net/core/xdp.c
@@ -358,6 +358,9 @@ int xdp_rxq_info_reg_mem_model(struct xdp_rxq_info *xdp_rxq,
 	if (IS_ERR(xdp_alloc))
 		return PTR_ERR(xdp_alloc);
 
+	if (type == MEM_TYPE_XSK_BUFF_POOL && allocator)
+		xsk_pool_set_rxq_info(allocator, xdp_rxq);
+
 	if (trace_mem_connect_enabled() && xdp_alloc)
 		trace_mem_connect(xdp_alloc, xdp_rxq);
 	return 0;
-- 
2.46.2