[RFC bpf-next 4/8] xsk: add usage of XDP features flags

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From: Marek Majtyka <alardam@xxxxxxxxx>

Change necessary condition check for XSK from ndo functions to
xdp features flags.

Signed-off-by: Marek Majtyka <alardam@xxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
---
 net/xdp/xsk_buff_pool.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c
index ed6c71826d31..7afd12dd69cc 100644
--- a/net/xdp/xsk_buff_pool.c
+++ b/net/xdp/xsk_buff_pool.c
@@ -178,8 +178,7 @@ int xp_assign_dev(struct xsk_buff_pool *pool,
 		/* For copy-mode, we are done. */
 		return 0;
 
-	if (!netdev->netdev_ops->ndo_bpf ||
-	    !netdev->netdev_ops->ndo_xsk_wakeup) {
+	if ((netdev->xdp_features & XDP_F_FULL_ZC) != XDP_F_FULL_ZC) {
 		err = -EOPNOTSUPP;
 		goto err_unreg_pool;
 	}
-- 
2.38.1




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