[PATCH 3/8] xsk: add usage of xdp netdev_features flags

[alardam]

From: Marek Majtyka <marekx.majt...@intel.com>

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

Signed-off-by: Marek Majtyka <marekx.majt...@intel.com>
---
 net/xdp/xsk_buff_pool.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c
index 8a3bf4e1318e..76922696ad3c 100644
--- a/net/xdp/xsk_buff_pool.c
+++ b/net/xdp/xsk_buff_pool.c
@@ -159,8 +159,8 @@ static 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 (!(NETIF_F_XDP & netdev->features &&
+             NETIF_F_AF_XDP_ZC & netdev->features)) {
                err = -EOPNOTSUPP;
                goto err_unreg_pool;
        }
-- 
2.20.1