net/mlx5e: xsk: Remove mlx5e_xsk_page_alloc_pool

mlx5e_xsk_page_alloc_pool became a thin wrapper around xsk_buff_alloc.
Drop it and call xsk_buff_alloc directly.
Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.h

@@ -18,16 +18,6 @@ struct sk_buff *mlx5e_xsk_skb_from_cqe_linear(struct mlx5e_rq *rq,
 					      struct mlx5e_wqe_frag_info *wi,
 					      u32 cqe_bcnt);
 
-static inline int mlx5e_xsk_page_alloc_pool(struct mlx5e_rq *rq,
-					    union mlx5e_alloc_unit *au)
-{
-	au->xsk = xsk_buff_alloc(rq->xsk_pool);
-	if (!au->xsk)
-		return -ENOMEM;
-
-	return 0;
-}
-
 static inline bool mlx5e_xsk_update_rx_wakeup(struct mlx5e_rq *rq, bool alloc_err)
 {
 	if (!xsk_uses_need_wakeup(rq->xsk_pool))

drivers/net/ethernet/mellanox/mlx5/core/en_rx.c

@@ -302,10 +302,12 @@ static inline int mlx5e_page_alloc_pool(struct mlx5e_rq *rq, union mlx5e_alloc_u
 
 static inline int mlx5e_page_alloc(struct mlx5e_rq *rq, union mlx5e_alloc_unit *au)
 {
-	if (rq->xsk_pool)
-		return mlx5e_xsk_page_alloc_pool(rq, au);
-	else
+	if (rq->xsk_pool) {
+		au->xsk = xsk_buff_alloc(rq->xsk_pool);
+		return likely(au->xsk) ? 0 : -ENOMEM;
+	} else {
 		return mlx5e_page_alloc_pool(rq, au);
+	}
 }
 
 void mlx5e_page_dma_unmap(struct mlx5e_rq *rq, struct page *page)