[dpdk-dev] [PATCH 1/2] af_xdp: not return a negative value in af_xdp_rx_zc

[Li RongQing]

af_xdp_rx_zc should always return the number of received packets,
and negative value will be as number of received packets, and
confuse the caller

Fixes: d8a210774e1d ("net/af_xdp: support unaligned umem chunks")
Cc: stable at dpdk.org
Signed-off-by: Li RongQing <lirongqing at baidu.com>
---
 drivers/net/af_xdp/rte_eth_af_xdp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c b/drivers/net/af_xdp/rte_eth_af_xdp.c
index 936d4a7d5..7ce4ad04a 100644
--- a/drivers/net/af_xdp/rte_eth_af_xdp.c
+++ b/drivers/net/af_xdp/rte_eth_af_xdp.c
@@ -236,7 +236,7 @@ af_xdp_rx_zc(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 	if (rte_pktmbuf_alloc_bulk(umem->mb_pool, fq_bufs, nb_pkts)) {
 		AF_XDP_LOG(DEBUG,
 			"Failed to get enough buffers for fq.\n");
-		return -1;
+		return 0;
 	}
 
 	rcvd = xsk_ring_cons__peek(rx, nb_pkts, &idx_rx);
-- 
2.16.2