ethdev: fix data room size verification in Rx queue setup

[dpdk.git] / lib / librte_ethdev / rte_ethdev.c

diff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c
index 7022bd7f56f04e8d2c4245c8a1e3e479c8e7cbd8..e3b2a097615cd4151a8a26bc7d2e0639be4235f4 100644 (file)
--- a/lib/librte_ethdev/rte_ethdev.c
+++ b/lib/librte_ethdev/rte_ethdev.c
@@ -1820,7 +1820,7 @@ rte_eth_rx_queue_setup(uint16_t port_id, uint16_t rx_queue_id,
        }
        mbp_buf_size = rte_pktmbuf_data_room_size(mp);
 
-       if ((mbp_buf_size - RTE_PKTMBUF_HEADROOM) < dev_info.min_rx_bufsize) {
+       if (mbp_buf_size < dev_info.min_rx_bufsize + RTE_PKTMBUF_HEADROOM) {
                RTE_ETHDEV_LOG(ERR,
                        "%s mbuf_data_room_size %d < %d (RTE_PKTMBUF_HEADROOM=%d + min_rx_bufsize(dev)=%d)\n",
                        mp->name, (int)mbp_buf_size,