New upstream version 17.11.5

[deb_dpdk.git] / lib / librte_gro / gro_tcp4.c

diff --git a/lib/librte_gro/gro_tcp4.c b/lib/librte_gro/gro_tcp4.c
index 61a0423..d1c6c7d 100644 (file)
--- a/lib/librte_gro/gro_tcp4.c
+++ b/lib/librte_gro/gro_tcp4.c
@@ -343,7 +343,8 @@ gro_tcp4_reassemble(struct rte_mbuf *pkt,
        struct ipv4_hdr *ipv4_hdr;
        struct tcp_hdr *tcp_hdr;
        uint32_t sent_seq;
-       uint16_t tcp_dl, ip_id;
+       uint16_t ip_id;
+       int32_t tcp_dl;
 
        struct tcp4_key key;
        uint32_t cur_idx, prev_idx, item_idx;
@@ -360,10 +361,10 @@ gro_tcp4_reassemble(struct rte_mbuf *pkt,
         */
        if (tcp_hdr->tcp_flags != TCP_ACK_FLAG)
                return -1;
-       /* if payload length is 0, return immediately */
+       /* if payload length is less than or equal to 0, return immediately */
        tcp_dl = rte_be_to_cpu_16(ipv4_hdr->total_length) - pkt->l3_len -
                pkt->l4_len;
-       if (tcp_dl == 0)
+       if (tcp_dl <= 0)
                return -1;
 
        ip_id = rte_be_to_cpu_16(ipv4_hdr->packet_id);