kni: do not use assignment in if condition

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/lib/librte_eal/linuxapp/kni/kni_vhost.c b/lib/librte_eal/linuxapp/kni/kni_vhost.c
index bef4889..eacfe3f 100644 (file)
--- a/lib/librte_eal/linuxapp/kni/kni_vhost.c
+++ b/lib/librte_eal/linuxapp/kni/kni_vhost.c
@@ -410,13 +410,14 @@ kni_sock_rcvmsg(struct socket *sock,
 #ifdef RTE_KNI_VHOST_VNET_HDR_EN
        if (likely(q->flags & IFF_VNET_HDR)) {
                vnet_hdr_len = q->vnet_hdr_sz;
-               if ((len -= vnet_hdr_len) < 0)
+               len -= vnet_hdr_len;
+               if (len < 0)
                        return -EINVAL;
        }
 #endif
 
-       if (unlikely(0 == (pkt_len = kni_vhost_net_rx(q->kni,
-               m, vnet_hdr_len, len))))
+       pkt_len = kni_vhost_net_rx(q->kni, m, vnet_hdr_len, len);
+       if (unlikely(pkt_len == 0))
                return 0;
 
 #ifdef RTE_KNI_VHOST_VNET_HDR_EN
@@ -567,7 +568,8 @@ kni_sock_release(struct socket *sock)
        if (q == NULL)
                return 0;
 
-       if (NULL != (kni = q->kni)) {
+       kni = q->kni;
+       if (kni != NULL) {
                kni->vq_status = BE_STOP;
                KNI_VHOST_WAIT_WQ_SAFE();
                kni->vhost_queue = NULL;