I think that miniflow_extract() goes a little overboard on the
OVS_LIKELYs. In particular these seem suspicious:
if (OVS_LIKELY((nw_proto != IPPROTO_HOPOPTS)
if (OVS_LIKELY(nw_proto == IPPROTO_TCP)) {
} else if (OVS_LIKELY(nw_proto == IPPROTO_UDP)) {
} else if (OVS_LIKELY(nw_proto == IPPROTO_SCTP)) {
} else if (OVS_LIKELY(nw_proto == IPPROTO_ICMP)) {
} else if (OVS_LIKELY(nw_proto == IPPROTO_ICMPV6)) {
I would put all of these into a single outermost OVS_LIKELY, to make
it easier to read:
if (OVS_LIKELY(arp) && OVS_LIKELY(arp->ar_hrd == htons(1))
&& OVS_LIKELY(arp->ar_pro == htons(ETH_TYPE_IP))
&& OVS_LIKELY(arp->ar_hln == ETH_ADDR_LEN)
&& OVS_LIKELY(arp->ar_pln == 4)) {
What do you think?
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