[OVS_DEFINE([HAVE_SKBUFF_HEADER_HELPERS])])
OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_warn_if_lro],
[OVS_DEFINE([HAVE_SKB_WARN_LRO])])
[OVS_DEFINE([HAVE_SKBUFF_HEADER_HELPERS])])
OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_warn_if_lro],
[OVS_DEFINE([HAVE_SKB_WARN_LRO])])