+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_transport_header],
+ [OVS_DEFINE([HAVE_SKBUFF_HEADER_HELPERS])])
+ OVS_GREP_IFELSE([$KSRC26/include/linux/skbuff.h], [skb_warn_if_lro],
+ [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/linux/string.h $KSRC26/include/linux/slab.h],
+ [kmemdup], [OVS_DEFINE([HAVE_KMEMDUP])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/linux/types.h], [bool],
+ [OVS_DEFINE([HAVE_BOOL_TYPE])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/net/checksum.h], [csum_unfold],
+ [OVS_DEFINE([HAVE_CSUM_UNFOLD])])
+
+ OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [NLA_NUL_STRING],
+ [OVS_DEFINE([HAVE_NLA_NUL_STRING])])
+ OVS_GREP_IFELSE([$KSRC26/include/net/netlink.h], [nla_get_be16],
+ [OVS_DEFINE([HAVE_NLA_GET_BE16])])
+