IFLA_GRE_FWMARK
if (data[IFLA_GRE_FWMARK])
*fwmark = nla_get_u32(data[IFLA_GRE_FWMARK]);
nla_put_u32(skb, IFLA_GRE_FWMARK, t->fwmark))
[IFLA_GRE_FWMARK] = { .type = NLA_U32 },
if (data[IFLA_GRE_FWMARK])
parms->fwmark = nla_get_u32(data[IFLA_GRE_FWMARK]);
nla_put_u32(skb, IFLA_GRE_FWMARK, p->fwmark))
[IFLA_GRE_FWMARK] = { .type = NLA_U32 },