if_nlmsg_size 3386 net/core/rtnetlink.c nskb = nlmsg_new(if_nlmsg_size(dev, ext_filter_mask), GFP_KERNEL); if_nlmsg_size 3434 net/core/rtnetlink.c if_nlmsg_size(dev, if_nlmsg_size 3499 net/core/rtnetlink.c skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), flags);