skb_make_writable was removed from the kernel in 5.2 and its callers converted to use skb_ensure_writable. Signed-off-by: Jeremy Sowden <jeremy@xxxxxxxxxx> --- extensions/xt_DHCPMAC.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/extensions/xt_DHCPMAC.c b/extensions/xt_DHCPMAC.c index 47f9534f74c7..a748cb101d99 100644 --- a/extensions/xt_DHCPMAC.c +++ b/extensions/xt_DHCPMAC.c @@ -96,7 +96,8 @@ dhcpmac_tg(struct sk_buff *skb, const struct xt_action_param *par) struct udphdr udpbuf, *udph; unsigned int i; - if (!skb_make_writable(skb, 0)) + if (skb_ensure_writable(skb, ip_hdrlen(skb) + sizeof(udpbuf) + + sizeof(dhcpbuf))) return NF_DROP; udph = skb_header_pointer(skb, ip_hdrlen(skb), -- 2.20.1