From 1057c55f6b6cdc4fa3e8e29cfb9061c211e58395 Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Thu, 18 Jan 2018 11:20:54 -0500 Subject: net: sched: cls: add extack support for tcf_change_indev This patch adds extack handling for the tcf_change_indev function which is common used by TC classifier implementations. Cc: David Ahern Signed-off-by: Alexander Aring Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- include/net/pkt_cls.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'include/net') diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index 6dd009e10e5d..2e4b8e436d25 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -557,13 +557,16 @@ static inline int tcf_valid_offset(const struct sk_buff *skb, #include static inline int -tcf_change_indev(struct net *net, struct nlattr *indev_tlv) +tcf_change_indev(struct net *net, struct nlattr *indev_tlv, + struct netlink_ext_ack *extack) { char indev[IFNAMSIZ]; struct net_device *dev; - if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) + if (nla_strlcpy(indev, indev_tlv, IFNAMSIZ) >= IFNAMSIZ) { + NL_SET_ERR_MSG(extack, "Interface name too long"); return -EINVAL; + } dev = __dev_get_by_name(net, indev); if (!dev) return -ENODEV; -- cgit v1.2.3-58-ga151