Re: [PATCH net-next v3 1/3] ipv4: support sport, dport and ip_proto in RTM_GETROUTE
From: David Miller <davem@davemloft.net>
Date: 2018-05-16 18:37:16
From: Roopa Prabhu <redacted> Date: Tue, 15 May 2018 20:55:06 -0700
+static int inet_rtm_getroute_reply(struct sk_buff *in_skb, struct nlmsghdr *nlh,
+ __be32 dst, __be32 src, struct flowi4 *fl4,
+ struct rtable *rt, struct fib_result *res)
+{
+ struct net *net = sock_net(in_skb->sk);
+ struct rtmsg *rtm = nlmsg_data(nlh);
+ u32 table_id = RT_TABLE_MAIN;
+ struct sk_buff *skb;
+ int err = 0;
+
+ skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;If the caller can use GFP_KERNEL, so can this allocation.