ipmr, ip6mr: fix scheduling while atomic and a deadlock with ipmr_get_route

[firefly-linux-kernel-4.4.55.git] / net / ipv4 / ipmr.c

diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 9d1e555496e35fa878cb61491336391b93c5183f..8e77786549c614a8aa0d979dbab37cdb84d4cea8 100644 (file)
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -2192,7 +2192,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
 
 int ipmr_get_route(struct net *net, struct sk_buff *skb,
                   __be32 saddr, __be32 daddr,
-                  struct rtmsg *rtm, int nowait)
+                  struct rtmsg *rtm, int nowait, u32 portid)
 {
        struct mfc_cache *cache;
        struct mr_table *mrt;
@@ -2237,6 +2237,7 @@ int ipmr_get_route(struct net *net, struct sk_buff *skb,
                        return -ENOMEM;
                }
 
+               NETLINK_CB(skb2).portid = portid;
                skb_push(skb2, sizeof(struct iphdr));
                skb_reset_network_header(skb2);
                iph = ip_hdr(skb2);