Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Some ISDN files that got removed in net-next had some changes
done in mainline, take the removals.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 17 deletions

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 4a1168451f3a..0700a7d59811 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
@@ -55,11 +56,6 @@
  *	Eric Dumazet		:	hashed spinlocks and rt_check_expire() fixes.
  * 	Ilia Sotnikov		:	Ignore TOS on PMTUD and Redirect
  * 	Ilia Sotnikov		:	Removed TOS from hash calculations
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
  */
 
 #define pr_fmt(fmt) "IPv4: " fmt
@@ -1986,7 +1982,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	u32		itag = 0;
 	struct rtable	*rth;
 	struct flowi4	fl4;
-	bool do_cache;
+	bool do_cache = true;
 
 	/* IP on this device is disabled. */
 
@@ -2063,6 +2059,9 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 	if (res->type == RTN_BROADCAST) {
 		if (IN_DEV_BFORWARD(in_dev))
 			goto make_route;
+		/* not do cache if bc_forwarding is enabled */
+		if (IPV4_DEVCONF_ALL(net, BC_FORWARDING))
+			do_cache = false;
 		goto brd_input;
 	}
 
@@ -2100,18 +2099,15 @@ brd_input:
 	RT_CACHE_STAT_INC(in_brd);
 
 local_input:
-	do_cache = false;
-	if (res->fi) {
-		if (!itag) {
-			struct fib_nh_common *nhc = FIB_RES_NHC(*res);
+	do_cache &= res->fi && !itag;
+	if (do_cache) {
+		struct fib_nh_common *nhc = FIB_RES_NHC(*res);
 
-			rth = rcu_dereference(nhc->nhc_rth_input);
-			if (rt_cache_valid(rth)) {
-				skb_dst_set_noref(skb, &rth->dst);
-				err = 0;
-				goto out;
-			}
-			do_cache = true;
+		rth = rcu_dereference(nhc->nhc_rth_input);
+		if (rt_cache_valid(rth)) {
+			skb_dst_set_noref(skb, &rth->dst);
+			err = 0;
+			goto out;
 		}
 	}