diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2019-06-25 08:42:25 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-25 08:42:25 -0500 |
| commit | d7929c1e13e3788e7cb741d75b5baec5e53eff21 (patch) | |
| tree | cf513071edfc4499b4e025e4846244c9d0e4c6bd /net/ipv4/route.c | |
| parent | 8ac875db0fdc1cfa55c424b38a81cf5282f3df0b (diff) | |
| parent | 80d42db02b3a5beb8cffba08207adf5f4c525ee3 (diff) | |
Merge branch 'drm-next' into drm-next-5.3
Backmerge drm-next and fix up conflicts due to drmP.h removal.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 11ddc276776e..6cb7cff22db9 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 @@ -1985,7 +1981,7 @@ 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. */ @@ -2062,6 +2058,9 @@ 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; } @@ -2099,18 +2098,15 @@ 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; } } |