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Date: Tue, 6 Oct 2015 20:30:58 +0800
From: kbuild test robot <lkp@...el.com>
To: Nikolay Aleksandrov <razor@...ckwall.org>
Cc: kbuild-all@...org, netdev@...r.kernel.org,
roopa@...ulusnetworks.com, davem@...emloft.net,
stephen@...workplumber.org, bridge@...ts.linux-foundation.org,
shm@...ulusnetworks.com,
Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Subject: Re: [PATCH net-next 1/8] bridge: netlink: export port's root id
Hi Nikolay,
[auto build test WARNING on v4.3-rc4 -- if it's inappropriate base, please ignore]
config: i386-randconfig-x006-201540 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new ones prefixed by >>):
net/bridge/br_netlink.c: In function 'br_port_info_size':
net/bridge/br_netlink.c:116:27: error: invalid application of 'sizeof' to incomplete type 'struct ifla_bridge_id'
+ nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
^
In file included from include/linux/linkage.h:4:0,
from include/linux/kernel.h:6,
from net/bridge/br_netlink.c:13:
net/bridge/br_netlink.c: In function 'br_port_fill_attrs':
net/bridge/br_netlink.c:151:47: error: invalid application of 'sizeof' to incomplete type 'struct ifla_bridge_id'
nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
^
include/linux/compiler.h:147:28: note: in definition of macro '__trace_if'
if (__builtin_constant_p((cond)) ? !!(cond) : \
^
>> net/bridge/br_netlink.c:139:2: note: in expansion of macro 'if'
if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
^
net/bridge/br_netlink.c:151:47: error: invalid application of 'sizeof' to incomplete type 'struct ifla_bridge_id'
nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
^
include/linux/compiler.h:147:40: note: in definition of macro '__trace_if'
if (__builtin_constant_p((cond)) ? !!(cond) : \
^
>> net/bridge/br_netlink.c:139:2: note: in expansion of macro 'if'
if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
^
net/bridge/br_netlink.c:151:47: error: invalid application of 'sizeof' to incomplete type 'struct ifla_bridge_id'
nla_put(skb, IFLA_BRPORT_ROOT_ID, sizeof(struct ifla_bridge_id),
^
include/linux/compiler.h:158:16: note: in definition of macro '__trace_if'
______r = !!(cond); \
^
>> net/bridge/br_netlink.c:139:2: note: in expansion of macro 'if'
if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
^
net/bridge/br_netlink.c: In function 'br_port_info_size':
net/bridge/br_netlink.c:118:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
vim +/if +139 net/bridge/br_netlink.c
11dc1f36 Stephen Hemminger 2006-05-25 7 * This program is free software; you can redistribute it and/or
11dc1f36 Stephen Hemminger 2006-05-25 8 * modify it under the terms of the GNU General Public License
11dc1f36 Stephen Hemminger 2006-05-25 9 * as published by the Free Software Foundation; either version
11dc1f36 Stephen Hemminger 2006-05-25 10 * 2 of the License, or (at your option) any later version.
11dc1f36 Stephen Hemminger 2006-05-25 11 */
11dc1f36 Stephen Hemminger 2006-05-25 12
11dc1f36 Stephen Hemminger 2006-05-25 @13 #include <linux/kernel.h>
5a0e3ad6 Tejun Heo 2010-03-24 14 #include <linux/slab.h>
bb900b27 stephen hemminger 2011-04-04 15 #include <linux/etherdevice.h>
32fe21c0 Thomas Graf 2007-03-22 16 #include <net/rtnetlink.h>
881d966b Eric W. Biederman 2007-09-17 17 #include <net/net_namespace.h>
b854272b Denis V. Lunev 2007-12-01 18 #include <net/sock.h>
407af329 Vlad Yasevich 2013-02-13 19 #include <uapi/linux/if_bridge.h>
bb900b27 stephen hemminger 2011-04-04 20
11dc1f36 Stephen Hemminger 2006-05-25 21 #include "br_private.h"
b03b6dd5 Vitalii Demianets 2011-11-25 22 #include "br_private_stp.h"
11dc1f36 Stephen Hemminger 2006-05-25 23
fed0a159 Roopa Prabhu 2015-02-25 24 static int br_get_num_vlan_infos(const struct net_port_vlans *pv,
fed0a159 Roopa Prabhu 2015-02-25 25 u32 filter_mask)
fed0a159 Roopa Prabhu 2015-02-25 26 {
fed0a159 Roopa Prabhu 2015-02-25 27 u16 vid_range_start = 0, vid_range_end = 0;
fed0a159 Roopa Prabhu 2015-02-25 28 u16 vid_range_flags = 0;
fed0a159 Roopa Prabhu 2015-02-25 29 u16 pvid, vid, flags;
fed0a159 Roopa Prabhu 2015-02-25 30 int num_vlans = 0;
fed0a159 Roopa Prabhu 2015-02-25 31
fed0a159 Roopa Prabhu 2015-02-25 32 if (filter_mask & RTEXT_FILTER_BRVLAN)
fed0a159 Roopa Prabhu 2015-02-25 33 return pv->num_vlans;
fed0a159 Roopa Prabhu 2015-02-25 34
fed0a159 Roopa Prabhu 2015-02-25 35 if (!(filter_mask & RTEXT_FILTER_BRVLAN_COMPRESSED))
fed0a159 Roopa Prabhu 2015-02-25 36 return 0;
fed0a159 Roopa Prabhu 2015-02-25 37
fed0a159 Roopa Prabhu 2015-02-25 38 /* Count number of vlan info's
fed0a159 Roopa Prabhu 2015-02-25 39 */
fed0a159 Roopa Prabhu 2015-02-25 40 pvid = br_get_pvid(pv);
fed0a159 Roopa Prabhu 2015-02-25 41 for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) {
fed0a159 Roopa Prabhu 2015-02-25 42 flags = 0;
fed0a159 Roopa Prabhu 2015-02-25 43 if (vid == pvid)
fed0a159 Roopa Prabhu 2015-02-25 44 flags |= BRIDGE_VLAN_INFO_PVID;
fed0a159 Roopa Prabhu 2015-02-25 45
fed0a159 Roopa Prabhu 2015-02-25 46 if (test_bit(vid, pv->untagged_bitmap))
fed0a159 Roopa Prabhu 2015-02-25 47 flags |= BRIDGE_VLAN_INFO_UNTAGGED;
fed0a159 Roopa Prabhu 2015-02-25 48
fed0a159 Roopa Prabhu 2015-02-25 49 if (vid_range_start == 0) {
fed0a159 Roopa Prabhu 2015-02-25 50 goto initvars;
fed0a159 Roopa Prabhu 2015-02-25 51 } else if ((vid - vid_range_end) == 1 &&
fed0a159 Roopa Prabhu 2015-02-25 52 flags == vid_range_flags) {
fed0a159 Roopa Prabhu 2015-02-25 53 vid_range_end = vid;
fed0a159 Roopa Prabhu 2015-02-25 54 continue;
fed0a159 Roopa Prabhu 2015-02-25 55 } else {
fed0a159 Roopa Prabhu 2015-02-25 56 if ((vid_range_end - vid_range_start) > 0)
fed0a159 Roopa Prabhu 2015-02-25 57 num_vlans += 2;
fed0a159 Roopa Prabhu 2015-02-25 58 else
fed0a159 Roopa Prabhu 2015-02-25 59 num_vlans += 1;
fed0a159 Roopa Prabhu 2015-02-25 60 }
fed0a159 Roopa Prabhu 2015-02-25 61 initvars:
fed0a159 Roopa Prabhu 2015-02-25 62 vid_range_start = vid;
fed0a159 Roopa Prabhu 2015-02-25 63 vid_range_end = vid;
fed0a159 Roopa Prabhu 2015-02-25 64 vid_range_flags = flags;
fed0a159 Roopa Prabhu 2015-02-25 65 }
fed0a159 Roopa Prabhu 2015-02-25 66
fed0a159 Roopa Prabhu 2015-02-25 67 if (vid_range_start != 0) {
fed0a159 Roopa Prabhu 2015-02-25 68 if ((vid_range_end - vid_range_start) > 0)
fed0a159 Roopa Prabhu 2015-02-25 69 num_vlans += 2;
fed0a159 Roopa Prabhu 2015-02-25 70 else
fed0a159 Roopa Prabhu 2015-02-25 71 num_vlans += 1;
fed0a159 Roopa Prabhu 2015-02-25 72 }
fed0a159 Roopa Prabhu 2015-02-25 73
fed0a159 Roopa Prabhu 2015-02-25 74 return num_vlans;
fed0a159 Roopa Prabhu 2015-02-25 75 }
fed0a159 Roopa Prabhu 2015-02-25 76
fed0a159 Roopa Prabhu 2015-02-25 77 static size_t br_get_link_af_size_filtered(const struct net_device *dev,
fed0a159 Roopa Prabhu 2015-02-25 78 u32 filter_mask)
b7853d73 Roopa Prabhu 2015-02-21 79 {
b7853d73 Roopa Prabhu 2015-02-21 80 struct net_port_vlans *pv;
fed0a159 Roopa Prabhu 2015-02-25 81 int num_vlan_infos;
b7853d73 Roopa Prabhu 2015-02-21 82
2f56f6be Johannes Berg 2015-03-03 83 rcu_read_lock();
b7853d73 Roopa Prabhu 2015-02-21 84 if (br_port_exists(dev))
2f56f6be Johannes Berg 2015-03-03 85 pv = nbp_get_vlan_info(br_port_get_rcu(dev));
b7853d73 Roopa Prabhu 2015-02-21 86 else if (dev->priv_flags & IFF_EBRIDGE)
b7853d73 Roopa Prabhu 2015-02-21 87 pv = br_get_vlan_info((struct net_bridge *)netdev_priv(dev));
b7853d73 Roopa Prabhu 2015-02-21 88 else
2f56f6be Johannes Berg 2015-03-03 89 pv = NULL;
2f56f6be Johannes Berg 2015-03-03 90 if (pv)
fed0a159 Roopa Prabhu 2015-02-25 91 num_vlan_infos = br_get_num_vlan_infos(pv, filter_mask);
2f56f6be Johannes Berg 2015-03-03 92 else
2f56f6be Johannes Berg 2015-03-03 93 num_vlan_infos = 0;
2f56f6be Johannes Berg 2015-03-03 94 rcu_read_unlock();
2f56f6be Johannes Berg 2015-03-03 95
fed0a159 Roopa Prabhu 2015-02-25 96 if (!num_vlan_infos)
fed0a159 Roopa Prabhu 2015-02-25 97 return 0;
fed0a159 Roopa Prabhu 2015-02-25 98
b7853d73 Roopa Prabhu 2015-02-21 99 /* Each VLAN is returned in bridge_vlan_info along with flags */
fed0a159 Roopa Prabhu 2015-02-25 100 return num_vlan_infos * nla_total_size(sizeof(struct bridge_vlan_info));
b7853d73 Roopa Prabhu 2015-02-21 101 }
b7853d73 Roopa Prabhu 2015-02-21 102
25c71c75 stephen hemminger 2012-11-13 103 static inline size_t br_port_info_size(void)
25c71c75 stephen hemminger 2012-11-13 104 {
25c71c75 stephen hemminger 2012-11-13 105 return nla_total_size(1) /* IFLA_BRPORT_STATE */
25c71c75 stephen hemminger 2012-11-13 106 + nla_total_size(2) /* IFLA_BRPORT_PRIORITY */
25c71c75 stephen hemminger 2012-11-13 107 + nla_total_size(4) /* IFLA_BRPORT_COST */
25c71c75 stephen hemminger 2012-11-13 108 + nla_total_size(1) /* IFLA_BRPORT_MODE */
a2e01a65 stephen hemminger 2012-11-13 109 + nla_total_size(1) /* IFLA_BRPORT_GUARD */
1007dd1a stephen hemminger 2012-11-13 110 + nla_total_size(1) /* IFLA_BRPORT_PROTECT */
3da889b6 stephen hemminger 2013-03-11 111 + nla_total_size(1) /* IFLA_BRPORT_FAST_LEAVE */
9ba18891 Vlad Yasevich 2013-06-05 112 + nla_total_size(1) /* IFLA_BRPORT_LEARNING */
867a5943 Vlad Yasevich 2013-06-05 113 + nla_total_size(1) /* IFLA_BRPORT_UNICAST_FLOOD */
355b9f9d Nikolay Aleksandrov 2015-08-04 114 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP */
786c2077 Nikolay Aleksandrov 2015-08-04 115 + nla_total_size(1) /* IFLA_BRPORT_PROXYARP_WIFI */
1706db4b Nikolay Aleksandrov 2015-10-06 116 + nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
25c71c75 stephen hemminger 2012-11-13 117 + 0;
25c71c75 stephen hemminger 2012-11-13 118 }
25c71c75 stephen hemminger 2012-11-13 119
fed0a159 Roopa Prabhu 2015-02-25 120 static inline size_t br_nlmsg_size(struct net_device *dev, u32 filter_mask)
339bf98f Thomas Graf 2006-11-10 121 {
339bf98f Thomas Graf 2006-11-10 122 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
339bf98f Thomas Graf 2006-11-10 123 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
339bf98f Thomas Graf 2006-11-10 124 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
339bf98f Thomas Graf 2006-11-10 125 + nla_total_size(4) /* IFLA_MASTER */
339bf98f Thomas Graf 2006-11-10 126 + nla_total_size(4) /* IFLA_MTU */
339bf98f Thomas Graf 2006-11-10 127 + nla_total_size(4) /* IFLA_LINK */
339bf98f Thomas Graf 2006-11-10 128 + nla_total_size(1) /* IFLA_OPERSTATE */
b7853d73 Roopa Prabhu 2015-02-21 129 + nla_total_size(br_port_info_size()) /* IFLA_PROTINFO */
fed0a159 Roopa Prabhu 2015-02-25 130 + nla_total_size(br_get_link_af_size_filtered(dev,
fed0a159 Roopa Prabhu 2015-02-25 131 filter_mask)); /* IFLA_AF_SPEC */
25c71c75 stephen hemminger 2012-11-13 132 }
25c71c75 stephen hemminger 2012-11-13 133
25c71c75 stephen hemminger 2012-11-13 134 static int br_port_fill_attrs(struct sk_buff *skb,
25c71c75 stephen hemminger 2012-11-13 135 const struct net_bridge_port *p)
25c71c75 stephen hemminger 2012-11-13 136 {
25c71c75 stephen hemminger 2012-11-13 137 u8 mode = !!(p->flags & BR_HAIRPIN_MODE);
25c71c75 stephen hemminger 2012-11-13 138
25c71c75 stephen hemminger 2012-11-13 @139 if (nla_put_u8(skb, IFLA_BRPORT_STATE, p->state) ||
25c71c75 stephen hemminger 2012-11-13 140 nla_put_u16(skb, IFLA_BRPORT_PRIORITY, p->priority) ||
25c71c75 stephen hemminger 2012-11-13 141 nla_put_u32(skb, IFLA_BRPORT_COST, p->path_cost) ||
a2e01a65 stephen hemminger 2012-11-13 142 nla_put_u8(skb, IFLA_BRPORT_MODE, mode) ||
:::::: The code at line 139 was first introduced by commit
:::::: 25c71c75ac87508528db053b818944f3650dd7a6 bridge: bridge port parameters over netlink
:::::: TO: stephen hemminger <shemminger@...tta.com>
:::::: CC: David S. Miller <davem@...emloft.net>
---
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