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Date: Sun, 17 Dec 2017 03:06:53 +0800
From: kbuild test robot <lkp@...el.com>
To: Alexander Aring <aring@...atatu.com>
Cc: kbuild-all@...org, jhs@...atatu.com, xiyou.wangcong@...il.com,
jiri@...nulli.us, davem@...emloft.net, netdev@...r.kernel.org,
kernel@...atatu.com, Alexander Aring <aring@...atatu.com>,
David Ahern <dsahern@...il.com>
Subject: Re: [PATCHv2 net-next 12/15] net: sch: api: add extack support in
qdisc_create_dflt
Hi Alexander,
I love your patch! Yet something to improve:
[auto build test ERROR on net-next/master]
url: https://github.com/0day-ci/linux/commits/Alexander-Aring/net-sched-sch-introduce-extack-support/20171217-015839
config: x86_64-randconfig-x003-201751 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
net/sched/sch_atm.c: In function 'atm_tc_change':
net/sched/sch_atm.c:285:10: error: too few arguments to function 'tcf_block_get'
error = tcf_block_get(&flow->block, &flow->filter_list, sch);
^~~~~~~~~~~~~
In file included from net/sched/sch_atm.c:18:0:
include/net/pkt_cls.h:41:5: note: declared here
int tcf_block_get(struct tcf_block **p_block,
^~~~~~~~~~~~~
>> net/sched/sch_atm.c:291:12: error: too few arguments to function 'qdisc_create_dflt'
flow->q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops, classid);
^~~~~~~~~~~~~~~~~
In file included from include/linux/filter.h:22:0,
from include/net/sock.h:64,
from include/linux/atmdev.h:13,
from net/sched/sch_atm.c:12:
include/net/sch_generic.h:475:15: note: declared here
struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
^~~~~~~~~~~~~~~~~
net/sched/sch_atm.c: In function 'atm_tc_init':
net/sched/sch_atm.c:544:14: error: too few arguments to function 'qdisc_create_dflt'
p->link.q = qdisc_create_dflt(sch->dev_queue,
^~~~~~~~~~~~~~~~~
In file included from include/linux/filter.h:22:0,
from include/net/sock.h:64,
from include/linux/atmdev.h:13,
from net/sched/sch_atm.c:12:
include/net/sch_generic.h:475:15: note: declared here
struct Qdisc *qdisc_create_dflt(struct netdev_queue *dev_queue,
^~~~~~~~~~~~~~~~~
net/sched/sch_atm.c:550:8: error: too few arguments to function 'tcf_block_get'
err = tcf_block_get(&p->link.block, &p->link.filter_list, sch);
^~~~~~~~~~~~~
In file included from net/sched/sch_atm.c:18:0:
include/net/pkt_cls.h:41:5: note: declared here
int tcf_block_get(struct tcf_block **p_block,
^~~~~~~~~~~~~
net/sched/sch_atm.c: At top level:
net/sched/sch_atm.c:660:12: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.graft = atm_tc_graft,
^~~~~~~~~~~~
net/sched/sch_atm.c:660:12: note: (near initialization for 'atm_class_ops.graft')
net/sched/sch_atm.c:666:15: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.tcf_block = atm_tc_tcf_block,
^~~~~~~~~~~~~~~~
net/sched/sch_atm.c:666:15: note: (near initialization for 'atm_class_ops.tcf_block')
net/sched/sch_atm.c:680:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.init = atm_tc_init,
^~~~~~~~~~~
net/sched/sch_atm.c:680:11: note: (near initialization for 'atm_qdisc_ops.init')
cc1: some warnings being treated as errors
vim +/qdisc_create_dflt +291 net/sched/sch_atm.c
27a3421e4 Patrick McHardy 2008-01-23 192
^1da177e4 Linus Torvalds 2005-04-16 193 static int atm_tc_change(struct Qdisc *sch, u32 classid, u32 parent,
7eb3baddc Alexander Aring 2017-12-14 194 struct nlattr **tca, unsigned long *arg,
7eb3baddc Alexander Aring 2017-12-14 195 struct netlink_ext_ack *extack)
^1da177e4 Linus Torvalds 2005-04-16 196 {
786a90366 Stephen Hemminger 2008-01-21 197 struct atm_qdisc_data *p = qdisc_priv(sch);
^1da177e4 Linus Torvalds 2005-04-16 198 struct atm_flow_data *flow = (struct atm_flow_data *)*arg;
^1da177e4 Linus Torvalds 2005-04-16 199 struct atm_flow_data *excess = NULL;
1e90474c3 Patrick McHardy 2008-01-22 200 struct nlattr *opt = tca[TCA_OPTIONS];
1e90474c3 Patrick McHardy 2008-01-22 201 struct nlattr *tb[TCA_ATM_MAX + 1];
^1da177e4 Linus Torvalds 2005-04-16 202 struct socket *sock;
^1da177e4 Linus Torvalds 2005-04-16 203 int fd, error, hdr_len;
^1da177e4 Linus Torvalds 2005-04-16 204 void *hdr;
^1da177e4 Linus Torvalds 2005-04-16 205
786a90366 Stephen Hemminger 2008-01-21 206 pr_debug("atm_tc_change(sch %p,[qdisc %p],classid %x,parent %x,"
^1da177e4 Linus Torvalds 2005-04-16 207 "flow %p,opt %p)\n", sch, p, classid, parent, flow, opt);
^1da177e4 Linus Torvalds 2005-04-16 208 /*
^1da177e4 Linus Torvalds 2005-04-16 209 * The concept of parents doesn't apply for this qdisc.
^1da177e4 Linus Torvalds 2005-04-16 210 */
^1da177e4 Linus Torvalds 2005-04-16 211 if (parent && parent != TC_H_ROOT && parent != sch->handle)
^1da177e4 Linus Torvalds 2005-04-16 212 return -EINVAL;
^1da177e4 Linus Torvalds 2005-04-16 213 /*
^1da177e4 Linus Torvalds 2005-04-16 214 * ATM classes cannot be changed. In order to change properties of the
^1da177e4 Linus Torvalds 2005-04-16 215 * ATM connection, that socket needs to be modified directly (via the
^1da177e4 Linus Torvalds 2005-04-16 216 * native ATM API. In order to send a flow to a different VC, the old
^1da177e4 Linus Torvalds 2005-04-16 217 * class needs to be removed and a new one added. (This may be changed
^1da177e4 Linus Torvalds 2005-04-16 218 * later.)
^1da177e4 Linus Torvalds 2005-04-16 219 */
b0188d4db Patrick McHardy 2007-07-15 220 if (flow)
b0188d4db Patrick McHardy 2007-07-15 221 return -EBUSY;
cee63723b Patrick McHardy 2008-01-23 222 if (opt == NULL)
^1da177e4 Linus Torvalds 2005-04-16 223 return -EINVAL;
27a3421e4 Patrick McHardy 2008-01-23 224
fceb6435e Johannes Berg 2017-04-12 225 error = nla_parse_nested(tb, TCA_ATM_MAX, opt, atm_policy, NULL);
cee63723b Patrick McHardy 2008-01-23 226 if (error < 0)
cee63723b Patrick McHardy 2008-01-23 227 return error;
cee63723b Patrick McHardy 2008-01-23 228
27a3421e4 Patrick McHardy 2008-01-23 229 if (!tb[TCA_ATM_FD])
^1da177e4 Linus Torvalds 2005-04-16 230 return -EINVAL;
1587bac49 Patrick McHardy 2008-01-23 231 fd = nla_get_u32(tb[TCA_ATM_FD]);
786a90366 Stephen Hemminger 2008-01-21 232 pr_debug("atm_tc_change: fd %d\n", fd);
1e90474c3 Patrick McHardy 2008-01-22 233 if (tb[TCA_ATM_HDR]) {
1e90474c3 Patrick McHardy 2008-01-22 234 hdr_len = nla_len(tb[TCA_ATM_HDR]);
1e90474c3 Patrick McHardy 2008-01-22 235 hdr = nla_data(tb[TCA_ATM_HDR]);
b0188d4db Patrick McHardy 2007-07-15 236 } else {
^1da177e4 Linus Torvalds 2005-04-16 237 hdr_len = RFC1483LLC_LEN;
^1da177e4 Linus Torvalds 2005-04-16 238 hdr = NULL; /* default LLC/SNAP for IP */
^1da177e4 Linus Torvalds 2005-04-16 239 }
1e90474c3 Patrick McHardy 2008-01-22 240 if (!tb[TCA_ATM_EXCESS])
b0188d4db Patrick McHardy 2007-07-15 241 excess = NULL;
^1da177e4 Linus Torvalds 2005-04-16 242 else {
b0188d4db Patrick McHardy 2007-07-15 243 excess = (struct atm_flow_data *)
143976ce9 WANG Cong 2017-08-24 244 atm_tc_find(sch, nla_get_u32(tb[TCA_ATM_EXCESS]));
b0188d4db Patrick McHardy 2007-07-15 245 if (!excess)
b0188d4db Patrick McHardy 2007-07-15 246 return -ENOENT;
^1da177e4 Linus Torvalds 2005-04-16 247 }
f5e5cb755 Patrick McHardy 2008-01-23 248 pr_debug("atm_tc_change: type %d, payload %d, hdr_len %d\n",
1e90474c3 Patrick McHardy 2008-01-22 249 opt->nla_type, nla_len(opt), hdr_len);
786a90366 Stephen Hemminger 2008-01-21 250 sock = sockfd_lookup(fd, &error);
786a90366 Stephen Hemminger 2008-01-21 251 if (!sock)
b0188d4db Patrick McHardy 2007-07-15 252 return error; /* f_count++ */
516e0cc56 Al Viro 2008-07-26 253 pr_debug("atm_tc_change: f_count %ld\n", file_count(sock->file));
^1da177e4 Linus Torvalds 2005-04-16 254 if (sock->ops->family != PF_ATMSVC && sock->ops->family != PF_ATMPVC) {
^1da177e4 Linus Torvalds 2005-04-16 255 error = -EPROTOTYPE;
^1da177e4 Linus Torvalds 2005-04-16 256 goto err_out;
^1da177e4 Linus Torvalds 2005-04-16 257 }
^1da177e4 Linus Torvalds 2005-04-16 258 /* @@@ should check if the socket is really operational or we'll crash
^1da177e4 Linus Torvalds 2005-04-16 259 on vcc->send */
^1da177e4 Linus Torvalds 2005-04-16 260 if (classid) {
^1da177e4 Linus Torvalds 2005-04-16 261 if (TC_H_MAJ(classid ^ sch->handle)) {
786a90366 Stephen Hemminger 2008-01-21 262 pr_debug("atm_tc_change: classid mismatch\n");
^1da177e4 Linus Torvalds 2005-04-16 263 error = -EINVAL;
^1da177e4 Linus Torvalds 2005-04-16 264 goto err_out;
^1da177e4 Linus Torvalds 2005-04-16 265 }
b0188d4db Patrick McHardy 2007-07-15 266 } else {
^1da177e4 Linus Torvalds 2005-04-16 267 int i;
^1da177e4 Linus Torvalds 2005-04-16 268 unsigned long cl;
^1da177e4 Linus Torvalds 2005-04-16 269
^1da177e4 Linus Torvalds 2005-04-16 270 for (i = 1; i < 0x8000; i++) {
^1da177e4 Linus Torvalds 2005-04-16 271 classid = TC_H_MAKE(sch->handle, 0x8000 | i);
143976ce9 WANG Cong 2017-08-24 272 cl = atm_tc_find(sch, classid);
786a90366 Stephen Hemminger 2008-01-21 273 if (!cl)
b0188d4db Patrick McHardy 2007-07-15 274 break;
^1da177e4 Linus Torvalds 2005-04-16 275 }
^1da177e4 Linus Torvalds 2005-04-16 276 }
786a90366 Stephen Hemminger 2008-01-21 277 pr_debug("atm_tc_change: new id %x\n", classid);
782f79568 vignesh babu 2007-07-16 278 flow = kzalloc(sizeof(struct atm_flow_data) + hdr_len, GFP_KERNEL);
786a90366 Stephen Hemminger 2008-01-21 279 pr_debug("atm_tc_change: flow %p\n", flow);
^1da177e4 Linus Torvalds 2005-04-16 280 if (!flow) {
^1da177e4 Linus Torvalds 2005-04-16 281 error = -ENOBUFS;
^1da177e4 Linus Torvalds 2005-04-16 282 goto err_out;
^1da177e4 Linus Torvalds 2005-04-16 283 }
6529eaba3 Jiri Pirko 2017-05-17 284
69d78ef25 Jiri Pirko 2017-10-13 @285 error = tcf_block_get(&flow->block, &flow->filter_list, sch);
6529eaba3 Jiri Pirko 2017-05-17 286 if (error) {
6529eaba3 Jiri Pirko 2017-05-17 287 kfree(flow);
6529eaba3 Jiri Pirko 2017-05-17 288 goto err_out;
6529eaba3 Jiri Pirko 2017-05-17 289 }
6529eaba3 Jiri Pirko 2017-05-17 290
3511c9132 Changli Gao 2010-10-16 @291 flow->q = qdisc_create_dflt(sch->dev_queue, &pfifo_qdisc_ops, classid);
786a90366 Stephen Hemminger 2008-01-21 292 if (!flow->q)
^1da177e4 Linus Torvalds 2005-04-16 293 flow->q = &noop_qdisc;
786a90366 Stephen Hemminger 2008-01-21 294 pr_debug("atm_tc_change: qdisc %p\n", flow->q);
^1da177e4 Linus Torvalds 2005-04-16 295 flow->sock = sock;
^1da177e4 Linus Torvalds 2005-04-16 296 flow->vcc = ATM_SD(sock); /* speedup */
^1da177e4 Linus Torvalds 2005-04-16 297 flow->vcc->user_back = flow;
786a90366 Stephen Hemminger 2008-01-21 298 pr_debug("atm_tc_change: vcc %p\n", flow->vcc);
^1da177e4 Linus Torvalds 2005-04-16 299 flow->old_pop = flow->vcc->pop;
^1da177e4 Linus Torvalds 2005-04-16 300 flow->parent = p;
^1da177e4 Linus Torvalds 2005-04-16 301 flow->vcc->pop = sch_atm_pop;
f7ebdff75 Jiri Pirko 2017-08-04 302 flow->common.classid = classid;
^1da177e4 Linus Torvalds 2005-04-16 303 flow->ref = 1;
^1da177e4 Linus Torvalds 2005-04-16 304 flow->excess = excess;
6accec76f David S. Miller 2010-07-18 305 list_add(&flow->list, &p->link.list);
^1da177e4 Linus Torvalds 2005-04-16 306 flow->hdr_len = hdr_len;
^1da177e4 Linus Torvalds 2005-04-16 307 if (hdr)
^1da177e4 Linus Torvalds 2005-04-16 308 memcpy(flow->hdr, hdr, hdr_len);
^1da177e4 Linus Torvalds 2005-04-16 309 else
^1da177e4 Linus Torvalds 2005-04-16 310 memcpy(flow->hdr, llc_oui_ip, sizeof(llc_oui_ip));
^1da177e4 Linus Torvalds 2005-04-16 311 *arg = (unsigned long)flow;
^1da177e4 Linus Torvalds 2005-04-16 312 return 0;
^1da177e4 Linus Torvalds 2005-04-16 313 err_out:
^1da177e4 Linus Torvalds 2005-04-16 314 sockfd_put(sock);
^1da177e4 Linus Torvalds 2005-04-16 315 return error;
^1da177e4 Linus Torvalds 2005-04-16 316 }
^1da177e4 Linus Torvalds 2005-04-16 317
:::::: The code at line 291 was first introduced by commit
:::::: 3511c9132f8b1e1b5634e41a3331c44b0c13be70 net_sched: remove the unused parameter of qdisc_create_dflt()
:::::: TO: Changli Gao <xiaosuo@...il.com>
:::::: CC: David S. Miller <davem@...emloft.net>
---
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