* Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd)
@ 2018-06-16 16:04 Julia Lawall
2018-06-17 6:35 ` jackm
0 siblings, 1 reply; 3+ messages in thread
From: Julia Lawall @ 2018-06-16 16:04 UTC (permalink / raw)
To: Hans Westgaard Ry
Cc: Doug Ledford, Jason Gunthorpe, Hakon Bugge, Parav Pandit,
Jack Morgenstein, Pravin Shedge, Matthew Wilcox, Andrew Morton,
Jeff Layton, Wei Wang, Chris Mi, Eric Biggers, Rasmus Villemoes,
Mel Gorman, linux-rdma, linux-kernel, kbuild-all
ib_mad_client_id is declared as u32, so it will not be < 0 (line 382).
julia
---------- Forwarded message ----------
Date: Fri, 8 Jun 2018 08:49:57 +0800
From: kbuild test robot <lkp@intel.com>
To: kbuild@01.org
Cc: Julia Lawall <julia.lawall@lip6.fr>
Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent
number
Hi Hans,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v4.17]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Hans-Westgaard-Ry/IB-mad-Use-ID-allocator-routines-to-allocate-agent-number/20180608-022348
:::::: branch date: 6 hours ago
:::::: commit date: 6 hours ago
>> drivers/infiniband/core/mad.c:382:5-21: WARNING: Unsigned expression compared with zero: ib_mad_client_id < 0
# https://github.com/0day-ci/linux/commit/74b1ba09003c9d132878734bf44f32a62bad31db
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout 74b1ba09003c9d132878734bf44f32a62bad31db
vim +382 drivers/infiniband/core/mad.c
2527e681 Sean Hefty 2006-07-20 190
^1da177e Linus Torvalds 2005-04-16 191 /*
^1da177e Linus Torvalds 2005-04-16 192 * ib_register_mad_agent - Register to send/receive MADs
^1da177e Linus Torvalds 2005-04-16 193 */
^1da177e Linus Torvalds 2005-04-16 194 struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
^1da177e Linus Torvalds 2005-04-16 195 u8 port_num,
^1da177e Linus Torvalds 2005-04-16 196 enum ib_qp_type qp_type,
^1da177e Linus Torvalds 2005-04-16 197 struct ib_mad_reg_req *mad_reg_req,
^1da177e Linus Torvalds 2005-04-16 198 u8 rmpp_version,
^1da177e Linus Torvalds 2005-04-16 199 ib_mad_send_handler send_handler,
^1da177e Linus Torvalds 2005-04-16 200 ib_mad_recv_handler recv_handler,
0f29b46d Ira Weiny 2014-08-08 201 void *context,
0f29b46d Ira Weiny 2014-08-08 202 u32 registration_flags)
^1da177e Linus Torvalds 2005-04-16 203 {
^1da177e Linus Torvalds 2005-04-16 204 struct ib_mad_port_private *port_priv;
^1da177e Linus Torvalds 2005-04-16 205 struct ib_mad_agent *ret = ERR_PTR(-EINVAL);
^1da177e Linus Torvalds 2005-04-16 206 struct ib_mad_agent_private *mad_agent_priv;
^1da177e Linus Torvalds 2005-04-16 207 struct ib_mad_reg_req *reg_req = NULL;
^1da177e Linus Torvalds 2005-04-16 208 struct ib_mad_mgmt_class_table *class;
^1da177e Linus Torvalds 2005-04-16 209 struct ib_mad_mgmt_vendor_class_table *vendor;
^1da177e Linus Torvalds 2005-04-16 210 struct ib_mad_mgmt_vendor_class *vendor_class;
^1da177e Linus Torvalds 2005-04-16 211 struct ib_mad_mgmt_method_table *method;
^1da177e Linus Torvalds 2005-04-16 212 int ret2, qpn;
^1da177e Linus Torvalds 2005-04-16 213 unsigned long flags;
^1da177e Linus Torvalds 2005-04-16 214 u8 mgmt_class, vclass;
74b1ba09 Hans Westgaard Ry 2018-06-07 215 u32 ib_mad_client_id;
^1da177e Linus Torvalds 2005-04-16 216 /* Validate parameters */
^1da177e Linus Torvalds 2005-04-16 217 qpn = get_spl_qp_index(qp_type);
9ad13a42 Ira Weiny 2014-08-08 218 if (qpn == -1) {
9ad13a42 Ira Weiny 2014-08-08 219 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 220 "ib_register_mad_agent: invalid QP Type %d\n",
9ad13a42 Ira Weiny 2014-08-08 221 qp_type);
^1da177e Linus Torvalds 2005-04-16 222 goto error1;
9ad13a42 Ira Weiny 2014-08-08 223 }
^1da177e Linus Torvalds 2005-04-16 224
9ad13a42 Ira Weiny 2014-08-08 225 if (rmpp_version && rmpp_version != IB_MGMT_RMPP_VERSION) {
9ad13a42 Ira Weiny 2014-08-08 226 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 227 "ib_register_mad_agent: invalid RMPP Version %u\n",
9ad13a42 Ira Weiny 2014-08-08 228 rmpp_version);
fa619a77 Hal Rosenstock 2005-07-27 229 goto error1;
9ad13a42 Ira Weiny 2014-08-08 230 }
^1da177e Linus Torvalds 2005-04-16 231
^1da177e Linus Torvalds 2005-04-16 232 /* Validate MAD registration request if supplied */
^1da177e Linus Torvalds 2005-04-16 233 if (mad_reg_req) {
9ad13a42 Ira Weiny 2014-08-08 234 if (mad_reg_req->mgmt_class_version >= MAX_MGMT_VERSION) {
9ad13a42 Ira Weiny 2014-08-08 235 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 236 "ib_register_mad_agent: invalid Class Version %u\n",
9ad13a42 Ira Weiny 2014-08-08 237 mad_reg_req->mgmt_class_version);
^1da177e Linus Torvalds 2005-04-16 238 goto error1;
9ad13a42 Ira Weiny 2014-08-08 239 }
9ad13a42 Ira Weiny 2014-08-08 240 if (!recv_handler) {
9ad13a42 Ira Weiny 2014-08-08 241 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 242 "ib_register_mad_agent: no recv_handler\n");
^1da177e Linus Torvalds 2005-04-16 243 goto error1;
9ad13a42 Ira Weiny 2014-08-08 244 }
^1da177e Linus Torvalds 2005-04-16 245 if (mad_reg_req->mgmt_class >= MAX_MGMT_CLASS) {
^1da177e Linus Torvalds 2005-04-16 246 /*
^1da177e Linus Torvalds 2005-04-16 247 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE is the only
^1da177e Linus Torvalds 2005-04-16 248 * one in this range currently allowed
^1da177e Linus Torvalds 2005-04-16 249 */
^1da177e Linus Torvalds 2005-04-16 250 if (mad_reg_req->mgmt_class !=
9ad13a42 Ira Weiny 2014-08-08 251 IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
9ad13a42 Ira Weiny 2014-08-08 252 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 253 "ib_register_mad_agent: Invalid Mgmt Class 0x%x\n",
9ad13a42 Ira Weiny 2014-08-08 254 mad_reg_req->mgmt_class);
^1da177e Linus Torvalds 2005-04-16 255 goto error1;
9ad13a42 Ira Weiny 2014-08-08 256 }
^1da177e Linus Torvalds 2005-04-16 257 } else if (mad_reg_req->mgmt_class == 0) {
^1da177e Linus Torvalds 2005-04-16 258 /*
^1da177e Linus Torvalds 2005-04-16 259 * Class 0 is reserved in IBA and is used for
^1da177e Linus Torvalds 2005-04-16 260 * aliasing of IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE
^1da177e Linus Torvalds 2005-04-16 261 */
9ad13a42 Ira Weiny 2014-08-08 262 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 263 "ib_register_mad_agent: Invalid Mgmt Class 0\n");
^1da177e Linus Torvalds 2005-04-16 264 goto error1;
^1da177e Linus Torvalds 2005-04-16 265 } else if (is_vendor_class(mad_reg_req->mgmt_class)) {
^1da177e Linus Torvalds 2005-04-16 266 /*
^1da177e Linus Torvalds 2005-04-16 267 * If class is in "new" vendor range,
^1da177e Linus Torvalds 2005-04-16 268 * ensure supplied OUI is not zero
^1da177e Linus Torvalds 2005-04-16 269 */
9ad13a42 Ira Weiny 2014-08-08 270 if (!is_vendor_oui(mad_reg_req->oui)) {
9ad13a42 Ira Weiny 2014-08-08 271 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 272 "ib_register_mad_agent: No OUI specified for class 0x%x\n",
9ad13a42 Ira Weiny 2014-08-08 273 mad_reg_req->mgmt_class);
^1da177e Linus Torvalds 2005-04-16 274 goto error1;
^1da177e Linus Torvalds 2005-04-16 275 }
9ad13a42 Ira Weiny 2014-08-08 276 }
618a3c03 Hal Rosenstock 2006-03-28 277 /* Make sure class supplied is consistent with RMPP */
64cb9c6a Hal Rosenstock 2006-04-12 278 if (!ib_is_mad_class_rmpp(mad_reg_req->mgmt_class)) {
9ad13a42 Ira Weiny 2014-08-08 279 if (rmpp_version) {
9ad13a42 Ira Weiny 2014-08-08 280 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 281 "ib_register_mad_agent: RMPP version for non-RMPP class 0x%x\n",
9ad13a42 Ira Weiny 2014-08-08 282 mad_reg_req->mgmt_class);
618a3c03 Hal Rosenstock 2006-03-28 283 goto error1;
618a3c03 Hal Rosenstock 2006-03-28 284 }
9ad13a42 Ira Weiny 2014-08-08 285 }
1471cb6c Ira Weiny 2014-08-08 286
^1da177e Linus Torvalds 2005-04-16 287 /* Make sure class supplied is consistent with QP type */
^1da177e Linus Torvalds 2005-04-16 288 if (qp_type == IB_QPT_SMI) {
^1da177e Linus Torvalds 2005-04-16 289 if ((mad_reg_req->mgmt_class !=
^1da177e Linus Torvalds 2005-04-16 290 IB_MGMT_CLASS_SUBN_LID_ROUTED) &&
^1da177e Linus Torvalds 2005-04-16 291 (mad_reg_req->mgmt_class !=
9ad13a42 Ira Weiny 2014-08-08 292 IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) {
9ad13a42 Ira Weiny 2014-08-08 293 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 294 "ib_register_mad_agent: Invalid SM QP type: class 0x%x\n",
9ad13a42 Ira Weiny 2014-08-08 295 mad_reg_req->mgmt_class);
^1da177e Linus Torvalds 2005-04-16 296 goto error1;
9ad13a42 Ira Weiny 2014-08-08 297 }
^1da177e Linus Torvalds 2005-04-16 298 } else {
^1da177e Linus Torvalds 2005-04-16 299 if ((mad_reg_req->mgmt_class ==
^1da177e Linus Torvalds 2005-04-16 300 IB_MGMT_CLASS_SUBN_LID_ROUTED) ||
^1da177e Linus Torvalds 2005-04-16 301 (mad_reg_req->mgmt_class ==
9ad13a42 Ira Weiny 2014-08-08 302 IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) {
9ad13a42 Ira Weiny 2014-08-08 303 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 304 "ib_register_mad_agent: Invalid GS QP type: class 0x%x\n",
9ad13a42 Ira Weiny 2014-08-08 305 mad_reg_req->mgmt_class);
^1da177e Linus Torvalds 2005-04-16 306 goto error1;
^1da177e Linus Torvalds 2005-04-16 307 }
9ad13a42 Ira Weiny 2014-08-08 308 }
^1da177e Linus Torvalds 2005-04-16 309 } else {
^1da177e Linus Torvalds 2005-04-16 310 /* No registration request supplied */
^1da177e Linus Torvalds 2005-04-16 311 if (!send_handler)
^1da177e Linus Torvalds 2005-04-16 312 goto error1;
1471cb6c Ira Weiny 2014-08-08 313 if (registration_flags & IB_MAD_USER_RMPP)
1471cb6c Ira Weiny 2014-08-08 314 goto error1;
^1da177e Linus Torvalds 2005-04-16 315 }
^1da177e Linus Torvalds 2005-04-16 316
^1da177e Linus Torvalds 2005-04-16 317 /* Validate device and port */
^1da177e Linus Torvalds 2005-04-16 318 port_priv = ib_get_mad_port(device, port_num);
^1da177e Linus Torvalds 2005-04-16 319 if (!port_priv) {
f57e8ca5 Yuval Shaia 2017-01-19 320 dev_notice(&device->dev,
f57e8ca5 Yuval Shaia 2017-01-19 321 "ib_register_mad_agent: Invalid port %d\n",
f57e8ca5 Yuval Shaia 2017-01-19 322 port_num);
^1da177e Linus Torvalds 2005-04-16 323 ret = ERR_PTR(-ENODEV);
^1da177e Linus Torvalds 2005-04-16 324 goto error1;
^1da177e Linus Torvalds 2005-04-16 325 }
^1da177e Linus Torvalds 2005-04-16 326
c8367c4c Ira Weiny 2011-05-19 327 /* Verify the QP requested is supported. For example, Ethernet devices
c8367c4c Ira Weiny 2011-05-19 328 * will not have QP0 */
c8367c4c Ira Weiny 2011-05-19 329 if (!port_priv->qp_info[qpn].qp) {
9ad13a42 Ira Weiny 2014-08-08 330 dev_notice(&device->dev,
9ad13a42 Ira Weiny 2014-08-08 331 "ib_register_mad_agent: QP %d not supported\n", qpn);
c8367c4c Ira Weiny 2011-05-19 332 ret = ERR_PTR(-EPROTONOSUPPORT);
c8367c4c Ira Weiny 2011-05-19 333 goto error1;
c8367c4c Ira Weiny 2011-05-19 334 }
c8367c4c Ira Weiny 2011-05-19 335
^1da177e Linus Torvalds 2005-04-16 336 /* Allocate structures */
de6eb66b Roland Dreier 2005-11-02 337 mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
^1da177e Linus Torvalds 2005-04-16 338 if (!mad_agent_priv) {
^1da177e Linus Torvalds 2005-04-16 339 ret = ERR_PTR(-ENOMEM);
^1da177e Linus Torvalds 2005-04-16 340 goto error1;
^1da177e Linus Torvalds 2005-04-16 341 }
b82cab6b Hal Rosenstock 2005-07-27 342
^1da177e Linus Torvalds 2005-04-16 343 if (mad_reg_req) {
9893e742 Julia Lawall 2010-05-15 344 reg_req = kmemdup(mad_reg_req, sizeof *reg_req, GFP_KERNEL);
^1da177e Linus Torvalds 2005-04-16 345 if (!reg_req) {
^1da177e Linus Torvalds 2005-04-16 346 ret = ERR_PTR(-ENOMEM);
b82cab6b Hal Rosenstock 2005-07-27 347 goto error3;
^1da177e Linus Torvalds 2005-04-16 348 }
^1da177e Linus Torvalds 2005-04-16 349 }
^1da177e Linus Torvalds 2005-04-16 350
^1da177e Linus Torvalds 2005-04-16 351 /* Now, fill in the various structures */
^1da177e Linus Torvalds 2005-04-16 352 mad_agent_priv->qp_info = &port_priv->qp_info[qpn];
^1da177e Linus Torvalds 2005-04-16 353 mad_agent_priv->reg_req = reg_req;
fa619a77 Hal Rosenstock 2005-07-27 354 mad_agent_priv->agent.rmpp_version = rmpp_version;
^1da177e Linus Torvalds 2005-04-16 355 mad_agent_priv->agent.device = device;
^1da177e Linus Torvalds 2005-04-16 356 mad_agent_priv->agent.recv_handler = recv_handler;
^1da177e Linus Torvalds 2005-04-16 357 mad_agent_priv->agent.send_handler = send_handler;
^1da177e Linus Torvalds 2005-04-16 358 mad_agent_priv->agent.context = context;
^1da177e Linus Torvalds 2005-04-16 359 mad_agent_priv->agent.qp = port_priv->qp_info[qpn].qp;
^1da177e Linus Torvalds 2005-04-16 360 mad_agent_priv->agent.port_num = port_num;
0f29b46d Ira Weiny 2014-08-08 361 mad_agent_priv->agent.flags = registration_flags;
d9620a4c Ralph Campbell 2009-02-27 362 spin_lock_init(&mad_agent_priv->lock);
d9620a4c Ralph Campbell 2009-02-27 363 INIT_LIST_HEAD(&mad_agent_priv->send_list);
d9620a4c Ralph Campbell 2009-02-27 364 INIT_LIST_HEAD(&mad_agent_priv->wait_list);
d9620a4c Ralph Campbell 2009-02-27 365 INIT_LIST_HEAD(&mad_agent_priv->done_list);
d9620a4c Ralph Campbell 2009-02-27 366 INIT_LIST_HEAD(&mad_agent_priv->rmpp_list);
d9620a4c Ralph Campbell 2009-02-27 367 INIT_DELAYED_WORK(&mad_agent_priv->timed_work, timeout_sends);
d9620a4c Ralph Campbell 2009-02-27 368 INIT_LIST_HEAD(&mad_agent_priv->local_list);
d9620a4c Ralph Campbell 2009-02-27 369 INIT_WORK(&mad_agent_priv->local_work, local_completions);
d9620a4c Ralph Campbell 2009-02-27 370 atomic_set(&mad_agent_priv->refcount, 1);
d9620a4c Ralph Campbell 2009-02-27 371 init_completion(&mad_agent_priv->comp);
^1da177e Linus Torvalds 2005-04-16 372
47a2b338 Daniel Jurgens 2017-05-19 373 ret2 = ib_mad_agent_security_setup(&mad_agent_priv->agent, qp_type);
47a2b338 Daniel Jurgens 2017-05-19 374 if (ret2) {
47a2b338 Daniel Jurgens 2017-05-19 375 ret = ERR_PTR(ret2);
47a2b338 Daniel Jurgens 2017-05-19 376 goto error4;
47a2b338 Daniel Jurgens 2017-05-19 377 }
74b1ba09 Hans Westgaard Ry 2018-06-07 378 ib_mad_client_id = ida_simple_get_cyclic(&ib_mad_client_ids,
74b1ba09 Hans Westgaard Ry 2018-06-07 379 1,
74b1ba09 Hans Westgaard Ry 2018-06-07 380 BIT(24) - 1,
74b1ba09 Hans Westgaard Ry 2018-06-07 381 GFP_KERNEL);
74b1ba09 Hans Westgaard Ry 2018-06-07 @382 if (ib_mad_client_id < 0) {
74b1ba09 Hans Westgaard Ry 2018-06-07 383 pr_err("Couldn't allocate agent tid; errcode: %#x\n",
74b1ba09 Hans Westgaard Ry 2018-06-07 384 ib_mad_client_id);
74b1ba09 Hans Westgaard Ry 2018-06-07 385 ret = ERR_PTR(ib_mad_client_id);
74b1ba09 Hans Westgaard Ry 2018-06-07 386 goto error4;
74b1ba09 Hans Westgaard Ry 2018-06-07 387 }
74b1ba09 Hans Westgaard Ry 2018-06-07 388 mad_agent_priv->agent.hi_tid = ib_mad_client_id;
47a2b338 Daniel Jurgens 2017-05-19 389
^1da177e Linus Torvalds 2005-04-16 390 spin_lock_irqsave(&port_priv->reg_lock, flags);
^1da177e Linus Torvalds 2005-04-16 391
^1da177e Linus Torvalds 2005-04-16 392 /*
^1da177e Linus Torvalds 2005-04-16 393 * Make sure MAD registration (if supplied)
^1da177e Linus Torvalds 2005-04-16 394 * is non overlapping with any existing ones
^1da177e Linus Torvalds 2005-04-16 395 */
^1da177e Linus Torvalds 2005-04-16 396 if (mad_reg_req) {
^1da177e Linus Torvalds 2005-04-16 397 mgmt_class = convert_mgmt_class(mad_reg_req->mgmt_class);
^1da177e Linus Torvalds 2005-04-16 398 if (!is_vendor_class(mgmt_class)) {
^1da177e Linus Torvalds 2005-04-16 399 class = port_priv->version[mad_reg_req->
^1da177e Linus Torvalds 2005-04-16 400 mgmt_class_version].class;
^1da177e Linus Torvalds 2005-04-16 401 if (class) {
^1da177e Linus Torvalds 2005-04-16 402 method = class->method_table[mgmt_class];
^1da177e Linus Torvalds 2005-04-16 403 if (method) {
^1da177e Linus Torvalds 2005-04-16 404 if (method_in_use(&method,
^1da177e Linus Torvalds 2005-04-16 405 mad_reg_req))
47a2b338 Daniel Jurgens 2017-05-19 406 goto error5;
^1da177e Linus Torvalds 2005-04-16 407 }
^1da177e Linus Torvalds 2005-04-16 408 }
^1da177e Linus Torvalds 2005-04-16 409 ret2 = add_nonoui_reg_req(mad_reg_req, mad_agent_priv,
^1da177e Linus Torvalds 2005-04-16 410 mgmt_class);
^1da177e Linus Torvalds 2005-04-16 411 } else {
^1da177e Linus Torvalds 2005-04-16 412 /* "New" vendor class range */
^1da177e Linus Torvalds 2005-04-16 413 vendor = port_priv->version[mad_reg_req->
^1da177e Linus Torvalds 2005-04-16 414 mgmt_class_version].vendor;
^1da177e Linus Torvalds 2005-04-16 415 if (vendor) {
^1da177e Linus Torvalds 2005-04-16 416 vclass = vendor_class_index(mgmt_class);
^1da177e Linus Torvalds 2005-04-16 417 vendor_class = vendor->vendor_class[vclass];
^1da177e Linus Torvalds 2005-04-16 418 if (vendor_class) {
^1da177e Linus Torvalds 2005-04-16 419 if (is_vendor_method_in_use(
^1da177e Linus Torvalds 2005-04-16 420 vendor_class,
^1da177e Linus Torvalds 2005-04-16 421 mad_reg_req))
47a2b338 Daniel Jurgens 2017-05-19 422 goto error5;
^1da177e Linus Torvalds 2005-04-16 423 }
^1da177e Linus Torvalds 2005-04-16 424 }
^1da177e Linus Torvalds 2005-04-16 425 ret2 = add_oui_reg_req(mad_reg_req, mad_agent_priv);
^1da177e Linus Torvalds 2005-04-16 426 }
^1da177e Linus Torvalds 2005-04-16 427 if (ret2) {
^1da177e Linus Torvalds 2005-04-16 428 ret = ERR_PTR(ret2);
47a2b338 Daniel Jurgens 2017-05-19 429 goto error5;
^1da177e Linus Torvalds 2005-04-16 430 }
^1da177e Linus Torvalds 2005-04-16 431 }
^1da177e Linus Torvalds 2005-04-16 432
^1da177e Linus Torvalds 2005-04-16 433 /* Add mad agent into port's agent list */
^1da177e Linus Torvalds 2005-04-16 434 list_add_tail(&mad_agent_priv->agent_list, &port_priv->agent_list);
^1da177e Linus Torvalds 2005-04-16 435 spin_unlock_irqrestore(&port_priv->reg_lock, flags);
^1da177e Linus Torvalds 2005-04-16 436
^1da177e Linus Torvalds 2005-04-16 437 return &mad_agent_priv->agent;
47a2b338 Daniel Jurgens 2017-05-19 438 error5:
^1da177e Linus Torvalds 2005-04-16 439 spin_unlock_irqrestore(&port_priv->reg_lock, flags);
47a2b338 Daniel Jurgens 2017-05-19 440 ib_mad_agent_security_cleanup(&mad_agent_priv->agent);
74b1ba09 Hans Westgaard Ry 2018-06-07 441 ida_simple_remove(&ib_mad_client_ids, ib_mad_client_id);
74b1ba09 Hans Westgaard Ry 2018-06-07 442
47a2b338 Daniel Jurgens 2017-05-19 443 error4:
^1da177e Linus Torvalds 2005-04-16 444 kfree(reg_req);
b82cab6b Hal Rosenstock 2005-07-27 445 error3:
2012a116 Adrian Bunk 2005-11-27 446 kfree(mad_agent_priv);
^1da177e Linus Torvalds 2005-04-16 447 error1:
^1da177e Linus Torvalds 2005-04-16 448 return ret;
^1da177e Linus Torvalds 2005-04-16 449 }
^1da177e Linus Torvalds 2005-04-16 450 EXPORT_SYMBOL(ib_register_mad_agent);
^1da177e Linus Torvalds 2005-04-16 451
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd)
2018-06-16 16:04 [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd) Julia Lawall
@ 2018-06-17 6:35 ` jackm
2018-06-17 6:42 ` Julia Lawall
0 siblings, 1 reply; 3+ messages in thread
From: jackm @ 2018-06-17 6:35 UTC (permalink / raw)
To: Julia Lawall
Cc: Hans Westgaard Ry, Doug Ledford, Jason Gunthorpe, Hakon Bugge,
Parav Pandit, Pravin Shedge, Matthew Wilcox, Andrew Morton,
Jeff Layton, Wei Wang, Chris Mi, Eric Biggers, Rasmus Villemoes,
Mel Gorman, linux-rdma, linux-kernel, kbuild-all
On Sat, 16 Jun 2018 18:04:41 +0200 (CEST)
Julia Lawall <julia.lawall@lip6.fr> wrote:
> ib_mad_client_id is declared as u32, so it will not be < 0 (line 382).
>
> julia
>
Julia, your are correct.
However, I was under the impression that this patch set was abandoned
in favor of the one submitted by Matthew Wilcox! (Convert IB/mad to use
an IDR for agent IDs)
Hans, Matthew?
-Jack
> ---------- Forwarded message ----------
> Date: Fri, 8 Jun 2018 08:49:57 +0800
> From: kbuild test robot <lkp@intel.com>
> To: kbuild@01.org
> Cc: Julia Lawall <julia.lawall@lip6.fr>
> Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to
> allocate agent number
>
> Hi Hans,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on linus/master]
> [also build test WARNING on v4.17]
> [if your patch is applied to the wrong git tree, please drop us a
> note to help improve the system]
>
> url:
> https://github.com/0day-ci/linux/commits/Hans-Westgaard-Ry/IB-mad-Use-ID-allocator-routines-to-allocate-agent-number/20180608-022348 ::::::
> branch date: 6 hours ago :::::: commit date: 6 hours ago
>
> >> drivers/infiniband/core/mad.c:382:5-21: WARNING: Unsigned
> >> expression compared with zero: ib_mad_client_id < 0
>
> #
> https://github.com/0day-ci/linux/commit/74b1ba09003c9d132878734bf44f32a62bad31db
> git remote add linux-review https://github.com/0day-ci/linux git
> remote update linux-review git checkout
> 74b1ba09003c9d132878734bf44f32a62bad31db vim +382
> drivers/infiniband/core/mad.c
>
> 2527e681 Sean Hefty 2006-07-20 190
> ^1da177e Linus Torvalds 2005-04-16 191 /*
> ^1da177e Linus Torvalds 2005-04-16 192 * ib_register_mad_agent
> - Register to send/receive MADs ^1da177e Linus Torvalds
> 2005-04-16 193 */ ^1da177e Linus Torvalds 2005-04-16 194
> struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
> ^1da177e Linus Torvalds 2005-04-16 195
> u8 port_num, ^1da177e
> Linus Torvalds 2005-04-16 196
> enum ib_qp_type qp_type,
> ^1da177e Linus Torvalds 2005-04-16 197
> struct ib_mad_reg_req
> *mad_reg_req, ^1da177e Linus Torvalds 2005-04-16 198
> u8 rmpp_version, ^1da177e
> Linus Torvalds 2005-04-16 199
> ib_mad_send_handler
> send_handler, ^1da177e Linus Torvalds 2005-04-16 200
> ib_mad_recv_handler
> recv_handler, 0f29b46d Ira Weiny 2014-08-08 201
> void *context, 0f29b46d
> Ira Weiny 2014-08-08 202
> u32 registration_flags)
> ^1da177e Linus Torvalds 2005-04-16 203 { ^1da177e Linus
> Torvalds 2005-04-16 204 struct ib_mad_port_private
> *port_priv; ^1da177e Linus Torvalds 2005-04-16 205
> struct ib_mad_agent *ret = ERR_PTR(-EINVAL); ^1da177e Linus
> Torvalds 2005-04-16 206 struct ib_mad_agent_private
> *mad_agent_priv; ^1da177e Linus Torvalds 2005-04-16 207
> struct ib_mad_reg_req *reg_req = NULL; ^1da177e Linus Torvalds
> 2005-04-16 208 struct ib_mad_mgmt_class_table *class;
> ^1da177e Linus Torvalds 2005-04-16 209 struct
> ib_mad_mgmt_vendor_class_table *vendor; ^1da177e Linus Torvalds
> 2005-04-16 210 struct ib_mad_mgmt_vendor_class
> *vendor_class; ^1da177e Linus Torvalds 2005-04-16 211
> struct ib_mad_mgmt_method_table *method; ^1da177e Linus Torvalds
> 2005-04-16 212 int ret2, qpn; ^1da177e Linus Torvalds
> 2005-04-16 213 unsigned long flags; ^1da177e Linus
> Torvalds 2005-04-16 214 u8 mgmt_class, vclass; 74b1ba09
> Hans Westgaard Ry 2018-06-07 215 u32 ib_mad_client_id;
> ^1da177e Linus Torvalds 2005-04-16 216 /* Validate
> parameters */ ^1da177e Linus Torvalds 2005-04-16 217 qpn
> = get_spl_qp_index(qp_type); 9ad13a42 Ira Weiny 2014-08-08
> 218 if (qpn == -1) { 9ad13a42 Ira Weiny 2014-08-08
> 219 dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 220
> "ib_register_mad_agent: invalid QP Type %d\n", 9ad13a42 Ira
> Weiny 2014-08-08 221 qp_type);
> ^1da177e Linus Torvalds 2005-04-16 222 goto
> error1; 9ad13a42 Ira Weiny 2014-08-08 223 }
> ^1da177e Linus Torvalds 2005-04-16 224 9ad13a42 Ira Weiny
> 2014-08-08 225 if (rmpp_version && rmpp_version !=
> IB_MGMT_RMPP_VERSION) { 9ad13a42 Ira Weiny 2014-08-08 226
> dev_notice(&device->dev, 9ad13a42 Ira Weiny
> 2014-08-08 227 "ib_register_mad_agent:
> invalid RMPP Version %u\n", 9ad13a42 Ira Weiny 2014-08-08
> 228 rmpp_version); fa619a77 Hal
> Rosenstock 2005-07-27 229 goto error1; 9ad13a42
> Ira Weiny 2014-08-08 230 } ^1da177e Linus
> Torvalds 2005-04-16 231 ^1da177e Linus Torvalds 2005-04-16
> 232 /* Validate MAD registration request if supplied */
> ^1da177e Linus Torvalds 2005-04-16 233 if (mad_reg_req)
> { 9ad13a42 Ira Weiny 2014-08-08 234 if
> (mad_reg_req->mgmt_class_version >= MAX_MGMT_VERSION) { 9ad13a42 Ira
> Weiny 2014-08-08 235
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 236
> "ib_register_mad_agent: invalid
> Class Version %u\n", 9ad13a42 Ira Weiny 2014-08-08 237
> mad_reg_req->mgmt_class_version);
> ^1da177e Linus Torvalds 2005-04-16 238
> goto error1; 9ad13a42 Ira Weiny 2014-08-08 239
> } 9ad13a42 Ira Weiny 2014-08-08 240
> if (!recv_handler) { 9ad13a42 Ira Weiny
> 2014-08-08 241 dev_notice(&device->dev,
> 9ad13a42 Ira Weiny 2014-08-08 242
> "ib_register_mad_agent: no
> recv_handler\n"); ^1da177e Linus Torvalds 2005-04-16 243
> goto error1; 9ad13a42 Ira Weiny
> 2014-08-08 244 } ^1da177e Linus Torvalds
> 2005-04-16 245 if (mad_reg_req->mgmt_class >=
> MAX_MGMT_CLASS) { ^1da177e Linus Torvalds 2005-04-16 246
> /* ^1da177e Linus Torvalds 2005-04-16
> 247 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE is
> the only ^1da177e Linus Torvalds 2005-04-16 248
> * one in this range currently allowed
> ^1da177e Linus Torvalds 2005-04-16 249
> */ ^1da177e Linus Torvalds 2005-04-16 250
> if (mad_reg_req->mgmt_class != 9ad13a42 Ira
> Weiny 2014-08-08 251
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 9ad13a42 Ira Weiny
> 2014-08-08 252
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 253
> "ib_register_mad_agent:
> Invalid Mgmt Class 0x%x\n", 9ad13a42 Ira Weiny 2014-08-08
> 254
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 255
> goto error1; 9ad13a42 Ira
> Weiny 2014-08-08 256 } ^1da177e
> Linus Torvalds 2005-04-16 257 } else if
> (mad_reg_req->mgmt_class == 0) { ^1da177e Linus Torvalds
> 2005-04-16 258 /* ^1da177e Linus
> Torvalds 2005-04-16 259 * Class 0 is
> reserved in IBA and is used for ^1da177e Linus Torvalds
> 2005-04-16 260 * aliasing of
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE ^1da177e Linus Torvalds
> 2005-04-16 261 */ 9ad13a42 Ira
> Weiny 2014-08-08 262
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 263
> "ib_register_mad_agent: Invalid
> Mgmt Class 0\n"); ^1da177e Linus Torvalds 2005-04-16 264
> goto error1; ^1da177e Linus Torvalds
> 2005-04-16 265 } else if
> (is_vendor_class(mad_reg_req->mgmt_class)) { ^1da177e Linus
> Torvalds 2005-04-16 266 /* ^1da177e
> Linus Torvalds 2005-04-16 267 * If
> class is in "new" vendor range, ^1da177e Linus Torvalds
> 2005-04-16 268 * ensure supplied OUI is
> not zero ^1da177e Linus Torvalds 2005-04-16 269
> */ 9ad13a42 Ira Weiny 2014-08-08
> 270 if (!is_vendor_oui(mad_reg_req->oui))
> { 9ad13a42 Ira Weiny 2014-08-08 271
> dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 272
> "ib_register_mad_agent: No
> OUI specified for class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 273
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 274
> goto error1; ^1da177e Linus
> Torvalds 2005-04-16 275 } 9ad13a42 Ira
> Weiny 2014-08-08 276 } 618a3c03 Hal
> Rosenstock 2006-03-28 277 /* Make sure class
> supplied is consistent with RMPP */ 64cb9c6a Hal Rosenstock
> 2006-04-12 278 if
> (!ib_is_mad_class_rmpp(mad_reg_req->mgmt_class)) { 9ad13a42 Ira
> Weiny 2014-08-08 279 if
> (rmpp_version) { 9ad13a42 Ira Weiny 2014-08-08 280
> dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 281
> "ib_register_mad_agent:
> RMPP version for non-RMPP class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 282
> mad_reg_req->mgmt_class); 618a3c03 Hal Rosenstock 2006-03-28 283
> goto error1; 618a3c03 Hal
> Rosenstock 2006-03-28 284 } 9ad13a42 Ira
> Weiny 2014-08-08 285 } 1471cb6c Ira
> Weiny 2014-08-08 286 ^1da177e Linus Torvalds 2005-04-16
> 287 /* Make sure class supplied is consistent with
> QP type */ ^1da177e Linus Torvalds 2005-04-16 288
> if (qp_type == IB_QPT_SMI) { ^1da177e Linus
> Torvalds 2005-04-16 289 if
> ((mad_reg_req->mgmt_class != ^1da177e Linus Torvalds 2005-04-16
> 290
> IB_MGMT_CLASS_SUBN_LID_ROUTED) && ^1da177e Linus Torvalds
> 2005-04-16 291
> (mad_reg_req->mgmt_class != 9ad13a42 Ira Weiny 2014-08-08
> 292
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) { 9ad13a42 Ira Weiny
> 2014-08-08 293
> dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 294
> "ib_register_mad_agent:
> Invalid SM QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 295
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 296
> goto error1; 9ad13a42 Ira
> Weiny 2014-08-08 297 } ^1da177e
> Linus Torvalds 2005-04-16 298 } else { ^1da177e
> Linus Torvalds 2005-04-16 299 if
> ((mad_reg_req->mgmt_class == ^1da177e Linus Torvalds 2005-04-16
> 300
> IB_MGMT_CLASS_SUBN_LID_ROUTED) || ^1da177e Linus Torvalds
> 2005-04-16 301 (mad_reg_req->mgmt_class
> == 9ad13a42 Ira Weiny 2014-08-08 302
> IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE))
> { 9ad13a42 Ira Weiny 2014-08-08 303
> dev_notice(&device->dev, 9ad13a42 Ira
> Weiny 2014-08-08 304
> "ib_register_mad_agent:
> Invalid GS QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> 2014-08-08 305
> mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 306
> goto error1; ^1da177e Linus
> Torvalds 2005-04-16 307 } 9ad13a42 Ira
> Weiny 2014-08-08 308 } ^1da177e Linus
> Torvalds 2005-04-16 309 } else { ^1da177e Linus
> Torvalds 2005-04-16 310 /* No registration
> request supplied */ ^1da177e Linus Torvalds 2005-04-16 311
> if (!send_handler) ^1da177e Linus Torvalds
> 2005-04-16 312 goto error1; 1471cb6c Ira
> Weiny 2014-08-08 313 if (registration_flags
> & IB_MAD_USER_RMPP) 1471cb6c Ira Weiny 2014-08-08 314
> goto error1; ^1da177e Linus Torvalds
> 2005-04-16 315 } ^1da177e Linus Torvalds 2005-04-16 316
> ^1da177e Linus Torvalds 2005-04-16 317 /* Validate
> device and port */ ^1da177e Linus Torvalds 2005-04-16 318
> port_priv = ib_get_mad_port(device, port_num); ^1da177e Linus
> Torvalds 2005-04-16 319 if (!port_priv) { f57e8ca5 Yuval
> Shaia 2017-01-19 320 dev_notice(&device->dev,
> f57e8ca5 Yuval Shaia 2017-01-19 321
> "ib_register_mad_agent: Invalid port
> %d\n", f57e8ca5 Yuval Shaia 2017-01-19 322
> port_num); ^1da177e Linus Torvalds
> 2005-04-16 323 ret = ERR_PTR(-ENODEV); ^1da177e
> Linus Torvalds 2005-04-16 324 goto error1;
> ^1da177e Linus Torvalds 2005-04-16 325 } ^1da177e Linus
> Torvalds 2005-04-16 326 c8367c4c Ira Weiny 2011-05-19
> 327 /* Verify the QP requested is supported. For example,
> Ethernet devices c8367c4c Ira Weiny 2011-05-19 328
> * will not have QP0 */ c8367c4c Ira Weiny 2011-05-19 329
> if (!port_priv->qp_info[qpn].qp) { 9ad13a42 Ira Weiny
> 2014-08-08 330 dev_notice(&device->dev, 9ad13a42
> Ira Weiny 2014-08-08 331
> "ib_register_mad_agent: QP %d not supported\n", qpn); c8367c4c Ira
> Weiny 2011-05-19 332 ret =
> ERR_PTR(-EPROTONOSUPPORT); c8367c4c Ira Weiny 2011-05-19
> 333 goto error1; c8367c4c Ira Weiny
> 2011-05-19 334 } c8367c4c Ira Weiny 2011-05-19 335
> ^1da177e Linus Torvalds 2005-04-16 336 /* Allocate
> structures */ de6eb66b Roland Dreier 2005-11-02 337
> mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
> ^1da177e Linus Torvalds 2005-04-16 338 if
> (!mad_agent_priv) { ^1da177e Linus Torvalds 2005-04-16 339
> ret = ERR_PTR(-ENOMEM); ^1da177e Linus Torvalds
> 2005-04-16 340 goto error1; ^1da177e Linus
> Torvalds 2005-04-16 341 } b82cab6b Hal Rosenstock
> 2005-07-27 342 ^1da177e Linus Torvalds 2005-04-16 343
> if (mad_reg_req) { 9893e742 Julia Lawall 2010-05-15 344
> reg_req = kmemdup(mad_reg_req, sizeof *reg_req,
> GFP_KERNEL); ^1da177e Linus Torvalds 2005-04-16 345
> if (!reg_req) { ^1da177e Linus Torvalds
> 2005-04-16 346 ret = ERR_PTR(-ENOMEM);
> b82cab6b Hal Rosenstock 2005-07-27 347
> goto error3; ^1da177e Linus Torvalds 2005-04-16 348
> } ^1da177e Linus Torvalds 2005-04-16 349
> } ^1da177e Linus Torvalds 2005-04-16 350 ^1da177e Linus
> Torvalds 2005-04-16 351 /* Now, fill in the various
> structures */ ^1da177e Linus Torvalds 2005-04-16 352
> mad_agent_priv->qp_info = &port_priv->qp_info[qpn]; ^1da177e Linus
> Torvalds 2005-04-16 353 mad_agent_priv->reg_req =
> reg_req; fa619a77 Hal Rosenstock 2005-07-27 354
> mad_agent_priv->agent.rmpp_version = rmpp_version; ^1da177e Linus
> Torvalds 2005-04-16 355 mad_agent_priv->agent.device =
> device; ^1da177e Linus Torvalds 2005-04-16 356
> mad_agent_priv->agent.recv_handler = recv_handler; ^1da177e Linus
> Torvalds 2005-04-16 357
> mad_agent_priv->agent.send_handler = send_handler; ^1da177e Linus
> Torvalds 2005-04-16 358 mad_agent_priv->agent.context =
> context; ^1da177e Linus Torvalds 2005-04-16 359
> mad_agent_priv->agent.qp = port_priv->qp_info[qpn].qp; ^1da177e Linus
> Torvalds 2005-04-16 360 mad_agent_priv->agent.port_num =
> port_num; 0f29b46d Ira Weiny 2014-08-08 361
> mad_agent_priv->agent.flags = registration_flags; d9620a4c Ralph
> Campbell 2009-02-27 362
> spin_lock_init(&mad_agent_priv->lock); d9620a4c Ralph Campbell
> 2009-02-27 363 INIT_LIST_HEAD(&mad_agent_priv->send_list);
> d9620a4c Ralph Campbell 2009-02-27 364
> INIT_LIST_HEAD(&mad_agent_priv->wait_list); d9620a4c Ralph
> Campbell 2009-02-27 365
> INIT_LIST_HEAD(&mad_agent_priv->done_list); d9620a4c Ralph
> Campbell 2009-02-27 366
> INIT_LIST_HEAD(&mad_agent_priv->rmpp_list); d9620a4c Ralph
> Campbell 2009-02-27 367
> INIT_DELAYED_WORK(&mad_agent_priv->timed_work, timeout_sends);
> d9620a4c Ralph Campbell 2009-02-27 368
> INIT_LIST_HEAD(&mad_agent_priv->local_list); d9620a4c Ralph
> Campbell 2009-02-27 369
> INIT_WORK(&mad_agent_priv->local_work, local_completions); d9620a4c
> Ralph Campbell 2009-02-27 370
> atomic_set(&mad_agent_priv->refcount, 1); d9620a4c Ralph Campbell
> 2009-02-27 371 init_completion(&mad_agent_priv->comp);
> ^1da177e Linus Torvalds 2005-04-16 372 47a2b338 Daniel Jurgens
> 2017-05-19 373 ret2 =
> ib_mad_agent_security_setup(&mad_agent_priv->agent, qp_type);
> 47a2b338 Daniel Jurgens 2017-05-19 374 if (ret2)
> { 47a2b338 Daniel Jurgens 2017-05-19 375 ret =
> ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 376
> goto error4; 47a2b338 Daniel Jurgens 2017-05-19
> 377 } 74b1ba09 Hans Westgaard Ry 2018-06-07 378
> ib_mad_client_id = ida_simple_get_cyclic(&ib_mad_client_ids, 74b1ba09
> Hans Westgaard Ry 2018-06-07 379
> 1, 74b1ba09 Hans
> Westgaard Ry 2018-06-07 380
> BIT(24) - 1, 74b1ba09
> Hans Westgaard Ry 2018-06-07 381
> GFP_KERNEL); 74b1ba09
> Hans Westgaard Ry 2018-06-07 @382 if (ib_mad_client_id < 0)
> { 74b1ba09 Hans Westgaard Ry 2018-06-07 383
> pr_err("Couldn't allocate agent tid; errcode: %#x\n", 74b1ba09 Hans
> Westgaard Ry 2018-06-07 384
> ib_mad_client_id); 74b1ba09 Hans Westgaard Ry 2018-06-07 385
> ret = ERR_PTR(ib_mad_client_id); 74b1ba09 Hans
> Westgaard Ry 2018-06-07 386 goto error4; 74b1ba09
> Hans Westgaard Ry 2018-06-07 387 } 74b1ba09 Hans Westgaard
> Ry 2018-06-07 388 mad_agent_priv->agent.hi_tid =
> ib_mad_client_id; 47a2b338 Daniel Jurgens 2017-05-19 389 ^1da177e
> Linus Torvalds 2005-04-16 390
> spin_lock_irqsave(&port_priv->reg_lock, flags); ^1da177e Linus
> Torvalds 2005-04-16 391 ^1da177e Linus Torvalds 2005-04-16
> 392 /* ^1da177e Linus Torvalds 2005-04-16 393
> * Make sure MAD registration (if supplied) ^1da177e Linus Torvalds
> 2005-04-16 394 * is non overlapping with any existing ones
> ^1da177e Linus Torvalds 2005-04-16 395 */ ^1da177e
> Linus Torvalds 2005-04-16 396 if (mad_reg_req)
> { ^1da177e Linus Torvalds 2005-04-16 397
> mgmt_class = convert_mgmt_class(mad_reg_req->mgmt_class); ^1da177e
> Linus Torvalds 2005-04-16 398 if
> (!is_vendor_class(mgmt_class)) { ^1da177e Linus Torvalds
> 2005-04-16 399 class =
> port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> 2005-04-16 400
> mgmt_class_version].class; ^1da177e Linus Torvalds 2005-04-16
> 401 if (class) { ^1da177e Linus Torvalds
> 2005-04-16 402 method =
> class->method_table[mgmt_class]; ^1da177e Linus Torvalds
> 2005-04-16 403 if (method)
> { ^1da177e Linus Torvalds 2005-04-16 404
> if (method_in_use(&method,
> ^1da177e Linus Torvalds 2005-04-16 405
> mad_reg_req))
> 47a2b338 Daniel Jurgens 2017-05-19 406
> goto error5; ^1da177e
> Linus Torvalds 2005-04-16 407 }
> ^1da177e Linus Torvalds 2005-04-16 408 }
> ^1da177e Linus Torvalds 2005-04-16 409
> ret2 = add_nonoui_reg_req(mad_reg_req, mad_agent_priv, ^1da177e Linus
> Torvalds 2005-04-16 410
> mgmt_class);
> ^1da177e Linus Torvalds 2005-04-16 411 } else
> { ^1da177e Linus Torvalds 2005-04-16 412
> /* "New" vendor class range */ ^1da177e Linus
> Torvalds 2005-04-16 413 vendor =
> port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> 2005-04-16 414
> mgmt_class_version].vendor; ^1da177e Linus Torvalds 2005-04-16
> 415 if (vendor) { ^1da177e Linus Torvalds
> 2005-04-16 416 vclass =
> vendor_class_index(mgmt_class); ^1da177e Linus Torvalds
> 2005-04-16 417 vendor_class =
> vendor->vendor_class[vclass]; ^1da177e Linus Torvalds 2005-04-16
> 418 if (vendor_class) { ^1da177e
> Linus Torvalds 2005-04-16 419
> if
> (is_vendor_method_in_use( ^1da177e Linus Torvalds 2005-04-16 420
> vendor_class,
> ^1da177e Linus Torvalds 2005-04-16 421
> mad_reg_req))
> 47a2b338 Daniel Jurgens 2017-05-19 422
> goto error5; ^1da177e
> Linus Torvalds 2005-04-16 423 }
> ^1da177e Linus Torvalds 2005-04-16 424 }
> ^1da177e Linus Torvalds 2005-04-16 425
> ret2 = add_oui_reg_req(mad_reg_req, mad_agent_priv); ^1da177e Linus
> Torvalds 2005-04-16 426 } ^1da177e Linus
> Torvalds 2005-04-16 427 if (ret2) { ^1da177e
> Linus Torvalds 2005-04-16 428 ret =
> ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 429
> goto error5; ^1da177e Linus Torvalds
> 2005-04-16 430 } ^1da177e Linus Torvalds
> 2005-04-16 431 } ^1da177e Linus Torvalds 2005-04-16 432
> ^1da177e Linus Torvalds 2005-04-16 433 /* Add mad agent
> into port's agent list */ ^1da177e Linus Torvalds 2005-04-16 434
> list_add_tail(&mad_agent_priv->agent_list,
> &port_priv->agent_list); ^1da177e Linus Torvalds 2005-04-16 435
> spin_unlock_irqrestore(&port_priv->reg_lock, flags); ^1da177e
> Linus Torvalds 2005-04-16 436 ^1da177e Linus Torvalds
> 2005-04-16 437 return &mad_agent_priv->agent; 47a2b338
> Daniel Jurgens 2017-05-19 438 error5: ^1da177e Linus Torvalds
> 2005-04-16 439 spin_unlock_irqrestore(&port_priv->reg_lock,
> flags); 47a2b338 Daniel Jurgens 2017-05-19 440
> ib_mad_agent_security_cleanup(&mad_agent_priv->agent); 74b1ba09 Hans
> Westgaard Ry 2018-06-07 441
> ida_simple_remove(&ib_mad_client_ids, ib_mad_client_id); 74b1ba09
> Hans Westgaard Ry 2018-06-07 442 47a2b338 Daniel Jurgens
> 2017-05-19 443 error4: ^1da177e Linus Torvalds 2005-04-16 444
> kfree(reg_req); b82cab6b Hal Rosenstock 2005-07-27 445
> error3: 2012a116 Adrian Bunk 2005-11-27 446
> kfree(mad_agent_priv); ^1da177e Linus Torvalds 2005-04-16 447
> error1: ^1da177e Linus Torvalds 2005-04-16 448 return
> ret; ^1da177e Linus Torvalds 2005-04-16 449 } ^1da177e Linus
> Torvalds 2005-04-16 450 EXPORT_SYMBOL(ib_register_mad_agent);
> ^1da177e Linus Torvalds 2005-04-16 451
>
> ---
> 0-DAY kernel test infrastructure Open Source
> Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel
> Corporation
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd)
2018-06-17 6:35 ` jackm
@ 2018-06-17 6:42 ` Julia Lawall
0 siblings, 0 replies; 3+ messages in thread
From: Julia Lawall @ 2018-06-17 6:42 UTC (permalink / raw)
To: jackm
Cc: Julia Lawall, Hans Westgaard Ry, Doug Ledford, Jason Gunthorpe,
Hakon Bugge, Parav Pandit, Pravin Shedge, Matthew Wilcox,
Andrew Morton, Jeff Layton, Wei Wang, Chris Mi, Eric Biggers,
Rasmus Villemoes, Mel Gorman, linux-rdma, linux-kernel,
kbuild-all
On Sun, 17 Jun 2018, jackm wrote:
> On Sat, 16 Jun 2018 18:04:41 +0200 (CEST)
> Julia Lawall <julia.lawall@lip6.fr> wrote:
>
> > ib_mad_client_id is declared as u32, so it will not be < 0 (line 382).
> >
> > julia
> >
> Julia, your are correct.
> However, I was under the impression that this patch set was abandoned
> in favor of the one submitted by Matthew Wilcox! (Convert IB/mad to use
> an IDR for agent IDs)
No idea. I just get the kbuild reports, and this was one that I didn't
get to in a timely manner. So it's probably fine to ignore it.
julia
>
> Hans, Matthew?
>
> -Jack
> > ---------- Forwarded message ----------
> > Date: Fri, 8 Jun 2018 08:49:57 +0800
> > From: kbuild test robot <lkp@intel.com>
> > To: kbuild@01.org
> > Cc: Julia Lawall <julia.lawall@lip6.fr>
> > Subject: Re: [PATCH v3 2/2] IB/mad: Use ID allocator routines to
> > allocate agent number
> >
> > Hi Hans,
> >
> > Thank you for the patch! Perhaps something to improve:
> >
> > [auto build test WARNING on linus/master]
> > [also build test WARNING on v4.17]
> > [if your patch is applied to the wrong git tree, please drop us a
> > note to help improve the system]
> >
> > url:
> > https://github.com/0day-ci/linux/commits/Hans-Westgaard-Ry/IB-mad-Use-ID-allocator-routines-to-allocate-agent-number/20180608-022348 ::::::
> > branch date: 6 hours ago :::::: commit date: 6 hours ago
> >
> > >> drivers/infiniband/core/mad.c:382:5-21: WARNING: Unsigned
> > >> expression compared with zero: ib_mad_client_id < 0
> >
> > #
> > https://github.com/0day-ci/linux/commit/74b1ba09003c9d132878734bf44f32a62bad31db
> > git remote add linux-review https://github.com/0day-ci/linux git
> > remote update linux-review git checkout
> > 74b1ba09003c9d132878734bf44f32a62bad31db vim +382
> > drivers/infiniband/core/mad.c
> >
> > 2527e681 Sean Hefty 2006-07-20 190
> > ^1da177e Linus Torvalds 2005-04-16 191 /*
> > ^1da177e Linus Torvalds 2005-04-16 192 * ib_register_mad_agent
> > - Register to send/receive MADs ^1da177e Linus Torvalds
> > 2005-04-16 193 */ ^1da177e Linus Torvalds 2005-04-16 194
> > struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
> > ^1da177e Linus Torvalds 2005-04-16 195
> > u8 port_num, ^1da177e
> > Linus Torvalds 2005-04-16 196
> > enum ib_qp_type qp_type,
> > ^1da177e Linus Torvalds 2005-04-16 197
> > struct ib_mad_reg_req
> > *mad_reg_req, ^1da177e Linus Torvalds 2005-04-16 198
> > u8 rmpp_version, ^1da177e
> > Linus Torvalds 2005-04-16 199
> > ib_mad_send_handler
> > send_handler, ^1da177e Linus Torvalds 2005-04-16 200
> > ib_mad_recv_handler
> > recv_handler, 0f29b46d Ira Weiny 2014-08-08 201
> > void *context, 0f29b46d
> > Ira Weiny 2014-08-08 202
> > u32 registration_flags)
> > ^1da177e Linus Torvalds 2005-04-16 203 { ^1da177e Linus
> > Torvalds 2005-04-16 204 struct ib_mad_port_private
> > *port_priv; ^1da177e Linus Torvalds 2005-04-16 205
> > struct ib_mad_agent *ret = ERR_PTR(-EINVAL); ^1da177e Linus
> > Torvalds 2005-04-16 206 struct ib_mad_agent_private
> > *mad_agent_priv; ^1da177e Linus Torvalds 2005-04-16 207
> > struct ib_mad_reg_req *reg_req = NULL; ^1da177e Linus Torvalds
> > 2005-04-16 208 struct ib_mad_mgmt_class_table *class;
> > ^1da177e Linus Torvalds 2005-04-16 209 struct
> > ib_mad_mgmt_vendor_class_table *vendor; ^1da177e Linus Torvalds
> > 2005-04-16 210 struct ib_mad_mgmt_vendor_class
> > *vendor_class; ^1da177e Linus Torvalds 2005-04-16 211
> > struct ib_mad_mgmt_method_table *method; ^1da177e Linus Torvalds
> > 2005-04-16 212 int ret2, qpn; ^1da177e Linus Torvalds
> > 2005-04-16 213 unsigned long flags; ^1da177e Linus
> > Torvalds 2005-04-16 214 u8 mgmt_class, vclass; 74b1ba09
> > Hans Westgaard Ry 2018-06-07 215 u32 ib_mad_client_id;
> > ^1da177e Linus Torvalds 2005-04-16 216 /* Validate
> > parameters */ ^1da177e Linus Torvalds 2005-04-16 217 qpn
> > = get_spl_qp_index(qp_type); 9ad13a42 Ira Weiny 2014-08-08
> > 218 if (qpn == -1) { 9ad13a42 Ira Weiny 2014-08-08
> > 219 dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 220
> > "ib_register_mad_agent: invalid QP Type %d\n", 9ad13a42 Ira
> > Weiny 2014-08-08 221 qp_type);
> > ^1da177e Linus Torvalds 2005-04-16 222 goto
> > error1; 9ad13a42 Ira Weiny 2014-08-08 223 }
> > ^1da177e Linus Torvalds 2005-04-16 224 9ad13a42 Ira Weiny
> > 2014-08-08 225 if (rmpp_version && rmpp_version !=
> > IB_MGMT_RMPP_VERSION) { 9ad13a42 Ira Weiny 2014-08-08 226
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny
> > 2014-08-08 227 "ib_register_mad_agent:
> > invalid RMPP Version %u\n", 9ad13a42 Ira Weiny 2014-08-08
> > 228 rmpp_version); fa619a77 Hal
> > Rosenstock 2005-07-27 229 goto error1; 9ad13a42
> > Ira Weiny 2014-08-08 230 } ^1da177e Linus
> > Torvalds 2005-04-16 231 ^1da177e Linus Torvalds 2005-04-16
> > 232 /* Validate MAD registration request if supplied */
> > ^1da177e Linus Torvalds 2005-04-16 233 if (mad_reg_req)
> > { 9ad13a42 Ira Weiny 2014-08-08 234 if
> > (mad_reg_req->mgmt_class_version >= MAX_MGMT_VERSION) { 9ad13a42 Ira
> > Weiny 2014-08-08 235
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 236
> > "ib_register_mad_agent: invalid
> > Class Version %u\n", 9ad13a42 Ira Weiny 2014-08-08 237
> > mad_reg_req->mgmt_class_version);
> > ^1da177e Linus Torvalds 2005-04-16 238
> > goto error1; 9ad13a42 Ira Weiny 2014-08-08 239
> > } 9ad13a42 Ira Weiny 2014-08-08 240
> > if (!recv_handler) { 9ad13a42 Ira Weiny
> > 2014-08-08 241 dev_notice(&device->dev,
> > 9ad13a42 Ira Weiny 2014-08-08 242
> > "ib_register_mad_agent: no
> > recv_handler\n"); ^1da177e Linus Torvalds 2005-04-16 243
> > goto error1; 9ad13a42 Ira Weiny
> > 2014-08-08 244 } ^1da177e Linus Torvalds
> > 2005-04-16 245 if (mad_reg_req->mgmt_class >=
> > MAX_MGMT_CLASS) { ^1da177e Linus Torvalds 2005-04-16 246
> > /* ^1da177e Linus Torvalds 2005-04-16
> > 247 * IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE is
> > the only ^1da177e Linus Torvalds 2005-04-16 248
> > * one in this range currently allowed
> > ^1da177e Linus Torvalds 2005-04-16 249
> > */ ^1da177e Linus Torvalds 2005-04-16 250
> > if (mad_reg_req->mgmt_class != 9ad13a42 Ira
> > Weiny 2014-08-08 251
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) { 9ad13a42 Ira Weiny
> > 2014-08-08 252
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 253
> > "ib_register_mad_agent:
> > Invalid Mgmt Class 0x%x\n", 9ad13a42 Ira Weiny 2014-08-08
> > 254
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 255
> > goto error1; 9ad13a42 Ira
> > Weiny 2014-08-08 256 } ^1da177e
> > Linus Torvalds 2005-04-16 257 } else if
> > (mad_reg_req->mgmt_class == 0) { ^1da177e Linus Torvalds
> > 2005-04-16 258 /* ^1da177e Linus
> > Torvalds 2005-04-16 259 * Class 0 is
> > reserved in IBA and is used for ^1da177e Linus Torvalds
> > 2005-04-16 260 * aliasing of
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE ^1da177e Linus Torvalds
> > 2005-04-16 261 */ 9ad13a42 Ira
> > Weiny 2014-08-08 262
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 263
> > "ib_register_mad_agent: Invalid
> > Mgmt Class 0\n"); ^1da177e Linus Torvalds 2005-04-16 264
> > goto error1; ^1da177e Linus Torvalds
> > 2005-04-16 265 } else if
> > (is_vendor_class(mad_reg_req->mgmt_class)) { ^1da177e Linus
> > Torvalds 2005-04-16 266 /* ^1da177e
> > Linus Torvalds 2005-04-16 267 * If
> > class is in "new" vendor range, ^1da177e Linus Torvalds
> > 2005-04-16 268 * ensure supplied OUI is
> > not zero ^1da177e Linus Torvalds 2005-04-16 269
> > */ 9ad13a42 Ira Weiny 2014-08-08
> > 270 if (!is_vendor_oui(mad_reg_req->oui))
> > { 9ad13a42 Ira Weiny 2014-08-08 271
> > dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 272
> > "ib_register_mad_agent: No
> > OUI specified for class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 273
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 274
> > goto error1; ^1da177e Linus
> > Torvalds 2005-04-16 275 } 9ad13a42 Ira
> > Weiny 2014-08-08 276 } 618a3c03 Hal
> > Rosenstock 2006-03-28 277 /* Make sure class
> > supplied is consistent with RMPP */ 64cb9c6a Hal Rosenstock
> > 2006-04-12 278 if
> > (!ib_is_mad_class_rmpp(mad_reg_req->mgmt_class)) { 9ad13a42 Ira
> > Weiny 2014-08-08 279 if
> > (rmpp_version) { 9ad13a42 Ira Weiny 2014-08-08 280
> > dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 281
> > "ib_register_mad_agent:
> > RMPP version for non-RMPP class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 282
> > mad_reg_req->mgmt_class); 618a3c03 Hal Rosenstock 2006-03-28 283
> > goto error1; 618a3c03 Hal
> > Rosenstock 2006-03-28 284 } 9ad13a42 Ira
> > Weiny 2014-08-08 285 } 1471cb6c Ira
> > Weiny 2014-08-08 286 ^1da177e Linus Torvalds 2005-04-16
> > 287 /* Make sure class supplied is consistent with
> > QP type */ ^1da177e Linus Torvalds 2005-04-16 288
> > if (qp_type == IB_QPT_SMI) { ^1da177e Linus
> > Torvalds 2005-04-16 289 if
> > ((mad_reg_req->mgmt_class != ^1da177e Linus Torvalds 2005-04-16
> > 290
> > IB_MGMT_CLASS_SUBN_LID_ROUTED) && ^1da177e Linus Torvalds
> > 2005-04-16 291
> > (mad_reg_req->mgmt_class != 9ad13a42 Ira Weiny 2014-08-08
> > 292
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)) { 9ad13a42 Ira Weiny
> > 2014-08-08 293
> > dev_notice(&device->dev, 9ad13a42 Ira Weiny 2014-08-08 294
> > "ib_register_mad_agent:
> > Invalid SM QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 295
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 296
> > goto error1; 9ad13a42 Ira
> > Weiny 2014-08-08 297 } ^1da177e
> > Linus Torvalds 2005-04-16 298 } else { ^1da177e
> > Linus Torvalds 2005-04-16 299 if
> > ((mad_reg_req->mgmt_class == ^1da177e Linus Torvalds 2005-04-16
> > 300
> > IB_MGMT_CLASS_SUBN_LID_ROUTED) || ^1da177e Linus Torvalds
> > 2005-04-16 301 (mad_reg_req->mgmt_class
> > == 9ad13a42 Ira Weiny 2014-08-08 302
> > IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE))
> > { 9ad13a42 Ira Weiny 2014-08-08 303
> > dev_notice(&device->dev, 9ad13a42 Ira
> > Weiny 2014-08-08 304
> > "ib_register_mad_agent:
> > Invalid GS QP type: class 0x%x\n", 9ad13a42 Ira Weiny
> > 2014-08-08 305
> > mad_reg_req->mgmt_class); ^1da177e Linus Torvalds 2005-04-16 306
> > goto error1; ^1da177e Linus
> > Torvalds 2005-04-16 307 } 9ad13a42 Ira
> > Weiny 2014-08-08 308 } ^1da177e Linus
> > Torvalds 2005-04-16 309 } else { ^1da177e Linus
> > Torvalds 2005-04-16 310 /* No registration
> > request supplied */ ^1da177e Linus Torvalds 2005-04-16 311
> > if (!send_handler) ^1da177e Linus Torvalds
> > 2005-04-16 312 goto error1; 1471cb6c Ira
> > Weiny 2014-08-08 313 if (registration_flags
> > & IB_MAD_USER_RMPP) 1471cb6c Ira Weiny 2014-08-08 314
> > goto error1; ^1da177e Linus Torvalds
> > 2005-04-16 315 } ^1da177e Linus Torvalds 2005-04-16 316
> > ^1da177e Linus Torvalds 2005-04-16 317 /* Validate
> > device and port */ ^1da177e Linus Torvalds 2005-04-16 318
> > port_priv = ib_get_mad_port(device, port_num); ^1da177e Linus
> > Torvalds 2005-04-16 319 if (!port_priv) { f57e8ca5 Yuval
> > Shaia 2017-01-19 320 dev_notice(&device->dev,
> > f57e8ca5 Yuval Shaia 2017-01-19 321
> > "ib_register_mad_agent: Invalid port
> > %d\n", f57e8ca5 Yuval Shaia 2017-01-19 322
> > port_num); ^1da177e Linus Torvalds
> > 2005-04-16 323 ret = ERR_PTR(-ENODEV); ^1da177e
> > Linus Torvalds 2005-04-16 324 goto error1;
> > ^1da177e Linus Torvalds 2005-04-16 325 } ^1da177e Linus
> > Torvalds 2005-04-16 326 c8367c4c Ira Weiny 2011-05-19
> > 327 /* Verify the QP requested is supported. For example,
> > Ethernet devices c8367c4c Ira Weiny 2011-05-19 328
> > * will not have QP0 */ c8367c4c Ira Weiny 2011-05-19 329
> > if (!port_priv->qp_info[qpn].qp) { 9ad13a42 Ira Weiny
> > 2014-08-08 330 dev_notice(&device->dev, 9ad13a42
> > Ira Weiny 2014-08-08 331
> > "ib_register_mad_agent: QP %d not supported\n", qpn); c8367c4c Ira
> > Weiny 2011-05-19 332 ret =
> > ERR_PTR(-EPROTONOSUPPORT); c8367c4c Ira Weiny 2011-05-19
> > 333 goto error1; c8367c4c Ira Weiny
> > 2011-05-19 334 } c8367c4c Ira Weiny 2011-05-19 335
> > ^1da177e Linus Torvalds 2005-04-16 336 /* Allocate
> > structures */ de6eb66b Roland Dreier 2005-11-02 337
> > mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
> > ^1da177e Linus Torvalds 2005-04-16 338 if
> > (!mad_agent_priv) { ^1da177e Linus Torvalds 2005-04-16 339
> > ret = ERR_PTR(-ENOMEM); ^1da177e Linus Torvalds
> > 2005-04-16 340 goto error1; ^1da177e Linus
> > Torvalds 2005-04-16 341 } b82cab6b Hal Rosenstock
> > 2005-07-27 342 ^1da177e Linus Torvalds 2005-04-16 343
> > if (mad_reg_req) { 9893e742 Julia Lawall 2010-05-15 344
> > reg_req = kmemdup(mad_reg_req, sizeof *reg_req,
> > GFP_KERNEL); ^1da177e Linus Torvalds 2005-04-16 345
> > if (!reg_req) { ^1da177e Linus Torvalds
> > 2005-04-16 346 ret = ERR_PTR(-ENOMEM);
> > b82cab6b Hal Rosenstock 2005-07-27 347
> > goto error3; ^1da177e Linus Torvalds 2005-04-16 348
> > } ^1da177e Linus Torvalds 2005-04-16 349
> > } ^1da177e Linus Torvalds 2005-04-16 350 ^1da177e Linus
> > Torvalds 2005-04-16 351 /* Now, fill in the various
> > structures */ ^1da177e Linus Torvalds 2005-04-16 352
> > mad_agent_priv->qp_info = &port_priv->qp_info[qpn]; ^1da177e Linus
> > Torvalds 2005-04-16 353 mad_agent_priv->reg_req =
> > reg_req; fa619a77 Hal Rosenstock 2005-07-27 354
> > mad_agent_priv->agent.rmpp_version = rmpp_version; ^1da177e Linus
> > Torvalds 2005-04-16 355 mad_agent_priv->agent.device =
> > device; ^1da177e Linus Torvalds 2005-04-16 356
> > mad_agent_priv->agent.recv_handler = recv_handler; ^1da177e Linus
> > Torvalds 2005-04-16 357
> > mad_agent_priv->agent.send_handler = send_handler; ^1da177e Linus
> > Torvalds 2005-04-16 358 mad_agent_priv->agent.context =
> > context; ^1da177e Linus Torvalds 2005-04-16 359
> > mad_agent_priv->agent.qp = port_priv->qp_info[qpn].qp; ^1da177e Linus
> > Torvalds 2005-04-16 360 mad_agent_priv->agent.port_num =
> > port_num; 0f29b46d Ira Weiny 2014-08-08 361
> > mad_agent_priv->agent.flags = registration_flags; d9620a4c Ralph
> > Campbell 2009-02-27 362
> > spin_lock_init(&mad_agent_priv->lock); d9620a4c Ralph Campbell
> > 2009-02-27 363 INIT_LIST_HEAD(&mad_agent_priv->send_list);
> > d9620a4c Ralph Campbell 2009-02-27 364
> > INIT_LIST_HEAD(&mad_agent_priv->wait_list); d9620a4c Ralph
> > Campbell 2009-02-27 365
> > INIT_LIST_HEAD(&mad_agent_priv->done_list); d9620a4c Ralph
> > Campbell 2009-02-27 366
> > INIT_LIST_HEAD(&mad_agent_priv->rmpp_list); d9620a4c Ralph
> > Campbell 2009-02-27 367
> > INIT_DELAYED_WORK(&mad_agent_priv->timed_work, timeout_sends);
> > d9620a4c Ralph Campbell 2009-02-27 368
> > INIT_LIST_HEAD(&mad_agent_priv->local_list); d9620a4c Ralph
> > Campbell 2009-02-27 369
> > INIT_WORK(&mad_agent_priv->local_work, local_completions); d9620a4c
> > Ralph Campbell 2009-02-27 370
> > atomic_set(&mad_agent_priv->refcount, 1); d9620a4c Ralph Campbell
> > 2009-02-27 371 init_completion(&mad_agent_priv->comp);
> > ^1da177e Linus Torvalds 2005-04-16 372 47a2b338 Daniel Jurgens
> > 2017-05-19 373 ret2 =
> > ib_mad_agent_security_setup(&mad_agent_priv->agent, qp_type);
> > 47a2b338 Daniel Jurgens 2017-05-19 374 if (ret2)
> > { 47a2b338 Daniel Jurgens 2017-05-19 375 ret =
> > ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 376
> > goto error4; 47a2b338 Daniel Jurgens 2017-05-19
> > 377 } 74b1ba09 Hans Westgaard Ry 2018-06-07 378
> > ib_mad_client_id = ida_simple_get_cyclic(&ib_mad_client_ids, 74b1ba09
> > Hans Westgaard Ry 2018-06-07 379
> > 1, 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 380
> > BIT(24) - 1, 74b1ba09
> > Hans Westgaard Ry 2018-06-07 381
> > GFP_KERNEL); 74b1ba09
> > Hans Westgaard Ry 2018-06-07 @382 if (ib_mad_client_id < 0)
> > { 74b1ba09 Hans Westgaard Ry 2018-06-07 383
> > pr_err("Couldn't allocate agent tid; errcode: %#x\n", 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 384
> > ib_mad_client_id); 74b1ba09 Hans Westgaard Ry 2018-06-07 385
> > ret = ERR_PTR(ib_mad_client_id); 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 386 goto error4; 74b1ba09
> > Hans Westgaard Ry 2018-06-07 387 } 74b1ba09 Hans Westgaard
> > Ry 2018-06-07 388 mad_agent_priv->agent.hi_tid =
> > ib_mad_client_id; 47a2b338 Daniel Jurgens 2017-05-19 389 ^1da177e
> > Linus Torvalds 2005-04-16 390
> > spin_lock_irqsave(&port_priv->reg_lock, flags); ^1da177e Linus
> > Torvalds 2005-04-16 391 ^1da177e Linus Torvalds 2005-04-16
> > 392 /* ^1da177e Linus Torvalds 2005-04-16 393
> > * Make sure MAD registration (if supplied) ^1da177e Linus Torvalds
> > 2005-04-16 394 * is non overlapping with any existing ones
> > ^1da177e Linus Torvalds 2005-04-16 395 */ ^1da177e
> > Linus Torvalds 2005-04-16 396 if (mad_reg_req)
> > { ^1da177e Linus Torvalds 2005-04-16 397
> > mgmt_class = convert_mgmt_class(mad_reg_req->mgmt_class); ^1da177e
> > Linus Torvalds 2005-04-16 398 if
> > (!is_vendor_class(mgmt_class)) { ^1da177e Linus Torvalds
> > 2005-04-16 399 class =
> > port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> > 2005-04-16 400
> > mgmt_class_version].class; ^1da177e Linus Torvalds 2005-04-16
> > 401 if (class) { ^1da177e Linus Torvalds
> > 2005-04-16 402 method =
> > class->method_table[mgmt_class]; ^1da177e Linus Torvalds
> > 2005-04-16 403 if (method)
> > { ^1da177e Linus Torvalds 2005-04-16 404
> > if (method_in_use(&method,
> > ^1da177e Linus Torvalds 2005-04-16 405
> > mad_reg_req))
> > 47a2b338 Daniel Jurgens 2017-05-19 406
> > goto error5; ^1da177e
> > Linus Torvalds 2005-04-16 407 }
> > ^1da177e Linus Torvalds 2005-04-16 408 }
> > ^1da177e Linus Torvalds 2005-04-16 409
> > ret2 = add_nonoui_reg_req(mad_reg_req, mad_agent_priv, ^1da177e Linus
> > Torvalds 2005-04-16 410
> > mgmt_class);
> > ^1da177e Linus Torvalds 2005-04-16 411 } else
> > { ^1da177e Linus Torvalds 2005-04-16 412
> > /* "New" vendor class range */ ^1da177e Linus
> > Torvalds 2005-04-16 413 vendor =
> > port_priv->version[mad_reg_req-> ^1da177e Linus Torvalds
> > 2005-04-16 414
> > mgmt_class_version].vendor; ^1da177e Linus Torvalds 2005-04-16
> > 415 if (vendor) { ^1da177e Linus Torvalds
> > 2005-04-16 416 vclass =
> > vendor_class_index(mgmt_class); ^1da177e Linus Torvalds
> > 2005-04-16 417 vendor_class =
> > vendor->vendor_class[vclass]; ^1da177e Linus Torvalds 2005-04-16
> > 418 if (vendor_class) { ^1da177e
> > Linus Torvalds 2005-04-16 419
> > if
> > (is_vendor_method_in_use( ^1da177e Linus Torvalds 2005-04-16 420
> > vendor_class,
> > ^1da177e Linus Torvalds 2005-04-16 421
> > mad_reg_req))
> > 47a2b338 Daniel Jurgens 2017-05-19 422
> > goto error5; ^1da177e
> > Linus Torvalds 2005-04-16 423 }
> > ^1da177e Linus Torvalds 2005-04-16 424 }
> > ^1da177e Linus Torvalds 2005-04-16 425
> > ret2 = add_oui_reg_req(mad_reg_req, mad_agent_priv); ^1da177e Linus
> > Torvalds 2005-04-16 426 } ^1da177e Linus
> > Torvalds 2005-04-16 427 if (ret2) { ^1da177e
> > Linus Torvalds 2005-04-16 428 ret =
> > ERR_PTR(ret2); 47a2b338 Daniel Jurgens 2017-05-19 429
> > goto error5; ^1da177e Linus Torvalds
> > 2005-04-16 430 } ^1da177e Linus Torvalds
> > 2005-04-16 431 } ^1da177e Linus Torvalds 2005-04-16 432
> > ^1da177e Linus Torvalds 2005-04-16 433 /* Add mad agent
> > into port's agent list */ ^1da177e Linus Torvalds 2005-04-16 434
> > list_add_tail(&mad_agent_priv->agent_list,
> > &port_priv->agent_list); ^1da177e Linus Torvalds 2005-04-16 435
> > spin_unlock_irqrestore(&port_priv->reg_lock, flags); ^1da177e
> > Linus Torvalds 2005-04-16 436 ^1da177e Linus Torvalds
> > 2005-04-16 437 return &mad_agent_priv->agent; 47a2b338
> > Daniel Jurgens 2017-05-19 438 error5: ^1da177e Linus Torvalds
> > 2005-04-16 439 spin_unlock_irqrestore(&port_priv->reg_lock,
> > flags); 47a2b338 Daniel Jurgens 2017-05-19 440
> > ib_mad_agent_security_cleanup(&mad_agent_priv->agent); 74b1ba09 Hans
> > Westgaard Ry 2018-06-07 441
> > ida_simple_remove(&ib_mad_client_ids, ib_mad_client_id); 74b1ba09
> > Hans Westgaard Ry 2018-06-07 442 47a2b338 Daniel Jurgens
> > 2017-05-19 443 error4: ^1da177e Linus Torvalds 2005-04-16 444
> > kfree(reg_req); b82cab6b Hal Rosenstock 2005-07-27 445
> > error3: 2012a116 Adrian Bunk 2005-11-27 446
> > kfree(mad_agent_priv); ^1da177e Linus Torvalds 2005-04-16 447
> > error1: ^1da177e Linus Torvalds 2005-04-16 448 return
> > ret; ^1da177e Linus Torvalds 2005-04-16 449 } ^1da177e Linus
> > Torvalds 2005-04-16 450 EXPORT_SYMBOL(ib_register_mad_agent);
> > ^1da177e Linus Torvalds 2005-04-16 451
> >
> > ---
> > 0-DAY kernel test infrastructure Open Source
> > Technology Center
> > https://lists.01.org/pipermail/kbuild-all Intel
> > Corporation
>
>
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2018-06-16 16:04 [PATCH v3 2/2] IB/mad: Use ID allocator routines to allocate agent number (fwd) Julia Lawall
2018-06-17 6:35 ` jackm
2018-06-17 6:42 ` Julia Lawall
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