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BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: Jiri Pirko tree: https://github.com/jpirko/linux_mlxsw wip_attestation_all_2 head: 7ff5e548abbc2312431d4eea9ad283347963a6e2 commit: 3e5d2a45aaa3688da1de5a2430c2993c39451793 [48/68] ctlv: Add KUnit tests :::::: branch date: 9 hours ago :::::: commit date: 9 hours ago config: um-randconfig-2200-20261114 (https://download.01.org/0day-ci/archive/20261114/202611140128.XwkaCdD4-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 smatch: v0.5.0-9187-g5189e3fb If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202611140128.XwkaCdD4-lkp@intel.com/ New smatch warnings: lib/ctlv/tests/event_kunit.c:281 ctlv_event_test_creator_misuse() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/event_kunit.c:310 ctlv_event_test_a_dead_device() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/event_kunit.c:364 ctlv_event_test_explicit_loss() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/event_kunit.c:649 ctlv_event_test_context_lifetime() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/blob_kunit.c:608 ctlv_blob_test_a_blob_outside_the_buffer() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/blob_kunit.c:632 ctlv_blob_test_stale_cursor_is_rejected() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/blob_kunit.c:851 ctlv_blob_test_aliased_device_mappings() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/blob_kunit.c:904 ctlv_blob_test_cpu_and_device_access_are_serial() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/blob_kunit.c:979 ctlv_blob_test_exporter_failures() warn: passing zero to 'PTR_ERR' Old smatch warnings: lib/ctlv/tests/event_kunit.c:287 ctlv_event_test_creator_misuse() warn: passing zero to 'PTR_ERR' lib/ctlv/tests/event_kunit.c:290 ctlv_event_test_creator_misuse() warn: passing zero to 'PTR_ERR' vim +/PTR_ERR +281 lib/ctlv/tests/event_kunit.c 3e5d2a45aaa368 Jiri Pirko 2026-08-26 270 3e5d2a45aaa368 Jiri Pirko 2026-08-26 271 static void ctlv_event_test_creator_misuse(struct kunit *test) 3e5d2a45aaa368 Jiri Pirko 2026-08-26 272 { 3e5d2a45aaa368 Jiri Pirko 2026-08-26 273 struct ctlv_event_test_fixture *fx = ctlv_event_test_fixture_open(test); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 274 struct ctlv_cursor *payload; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 275 struct ctlv_op_ctx *ctx; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 276 3e5d2a45aaa368 Jiri Pirko 2026-08-26 277 kunit_warning_suppress(test) { 3e5d2a45aaa368 Jiri Pirko 2026-08-26 278 /* An op of this device that is executed rather than emitted. */ 3e5d2a45aaa368 Jiri Pirko 2026-08-26 279 ctx = ctlv_event_create(&fx->ctlv, CTLV_FIXTURE_OP_NOOP, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 280 &payload, GFP_KERNEL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 @281 KUNIT_EXPECT_EQ(test, PTR_ERR(ctx), -EINVAL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 282 /* An op of a family this device is not of. */ 3e5d2a45aaa368 Jiri Pirko 2026-08-26 283 ctx = ctlv_event_create(&fx->ctlv, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 284 CTLV_OP(CTLV_FAMILY_FIXTURE + 1, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 285 1), 3e5d2a45aaa368 Jiri Pirko 2026-08-26 286 &payload, GFP_KERNEL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 287 KUNIT_EXPECT_EQ(test, PTR_ERR(ctx), -EINVAL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 288 /* And one of no family at all. */ 3e5d2a45aaa368 Jiri Pirko 2026-08-26 289 ctx = ctlv_event_create(&fx->ctlv, 0, &payload, GFP_KERNEL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 290 KUNIT_EXPECT_EQ(test, PTR_ERR(ctx), -EINVAL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 291 KUNIT_EXPECT_SUPPRESSED_WARNING_COUNT(test, 3); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 292 } 3e5d2a45aaa368 Jiri Pirko 2026-08-26 293 KUNIT_EXPECT_EQ(test, ctlv_event_test_queued(fx), 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 294 KUNIT_EXPECT_EQ(test, fx->cfile.sequence, 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 295 } 3e5d2a45aaa368 Jiri Pirko 2026-08-26 296 3e5d2a45aaa368 Jiri Pirko 2026-08-26 297 static void ctlv_event_test_a_dead_device(struct kunit *test) 3e5d2a45aaa368 Jiri Pirko 2026-08-26 298 { 3e5d2a45aaa368 Jiri Pirko 2026-08-26 299 struct ctlv_event_test_fixture *fx = ctlv_event_test_fixture_open(test); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 300 struct ctlv_cursor *payload; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 301 struct ctlv_op_ctx *ctx; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 302 struct ctlv_event *event; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 303 3e5d2a45aaa368 Jiri Pirko 2026-08-26 304 ctlv_event_test_subscribe(test, fx, CTLV_FIXTURE_OP_PINGED); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 305 WRITE_ONCE(fx->ctlv.family, NULL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 306 ctlv_event_device_dead(&fx->ctlv); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 307 3e5d2a45aaa368 Jiri Pirko 2026-08-26 308 ctx = ctlv_event_create(&fx->ctlv, CTLV_FIXTURE_OP_PINGED, &payload, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 309 GFP_KERNEL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 @310 KUNIT_EXPECT_EQ(test, PTR_ERR(ctx), -ENODEV); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 311 3e5d2a45aaa368 Jiri Pirko 2026-08-26 312 /* What was queued instead, out of storage this open reserved. */ 3e5d2a45aaa368 Jiri Pirko 2026-08-26 313 event = ctlv_event_test_take(fx); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 314 KUNIT_ASSERT_NOT_NULL(test, event); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 315 KUNIT_EXPECT_TRUE(test, event->reserved); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 316 KUNIT_EXPECT_EQ(test, event->hdr.op_id, CTLV_OP_DEVICE_REMOVED); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 317 KUNIT_EXPECT_EQ(test, event->hdr.sequence, 1); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 318 KUNIT_EXPECT_EQ(test, event->hdr.length, event->len); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 319 KUNIT_EXPECT_EQ(test, fx->cfile.queue_used, fx->ctlv.queue_reserved); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 320 KUNIT_EXPECT_EQ(test, ctlv_event_test_queued(fx), 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 321 } 3e5d2a45aaa368 Jiri Pirko 2026-08-26 322 3e5d2a45aaa368 Jiri Pirko 2026-08-26 323 /* Dropped without queueing, and without taking a sequence number. */ 3e5d2a45aaa368 Jiri Pirko 2026-08-26 324 static void ctlv_event_test_an_event_nobody_wants(struct kunit *test) 3e5d2a45aaa368 Jiri Pirko 2026-08-26 325 { 3e5d2a45aaa368 Jiri Pirko 2026-08-26 326 struct ctlv_event_test_fixture *fx = ctlv_event_test_fixture_open(test); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 327 struct ctlv_cursor *payload; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 328 struct ctlv_op_ctx *ctx; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 329 3e5d2a45aaa368 Jiri Pirko 2026-08-26 330 ctx = ctlv_event_create(&fx->ctlv, CTLV_FIXTURE_OP_PINGED, &payload, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 331 GFP_KERNEL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 332 KUNIT_ASSERT_FALSE(test, IS_ERR(ctx)); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 333 KUNIT_EXPECT_EQ(test, ctlv_event_emit(ctx), 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 334 3e5d2a45aaa368 Jiri Pirko 2026-08-26 335 KUNIT_EXPECT_EQ(test, ctlv_event_test_queued(fx), 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 336 KUNIT_EXPECT_EQ(test, fx->cfile.sequence, 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 337 KUNIT_EXPECT_EQ(test, fx->cfile.queue_used, fx->ctlv.queue_reserved); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 338 } 3e5d2a45aaa368 Jiri Pirko 2026-08-26 339 3e5d2a45aaa368 Jiri Pirko 2026-08-26 340 static void ctlv_event_test_explicit_loss(struct kunit *test) 3e5d2a45aaa368 Jiri Pirko 2026-08-26 341 { 3e5d2a45aaa368 Jiri Pirko 2026-08-26 342 struct ctlv_event_test_fixture *fx = ctlv_event_test_fixture_open(test); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 343 struct ctlv_event_test_reader_waiter waiter = { 3e5d2a45aaa368 Jiri Pirko 2026-08-26 344 .cfile = &fx->cfile, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 345 }; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 346 struct ctlv_file *other = ctlv_event_test_other_open(test, fx); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 347 struct task_struct *task; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 348 struct ctlv_cursor *payload; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 349 struct ctlv_op_ctx *ctx; 3e5d2a45aaa368 Jiri Pirko 2026-08-26 350 3e5d2a45aaa368 Jiri Pirko 2026-08-26 351 init_completion(&waiter.entered); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 352 init_completion(&waiter.done); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 353 ctlv_event_test_subscribe(test, fx, CTLV_FIXTURE_OP_PINGED); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 354 task = kthread_run(ctlv_event_test_reader_wait, &waiter, "ctlv-event-reader"); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 355 KUNIT_ASSERT_FALSE(test, IS_ERR(task)); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 356 wait_for_completion(&waiter.entered); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 357 3e5d2a45aaa368 Jiri Pirko 2026-08-26 358 kunit_activate_static_stub(test, ctlv_event_create, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 359 ctlv_event_test_create_nomem); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 360 kunit_activate_static_stub(test, ctlv_event_alloc, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 361 ctlv_event_test_record_unexpected); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 362 ctx = ctlv_event_create(&fx->ctlv, CTLV_FIXTURE_OP_PINGED, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 363 &payload, GFP_KERNEL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 @364 KUNIT_EXPECT_EQ(test, PTR_ERR(ctx), -ENOMEM); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 365 KUNIT_EXPECT_EQ(test, fx->cfile.sequence, 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 366 ctlv_event_lost(&fx->ctlv, CTLV_FIXTURE_OP_PINGED); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 367 kunit_deactivate_static_stub(test, ctlv_event_alloc); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 368 kunit_deactivate_static_stub(test, ctlv_event_create); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 369 3e5d2a45aaa368 Jiri Pirko 2026-08-26 370 KUNIT_EXPECT_NE(test, wait_for_completion_timeout(&waiter.done, HZ), 3e5d2a45aaa368 Jiri Pirko 2026-08-26 371 0UL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 372 kthread_stop(task); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 373 KUNIT_EXPECT_EQ(test, waiter.result, 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 374 3e5d2a45aaa368 Jiri Pirko 2026-08-26 375 ctx = ctlv_event_create(&fx->ctlv, CTLV_FIXTURE_OP_PINGED, 3e5d2a45aaa368 Jiri Pirko 2026-08-26 376 &payload, GFP_KERNEL); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 377 KUNIT_ASSERT_FALSE(test, IS_ERR(ctx)); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 378 KUNIT_EXPECT_EQ(test, ctlv_event_emit(ctx), 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 379 ctlv_event_lost(&fx->ctlv, CTLV_FIXTURE_OP_PINGED); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 380 3e5d2a45aaa368 Jiri Pirko 2026-08-26 381 KUNIT_EXPECT_EQ(test, fx->cfile.sequence, 3); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 382 KUNIT_EXPECT_TRUE(test, fx->cfile.overflowing); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 383 KUNIT_EXPECT_EQ(test, fx->cfile.first_dropped, 1); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 384 KUNIT_EXPECT_EQ(test, fx->cfile.last_dropped, 3); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 385 KUNIT_EXPECT_EQ(test, fx->cfile.dropped, 3); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 386 KUNIT_EXPECT_EQ(test, ctlv_event_test_queued(fx), 1); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 387 KUNIT_EXPECT_EQ(test, other->sequence, 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 388 KUNIT_EXPECT_FALSE(test, other->overflowing); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 389 KUNIT_EXPECT_EQ(test, ctlv_event_test_file_queued(other), 0); 3e5d2a45aaa368 Jiri Pirko 2026-08-26 390 } 3e5d2a45aaa368 Jiri Pirko 2026-08-26 391 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki