[linux-next:master 3549/14737] drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:463:28: sparse: sparse: not a function get_max_limits
kernel test robot <[email protected]>
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:::::: :::::: Manual check reason: "low confidence static check warning: drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:463:28: sparse: sparse: not a function get_max_limits" :::::: BCC: [email protected] CC: [email protected] TO: Imre Deak <[email protected]> CC: "Michał Grzelak" <[email protected]> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 28d012efb4327f9c75d5e042a7c91e9a542efa98 commit: 3d0e60d75172265d5e4dff9b148e4adf5fd561c9 [3549/14737] drm/i915/kunit: DP link: add update config tests :::::: branch date: 14 hours ago :::::: commit date: 5 weeks ago config: i386-randconfig-063-20260812 (https://download.01.org/0day-ci/archive/20260813/[email protected]/config) compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260813/[email protected]/reproduce) 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 <[email protected]> | Closes: https://lore.kernel.org/r/[email protected]/ sparse warnings: (new ones prefixed by >>) drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:274:24: sparse: sparse: not a function iter_start drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:286:22: sparse: sparse: not a function iter_end drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:297:20: sparse: sparse: not a function update >> drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:463:28: sparse: sparse: not a function get_max_limits >> drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:464:28: sparse: sparse: not a function set_max_limits drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:466:24: sparse: sparse: not a function iter_start drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:505:22: sparse: sparse: not a function iter_end >> drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:509:31: sparse: sparse: not a function get_max_bw_config drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:513:9: sparse: sparse: not a function set_max_limits drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:595:41: sparse: sparse: not a function set_max_limits drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:617:42: sparse: sparse: not a function update >> drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:677:17: sparse: sparse: not a function disable_config drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:1082:59: sparse: sparse: not a function init drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c:1093:36: sparse: sparse: not a function cleanup vim +463 drivers/gpu/drm/i915/display/tests/intel_dp_link_test.c 3d0e60d7517226 Imre Deak 2026-07-07 443 3d0e60d7517226 Imre Deak 2026-07-07 444 static void 3d0e60d7517226 Imre Deak 2026-07-07 445 verify_link_caps_for_order(const struct test_config_table *expected_table, 3d0e60d7517226 Imre Deak 2026-07-07 446 struct intel_dp_link_caps *link_caps, 3d0e60d7517226 Imre Deak 2026-07-07 447 struct intel_dp_link_caps_order config_order, 3d0e60d7517226 Imre Deak 2026-07-07 448 const struct intel_dp_link_config *max_limits) 3d0e60d7517226 Imre Deak 2026-07-07 449 { 3d0e60d7517226 Imre Deak 2026-07-07 450 struct kunit *test = expected_table->test; 3d0e60d7517226 Imre Deak 2026-07-07 451 struct test_ctx *ctx = test->priv; 3d0e60d7517226 Imre Deak 2026-07-07 452 const struct intel_dp_link_caps_test_ops *ops = 3d0e60d7517226 Imre Deak 2026-07-07 453 ctx->link_caps_ops; 3d0e60d7517226 Imre Deak 2026-07-07 454 struct intel_dp_link_config expected_max_bw_config = {}; 3d0e60d7517226 Imre Deak 2026-07-07 455 struct intel_dp_link_config actual_max_bw_config; 3d0e60d7517226 Imre Deak 2026-07-07 456 struct intel_dp_link_config last_config = {}; 3d0e60d7517226 Imre Deak 2026-07-07 457 struct intel_dp_link_config old_max_limits; 3d0e60d7517226 Imre Deak 2026-07-07 458 struct intel_dp_link_config iter_config; 3d0e60d7517226 Imre Deak 2026-07-07 459 struct intel_dp_link_caps_iter iter; 3d0e60d7517226 Imre Deak 2026-07-07 460 int num_actual_configs = 0; 3d0e60d7517226 Imre Deak 2026-07-07 461 int max_bw = 0; 3d0e60d7517226 Imre Deak 2026-07-07 462 3d0e60d7517226 Imre Deak 2026-07-07 @463 ops->get_max_limits(link_caps, &old_max_limits); 3d0e60d7517226 Imre Deak 2026-07-07 @464 ops->set_max_limits(link_caps, max_limits); 3d0e60d7517226 Imre Deak 2026-07-07 465 3d0e60d7517226 Imre Deak 2026-07-07 466 ops->iter_start(&iter, link_caps, config_order, INTEL_DP_LINK_CAPS_FILTER_ALL); 3d0e60d7517226 Imre Deak 2026-07-07 467 for_each_dp_link_config(&iter, &iter_config) { 3d0e60d7517226 Imre Deak 2026-07-07 468 int bw; 3d0e60d7517226 Imre Deak 2026-07-07 469 3d0e60d7517226 Imre Deak 2026-07-07 470 KUNIT_EXPECT_LE(test, iter_config.rate, max_limits->rate); 3d0e60d7517226 Imre Deak 2026-07-07 471 KUNIT_EXPECT_LE(test, iter_config.lane_count, max_limits->lane_count); 3d0e60d7517226 Imre Deak 2026-07-07 472 3d0e60d7517226 Imre Deak 2026-07-07 473 num_actual_configs++; 3d0e60d7517226 Imre Deak 2026-07-07 474 3d0e60d7517226 Imre Deak 2026-07-07 475 /* 3d0e60d7517226 Imre Deak 2026-07-07 476 * Verify the config's rate/lane-count values and its ordering relative 3d0e60d7517226 Imre Deak 2026-07-07 477 * to the previous config. 3d0e60d7517226 Imre Deak 2026-07-07 478 */ 3d0e60d7517226 Imre Deak 2026-07-07 479 if (last_config.rate) 3d0e60d7517226 Imre Deak 2026-07-07 480 verify_config_order(test, config_order, &last_config, &iter_config); 3d0e60d7517226 Imre Deak 2026-07-07 481 last_config = iter_config; 3d0e60d7517226 Imre Deak 2026-07-07 482 3d0e60d7517226 Imre Deak 2026-07-07 483 KUNIT_EXPECT_TRUE(test, has_rate(&expected_table->rates, 3d0e60d7517226 Imre Deak 2026-07-07 484 iter_config.rate)); 3d0e60d7517226 Imre Deak 2026-07-07 485 KUNIT_EXPECT_LE(test, iter_config.lane_count, 3d0e60d7517226 Imre Deak 2026-07-07 486 expected_table->max_lane_count); 3d0e60d7517226 Imre Deak 2026-07-07 487 KUNIT_EXPECT_TRUE(test, is_power_of_2(iter_config.lane_count)); 3d0e60d7517226 Imre Deak 2026-07-07 488 3d0e60d7517226 Imre Deak 2026-07-07 489 /* Verify the config's disabled state */ 3d0e60d7517226 Imre Deak 2026-07-07 490 KUNIT_EXPECT_FALSE(test, has_config(&expected_table->disabled_configs, 3d0e60d7517226 Imre Deak 2026-07-07 491 &iter_config)); 3d0e60d7517226 Imre Deak 2026-07-07 492 3d0e60d7517226 Imre Deak 2026-07-07 493 /* 3d0e60d7517226 Imre Deak 2026-07-07 494 * Update the max limits for allowed configs, verified at the 3d0e60d7517226 Imre Deak 2026-07-07 495 * end for the whole config table. 3d0e60d7517226 Imre Deak 2026-07-07 496 */ 3d0e60d7517226 Imre Deak 2026-07-07 497 3d0e60d7517226 Imre Deak 2026-07-07 498 bw = drm_dp_max_dprx_data_rate(iter_config.rate, iter_config.lane_count); 3d0e60d7517226 Imre Deak 2026-07-07 499 if (bw > max_bw || 3d0e60d7517226 Imre Deak 2026-07-07 500 (bw == max_bw && iter_config.rate > expected_max_bw_config.rate)) { 3d0e60d7517226 Imre Deak 2026-07-07 501 max_bw = bw; 3d0e60d7517226 Imre Deak 2026-07-07 502 expected_max_bw_config = iter_config; 3d0e60d7517226 Imre Deak 2026-07-07 503 } 3d0e60d7517226 Imre Deak 2026-07-07 504 } 3d0e60d7517226 Imre Deak 2026-07-07 505 ops->iter_end(&iter); 3d0e60d7517226 Imre Deak 2026-07-07 506 3d0e60d7517226 Imre Deak 2026-07-07 507 KUNIT_EXPECT_EQ(test, num_actual_configs, expected_num_configs(expected_table, max_limits)); 3d0e60d7517226 Imre Deak 2026-07-07 508 3d0e60d7517226 Imre Deak 2026-07-07 @509 ops->get_max_bw_config(link_caps, &actual_max_bw_config); 3d0e60d7517226 Imre Deak 2026-07-07 510 KUNIT_EXPECT_TRUE(test, link_configs_match(&expected_max_bw_config, 3d0e60d7517226 Imre Deak 2026-07-07 511 &actual_max_bw_config)); 3d0e60d7517226 Imre Deak 2026-07-07 512 3d0e60d7517226 Imre Deak 2026-07-07 513 KUNIT_ASSERT_TRUE(test, ops->set_max_limits(link_caps, &old_max_limits)); 3d0e60d7517226 Imre Deak 2026-07-07 514 } 3d0e60d7517226 Imre Deak 2026-07-07 515 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki