:::::: :::::: Manual check reason: "low confidence bisect report" :::::: Manual check reason: "only Kconfig file updated" :::::: Manual check reason: "low confidence static check first_new_problem: drivers/thermal/tegra/soctherm.c:592:32: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value]" ::::::
BCC: [email protected] CC: [email protected] CC: [email protected] TO: Dmitry Osipenko <[email protected]> CC: Daniel Lezcano <[email protected]> Hi Dmitry, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4e23eeebb2e57f5a28b36221aa776b5a1122dde5 commit: 8f8d8b0334cc4e7908b78e73936a7673bbef0411 thermal/drivers/tegra: Correct compile-testing of drivers date: 12 months ago :::::: branch date: 7 hours ago :::::: commit date: 12 months ago config: arm-randconfig-c002-20220804 (https://download.01.org/0day-ci/archive/20220808/[email protected]/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f8d8b0334cc4e7908b78e73936a7673bbef0411 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8f8d8b0334cc4e7908b78e73936a7673bbef0411 # save the config file COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross ARCH=arm KBUILD_USERCFLAGS='-fanalyzer -Wno-error' If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <[email protected]> gcc-analyzer warnings: (new ones prefixed by >>) In file included from drivers/thermal/tegra/soctherm.c:27: include/linux/irqdomain.h: In function 'irq_find_mapping': include/linux/irqdomain.h:423:22: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 423 | unsigned int irq; | ^~~ 'irq_find_mapping': event 1 | | 423 | unsigned int irq; | | ^~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/thermal/tegra/soctherm.c: In function 'tegra_thermctl_set_trip_temp': >> drivers/thermal/tegra/soctherm.c:592:32: warning: use of uninitialized value >> '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 592 | enum thermal_trip_type type; | ^~~~ 'tegra_thermctl_set_trip_temp': event 1 | | 592 | enum thermal_trip_type type; | | ^~~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/thermal/tegra/soctherm.c: In function 'tegra_thermctl_get_trend': drivers/thermal/tegra/soctherm.c:641:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 641 | int trip_temp, temp, last_temp, ret; | ^~~~~~~~~ 'tegra_thermctl_get_trend': event 1 | | 641 | int trip_temp, temp, last_temp, ret; | | ^~~~~~~~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/thermal/tegra/soctherm.c: In function 'get_hot_temp': drivers/thermal/tegra/soctherm.c:726:32: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 726 | enum thermal_trip_type type; | ^~~~ 'get_hot_temp': event 1 | | 726 | enum thermal_trip_type type; | | ^~~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/thermal/tegra/soctherm.c: In function 'tegra_soctherm_set_hwtrips': drivers/thermal/tegra/soctherm.c:778:16: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 778 | int i, trip, temperature, ret; | ^~~~ 'tegra_soctherm_set_hwtrips': event 1 | | 778 | int i, trip, temperature, ret; | | ^~~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/thermal/tegra/soctherm.c:778:22: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 778 | int i, trip, temperature, ret; | ^~~~~~~~~~~ 'tegra_soctherm_set_hwtrips': event 1 | | 778 | int i, trip, temperature, ret; | | ^~~~~~~~~~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/thermal/tegra/soctherm.c: In function 'soctherm_oc_cfg_parse': drivers/thermal/tegra/soctherm.c:1620:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 1620 | u32 val; | ^~~ 'soctherm_oc_cfg_parse': event 1 | | 1620 | u32 val; | | ^~~ | | | | | (1) use of uninitialized value '<unknown>' here | drivers/thermal/tegra/soctherm.c: In function 'soctherm_throt_cfg_parse': drivers/thermal/tegra/soctherm.c:1648:13: warning: use of uninitialized value '<unknown>' [CWE-457] [-Wanalyzer-use-of-uninitialized-value] 1648 | u32 val; | ^~~ 'soctherm_throt_cfg_parse': event 1 | | 1648 | u32 val; | | ^~~ | | | | | (1) use of uninitialized value '<unknown>' here | vim +592 drivers/thermal/tegra/soctherm.c 2510aa56ab8795 Wei Ni 2019-02-21 584 d790405d1b23cf Nicolin Chen 2017-10-25 585 static int tegra_thermctl_set_trip_temp(void *data, int trip, int temp) d790405d1b23cf Nicolin Chen 2017-10-25 586 { d790405d1b23cf Nicolin Chen 2017-10-25 587 struct tegra_thermctl_zone *zone = data; d790405d1b23cf Nicolin Chen 2017-10-25 588 struct thermal_zone_device *tz = zone->tz; d790405d1b23cf Nicolin Chen 2017-10-25 589 struct tegra_soctherm *ts = zone->ts; d790405d1b23cf Nicolin Chen 2017-10-25 590 const struct tegra_tsensor_group *sg = zone->sg; d790405d1b23cf Nicolin Chen 2017-10-25 591 struct device *dev = zone->dev; d790405d1b23cf Nicolin Chen 2017-10-25 @592 enum thermal_trip_type type; d790405d1b23cf Nicolin Chen 2017-10-25 593 int ret; d790405d1b23cf Nicolin Chen 2017-10-25 594 d790405d1b23cf Nicolin Chen 2017-10-25 595 if (!tz) d790405d1b23cf Nicolin Chen 2017-10-25 596 return -EINVAL; d790405d1b23cf Nicolin Chen 2017-10-25 597 d790405d1b23cf Nicolin Chen 2017-10-25 598 ret = tz->ops->get_trip_type(tz, trip, &type); d790405d1b23cf Nicolin Chen 2017-10-25 599 if (ret) d790405d1b23cf Nicolin Chen 2017-10-25 600 return ret; d790405d1b23cf Nicolin Chen 2017-10-25 601 d790405d1b23cf Nicolin Chen 2017-10-25 602 if (type == THERMAL_TRIP_CRITICAL) { 2510aa56ab8795 Wei Ni 2019-02-21 603 /* 2510aa56ab8795 Wei Ni 2019-02-21 604 * If thermtrips property is set in DT, 2510aa56ab8795 Wei Ni 2019-02-21 605 * doesn't need to program critical type trip to HW, 2510aa56ab8795 Wei Ni 2019-02-21 606 * if not, program critical trip to HW. 2510aa56ab8795 Wei Ni 2019-02-21 607 */ 2510aa56ab8795 Wei Ni 2019-02-21 608 if (min_low_temp == tsensor_group_thermtrip_get(ts, sg->id)) d790405d1b23cf Nicolin Chen 2017-10-25 609 return thermtrip_program(dev, sg, temp); 2510aa56ab8795 Wei Ni 2019-02-21 610 else 2510aa56ab8795 Wei Ni 2019-02-21 611 return 0; 2510aa56ab8795 Wei Ni 2019-02-21 612 d790405d1b23cf Nicolin Chen 2017-10-25 613 } else if (type == THERMAL_TRIP_HOT) { d790405d1b23cf Nicolin Chen 2017-10-25 614 int i; d790405d1b23cf Nicolin Chen 2017-10-25 615 d790405d1b23cf Nicolin Chen 2017-10-25 616 for (i = 0; i < THROTTLE_SIZE; i++) { d790405d1b23cf Nicolin Chen 2017-10-25 617 struct thermal_cooling_device *cdev; d790405d1b23cf Nicolin Chen 2017-10-25 618 struct soctherm_throt_cfg *stc; d790405d1b23cf Nicolin Chen 2017-10-25 619 d790405d1b23cf Nicolin Chen 2017-10-25 620 if (!ts->throt_cfgs[i].init) d790405d1b23cf Nicolin Chen 2017-10-25 621 continue; d790405d1b23cf Nicolin Chen 2017-10-25 622 d790405d1b23cf Nicolin Chen 2017-10-25 623 cdev = ts->throt_cfgs[i].cdev; d790405d1b23cf Nicolin Chen 2017-10-25 624 if (get_thermal_instance(tz, cdev, trip)) d790405d1b23cf Nicolin Chen 2017-10-25 625 stc = find_throttle_cfg_by_name(ts, cdev->type); d790405d1b23cf Nicolin Chen 2017-10-25 626 else d790405d1b23cf Nicolin Chen 2017-10-25 627 continue; d790405d1b23cf Nicolin Chen 2017-10-25 628 d790405d1b23cf Nicolin Chen 2017-10-25 629 return throttrip_program(dev, sg, stc, temp); d790405d1b23cf Nicolin Chen 2017-10-25 630 } d790405d1b23cf Nicolin Chen 2017-10-25 631 } d790405d1b23cf Nicolin Chen 2017-10-25 632 d790405d1b23cf Nicolin Chen 2017-10-25 633 return 0; d790405d1b23cf Nicolin Chen 2017-10-25 634 } d790405d1b23cf Nicolin Chen 2017-10-25 635 :::::: The code at line 592 was first introduced by commit :::::: d790405d1b23cf1495d22ed043a422dc44bb6848 thermal: tegra: remove forward declarations :::::: TO: Nicolin Chen <[email protected]> :::::: CC: Eduardo Valentin <[email protected]> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
