History

Merge tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki: "These remove two recently added excessive lockdep assertions from the sysfs-related thermal code and fix two issues in Intel thermal drivers. Specifics: - Drop two lockdep assertions producing false positive warnings from the sysfs-related thermal core code (Rafael Wysocki) - Fix handling of two recently added module parameters in the Intel powerclamp thermal driver (David Arcari) - Fix one more deadlock in the int340x thermal driver (Srinivas Pandruvada)" * tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: intel: powerclamp: Fix cpumask and max_idle module parameters thermal: intel: int340x: processor_thermal: Fix additional deadlock thermal: core: Drop excessive lockdep_assert_held() calls

Linus Torvalds committed 3 years ago

Commit 2bac7dc2 parents f964333 896c5153 files · +10 −6Browse files

Unified · Split

3 files
  1. drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c +0 −1
  2. drivers/thermal/intel/intel_powerclamp.c +8 −1
  3. drivers/thermal/thermal_sysfs.c +2 −4
drivers/thermal/intel/int340x_thermal/processor_thermal_device_pci.c+0−1
@@ -153,7 +153,6 @@ static int sys_set_trip_temp(struct thermal_zone_device *tzd, int trip, int temp · 152 unmodified lines
153 cancel_delayed_work_sync(&pci_info->work);153 cancel_delayed_work_sync(&pci_info->work);
154 proc_thermal_mmio_write(pci_info, PROC_THERMAL_MMIO_INT_ENABLE_0, 0);154 proc_thermal_mmio_write(pci_info, PROC_THERMAL_MMIO_INT_ENABLE_0, 0);
155 proc_thermal_mmio_write(pci_info, PROC_THERMAL_MMIO_THRES_0, 0);155 proc_thermal_mmio_write(pci_info, PROC_THERMAL_MMIO_THRES_0, 0);
156 thermal_zone_device_disable(tzd);
157 pci_info->stored_thres = 0;156 pci_info->stored_thres = 0;
158 return 0;157 return 0;
159 }158 }
drivers/thermal/intel/intel_powerclamp.c+8−1
@@ -235,6 +235,12 @@ static int max_idle_set(const char *arg, const struct kernel_param *kp) · 234 unmodified lines
235 goto skip_limit_set;235 goto skip_limit_set;
236 }236 }
237 237
238 if (!cpumask_available(idle_injection_cpu_mask)) {
239 ret = allocate_copy_idle_injection_mask(cpu_present_mask);
240 if (ret)
241 goto skip_limit_set;
242 }
243
238 if (check_invalid(idle_injection_cpu_mask, new_max_idle)) {244 if (check_invalid(idle_injection_cpu_mask, new_max_idle)) {
239 ret = -EINVAL;245 ret = -EINVAL;
240 goto skip_limit_set;246 goto skip_limit_set;
@@ -791,7 +797,8 @@ static int __init powerclamp_init(void) · 550 unmodified lines
791 return retval;797 return retval;
792 798
793 mutex_lock(&powerclamp_lock);799 mutex_lock(&powerclamp_lock);
794 retval = allocate_copy_idle_injection_mask(cpu_present_mask);800 if (!cpumask_available(idle_injection_cpu_mask))
801 retval = allocate_copy_idle_injection_mask(cpu_present_mask);
795 mutex_unlock(&powerclamp_lock);802 mutex_unlock(&powerclamp_lock);
796 803
797 if (retval)804 if (retval)
drivers/thermal/thermal_sysfs.c+2−4
@@ -876,8 +876,6 @@ static void cooling_device_stats_setup(struct thermal_cooling_device *cdev) · 875 unmodified lines
876 unsigned long states = cdev->max_state + 1;876 unsigned long states = cdev->max_state + 1;
877 int var;877 int var;
878 878
879 lockdep_assert_held(&cdev->lock);
880
881 var = sizeof(*stats);879 var = sizeof(*stats);
882 var += sizeof(*stats->time_in_state) * states;880 var += sizeof(*stats->time_in_state) * states;
883 var += sizeof(*stats->trans_table) * states * states;881 var += sizeof(*stats->trans_table) * states * states;
@@ -903,8 +901,6 @@ out: · 19 unmodified lines
903 901
904static void cooling_device_stats_destroy(struct thermal_cooling_device *cdev)902static void cooling_device_stats_destroy(struct thermal_cooling_device *cdev)
905{903{
906 lockdep_assert_held(&cdev->lock);
907
908 kfree(cdev->stats);904 kfree(cdev->stats);
909 cdev->stats = NULL;905 cdev->stats = NULL;
910}906}
@@ -931,6 +927,8 @@ void thermal_cooling_device_destroy_sysfs(struct thermal_cooling_device *cdev) · 20 unmodified lines
931 927
932void thermal_cooling_device_stats_reinit(struct thermal_cooling_device *cdev)928void thermal_cooling_device_stats_reinit(struct thermal_cooling_device *cdev)
933{929{
930 lockdep_assert_held(&cdev->lock);
931
934 cooling_device_stats_destroy(cdev);932 cooling_device_stats_destroy(cdev);
935 cooling_device_stats_setup(cdev);933 cooling_device_stats_setup(cdev);
936}934}

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