diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/apei/ghes.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/ec.c | 38 | ||||
| -rw-r--r-- | drivers/acpi/glue.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/internal.h | 1 | ||||
| -rw-r--r-- | drivers/acpi/ioapic.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/nfit/core.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/scan.c | 1 |
7 files changed, 33 insertions, 34 deletions
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index e53bef6..0375c60 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -1072,6 +1072,7 @@ static int ghes_remove(struct platform_device *ghes_dev) if (list_empty(&ghes_sci)) unregister_acpi_hed_notifier(&ghes_notifier_sci); mutex_unlock(&ghes_list_mutex); + synchronize_rcu(); break; case ACPI_HEST_NOTIFY_NMI: ghes_nmi_remove(ghes); diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 22ca892..5187469 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -147,7 +147,7 @@ static unsigned int ec_storm_threshold __read_mostly = 8; module_param(ec_storm_threshold, uint, 0644); MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm"); -static bool ec_freeze_events __read_mostly = true; +static bool ec_freeze_events __read_mostly = false; module_param(ec_freeze_events, bool, 0644); MODULE_PARM_DESC(ec_freeze_events, "Disabling event handling during suspend/resume"); @@ -1728,7 +1728,7 @@ error: * functioning ECDT EC first in order to handle the events. * https://bugzilla.kernel.org/show_bug.cgi?id=115021 */ -int __init acpi_ec_ecdt_start(void) +static int __init acpi_ec_ecdt_start(void) { acpi_handle handle; @@ -1865,24 +1865,6 @@ error: } #ifdef CONFIG_PM_SLEEP -static int acpi_ec_suspend_noirq(struct device *dev) -{ - struct acpi_ec *ec = - acpi_driver_data(to_acpi_device(dev)); - - acpi_ec_enter_noirq(ec); - return 0; -} - -static int acpi_ec_resume_noirq(struct device *dev) -{ - struct acpi_ec *ec = - acpi_driver_data(to_acpi_device(dev)); - - acpi_ec_leave_noirq(ec); - return 0; -} - static int acpi_ec_suspend(struct device *dev) { struct acpi_ec *ec = @@ -1904,7 +1886,6 @@ static int acpi_ec_resume(struct device *dev) #endif static const struct dev_pm_ops acpi_ec_pm = { - SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend_noirq, acpi_ec_resume_noirq) SET_SYSTEM_SLEEP_PM_OPS(acpi_ec_suspend, acpi_ec_resume) }; @@ -1978,20 +1959,17 @@ static inline void acpi_ec_query_exit(void) int __init acpi_ec_init(void) { int result; + int ecdt_fail, dsdt_fail; /* register workqueue for _Qxx evaluations */ result = acpi_ec_query_init(); if (result) - goto err_exit; - /* Now register the driver for the EC */ - result = acpi_bus_register_driver(&acpi_ec_driver); - if (result) - goto err_exit; + return result; -err_exit: - if (result) - acpi_ec_query_exit(); - return result; + /* Drivers must be started after acpi_ec_query_init() */ + ecdt_fail = acpi_ec_ecdt_start(); + dsdt_fail = acpi_bus_register_driver(&acpi_ec_driver); + return ecdt_fail && dsdt_fail ? -ENODEV : 0; } /* EC driver currently not unloadable */ diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 5ea5dc2..73c9c7f 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -98,7 +98,15 @@ static int find_child_checks(struct acpi_device *adev, bool check_children) if (check_children && list_empty(&adev->children)) return -ENODEV; - return sta_present ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE; + /* + * If the device has a _HID (or _CID) returning a valid ACPI/PNP + * device ID, it is better to make it look less attractive here, so that + * the other device with the same _ADR value (that may not have a valid + * device ID) can be matched going forward. [This means a second spec + * violation in a row, so whatever we do here is best effort anyway.] + */ + return sta_present && list_empty(&adev->pnp.ids) ? + FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE; } struct acpi_device *acpi_find_child_device(struct acpi_device *parent, diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 219b90b..08b3ca0 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -185,7 +185,6 @@ typedef int (*acpi_ec_query_func) (void *data); int acpi_ec_init(void); int acpi_ec_ecdt_probe(void); int acpi_ec_dsdt_probe(void); -int acpi_ec_ecdt_start(void); void acpi_ec_block_transactions(void); void acpi_ec_unblock_transactions(void); int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c index 6d7ce6e..5e18ccf 100644 --- a/drivers/acpi/ioapic.c +++ b/drivers/acpi/ioapic.c @@ -45,6 +45,12 @@ static acpi_status setup_res(struct acpi_resource *acpi_res, void *data) struct resource *res = data; struct resource_win win; + /* + * We might assign this to 'res' later, make sure all pointers are + * cleared before the resource is added to the global list + */ + memset(&win, 0, sizeof(win)); + res->flags = 0; if (acpi_dev_filter_resource_type(acpi_res, IORESOURCE_MEM)) return AE_OK; diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 9ef3941..f3bc901 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -2945,6 +2945,8 @@ static struct acpi_driver acpi_nfit_driver = { static __init int nfit_init(void) { + int ret; + BUILD_BUG_ON(sizeof(struct acpi_table_nfit) != 40); BUILD_BUG_ON(sizeof(struct acpi_nfit_system_address) != 56); BUILD_BUG_ON(sizeof(struct acpi_nfit_memory_map) != 48); @@ -2972,8 +2974,14 @@ static __init int nfit_init(void) return -ENOMEM; nfit_mce_register(); + ret = acpi_bus_register_driver(&acpi_nfit_driver); + if (ret) { + nfit_mce_unregister(); + destroy_workqueue(nfit_wq); + } + + return ret; - return acpi_bus_register_driver(&acpi_nfit_driver); } static __exit void nfit_exit(void) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index dd3786a..cf725d5 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2051,7 +2051,6 @@ int __init acpi_scan_init(void) acpi_gpe_apply_masked_gpes(); acpi_update_all_gpes(); - acpi_ec_ecdt_start(); acpi_scan_initialized = true; |