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ACPI fixes for 5.15-rc7

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- Stop turning off unused ACPI power resources in an unknown state
    to address a regression introduced during the 5.14 cycle (Rafael
    Wysocki).
 
  - Fix an ACPI tools build issue introduced recently when the minimal
    stdarg.h was added (Miguel Bernal Marin).
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Merge tag 'acpi-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix two regressions, one related to ACPI power resources
  management and one that broke ACPI tools compilation.

  Specifics:

   - Stop turning off unused ACPI power resources in an unknown state to
     address a regression introduced during the 5.14 cycle (Rafael
     Wysocki).

   - Fix an ACPI tools build issue introduced recently when the minimal
     stdarg.h was added (Miguel Bernal Marin)"

* tag 'acpi-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: PM: Do not turn off power resources in unknown state
  ACPI: tools: fix compilation error
This commit is contained in:
Linus Torvalds 2021-10-22 09:08:08 -10:00
commit 1d4590f506
2 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/acpi/power.c
View File

@ -1035,13 +1035,8 @@ void acpi_turn_off_unused_power_resources(void)
list_for_each_entry_reverse(resource, &acpi_power_resource_list, list_node) {
mutex_lock(&resource->resource_lock);
/*
* Turn off power resources in an unknown state too, because the
* platform firmware on some system expects the OS to turn off
* power resources without any users unconditionally.
*/
if (!resource->ref_count &&
resource->state != ACPI_POWER_RESOURCE_STATE_OFF) {
resource->state == ACPI_POWER_RESOURCE_STATE_ON) {
acpi_handle_debug(resource->device.handle, "Turning OFF\n");
__acpi_power_off(resource);
}

9
include/acpi/platform/acgcc.h
View File

@ -22,9 +22,14 @@ typedef __builtin_va_list va_list;
#define va_arg(v, l) __builtin_va_arg(v, l)
#define va_copy(d, s) __builtin_va_copy(d, s)
#else
#ifdef __KERNEL__
#include <linux/stdarg.h>
#endif
#endif
#else
/* Used to build acpi tools */
#include <stdarg.h>
#endif /* __KERNEL__ */
#endif /* ACPI_USE_BUILTIN_STDARG */
#endif /* ! va_arg */
#define ACPI_INLINE __inline__