diff options
| author | Venkatesh Pallipadi <[email protected]> | 2005-10-23 20:31:00 +0000 |
|---|---|---|
| committer | Len Brown <[email protected]> | 2005-12-01 06:30:35 +0000 |
| commit | 05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8 (patch) | |
| tree | dec76975406874cf677d6391302f42a6da55ac38 /drivers/acpi/processor_idle.c | |
| parent | Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git (diff) | |
| download | kernel-05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8.tar.gz kernel-05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8.zip | |
[ACPI] Avoid BIOS inflicted crashes by evaluating _PDC only once
Linux invokes the AML _PDC method (Processor Driver Capabilities)
to tell the BIOS what features it can handle. While the ACPI
spec says nothing about the OS invoking _PDC multiple times,
doing so with changing bits seems to hopelessly confuse the BIOS
on multiple platforms up to and including crashing the system.
Factor out the _PDC invocation so Linux invokes it only once.
http://bugzilla.kernel.org/show_bug.cgi?id=5483
Signed-off-by: Venkatesh Pallipadi <[email protected]>
Signed-off-by: Len Brown <[email protected]>
Diffstat (limited to 'drivers/acpi/processor_idle.c')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 70d8a6ec0920..1915c377bfc6 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -1014,8 +1014,6 @@ int acpi_processor_power_init(struct acpi_processor *pr, } } - acpi_processor_power_init_pdc(&(pr->power), pr->id); - acpi_processor_set_pdc(pr, pr->power.pdc); acpi_processor_get_power_info(pr); /* |