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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-14 12:50:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-14 12:50:05 -0700 |
| commit | b41d037a1fd32d6535a2eef877b10f8deefeaf70 (patch) | |
| tree | daecbd26a3e80545f9d3bab99e07395aaf1b9678 /drivers/acpi/acpi_pad.c | |
| parent | ef98988ba369da88bab8a4d457407e71bbe160fa (diff) | |
| parent | 522533f338f38e15106d5f58901f38fe7bd6a7d8 (diff) | |
| download | linux-b41d037a1fd32d6535a2eef877b10f8deefeaf70.tar.gz linux-b41d037a1fd32d6535a2eef877b10f8deefeaf70.tar.bz2 linux-b41d037a1fd32d6535a2eef877b10f8deefeaf70.zip | |
Merge tag 'acpi-extra-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"This includes a couple of fixes needed after recent changes, two ACPI
driver fixes (fan and "Processor Aggregator"), an update of the ACPI
device properties handling code and a new MAINTAINERS entry for ACPI
on ARM64.
Specifics:
- Fix an unused function warning that started to appear after recent
changes in the ACPI EC driver (Eric Biggers).
- Fix the KERN_CONT usage in acpi_os_vprintf() that has become
(particularly) annoying recently (Joe Perches).
- Fix the fan status checking in the ACPI fan driver to avoid
returning incorrect error codes sometimes (Srinivas Pandruvada).
- Fix the ACPI Processor Aggregator driver (PAD) to always let the
special processor_aggregator driver from Xen take over when running
as Xen dom0 (Juergen Gross).
- Update the handling of reference device properties in ACPI by
allowing empty rows ("holes") to appear in reference property lists
(Mika Westerberg).
- Add a new MAINTAINERS entry for ACPI on ARM64 (Lorenzo Pieralisi)"
* tag 'acpi-extra-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
acpi_os_vprintf: Use printk_get_level() to avoid unnecessary KERN_CONT
ACPI / PAD: don't register acpi_pad driver if running as Xen dom0
ACPI / property: Allow holes in reference properties
MAINTAINERS: Add ARM64-specific ACPI maintainers entry
ACPI / EC: Fix unused function warning when CONFIG_PM_SLEEP=n
ACPI / fan: Fix error reading cur_state
Diffstat (limited to 'drivers/acpi/acpi_pad.c')
| -rw-r--r-- | drivers/acpi/acpi_pad.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index 8ea8211b2d58..eb76a4c10dbf 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -26,6 +26,7 @@ #include <linux/slab.h> #include <linux/acpi.h> #include <asm/mwait.h> +#include <xen/xen.h> #define ACPI_PROCESSOR_AGGREGATOR_CLASS "acpi_pad" #define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator" @@ -477,6 +478,10 @@ static struct acpi_driver acpi_pad_driver = { static int __init acpi_pad_init(void) { + /* Xen ACPI PAD is used when running as Xen Dom0. */ + if (xen_initial_domain()) + return -ENODEV; + power_saving_mwait_init(); if (power_saving_mwait_eax == 0) return -EINVAL; |