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linux-stable/drivers/acpi
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Arnd Bergmann fe8c470ab8 ACPI / power: Avoid maybe-uninitialized warning 
gcc -O2 cannot always prove that the loop in acpi_power_get_inferred_state()
is enterered at least once, so it assumes that cur_state might not get
initialized:

drivers/acpi/power.c: In function 'acpi_power_get_inferred_state':
drivers/acpi/power.c:222:9: error: 'cur_state' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This sets the variable to zero at the start of the loop, to ensure that
there is well-defined behavior even for an empty list. This gets rid of
the warning.

The warning first showed up when the -Os flag got removed in a bug fix
patch in linux-4.11-rc5.

I would suggest merging this addon patch on top of that bug fix to avoid
introducing a new warning in the stable kernels.

Fixes: 61b79e16c6 (ACPI: Fix incompatibility with mcount-based function graph tracing)
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 		2017-04-19 22:46:10 +02:00
..
acpica Revert "ACPICA: Resources: Not a valid resource if buffer length too long" 2017-04-13 18:23:46 +02:00
apei ACPI / APEI: Add missing synchronize_rcu() on NOTIFY_SCI removal 2017-03-28 23:43:42 +02:00
arm64 arm64 updates for 4.11: 2017-02-22 10:46:44 -08:00
dptf ACPI / platform: Add support for build-in properties 2016-11-10 00:30:29 +01:00
nfit acpi, nfit, libnvdimm: fix interleave set cookie calculation (64-bit comparison) 2017-03-27 21:53:38 -07:00
pmic
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Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2016-12-14 11:12:25 -08:00
Makefile ACPI: Fix incompatibility with mcount-based function graph tracing 2017-03-28 23:54:43 +02:00
ac.c
…
acpi_amba.c
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acpi_apd.c Merge branches 'acpi-soc', 'acpi-battery', 'acpi-video', 'acpi-cppc' and 'acpi-apei' 2016-12-12 20:48:01 +01:00
acpi_cmos_rtc.c
…
acpi_configfs.c
…
acpi_dbg.c
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acpi_extlog.c x86/ras, EDAC, acpi: Assign MCE notifier handlers a priority 2017-01-24 09:14:57 +01:00
acpi_ipmi.c acpi:ipmi: Make IPMI user handler const 2017-02-09 09:10:05 -06:00
acpi_lpat.c
…
acpi_lpss.c pwm: Changes for v4.11-rc1 2017-03-01 09:46:02 -08:00
acpi_memhotplug.c
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acpi_pad.c sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h> 2017-03-02 08:42:27 +01:00
acpi_platform.c ACPI: Do not create a platform_device for IOAPIC/IOxAPIC 2017-03-28 23:37:19 +02:00
acpi_pnp.c
…
acpi_processor.c acpi/processor: Check for duplicate processor ids at hotplug time 2017-03-11 14:41:20 +01:00
acpi_video.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
acpi_watchdog.c ACPI / watchdog: Print out error number when device creation fails 2016-12-26 23:21:56 +01:00
battery.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
battery.h
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bgrt.c efi/x86: Move the EFI BGRT init code to early init code 2017-02-01 08:45:46 +01:00
blacklist.c ACPI / blacklist: Make Dell Latitude 3350 ethernet work 2016-11-16 23:01:29 +01:00
bus.c Revert "x86/acpi: Set persistent cpuid <-> nodeid mapping when booting" 2017-03-11 14:41:18 +01:00
button.c ACPI / button: Remove lid_init_state=method mode 2017-01-31 17:20:45 +01:00
cm_sbs.c
…
container.c
…
cppc_acpi.c ACPI / CPPC: Fix per-CPU pointer management in acpi_cppc_processor_probe() 2016-12-12 23:52:34 +01:00
custom_method.c
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debugfs.c
…
device_pm.c
…
device_sysfs.c ACPI / property: Hierarchical properties support update 2016-11-24 02:43:47 +01:00
dock.c
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ec.c ACPI / EC: Use busy polling mode when GPE is not enabled 2017-01-30 12:12:52 +01:00
ec_sys.c
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event.c genetlink: mark families as __ro_after_init 2016-10-27 16:16:09 -04:00
evged.c
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fan.c ACPI / fan: Fix error reading cur_state 2016-10-10 02:20:43 +02:00
glue.c ACPI / scan: Prefer devices without _HID for _ADR matching 2017-04-01 00:55:22 +02:00
hed.c
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internal.h x86/ioapic: Split IOAPIC hot-removal into two steps 2017-03-01 10:51:41 +01:00
ioapic.c ACPI: ioapic: Clear on-stack resource before using it 2017-03-28 23:31:45 +02:00
irq.c ACPI: Add support for ResourceSource/IRQ domain mapping 2017-02-03 15:03:48 +00:00
numa.c ACPI/NUMA: Do not map pxm to node when NUMA is turned off 2016-12-15 11:32:32 +01:00
nvs.c
…
osi.c
…
osl.c ACPICA: Hardware: Add sleep register hooks 2017-01-02 23:18:41 +01:00
pci_irq.c
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pci_link.c ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs 2016-10-24 14:18:14 +02:00
pci_mcfg.c PCI/ACPI: Fix bus range comparison in pci_mcfg_lookup() 2017-01-12 14:32:09 -06:00
pci_root.c x86/ioapic: Split IOAPIC hot-removal into two steps 2017-03-01 10:51:41 +01:00
pci_slot.c
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power.c ACPI / power: Avoid maybe-uninitialized warning 2017-04-19 22:46:10 +02:00
proc.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
processor_core.c Revert"x86/acpi: Enable MADT APIs to return disabled apicids" 2017-03-11 14:41:18 +01:00
processor_driver.c Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 19:43:08 -07:00
processor_idle.c x86/amd: Simplify AMD E400 aware idle routine 2016-12-09 21:23:21 +01:00
processor_pdc.c
…
processor_perflib.c ACPI: processor_perflib: Simplify code and stop using CPUFREQ_START 2017-02-04 00:05:29 +01:00
processor_thermal.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
processor_throttling.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
property.c ACPI / property: Hierarchical properties support update 2016-11-24 02:43:47 +01:00
reboot.c
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resource.c scripts/spelling.txt: add "overrided" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
sbs.c
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sbshc.c
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sbshc.h
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scan.c ACPI / scan: Set the visited flag for all enumerated devices 2017-04-13 04:42:18 +02:00
sleep.c ACPI: save NVS memory for Lenovo G50-45 2017-01-31 22:46:59 +01:00
sleep.h
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spcr.c tty: acpi/spcr: QDF2400 E44 checks for wrong OEM revision 2017-03-14 10:48:54 +08:00
sysfs.c ACPI / sysfs: Provide quirk mechanism to prevent GPE flooding 2016-12-26 23:16:39 +01:00
tables.c ACPI / osl: Remove acpi_get_table_with_size()/early_acpi_os_unmap_memory() users 2016-12-21 02:36:38 +01:00
thermal.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
utils.c
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video_detect.c Revert "ACPI / video: Add force_native quirk for HP Pavilion dv6" 2017-01-25 14:04:13 +01:00
wakeup.c
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