linux-toradex.git/drivers/hwmon/coretemp.c, branch v3.6.1

hwmon: (coretemp) Use get_online_cpus to avoid races involving CPU hotplug

2012-09-23T18:27:32+00:00

coretemp_init loops with for_each_online_cpu, adding platform_devices
and sysfs interfaces, then calls register_hotcpu_notifier.  There is a
race if a CPU is offlined or onlined after the loop, but before
register_hotcpu_notifier.  The race might result in the absence of a
platform_device+sysfs interface for an online CPU, or the presence of
a platform_device+sysfs interface for an offline CPU.  A similar race
occurs during coretemp_exit, after the module calls
unregister_hotcpu_notifier, but before it unregisters all devices, a
CPU might offline and a device for an offline CPU will exist for a
short while.

This fix surrounds for_each_online_cpu and register_hotcpu_notifier
with get_online_cpus+put_online_cpus; and surrounds
unregister_hotcpu_notifier and device unregistering with
get_online_cpus+put_online_cpus.

Build tested.

Signed-off-by: Silas Boyd-Wickizer 
Signed-off-by: Jean Delvare

sections: Fix section conflicts in drivers/hwmon

2012-08-18T23:17:43+00:00

Signed-off-by: Andi Kleen 
Signed-off-by: Guenter Roeck

hwmon: struct x86_cpu_id arrays can be __initconst

2012-07-30T09:33:00+00:00

... as being referenced from __init code only.

Signed-off-by: Jan Beulich 
Signed-off-by: Jean Delvare

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-06-29T17:29:54+00:00

Pull x86 fixes from Ingo Molnar.

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, cpufeature: Remove stray %s, add -w to mkcapflags.pl
  x86, cpufeature: Catch duplicate CPU feature strings
  x86, cpufeature: Rename X86_FEATURE_DTS to X86_FEATURE_DTHERM
  x86: Fix kernel-doc warnings
  x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery

x86, cpufeature: Rename X86_FEATURE_DTS to X86_FEATURE_DTHERM

2012-06-25T16:01:15+00:00

It makes sense to label "Digital Thermal Sensor" as "DTS", but
unfortunately the string "dts" was already used for "Debug Store", and
/proc/cpuinfo is a user space ABI.

Therefore, rename this to "dtherm".

This conflict went into mainline via the hwmon tree without any x86
maintainer ack, and without any kind of hint in the subject.

    a4659053 x86/hwmon: fix initialization of coretemp

Reported-by: Jean Delvare 
Link: http://lkml.kernel.org/r/4FE34BCB.5050305@linux.intel.com
Cc: Jan Beulich 
Cc:  v2.6.36..v3.4
Signed-off-by: H. Peter Anvin

hwmon: (coretemp) Drop needless initialization

2012-06-17T16:05:06+00:00

The value is overridden a few lines later.

Signed-off-by: Jean Delvare 
Acked-by: Guenter Roeck

hwmon: (coretemp) Improve support for TjMax detection on Atom CPUs

2012-06-17T16:05:05+00:00

Atom CPUs don't have a register to retrieve TjMax. Detection so far was
incomplete. Use the X86 model ID to improve it.

Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models

2012-06-17T16:05:05+00:00

Document the Atom series D2000 and N2000 (Cedar Trail) as being supported.
List and set TjMax for those series.

Cc: Fenghua Yu 
Cc: "R, Durgadoss" 
Signed-off-by: Guenter Roeck 
Signed-off-by: Jean Delvare

hwmon: (coretemp) Improve support of recent Atom CPU models

2012-06-17T16:05:05+00:00

Document the new Atom series (Tunnel Creek and Medfield) as being
supported, and list TjMax for the Atom E600 series.

Also enable the Atom tjmax heuristic for these Atom CPU models.

Signed-off-by: Jean Delvare 
Reviewed-by: Guenter Roeck 
Cc: Alexander Stein 
Cc: Fenghua Yu 
Cc: "R, Durgadoss"

hwmon: (coretemp) Increase CPU core limit

2012-05-01T16:16:14+00:00

CPU core ID is used to index the core_data[] array. The core ID is, however, not
sequential; 10-core CPUS can have a core ID as high as 25. Increase the limit to
32 to be able to deal with current CPUs.

Signed-off-by: Guenter Roeck 
Cc: stable@vger.kernel.org # 3.0+
Acked-by: Jean Delvare 
Acked-by: Durgadoss R