[Bug 664181] [NEW] Fixes for coretemp and pkgtemp drivers

Wed Oct 20 21:45:46 UTC 2010

Public bug reported:

As a follow on to bug 601073 which enabled the coretemp and pkgtemp drivers, the following set of commits fix up issues with the coretemp and pkgtemp drivers.

SRU Justification:

Impact:
The following commits fix some coretemp/pkgtemp bugs.  They are small resonable changes that only touch the coretemp and pkgtemp drivers respectively.

Fix:
== coretemp commits ==
fff2017354a3a9906862aabbf2a1cae5b4330e40 hwmon (coretemp): Fix build breakage if SMP is undefined
e40cc4bdfd4b89813f072f72bd9c7055814d3f0f x86/hwmon: register alternate sibling upon CPU removal
a46590533ad7b0f3f640732081d7e1658145c0ba x86/hwmon: fix initialization of coretemp
89a3fd35ba0318a7208e2c8d8ca6189f567d4a93 x86/hwmon: fix module init for hotplug-but-no-device-found case
45ff34d32a19e9008e7202ba2a7c0d0f40420228 hwmon: (coretemp) Fix harmless build warning
37713308d89f17c0f73e88b07138d6ca20bfe686 fix "hwmon: coretemp: update hotplug condition check"
6b8e8282611ea35845dcff0cb321a7d735fc3155 drivers/hwmon/coretemp.c: remove unneeded #ifdef CONFIG_HOTPLUG_CPU
851b29cb3b196cb66452ec964ab5f66c9c9cd1ed hwmon: coretemp: enable coretemp device add operation failure
0dca94baeab4a1a514841b0a4c8e3a51dfb4d5ae hwmon: coretemp: update hotplug condition check

== pkgtemp commits ==
0eae7799000cdf0c2ed596c39bfb71030809fc71 x86/hwmon: pkgtemp has no dependency on PCI
f6aeccdb96fc0555e939dd507702922f07dcbcbb x86/hwmon: fix initialization of pkgtemp
d172132f358552eabd7a7410e478ffeead445243 x86/hwmon: don't leak device attribute file from pkgtemp_probe() and pkgtemp_remove()
d9bca4358286584cc22f4261ee3a60cad01aa4d4 x86/hwmon: avoid deadlock on CPU removal in pkgtemp

Test Case: Build a test kernel with the above commits applied.  Confirm
after loading the pkgtemp and coretemp drivers we still have the ability
to dump package level thermal information.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Fixes for coretemp and pkgtemp drivers
https://bugs.launchpad.net/bugs/664181
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