Hi,
while double checking whether this on is needed for 3.12 (which it is not),
I realized that this easy patch, fixing a potential divide by zero bug,
patches nicely with only line offset into 4.1 and 3.18 latest stable kernel
branches.
So you might want to consider taking this one.
commit 7180dddf7c32c49975c7e7babf2b60ed450cb760
Author: Prarit Bhargava <prarit@xxxxxxxxxx>
Date: Mon Jun 15 13:43:29 2015 -0400
intel_pstate: Fix overflow in busy_scaled due to long delay
The kernel may delay interrupts for a long time which can result in timers
being delayed. If this occurs the intel_pstate driver will crash with a
divide by zero error:
divide error: 0000 [#1] SMP
...
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