[Bug 115321] radeon runpm falsely disabled on Clevo P170EM

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=115321

--- Comment #9 from Peter Wu <peter at lekensteyn.nl> ---
For that to work on stable v4.6 you have to revert dfc4f59d901b and
bfaddd9fc8ac. My .config and compiler generates the same (inlined) code for
both sources:

// (radeon.ko) mask & (1 << 1) => (mask >> 1) & 1
   ed828:       d1 ea                   shr    edx,1
   ed82a:       83 e2 01                and    edx,0x1
   ed82d:       88 15 00 00 00 00       mov    BYTE PTR [rip+0x0],dl

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