[Bug 1483214] Re: ipmi_si module spams kernel log with "ipmi_si 00:05: Could not set the global enables: 0xcc."

[Stefan Bader]

SRU Justtification

Impact: The driver code changed in 3.19 to do periodic checks on irq and message settings
  commit d9b7e4f717a167610a49ceb9e5969e80146c89a8
  ipmi: Periodically check to see if irqs and messages are set right
This causes repeated error messages in the logs for certain BMCs which do not allow to disable the irq mode in the global config even when they do not support irqs.

Fix: Cherry-pick upstream commit
1e7d6a45f6b10bc48a1453bca3d829e210546571 which adds a quirk to detect
this situation and avoids touching those bits. This was done in 4.0, so
the only affected kernel is 3.19.

Testcase: With an affected BMC and without the patch, errors repeatedly
get logged. With the patch applied, there will be only a single message
in the log.

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https://bugs.launchpad.net/bugs/1483214

Title:
  ipmi_si module spams kernel log with "ipmi_si 00:05: Could not set the
  global enables: 0xcc."

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