[SRU][Xenial][PATCH 0/1] tty/hvc: Use opal irqchip interface if available

Joseph Salisbury joseph.salisbury at canonical.com
Wed Nov 8 21:02:21 UTC 2017

BugLink: http://bugs.launchpad.net/bugs/1728098

== SRU Justification ==
This bug is fixed by commit 00dab8187e18.  The commit updates the hvc 
driver to use the OPAL irqchip if made available by the running firmware. 
If it is not present, the driver falls back to the existing OPAL event number.   

Commit 00dab8187e18 was added to mainline is v4.8-rc1, so it is not needed in 
releases newer than Xenial.  The commit is a clean cherry pick in Xenial.

== Fix ==
commit 00dab8187e182da41122f66c207707b192509df4
Author: Sam Mendoza-Jonas <sam at mendozajonas.com>
Date:   Mon Jul 11 13:38:58 2016 +1000

    tty/hvc: Use opal irqchip interface if available

== Regression Potential ==
This change is specific to the hvc driver and has been in mainline since v4.8-rc1
without any issues reported.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.
Sam Mendoza-Jonas (1):
  tty/hvc: Use opal irqchip interface if available

 drivers/tty/hvc/hvc_opal.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)


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