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[SRU,Bionic,Cosmic,0/1] UBUNTU: SAUCE: cpuidle/powernv : init all present cpus for deep states

Message ID cover.1526924517.git.joseph.salisbury@canonical.com
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Series UBUNTU: SAUCE: cpuidle/powernv : init all present cpus for deep states | expand

Message

Joseph Salisbury May 23, 2018, 5:32 p.m. UTC 
BugLink: http://bugs.launchpad.net/bugs/1771780

== SRU Justification ==
During testing, IBM found that cpupower idle-info is not listing stop4 and 
stop5 idle states when all CORES are guarded.  A patch has been
submitted upstream by IBM.  However, the patch has not landed in
linux-next or mainline as of yet.  For that reason, this SRU request is
being sent as a SAUCE patch request.


== Fix ==
UBUNTU: SAUCE: cpuidle/powernv : init all present cpus for deep states

== Regression Potential ==
Low.  Limited to powerpc.

== 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.

Akshay Adiga (1):
  UBUNTU: SAUCE: cpuidle/powernv : init all present cpus for deep states

 arch/powerpc/platforms/powernv/idle.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Khalid Elmously June 7, 2018, 10:04 p.m. UTC | #1 
Applied to Bionic


On 2018-05-23 13:32:59 , Joseph Salisbury wrote:
> BugLink: http://bugs.launchpad.net/bugs/1771780
> 
> == SRU Justification ==
> During testing, IBM found that cpupower idle-info is not listing stop4 and 
> stop5 idle states when all CORES are guarded.  A patch has been
> submitted upstream by IBM.  However, the patch has not landed in
> linux-next or mainline as of yet.  For that reason, this SRU request is
> being sent as a SAUCE patch request.
> 
> 
> == Fix ==
> UBUNTU: SAUCE: cpuidle/powernv : init all present cpus for deep states
> 
> == Regression Potential ==
> Low.  Limited to powerpc.
> 
> == 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.
> 
> Akshay Adiga (1):
>   UBUNTU: SAUCE: cpuidle/powernv : init all present cpus for deep states
> 
>  arch/powerpc/platforms/powernv/idle.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> -- 
> 2.7.4
> 
> 
> -- 
> kernel-team mailing list
> kernel-team@lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
Thadeu Lima de Souza Cascardo June 26, 2018, 2:52 p.m. UTC | #2 
Applied to unstable master branch, but as a cherry-pick of
ac9816dcbab53c57bcf1d7b15370b08f1e284318 ("powerpc/powernv/cpuidle: Init all
present cpus for deep states"), as it went upstream.

Thanks.
Cascardo.

Applied-to: unstable/master