[PATCH] powerpc/module_64: Fix livepatching for RO modules

[Joe Lawrence]

On 12/9/21 2:00 AM, Michael Ellerman wrote:
> Russell Currey <ruscur at russell.cc> writes:
>> On Tue, 2021-12-07 at 09:44 -0500, Joe Lawrence wrote:
>>> On 11/23/21 3:15 AM, Russell Currey wrote:
>>>
>>> [[ cc += livepatching list ]]
>>>
>>> Hi Russell,
>>>
>>> Thanks for writing a minimal fix for stable / backporting.  As I
>>> mentioned on the github issue [1], this avoided the crashes I
>>> reported
>>> here and over on kpatch github [2].  I wasn't sure if this is the
>>> final
>>> version for stable, but feel free to add my:
>>>
>>> Tested-by: Joe Lawrence <joe.lawrence at redhat.com>
>>
>> Thanks Joe, as per the discussions on GitHub I think we're fine to use
>> this patch for a fix for stable (unless there's new issues found or
>> additional community feedback etc).
> 
> Hmm, I read the GitHub discussion as being that you were going to do
> another version, which is why I haven't picked this up. But I guess you
> and Christophe were talking about the non-minimal fix.
> 
> I know we want this to be minimal, but I think it should be checking
> that patch_instruction() isn't failing.
> 
> Incremental diff to do that is below. It boots OK, are you able to throw
> a livepatch test at it?
> 

No problem.  The incremental patch update tests successful.

Thanks,

-- 
Joe