[Skiboot] [PATCH v2] xscom: Do not print error message for 'chiplet offline' return values

[Vaidyanathan Srinivasan]

* Vasant Hegde <hegdevasant at linux.vnet.ibm.com> [2017-10-06 10:59:23]:

> On 10/05/2017 07:20 PM, Vaidyanathan Srinivasan wrote:
> > * Vasant Hegde <hegdevasant at linux.vnet.ibm.com> [2017-10-05 16:39:26]:
> > 
> > > xscom_read/write operations returns CHIPLET_OFFLINE when chiplet is offline.
> > > Some multicast xscom_read/write requests from HBRT results in xscom operation
> > > on offline chiplet(s) and printing below warnings in OPAL console.
> > > 
> > > [ 135.036327572,3] XSCOM: Read failed, ret = -14
> > > [ 135.092689829,3] XSCOM: Read failed, ret = -14
> > > 
> > > This results in unnecessary bugs. Hence remove error message for multicast
> > > SCOM operations.
> > 
> > Hi Vasant,
> > 
> > Can we do this in some way for broadcast xscom only?  If we suppress
> > this message we cannot see real errors with xscom reads to stopped
> > cores that result in IO error.
> 
> Yes. V1 was suppressing error message for all scom operations. But this
> patch detects and suppress error message for multicast scoms only.

Oops.  Thats right, you have taken care of this comment.

--Vaidy