[Skiboot] [RFC PATCH] phb4: Make verbose EEH output less verbose

[Russell Currey]

On Tue, 2018-07-31 at 18:48 +1000, Oliver O'Halloran wrote:
> Each PHB4 component has a error status register and a set of
> component-specific registers that describe that error in more detail.
> If the status register of a component has no bits set there's not
> much
> point in dumping the error detail registers.
> 
> This patch modifies the verbose EEH dumping code so that it only
> dumps the error registers of a component if there are bits set in the
> error status register of that component. This limits the output to
> the
> registers that are actually relevant to the error that occured which
> makes interpreting the dumps slightly easier.
> 
> Signed-off-by: Oliver O'Halloran <oohall at gmail.com>
> ---
> I've been using this in my debug builds for a while, but I'm not sure
> if it's a great idea since sometimes other people want to full dump.
> It's probably fine...

This is the same thing the kernel does, I don't see any reason why we
wouldn't do it here.  The kernel also puts multiple registers on the
same line to save space, this does require looking at the code to
remember what order the regs are in but if you're decoding this stuff
that's the least of your problems so *shrug*

In any case,

Acked-by: Russell Currey <ruscur at russell.cc>