Re: [PATCH 22/30] panic: Introduce the panic post-reboot notifier list

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On Mon, May 09, 2022 at 11:16:10AM -0300, Guilherme G. Piccoli wrote:
> On 27/04/2022 19:49, Guilherme G. Piccoli wrote:
> > Currently we have 3 notifier lists in the panic path, which will
> > be wired in a way to allow the notifier callbacks to run in
> > different moments at panic time, in a subsequent patch.
> > 
> > But there is also an odd set of architecture calls hardcoded in
> > the end of panic path, after the restart machinery. They're
> > responsible for late time tunings / events, like enabling a stop
> > button (Sparc) or effectively stopping the machine (s390).
> > 
> > This patch introduces yet another notifier list to offer the
> > architectures a way to add callbacks in such late moment on
> > panic path without the need of ifdefs / hardcoded approaches.
> > 
> > Cc: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
> > Cc: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>
> > Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> > Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
> > Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
> > Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
> > Signed-off-by: Guilherme G. Piccoli <gpiccoli@xxxxxxxxxx>
> 
> Hey S390/SPARC folks, sorry for the ping!
> 
> Any reviews on this V1 would be greatly appreciated, I'm working on V2
> and seeking feedback in the non-reviewed patches.

Sorry, missed that this is quite s390 specific. So, yes, this looks
good to me and nice to see that one of the remaining CONFIG_S390 in
common code will be removed!

For the s390 bits:
Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx>



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