On Mon, May 09, 2022 at 11:16:10AM -0300, Guilherme G. Piccoli wrote:

On 27/04/2022 19:49, Guilherme G. Piccoli wrote:

quoted

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@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>

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@linux.ibm.com>