On 2020-06-17 10:20, Cornelia Huck wrote:
On Mon, 15 Jun 2020 11:31:53 +0200 Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote: Subject: "s390: I/O interrupt registration" ?
yes, better.
Let's make it possible to add and remove a custom io interrupt handler, that can be used instead of the normal one. Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx> Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> Reviewed-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
...snip...
+int unregister_io_int_func(void (*f)(void)) +{ + if (io_int_func != f) + return -1;Not sure if we really need these checks, but they don't hurt, either.
Not sure neither but I prefer to let it here to avoid more discussions since already reviewed-by...
+ io_int_func = NULL; + return 0; +} + void handle_svc_int(void) { report_abort("Unexpected supervisor call interrupt: on cpu %d at %#lx",Acked-by: Cornelia Huck <cohuck@xxxxxxxxxx>
Thanks, Pierre -- Pierre Morel IBM Lab Boeblingen
