Re: [PATCH 0/3] genirq: Make irq_cpu_{on,off}line() an Octeon-special

From: Serge Semin
Date: Fri Oct 22 2021 - 09:59:33 EST


On Fri, Oct 22, 2021 at 04:53:56PM +0300, Serge Semin wrote:
> Hello Marc
>
> On Thu, Oct 21, 2021 at 06:04:11PM +0100, Marc Zyngier wrote:
> > Now that Florian has updated BMIPS to not rely on irq_cpu_offline [1],
> > it is pretty tempting to totally get of this misfeature. We can't
> > really do that because Octeon uses it like crazy, but the couple of
> > other users are easy to convert.
> >
> > Once this is done, these helpers are hidden behind a config symbol
> > that depends on the Octeon platform being selected. When Octeon is
> > finally removed from the tree, we'll be able to drop this as well.
>
> The whole series has been tested in kernel 5.13 running on
> Baikal-T1 SoC (2x P5600 cores) with MIPS GIC used as the clock source
> and clock event device.

> Acked-by: Serge Semin <fancer.lancer@xxxxxxxxx>

Ah, sorry. copy-pasted a wrong tag. Tested-by of course:
Tested-by: Serge Semin <fancer.lancer@xxxxxxxxx>

-Sergey

>
> -Sergey
>
> >
> >
> > Marc Zyngier (3):
> > MIPS: loongson64: Drop call to irq_cpu_offline()
> > irqchip/mips-gic: Get rid of the reliance on irq_cpu_online()
> > genirq: Hide irq_cpu_{on,off}line() behind a deprecated option
> >
> > arch/mips/loongson64/smp.c | 1 -
> > drivers/irqchip/irq-mips-gic.c | 37 ++++++++++++++++++++++++----------
> > include/linux/irq.h | 5 ++++-
> > kernel/irq/Kconfig | 7 +++++++
> > kernel/irq/chip.c | 2 ++
> > 5 files changed, 39 insertions(+), 13 deletions(-)
> >
> > --
> > 2.30.2
> >