On Wed, Oct 21, 2015 at 01:47:49PM +0200, Geert Uytterhoeven wrote: > On Thu, Sep 24, 2015 at 11:32 AM, Yang Yingliang > <[email protected]> wrote: > > When cpu is disabled, all irqs will be migratged to another cpu. > > In some cases, a new affinity is different, the old affinity need > > to be updated and if irq_set_affinity's return value is > > IRQ_SET_MASK_OK_DONE, > > the old affinity can not be updated. Fix it by using irq_do_set_affinity. > > > > And migrating interrupts is a core code matter, so use the generic > > function irq_migrate_all_off_this_cpu() to migrate interrupts in > > kernel/irq/migration.c. > > > > Cc: Jiang Liu <[email protected]> > > Cc: Thomas Gleixner <[email protected]> > > Cc: Marc Zyngier <[email protected]> > > Cc: Mark Rutland <[email protected]> > > Cc: Will Deacon <[email protected]> > > Cc: Russell King - ARM Linux <[email protected]> > > Cc: Hanjun Guo <[email protected]> > > Signed-off-by: Yang Yingliang <[email protected]> > > --- > > arch/arm/Kconfig | 1 + > > arch/arm/include/asm/irq.h | 1 - > > arch/arm/kernel/irq.c | 62 > > ---------------------------------------------- > > arch/arm/kernel/smp.c | 2 +- > > 4 files changed, 2 insertions(+), 64 deletions(-) > > > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > > index 72ad724..bffba78 100644 > > --- a/arch/arm/Kconfig > > +++ b/arch/arm/Kconfig > > @@ -1492,6 +1492,7 @@ config NR_CPUS > > config HOTPLUG_CPU > > bool "Support for hot-pluggable CPUs" > > depends on SMP > > + select GENERIC_IRQ_MIGRATION > > This causes the following warnings during s2ram on r8a7791/koelsch > (dual-core CA15):
Thanks for the report. I'll see what tonight's boot run says for my platforms. Hopefully, the author of these changes can help debug this. -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
