On Wed, 2017-02-08 at 21:02 +1100, Michael Ellerman wrote: > Benjamin Herrenschmidt <b...@kernel.crashing.org> writes: > > > migrate_irqs() is used by some platforms to migrate interrupts > > away from a CPU about to be offlined. > > > > The current implementation had various issues such as not taking > > the descriptor lock before manipulating it. > > ... and not checking for a NULL chip (but presumably that's never > happened), and always calling irq_set_affinity() even for IRQs not on > the CPU. > > But, any reason we can't use irq_migrate_all_off_this_cpu() ? > Which is in generic code.
Nope, I didn't notice it. I'll give that a spin. Cheers, Ben.
