On Thu, Dec 15, 2022 at 05:31:24PM +0800, Hsin-Yi Wang wrote: > On Thu, Dec 15, 2022 at 5:22 PM Johan Hovold <johan+linaro@xxxxxxxxxx> wrote: > > > > Parallel probing (e.g. due to asynchronous probing) of devices that > > share interrupts can currently result in two mappings for the same > > hardware interrupt to be created. > > > > This series fixes this mapping race and clean up the irqdomain locking > > so that in the end the global irq_domain_mutex is only used for managing > > the likewise global irq_domain_list, while domain operations (e.g. > > IRQ allocations) use per-domain (hierarchy) locking. > Tested-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx> > > The series solves a race issue when having non-populated 2nd source > components that share the same irq on ARM devices: > Previously we would see > [ 0.476357] irq: type mismatch, failed to map hwirq-11 for pinctrl@10005000! > and the component failed to probe. Thanks again for testing. I just sent a v4 adding a couple of clarifying comments to the final patch. Johan
