On Mon, May 17 2021 at 18:26, Robin Murphy wrote:
> On 2021-05-17 17:57, Nitesh Lal wrote:
> I'm not implying that there isn't a bug, or that this code ever made
> sense in the first place, just that fixing it will unfortunately be a
> bit more involved than a simple revert. This patch as-is *will* subtly
> break at least the system PMU drivers currently using
s/using/abusing/
> irq_set_affinity_hint() - those I know require the IRQ affinity to
> follow whichever CPU the PMU context is bound to, in order to meet perf
> core's assumptions about mutual exclusion.
Which driver is that?
Thanks,
tglx
