[PATCH] powerpc/irq: Allow softirq to hardirq stack transition

[Michael Ellerman]

On Thu, 30 Nov 2023 23:50:45 +1100, Michael Ellerman wrote:
> Allow a transition from the softirq stack to the hardirq stack when
> handling a hardirq. Doing so means a hardirq received while deep in
> softirq processing is less likely to cause a stack overflow of the
> softirq stack.
> 
> Previously it wasn't safe to do so because irq_exit() (which initiates
> softirq processing) was called on the hardirq stack.
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/irq: Allow softirq to hardirq stack transition
      https://git.kernel.org/powerpc/c/4eb20bf34ea296f648971a8528e32cd80efcbe89

cheers