[PATCH] powerpc: offline CPU in stop_this_cpu

[Michael Ellerman]

On Wed, 23 Jun 2021 14:12:45 +1000, Nicholas Piggin wrote:
> printk_safe_flush_on_panic() has special lock breaking code for the
> case where we panic()ed with the console lock held. It relies on
> panic IPI causing other CPUs to mark themselves offline.
> 
> Do as most other architectures do.
> 
> This effectively reverts commit de6e5d38417e ("powerpc: smp_send_stop do
> not offline stopped CPUs"), unfortunately it may result in some false
> positive warnings, but the alternative is more situations where we can
> crash without getting messages out.

Applied to powerpc/next.

[1/1] powerpc: offline CPU in stop_this_cpu
      https://git.kernel.org/powerpc/c/bab26238bbd44d5a4687c0a64fd2c7f2755ea937

cheers