[PATCH] arm64/entry: Mask DAIF in cpu_switch_to(), call_on_irq_stack()

[Will Deacon]

On Fri, 18 Jul 2025 15:28:14 +0100, Ada Couprie Diaz wrote:
> `cpu_switch_to()` and `call_on_irq_stack()` manipulate SP to change
> to different stacks along with the Shadow Call Stack if it is enabled.
> Those two stack changes cannot be done atomically and both functions
> can be interrupted by SErrors or Debug Exceptions which, though unlikely,
> is very much broken : if interrupted, we can end up with mismatched stacks
> and Shadow Call Stack leading to clobbered stacks.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64/entry: Mask DAIF in cpu_switch_to(), call_on_irq_stack()
      https://git.kernel.org/arm64/c/d42e6c20de61

Cheers,
-- 
Will

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