[PATCH v3 3/3] arm64: kprobe: disable probe of fault prone ptrauth instruction

[Mark Brown]

On Mon, Jun 22, 2020 at 03:40:26PM +0100, Dave Martin wrote:

> Since stepping on older hardware is safe, we could make this conditional
> based on cpufeatures.  It hardly seems worth it, though.

It might be worth it if we had a data structure that mapped the HINTs
onto the supported features in the system, but that's definitely a
separate thing.
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