RE: [PATCH 2/4] arm64: implement support for static call trampolines

[David Laight]

From: Ard Biesheuvel
> Sent: 25 October 2021 15:32
...
> On arm64, we can only patch NOPs into branch instructions or vice
> versa, or we'd have to run the whole thing under stop_machine() to
> ensure that other cores don't fetch garbage.

Ok, I was thinking it would be safe to patch a single instruction.
Clearly you can't patch more than one without danger of 'garbage'.

	David

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