Re: [patch 00/38] x86/retbleed: Call depth tracking mitigation

Peter Zijlstra
2022-07-18T23:52:49Z

On Mon, Jul 18, 2022 at 03:34:51PM -0700, Linus Torvalds wrote:

> I think the main cause is that the ACPI code builds with
>
> ccflags-y := -Os -D_LINUX -DBUILDING_ACPICA
>
> and that '-Os' will disable all function alignment. I think there's a
> few other places that do that too.

Urgh, that's -Ostupid, right?