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Date:   Tue, 7 Apr 2020 19:27:39 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Josh Poimboeuf <jpoimboe@redhat.com>
Cc:     Alexandre Chartre <alexandre.chartre@oracle.com>, x86@kernel.org,
        linux-kernel@vger.kernel.org, jthierry@redhat.com,
        tglx@linutronix.de
Subject: Re: [PATCH V2 9/9] x86/speculation: Remove all
 ANNOTATE_NOSPEC_ALTERNATIVE directives
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On Tue, Apr 07, 2020 at 11:28:38AM -0500, Josh Poimboeuf wrote:
> Again, we should warn on stack changes inside alternatives, and then
> look at converting RSB and retpolines to use static branches so they
> have deterministic stacks.

I don't think we need static brancher, we should just out-of-line the
whole thing.

Let me sort this CFI error Thomas is getting and then I'll attempt a
patch along the lines I outlined in earlier emails.