linux-kernel - Re: [PATCH] x86/ibt: Implement FineIBT

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Date:   Wed, 19 Oct 2022 09:29:58 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...nel.org>
Cc:     x86@...nel.org, Kees Cook <keescook@...omium.org>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Joao Moreira <joao@...rdrivepizza.com>,
        linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [PATCH] x86/ibt: Implement FineIBT

On Tue, Oct 18, 2022 at 04:38:54PM -0700, Josh Poimboeuf wrote:

> Can the objtool changes be moved to a separate patch?

Yep, will do.

> The RFC was 11 patches, is it now much smaller because of the new
> dependencies?  The RFC had some eBPF changes and a test module, are
> those no longer needed?

Yeah; it's all become much simpler with the infrastructure we get from
the call-depth-tracking nonsense.