linux-kernel - Re: [RFC][PATCH 6/6] objtool,x86: Rewrite retpoline thunk calls

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Message-ID: <20210220225100.GA5208@worktop.programming.kicks-ass.net>
Date:   Sat, 20 Feb 2021 23:51:00 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>, x86@...nel.org,
        pjt@...gle.com, mbenes@...e.cz, jgross@...e.com,
        linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 6/6] objtool,x86: Rewrite retpoline thunk calls

On Sat, Feb 20, 2021 at 11:28:02PM +0100, Peter Zijlstra wrote:
> On Sat, Feb 20, 2021 at 06:41:01PM +0100, Borislav Petkov wrote:
> > >  - I have more cases for objtool to rewrite code (I'll see if I can
> > >    rebase and post that this weekend -- no promises).
> > 
> > Oh noes.
> 
> 11 patches and one beer later, it even boots :-)
> 
> Saves more than 6k on a defconfig build.
> 
> I'll push it out to git in a bit.

https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/log/?h=locking/jump_label