linux-kernel - Re: [PATCH v3 32/59] objtool: Allow STT_NOTYPE -> STT

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Message-ID: <20220923173659.7mdnyjnd7iiljdn2@desk>
Date:   Fri, 23 Sep 2022 10:36:59 -0700
From:   Pawan Gupta <pawan.kumar.gupta@...ux.intel.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
        x86@...nel.org, Linus Torvalds <torvalds@...ux-foundation.org>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        Andrew Cooper <Andrew.Cooper3@...rix.com>,
        Johannes Wikner <kwikner@...z.ch>,
        Alyssa Milburn <alyssa.milburn@...ux.intel.com>,
        Jann Horn <jannh@...gle.com>, "H.J. Lu" <hjl.tools@...il.com>,
        Joao Moreira <joao.moreira@...el.com>,
        Joseph Nuzman <joseph.nuzman@...el.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Juergen Gross <jgross@...e.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        K Prateek Nayak <kprateek.nayak@....com>,
        Eric Dumazet <edumazet@...gle.com>,
        antonio.gomez.iglesias@...ux.intel.com,
        Daniel Sneddon <daniel.sneddon@...ux.intel.com>
Subject: Re: [PATCH v3 32/59] objtool: Allow STT_NOTYPE -> STT_FUNC+0
 tail-calls

On Fri, Sep 23, 2022 at 04:35:13PM +0200, Peter Zijlstra wrote:
>On Thu, Sep 22, 2022 at 03:15:10PM +0200, Peter Zijlstra wrote:
>
>> Ho-Humm.. let me find a non hacky solution.
>
>I've ended up here:
>
>  https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?h=call-depth-tracking&id=c2a8b8187418956af92d2d954ee4574f87f5e188
>  https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?h=call-depth-tracking&id=c74976b9664fb6a1856d85ce246d84db3fd2c2cd
>
>which is arguably quite a lot of work for something relatively minor,
>but I do think it leaves us in a better place.
>
>Combo patch below..

Confirming that the patch fixes the warning. Thanks.