linux-kernel - Re: [PATCH] ftrace: Have architectures opt-in for mcount build time sorting

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Date:   Fri, 28 Jan 2022 16:39:48 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Joe Lawrence <joe.lawrence@...hat.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Yinan Liu <yinan@...ux.alibaba.com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Sachin Sant <sachinp@...ux.ibm.com>,
        linuxppc-dev@...ts.ozlabs.org,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] ftrace: Have architectures opt-in for mcount build time
 sorting

On Fri, 28 Jan 2022 16:11:39 -0500
Joe Lawrence <joe.lawrence@...hat.com> wrote:

> The bisect finally landed on:
> 
>   72b3942a173c387b27860ba1069636726e208777 is the first bad commit
>   commit 72b3942a173c387b27860ba1069636726e208777
>   Author: Yinan Liu <yinan@...ux.alibaba.com>
>   Date:   Sun Dec 12 19:33:58 2021 +0800
> 
>       scripts: ftrace - move the sort-processing in ftrace_init
> 
> and I can confirm that your updates today in "[for-linus][PATCH 00/10]
> tracing: Fixes for 5.17-rc1" fix or avoid the issue.  I just wanted to
> add my report in case this adds any future complications for mcount
> build time sorting.  Let me know if any additional tests would be
> helpful.

Thanks for letting me know. That patch set has already landed in Linus's
tree.


-- Steve