linux-kernel - Re: [PATCH 2/2] x86: make __get_wchan() use arch_stack

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Date:   Wed, 12 Apr 2023 15:15:33 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...nel.org>
Cc:     Qi Zheng <zhengqi.arch@...edance.com>, keescook@...omium.org,
        dave.hansen@...ux.intel.com, bp@...en8.de, mingo@...hat.com,
        tglx@...utronix.de, rostedt@...dmis.org, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] x86: make __get_wchan() use arch_stack_walk()

On Fri, Apr 07, 2023 at 10:08:22PM -0700, Josh Poimboeuf wrote:
> On Thu, Mar 30, 2023 at 04:15:52PM +0800, Qi Zheng wrote:
> > Make __get_wchan() use arch_stack_walk() directly to
> > avoid open-coding of unwind logic.
> > 
> > Signed-off-by: Qi Zheng <zhengqi.arch@...edance.com>
> 
> Can we just have a shared version of __get_wchan() for all
> CONFIG_ARCH_STACKWALK arches?

Didn't I do that a while back ? I can't seem to actually find the
patch-set though :/