linux-kernel - Re: [PATCH v2] LOCKDEP: reduce LOCKDEP dependency list

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Message-ID: <YKyiZBAGcbGMEjTc@hirez.programming.kicks-ass.net>
Date:   Tue, 25 May 2021 09:08:20 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Julian Braha <julianbraha@...il.com>
Cc:     linux-kernel@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>,
        linux-xtensa@...ux-xtensa.org,
        Johannes Berg <johannes@...solutions.net>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        linux-um@...ts.infradead.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH v2] LOCKDEP: reduce LOCKDEP dependency list

On Mon, May 24, 2021 at 11:31:22PM -0400, Julian Braha wrote:
> Hi Randy,
> 
> It seems I introduced a new unmet dependency bug
> in my attempt to fix one :/
> 
> Anyway, I don't see why the dependency on FRAME_POINTER
> was necessary in the first place, so LGTM.

It might have been an attempt at ensuring sane backtraces; but I didn't
dig into the history of the thing. Either way around, it's fairly
out-dated if that was indeed the case.