linux-kernel - [PATCH 0/1] lockdep: fix warning: print_lock

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Message-Id: <20190521070808.3536-1-jhubbard@nvidia.com>
Date:   Tue, 21 May 2019 00:08:07 -0700
From:   john.hubbard@...il.com
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     John Hubbard <jhubbard@...dia.com>,
        Frederic Weisbecker <frederic@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        "Paul E . McKenney" <paulmck@...ux.vnet.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Will Deacon <will.deacon@....com>
Subject: [PATCH 0/1] lockdep: fix warning: print_lock_trace defined but not used

From: John Hubbard <jhubbard@...dia.com>

Hi,

This is a second attempt to send this. The first attempt [1]
went via mailgw.nvidia.com, and did not receive a DKIM signature,
so I think it probably got discarded by many systems.

This one goes via gmail, which is what I was using before. We'll keep
working on getting the NVIDIA outgoing email servers working
with mailing lists, but meanwhile I'm back to using "envelope"
techniques, I guess. I was hoping to use a "native" email
address, but not quite there yet. :)

Anyway, here's the original cover letter:

I ran across this minor warning while building against today's linux.git.

The proposed trivial fix leaves it a little fragile from a "what if someone
adds a new call to print_lock_trace()" point of view, but I believe that it
makes the current combination of ifdefs accurate, anyway.

[1] https://lkml.org/lkml/2019/5/19/60

Cc: Frederic Weisbecker <frederic@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Will Deacon <will.deacon@....com>

John Hubbard (1):
  lockdep: fix warning: print_lock_trace defined but not used

 kernel/locking/lockdep.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.21.0