linux-kernel - Re: [PATCH] locking/lockdep: Fix lock IRQ usage initialization bug

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Message-ID: <1560180947.6132.67.camel@lca.pw>
Date:   Mon, 10 Jun 2019 11:35:47 -0400
From:   Qian Cai <cai@....pw>
To:     Yuyang Du <duyuyang@...il.com>, peterz@...radead.org,
        will.deacon@....com, mingo@...nel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] locking/lockdep: Fix lock IRQ usage initialization bug

On Mon, 2019-06-10 at 13:52 +0800, Yuyang Du wrote:
> The commit:
> 
>   091806515124b20 ("locking/lockdep: Consolidate lock usage bit
> initialization")
> 
> misses marking LOCK_USED flag at IRQ usage initialization when
> CONFIG_TRACE_IRQFLAGS
> or CONFIG_PROVE_LOCKING is not defined. Fix it.
> 
> Reported-by: Qian Cai <cai@....pw>
> Signed-off-by: Yuyang Du <duyuyang@...il.com>

It works fine.