From: Peter Zijlstra <peterz@infradead.org>
To: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>,
paul@pwsan.com, linux-omap@vger.kernel.org, mingo@redhat.com,
linux-kernel@vger.kernel.org, balbi@ti.com,
linux-arm-kernel@lists.infradead.org,
Tero Kristo <t-kristo@ti.com>
Subject: Re: [PATCH 0/2] ARM: omap2+: omap_hwmod: Fix false lockdep warning
Date: Mon, 9 Feb 2015 10:23:32 +0100 [thread overview]
Message-ID: <20150209092332.GO5029@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <54D86F74.7070703@ti.com>
On Mon, Feb 09, 2015 at 10:27:32AM +0200, Peter Ujfalusi wrote:
> As I recall there is a plan to remove the hwmod static database and move it or
> generate it from DT? Not sure when and how this will be done, but will it
> affect the lockdep_set_class() way?
Yes, struct lock_class_key wants to be in static storage.
So you could still allocate a few of those statically and then use them
where appropriate, but it'd going to be more work.
The advantage of having the 1:1 relation is that any parent hierarchy
works naturally.
WARNING: multiple messages have this Message-ID (diff)
From: peterz@infradead.org (Peter Zijlstra)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/2] ARM: omap2+: omap_hwmod: Fix false lockdep warning
Date: Mon, 9 Feb 2015 10:23:32 +0100 [thread overview]
Message-ID: <20150209092332.GO5029@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <54D86F74.7070703@ti.com>
On Mon, Feb 09, 2015 at 10:27:32AM +0200, Peter Ujfalusi wrote:
> As I recall there is a plan to remove the hwmod static database and move it or
> generate it from DT? Not sure when and how this will be done, but will it
> affect the lockdep_set_class() way?
Yes, struct lock_class_key wants to be in static storage.
So you could still allocate a few of those statically and then use them
where appropriate, but it'd going to be more work.
The advantage of having the 1:1 relation is that any parent hierarchy
works naturally.
next prev parent reply other threads:[~2015-02-09 9:23 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-06 12:48 [PATCH 0/2] ARM: omap2+: omap_hwmod: Fix false lockdep warning Peter Ujfalusi
2015-02-06 12:48 ` Peter Ujfalusi
2015-02-06 12:48 ` Peter Ujfalusi
2015-02-06 12:48 ` [PATCH 1/2] ARM: omap2+: omap_hwmod: Use _nested version of spinlock for oh->_lock Peter Ujfalusi
2015-02-06 12:48 ` Peter Ujfalusi
2015-02-06 12:48 ` Peter Ujfalusi
2015-02-06 12:48 ` [PATCH 2/2] ARM: DRA7: hwmod_data: Change locked_class for atl hwmod Peter Ujfalusi
2015-02-06 12:48 ` Peter Ujfalusi
2015-02-06 12:48 ` Peter Ujfalusi
2015-02-06 14:13 ` [PATCH 0/2] ARM: omap2+: omap_hwmod: Fix false lockdep warning Peter Zijlstra
2015-02-06 14:13 ` Peter Zijlstra
2015-02-06 16:05 ` Peter Ujfalusi
2015-02-06 16:05 ` Peter Ujfalusi
2015-02-06 16:05 ` Peter Ujfalusi
2015-02-06 18:32 ` Peter Zijlstra
2015-02-06 18:32 ` Peter Zijlstra
2015-02-06 19:26 ` Peter Ujfalusi
2015-02-06 19:26 ` Peter Ujfalusi
2015-02-06 19:26 ` Peter Ujfalusi
2015-02-09 8:27 ` Peter Ujfalusi
2015-02-09 8:27 ` Peter Ujfalusi
2015-02-09 8:27 ` Peter Ujfalusi
2015-02-09 9:23 ` Peter Zijlstra [this message]
2015-02-09 9:23 ` Peter Zijlstra
2015-02-09 16:00 ` Paul Walmsley
2015-02-09 16:00 ` Paul Walmsley
2015-02-09 17:31 ` Tony Lindgren
2015-02-09 17:31 ` Tony Lindgren
2015-02-09 18:55 ` Paul Walmsley
2015-02-09 18:55 ` Paul Walmsley
2015-02-09 22:16 ` Tony Lindgren
2015-02-09 22:16 ` Tony Lindgren
2015-02-09 22:16 ` Tony Lindgren
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