From: Mark Brown <broonie@kernel.org>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>,
Davide Ciminaghi <ciminaghi@gnudd.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] regmap: Make regmap-mmio usable from different contexts
Date: Thu, 23 May 2013 11:01:28 -0500 [thread overview]
Message-ID: <20130523160128.GA7660@sirena.org.uk> (raw)
In-Reply-To: <519E38ED.7090202@wwwdotorg.org>
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On Thu, May 23, 2013 at 09:42:37AM -0600, Stephen Warren wrote:
> I guess the core of the issue is that you want to replace spin_lock()
> with spin_lock_irqsave(). I'd like to see that explicitly described in
> the commit description, if that is the core aspect of this change.
Yes, I was just going to rewrite the commit log to make this a lot
clearer - the entire first paragraph could pretty much just be replaced
by just saying that we need spin_lock_irqsave() to allow interaction
with interrupt context.
> ... and obviously add a spinlock_flags field to struct regmap (perhaps
> start unioning the mutex and spinlock data fields there if you want to
> save space).
This should work, yes - care to respin Lars-Peter?
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next prev parent reply other threads:[~2013-05-23 16:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-23 13:06 [PATCH 1/2] regmap: regcache: Fixup locking for custom lock callbacks Lars-Peter Clausen
2013-05-23 13:06 ` [PATCH 2/2] regmap: Make regmap-mmio usable from different contexts Lars-Peter Clausen
2013-05-23 14:05 ` Mark Brown
2013-05-23 14:20 ` Lars-Peter Clausen
2013-05-23 14:31 ` Mark Brown
2013-05-23 14:36 ` Lars-Peter Clausen
2013-05-23 15:14 ` Mark Brown
2013-05-23 15:42 ` Stephen Warren
2013-05-23 15:50 ` Lars-Peter Clausen
2013-05-23 16:06 ` Stephen Warren
2013-05-23 16:10 ` Mark Brown
2013-05-23 16:01 ` Mark Brown [this message]
2013-05-23 14:08 ` [PATCH 1/2] regmap: regcache: Fixup locking for custom lock callbacks Mark Brown
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