Messages in this thread | | | From | "Yang, Wenyou" <> | Subject | RE: [PATCH v7 06/14] spi/spi-atmel: add flag to controller data for lock operations | Date | Wed, 3 Apr 2013 05:09:53 +0000 |
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Hi, Mark,
> -----Original Message----- > From: Mark Brown [mailto:broonie@opensource.wolfsonmicro.com] > Sent: 2013年4月1日 21:46 > To: Yang, Wenyou > Cc: linux-arm-kernel@lists.infradead.org; grant.likely@secretlab.ca; > richard.genoud@gmail.com; plagnioj@jcrosoft.com; Ferre, Nicolas; Lin, JM; > spi-devel-general@lists.sourceforge.net; linux-kernel@vger.kernel.org > Subject: Re: [PATCH v7 06/14] spi/spi-atmel: add flag to controller data for lock > operations > > On Tue, Mar 19, 2013 at 03:46:03PM +0800, Wenyou Yang wrote: > > > +static void atmel_spi_lock(struct atmel_spi *as) { > > + spin_lock_irqsave(&as->lock, as->flags); } > > Coding style. I will change it in next version.
> > > - spin_unlock(&as->lock); > > + atmel_spi_unlock(as); > > msg->complete(msg->context); > > - spin_lock(&as->lock); > > + atmel_spi_lock(as); > > This replaces non-irqsave versions with irqsave versions of the lock. > Is this safe/correct? If it is I'd have expected some sort of mention of it in the > commit log. I will add some commit log.
Best Regards, Wenyou Yang
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