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From: Gerd Hoffmann <kraxel@redhat.com>
To: Shawn Lin <shawn.lin@rock-chips.com>
Cc: linux-rpi-kernel@lists.infradead.org,
	Stefan Wahren <stefan.wahren@i2se.com>,
	Eric Anholt <eric@anholt.net>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	linux-mmc@vger.kernel.org,
	Florian Fainelli <f.fainelli@gmail.com>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	"maintainer:BROADCOM BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE..."
	<bcm-kernel-feedback-list@broadcom.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Lee Jones <lee@kernel.org>,
	"moderated list:BROADCOM BCM2835 ARM ARCHITECTURE"
	<linux-arm-kernel@lists.infradead.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 04/13] mmc: bcm2835: add bcm2835_check_data_error
Date: Fri, 27 Jan 2017 11:31:01 +0100	[thread overview]
Message-ID: <1485513061.19754.62.camel@redhat.com> (raw)
In-Reply-To: <3876dea7-cd61-e7cf-e838-8bab6927c8fb@rock-chips.com>

  Hi,

> > @@ -1007,15 +1017,7 @@ static void bcm2835_data_irq(struct bcm2835_host *host, u32 intmask)
> >  	if (!host->data)
> >  		return;
> >
> 
> remove this check, !host->data, as well.

There is a comment in the code saying it is needed, here is more
context:

static void bcm2835_data_irq(struct bcm2835_host *host, u32 intmask)
{
	/* There are no dedicated data/space available interrupt
	 * status bits, so it is necessary to use the single shared
	 * data/space available FIFO status bits. It is therefore not
	 * an error to get here when there is no data transfer in
	 * progress.
	 */
	if (!host->data)
		return;

	bcm2835_check_data_error(host, intmask);

cheers,
  Gerd

  reply	other threads:[~2017-01-27 10:31 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-26 23:37 [PATCH 00/13] mmc: bcm2835: more cleanups Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 01/13] mmc: bcm2835: add bcm2835_read_wait_sdcmd Gerd Hoffmann
2017-01-26 23:51   ` Florian Fainelli
2017-01-27  8:04     ` Gerd Hoffmann
2017-01-27 18:23       ` Florian Fainelli
2017-02-15 10:59         ` Jeremy McNicoll
2017-01-27  2:03   ` Shawn Lin
2017-01-27 10:28     ` Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 02/13] mmc: bcm2835: use bcm2835_read_wait_sdcmd in bcm2835_send_command Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 03/13] mmc: bcm2835: add bcm2835_threaded_irq Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 04/13] mmc: bcm2835: add bcm2835_check_data_error Gerd Hoffmann
2017-01-27  2:05   ` Shawn Lin
2017-01-27 10:31     ` Gerd Hoffmann [this message]
2017-01-26 23:37 ` [PATCH 05/13] mmc: bcm2835: call bcm2835_block_irq from irqthread Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 06/13] mmc: bcm2835: add bcm2835_check_cmd_error Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 07/13] mmc: bcm2835: call bcm2835_busy_irq from irqthread Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 08/13] mmc: bcm2835: split bcm2835_data_irq Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 09/13] mmc: bcm2835: switch locking to mutex Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 10/13] mmc: bcm2835: work queue is dead code now, zap Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 11/13] mmc: bcm2835: kill tasklet Gerd Hoffmann
2017-01-26 23:37 ` [PATCH 12/13] mmc: bcm2835: move timeout to thread context Gerd Hoffmann
2017-01-27  2:08   ` Shawn Lin
2017-01-26 23:37 ` [PATCH 13/13] mmc: bcm2835: use bcm2835_read_wait_sdcmd in bcm2835_finish_command Gerd Hoffmann
     [not found] ` <1485473846-24537-1-git-send-email-kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-01-27  8:25   ` [PATCH 00/13] mmc: bcm2835: more cleanups Ulf Hansson
     [not found]     ` <CAPDyKFoOShjQC8MbaxEuPG9m5FiSEfEd55qph3UDRHXH7C6VWA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-01-27 17:52       ` Eric Anholt

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