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[PATCH v0 3/4] i2c: brcmstb: Use complete() instead of complete_all()

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  [PATCH v0 3/4] i2c: brcmstb: Use complete() instead of complete_all() Daniel Wagner <wagi@monom.org> - 2016-08-03 14:20 +0200
    Re: [PATCH v0 3/4] i2c: brcmstb: Use complete() instead of complete_all() Kamal Dasu <kdasu.kdev@gmail.com> - 2016-08-03 18:10 +0200

#1455772 — [PATCH v0 3/4] i2c: brcmstb: Use complete() instead of complete_all()

From: Daniel Wagner <daniel.wagner@bmw-carit.de>

There is only one waiter for the completion, therefore there
is no need to use complete_all(). Let's make that clear by
using complete() instead of complete_all().

The usage pattern of the completion is:

brcmstb_send_i2c_cmd()
  reinit_completion()
  ...
  /* initiate transfer by setting iic_enable */
  ...
  brcmstb_i2c_wait_for_completion()

Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
---
 drivers/i2c/busses/i2c-brcmstb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
index 6a8cfc1..ab4ff96 100644
--- a/drivers/i2c/busses/i2c-brcmstb.c
+++ b/drivers/i2c/busses/i2c-brcmstb.c
@@ -228,7 +228,7 @@ static irqreturn_t brcmstb_i2c_isr(int irq, void *devid)
 		return IRQ_NONE;
 
 	brcmstb_i2c_enable_disable_irq(dev, INT_DISABLE);
-	complete_all(&dev->done);
+	complete(&dev->done);
 
 	dev_dbg(dev->device, "isr handled");
 	return IRQ_HANDLED;
-- 
2.7.4

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#1455875

LGTM

On Wed, Aug 3, 2016 at 8:03 AM, Daniel Wagner <wagi@monom.org> wrote:
> From: Daniel Wagner <daniel.wagner@bmw-carit.de>
>
> There is only one waiter for the completion, therefore there
> is no need to use complete_all(). Let's make that clear by
> using complete() instead of complete_all().
>
> The usage pattern of the completion is:
>
> brcmstb_send_i2c_cmd()
>   reinit_completion()
>   ...
>   /* initiate transfer by setting iic_enable */
>   ...
>   brcmstb_i2c_wait_for_completion()
>
> Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>

Reviewed-by: Kamal Dasu <kdasu.kdev@gmail.com>

> ---
>  drivers/i2c/busses/i2c-brcmstb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c
> index 6a8cfc1..ab4ff96 100644
> --- a/drivers/i2c/busses/i2c-brcmstb.c
> +++ b/drivers/i2c/busses/i2c-brcmstb.c
> @@ -228,7 +228,7 @@ static irqreturn_t brcmstb_i2c_isr(int irq, void *devid)
>                 return IRQ_NONE;
>
>         brcmstb_i2c_enable_disable_irq(dev, INT_DISABLE);
> -       complete_all(&dev->done);
> +       complete(&dev->done);
>
>         dev_dbg(dev->device, "isr handled");
>         return IRQ_HANDLED;
> --
> 2.7.4

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