linux-kernel - RE: [PATCH 23/25] video/exynos: don't use [delayed_]work

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Message-id: <00af01cddff1$4170db40$c45291c0$@samsung.com>
Date:	Fri, 21 Dec 2012 19:05:51 -0800
From:	Kukjin Kim <kgene.kim@...sung.com>
To:	'Tejun Heo' <tj@...nel.org>, linux-kernel@...r.kernel.org
Cc:	'Jingoo Han' <jg1.han@...sung.com>,
	'Florian Tobias Schandinat' <FlorianSchandinat@....de>
Subject: RE: [PATCH 23/25] video/exynos: don't use [delayed_]work_pending()

Tejun Heo wrote:
> 
> There's no need to test whether a (delayed) work item in pending
> before queueing, flushing or cancelling it.  Most uses are unnecessary
> and quite a few of them are buggy.
> 
> Remove unnecessary pending tests from exynos_dp_core.  Only compile
> tested.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Cc: Kukjin Kim <kgene.kim@...sung.com>

Acked-by: Kukjin Kim <kgene.kim@...sung.com>

> ---
> Please let me know how this patch should be routed.  I can take it
> through the workqueue tree if necessary.
> 
Cc'ed Jingoo and Florian.

Now the exynos dp driver are being handled by Jingoo so let's waiting for
his opinion to take this by himself or not. 

- Kukjin Kim

> Thanks.
> 
>  drivers/video/exynos/exynos_dp_core.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/video/exynos/exynos_dp_core.c
> b/drivers/video/exynos/exynos_dp_core.c
> index 28fd686..3002a6a 100644
> --- a/drivers/video/exynos/exynos_dp_core.c
> +++ b/drivers/video/exynos/exynos_dp_core.c
> @@ -1121,8 +1121,7 @@ static int __devexit exynos_dp_remove(struct
> platform_device *pdev)
> 
>  	disable_irq(dp->irq);
> 
> -	if (work_pending(&dp->hotplug_work))
> -		flush_work(&dp->hotplug_work);
> +	flush_work(&dp->hotplug_work);
> 
>  	if (pdev->dev.of_node) {
>  		if (dp->phy_addr)
> @@ -1144,8 +1143,7 @@ static int exynos_dp_suspend(struct device *dev)
>  	struct exynos_dp_platdata *pdata = dev->platform_data;
>  	struct exynos_dp_device *dp = dev_get_drvdata(dev);
> 
> -	if (work_pending(&dp->hotplug_work))
> -		flush_work(&dp->hotplug_work);
> +	flush_work(&dp->hotplug_work);
> 
>  	if (dev->of_node) {
>  		if (dp->phy_addr)
> --
> 1.8.0.2

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