Re: [PATCH V1 Resend 06/10] drivers: rtc: Drop (un)likely before IS_ERR(_OR_NULL)

From: Alexandre Belloni
Date: Wed Aug 12 2015 - 06:41:41 EST


Hi Viresh,

Why are you resending?

On 12/08/2015 at 15:59:43 +0530, Viresh Kumar wrote :
> IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there
> is no need to do that again from its callers. Drop it.
>
> gemini driver was using likely() for a failure case while the rtc driver
> is getting registered. That looks wrong and it should really be
> unlikely. But because we are killing all the unlikely() flags, lets kill
> that too.
>
> Acked-by: Hans Ulli Kroll <ulli.kroll@xxxxxxxxxxxxxx> (gemini)
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---
> drivers/rtc/interface.c | 2 +-
> drivers/rtc/rtc-bfin.c | 2 +-
> drivers/rtc/rtc-gemini.c | 2 +-
> 3 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
> index 11b639067312..5836751b8203 100644
> --- a/drivers/rtc/interface.c
> +++ b/drivers/rtc/interface.c
> @@ -564,7 +564,7 @@ enum hrtimer_restart rtc_pie_update_irq(struct hrtimer *timer)
> void rtc_update_irq(struct rtc_device *rtc,
> unsigned long num, unsigned long events)
> {
> - if (unlikely(IS_ERR_OR_NULL(rtc)))
> + if (IS_ERR_OR_NULL(rtc))
> return;
>
> pm_stay_awake(rtc->dev.parent);
> diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
> index 3d44b11721ea..535a5f9338d0 100644
> --- a/drivers/rtc/rtc-bfin.c
> +++ b/drivers/rtc/rtc-bfin.c
> @@ -361,7 +361,7 @@ static int bfin_rtc_probe(struct platform_device *pdev)
> /* Register our RTC with the RTC framework */
> rtc->rtc_dev = devm_rtc_device_register(dev, pdev->name, &bfin_rtc_ops,
> THIS_MODULE);
> - if (unlikely(IS_ERR(rtc->rtc_dev)))
> + if (IS_ERR(rtc->rtc_dev))
> return PTR_ERR(rtc->rtc_dev);
>
> /* Grab the IRQ and init the hardware */
> diff --git a/drivers/rtc/rtc-gemini.c b/drivers/rtc/rtc-gemini.c
> index 35f4486738fc..2fed93e1114a 100644
> --- a/drivers/rtc/rtc-gemini.c
> +++ b/drivers/rtc/rtc-gemini.c
> @@ -148,7 +148,7 @@ static int gemini_rtc_probe(struct platform_device *pdev)
>
> rtc->rtc_dev = rtc_device_register(pdev->name, dev,
> &gemini_rtc_ops, THIS_MODULE);
> - if (likely(IS_ERR(rtc->rtc_dev)))
> + if (IS_ERR(rtc->rtc_dev))
> return PTR_ERR(rtc->rtc_dev);
>
> return 0;
> --
> 2.4.0
>

--
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/