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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: akpm@linux-foundation.org, linaro-kernel@lists.linaro.org,
	linux-kernel@vger.kernel.org,
	"Hans de Goede" <hdegoede@redhat.com>,
	"open list:INPUT (KEYBOARD, MOUSE, JOYSTICK,
	TOUCHSCREEN)..." <linux-input@vger.kernel.org>,
	"Masaki Ota" <masaki.ota@jp.alps.com>,
	"Pali Rohár" <pali.rohar@gmail.com>
Subject: Re: [PATCH 05/15] drivers: input: Drop unlikely before IS_ERR(_OR_NULL)
Date: Fri, 31 Jul 2015 09:58:41 -0700	[thread overview]
Message-ID: <20150731165841.GD5613@dtor-ws> (raw)
In-Reply-To: <72b53f2cabc15cf3d019041a0ed605ca7c24d19b.1438331416.git.viresh.kumar@linaro.org>

On Fri, Jul 31, 2015 at 02:08:25PM +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.

I'd rather keep it as it documents the expected behavior and double
unlikely should work just fine.

> 
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> ---
>  drivers/input/mouse/alps.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
> index 113d6f1516a5..cef3611a4ccd 100644
> --- a/drivers/input/mouse/alps.c
> +++ b/drivers/input/mouse/alps.c
> @@ -1365,7 +1365,7 @@ static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
>  		/* On V2 devices the DualPoint Stick reports bare packets */
>  		dev = priv->dev2;
>  		dev2 = psmouse->dev;
> -	} else if (unlikely(IS_ERR_OR_NULL(priv->dev3))) {
> +	} else if (IS_ERR_OR_NULL(priv->dev3)) {
>  		/* Register dev3 mouse if we received PS/2 packet first time */
>  		if (!IS_ERR(priv->dev3))
>  			psmouse_queue_work(psmouse, &priv->dev3_register_work,
> -- 
> 2.4.0
> 

Thanks.

-- 
Dmitry

  reply	other threads:[~2015-07-31 16:58 UTC|newest]

Thread overview: 84+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-31  8:38 [PATCH 00/15] trivial: Drop unlikely before IS_ERR(_OR_NULL) Viresh Kumar
2015-07-31  8:38 ` [PATCH 01/15] err.h: add (missing) unlikely() to IS_ERR_OR_NULL() Viresh Kumar
2015-07-31  8:38 ` [PATCH 02/15] PM / OPP: Drop unlikely before IS_ERR(_OR_NULL) Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  8:38 ` [PATCH 03/15] drivers: devfreq: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  8:38 ` [PATCH 04/15] drivers: gpu: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31 15:53   ` Sinclair Yeh
2015-07-31 15:53     ` Sinclair Yeh
2015-08-03  8:01     ` Daniel Vetter
2015-08-03  8:01       ` Daniel Vetter
2015-07-31  8:38 ` [PATCH 05/15] drivers: input: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31 16:58   ` Dmitry Torokhov [this message]
2015-08-01 11:22     ` Viresh Kumar
2015-08-01 11:44       ` Pali Rohár
2015-08-02 15:43         ` Pavel Machek
2015-08-02 15:43           ` Pavel Machek
2015-08-02 15:59           ` Pali Rohár
2015-07-31  8:38 ` [PATCH 06/15] drivers: md: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  8:38 ` [PATCH 07/15] drivers: misc: " Viresh Kumar
2015-07-31  8:38 ` [PATCH 08/15] drivers: net: " Viresh Kumar
2015-07-31 15:04   ` Murali Karicheri
2015-07-31 15:39     ` David Laight
2015-07-31 16:20     ` Viresh Kumar
2015-08-03 15:52       ` Murali Karicheri
2015-07-31  8:38 ` [rtc-linux] [PATCH 09/15] drivers: rtc: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  9:31   ` [rtc-linux] [PATCH] drivers: rtc: fix ptr_ret.cocci warnings Viresh Kumar
2015-07-31  9:31     ` Viresh Kumar
2015-07-31  9:31     ` Viresh Kumar
2015-08-11 15:54     ` [rtc-linux] " Alexandre Belloni
2015-08-11 15:54       ` Alexandre Belloni
2015-08-11 15:54       ` Alexandre Belloni
2015-07-31 10:53   ` [rtc-linux] [PATCH 9/15 V2] drivers: rtc: Drop (un)likely before IS_ERR(_OR_NULL) Viresh Kumar
2015-07-31 10:53     ` Viresh Kumar
2015-07-31 10:53     ` Viresh Kumar
2015-08-03  4:32     ` [rtc-linux] " 'Hans Ulli Kroll' via rtc-linux
2015-08-03  4:32       ` Hans Ulli Kroll
2015-08-03  4:32       ` Hans Ulli Kroll
2015-08-11 15:54     ` [rtc-linux] " Alexandre Belloni
2015-08-11 15:54       ` Alexandre Belloni
2015-08-11 15:54       ` Alexandre Belloni
2015-07-31  8:38 ` [PATCH 10/15] drivers: staging: Drop unlikely " Viresh Kumar
2015-07-31  8:38 ` [PATCH 11/15] drivers: target: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-08-03  5:45   ` Nicholas A. Bellinger
2015-07-31  8:38 ` [PATCH 12/15] fs: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  9:20   ` David Howells
2015-07-31  9:20     ` David Howells
2015-07-31  9:20     ` David Howells
2015-07-31  8:38 ` [PATCH 13/15] blk-cgroup: " Viresh Kumar
2015-07-31 11:59   ` Tejun Heo
2015-07-31  8:38 ` [PATCH 14/15] mm: " Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  8:56   ` Kirill A. Shutemov
2015-07-31  8:56     ` Kirill A. Shutemov
2015-07-31  9:32     ` yalin wang
2015-07-31  9:32       ` yalin wang
2015-07-31  9:34       ` Viresh Kumar
2015-07-31  9:34         ` Viresh Kumar
2015-07-31 10:28         ` Joe Perches
2015-07-31 10:28           ` Joe Perches
2015-07-31 11:06           ` Viresh Kumar
2015-07-31 11:06             ` Viresh Kumar
2015-07-31 18:00             ` Joe Perches
2015-07-31 18:00               ` Joe Perches
2015-08-01 11:18               ` Viresh Kumar
2015-08-01 11:18                 ` Viresh Kumar
2015-07-31  8:38 ` [PATCH 15/15] net: " Viresh Kumar
2015-07-31  8:50   ` Viresh Kumar
2015-07-31  8:38   ` Viresh Kumar
2015-07-31  9:41 ` [PATCH 00/15] trivial: " Vlastimil Babka
2015-07-31  9:49   ` Viresh Kumar
2015-07-31 10:23   ` Kirill A. Shutemov
2015-07-31 11:02     ` [PATCH] staging: lustre: drop redundant check Viresh Kumar
2015-07-31 11:04     ` [PATCH 00/15] trivial: Drop unlikely before IS_ERR(_OR_NULL) Viresh Kumar
2015-08-03 21:38     ` Steven Rostedt
2015-08-04  2:19       ` Viresh Kumar

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