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Groups > linux.kernel > #1197186
| From | Dmitry Torokhov <dmitry.torokhov@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 05/15] drivers: input: Drop unlikely before IS_ERR(_OR_NULL) |
| Date | 2015-07-31 19:00 +0200 |
| Message-ID | <pSlP4-3eU-1@gated-at.bofh.it> (permalink) |
| References | <pSe1b-aE-3@gated-at.bofh.it> <pSe1d-aE-37@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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
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Re: [PATCH 05/15] drivers: input: Drop unlikely before IS_ERR(_OR_NULL) Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-07-31 19:00 +0200
Re: [PATCH 05/15] drivers: input: Drop unlikely before IS_ERR(_OR_NULL) Viresh Kumar <viresh.kumar@linaro.org> - 2015-08-01 13:30 +0200
Re: [PATCH 05/15] drivers: input: Drop unlikely before IS_ERR(_OR_NULL) Pali Rohár <pali.rohar@gmail.com> - 2015-08-01 13:50 +0200
Re: [PATCH 05/15] drivers: input: Drop unlikely before IS_ERR(_OR_NULL) Pali Rohár <pali.rohar@gmail.com> - 2015-08-02 18:00 +0200
Re: [PATCH 05/15] drivers: input: Drop unlikely before IS_ERR(_OR_NULL) Pavel Machek <pavel@ucw.cz> - 2015-08-02 17:50 +0200
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