From: SF Markus Elfring <elfring@users.sourceforge.net>
To: Alexander Viro <viro@zeniv.linux.org.uk>, linux-fsdevel@vger.kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>,
kernel-janitors@vger.kernel.org,
Julia Lawall <julia.lawall@lip6.fr>
Subject: Re: [PATCH] fs-eventpoll: Deletion of unnecessary checks before the function call "__pm_stay_awake"
Date: Fri, 26 Jun 2015 19:42:13 +0200 [thread overview]
Message-ID: <558D8EF5.9030701@users.sourceforge.net> (raw)
In-Reply-To: <546B04E2.80000@users.sourceforge.net>
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Tue, 18 Nov 2014 09:27:16 +0100
>
> The __pm_stay_awake() function tests whether its argument is NULL and then
> returns immediately. Thus the test around the call is not needed.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
> fs/eventpoll.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/fs/eventpoll.c b/fs/eventpoll.c
> index 7bcfff9..eec2e85 100644
> --- a/fs/eventpoll.c
> +++ b/fs/eventpoll.c
> @@ -555,8 +555,7 @@ static inline void ep_pm_stay_awake(struct epitem *epi)
> {
> struct wakeup_source *ws = ep_wakeup_source(epi);
>
> - if (ws)
> - __pm_stay_awake(ws);
> + __pm_stay_awake(ws);
> }
>
> static inline bool ep_has_wakeup_source(struct epitem *epi)
> @@ -571,8 +570,7 @@ static inline void ep_pm_stay_awake_rcu(struct epitem *epi)
>
> rcu_read_lock();
> ws = rcu_dereference(epi->ws);
> - if (ws)
> - __pm_stay_awake(ws);
> + __pm_stay_awake(ws);
> rcu_read_unlock();
> }
>
>
How are the chances to integrate this update suggestion
into another source code repository?
Regards,
Markus
next prev parent reply other threads:[~2015-06-26 17:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5307CAA2.8060406@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402212321410.2043@localhost6.localdomain6>
[not found] ` <530A086E.8010901@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402231635510.1985@localhost6.localdomain6>
[not found] ` <530A72AA.3000601@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402240658210.2090@localhost6.localdomain6>
[not found] ` <530B5FB6.6010207@users.sourceforge.net>
[not found] ` <alpine.DEB.2.10.1402241710370.2074@hadrien>
[not found] ` <530C5E18.1020800@users.sourceforge.net>
[not found] ` <alpine.DEB.2.10.1402251014170.2080@hadrien>
[not found] ` <530CD2C4.4050903@users.sourceforge.net>
[not found] ` <alpine.DEB.2.10.1402251840450.7035@hadrien>
[not found] ` <530CF8FF.8080600@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402252117150.2047@localhost6.localdomain6>
[not found] ` <530DD06F.4090703@users.sourceforge.net>
[not found] ` <alpine.DEB.2.02.1402262129250.2221@localhost6.localdomain6>
[not found] ` <5317A59D.4@users.so urceforge.net>
[not found] ` <5317A59D.4@users.sourceforge.net>
2014-11-17 18:19 ` [PATCH 1/1] hfs/hfs+: Deletion of unnecessary checks before the function call "hfs_bnode_put" SF Markus Elfring
2014-11-17 19:18 ` Vyacheslav Dubeyko
2015-06-29 13:40 ` [PATCH] " SF Markus Elfring
2014-11-18 8:35 ` [PATCH 1/1] fs-eventpoll: Deletion of unnecessary checks before the function call "__pm_stay_awake" SF Markus Elfring
2015-06-26 17:42 ` SF Markus Elfring [this message]
2014-11-18 11:20 ` [PATCH 1/1] fs-namespace: Deletion of unnecessary checks before the function call "mntput" SF Markus Elfring
2015-07-04 9:26 ` [PATCH] fs-namespace: Delete " SF Markus Elfring
2014-11-29 16:03 ` [PATCH 1/1] fs-namei: Deletion of an unnecessary check before the function call "iput" SF Markus Elfring
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