linux-kernel - Re: [PATCH -next] sched/x86: Remove duplicated include from itmt.c

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Message-ID: <20170210081650.GB17987@gmail.com>
Date:   Fri, 10 Feb 2017 09:16:50 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Wei Yongjun <weiyj.lk@...il.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Wei Yongjun <weiyongjun1@...wei.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] sched/x86: Remove duplicated include from itmt.c


* Wei Yongjun <weiyj.lk@...il.com> wrote:

> From: Wei Yongjun <weiyongjun1@...wei.com>
> 
> Remove duplicated include.
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
> ---
>  arch/x86/kernel/itmt.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/arch/x86/kernel/itmt.c b/arch/x86/kernel/itmt.c
> index f73f475..b5ccc9b 100644
> --- a/arch/x86/kernel/itmt.c
> +++ b/arch/x86/kernel/itmt.c
> @@ -20,7 +20,6 @@
>   * frequency under ITMT.
>   */
>  
> -#include <linux/sched.h>
>  #include <linux/cpumask.h>
>  #include <linux/cpuset.h>
>  #include <linux/mutex.h>

Firstly, we generally use 'larger' headers first, i.e. sched.h, mm.h, etc.

Secondly, this:

#include <linux/sched.h>
#include <linux/cpumask.h>
#include <linux/cpuset.h>
#include <linux/mutex.h>
#include <linux/sysctl.h>
#include <linux/nodemask.h>

... can probably be further reduced, because for example sched.h already includes 
some of these headers.

I.e. instead of a mindless single liner that helps no-one, try to improve the code 
for real...

Thanks,

	Ingo