linux-kernel - Re: [PATCH -v2] x86: allocate cpumask during check irq vectors

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Message-ID: <eb93bdba-d16d-4a85-ae40-f265b1db5ed4@email.android.com>
Date:	Sun, 26 Jan 2014 12:29:49 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ingo Molnar <mingo@...nel.org>
CC:	Prarit Bhargava <prarit@...hat.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -v2] x86: allocate cpumask during check irq vectors

I strongly disagree with putting variables in file scope when function scope will do, but I do like to see static variables before automatics.  Anyway, this is bikeshedding.

Ingo Molnar <mingo@...nel.org> wrote:
>
>* H. Peter Anvin <hpa@...or.com> wrote:
>
>> s/global/static/, with a big loud comment why it is okay.
>
>It would be a global no matter which form we use, but for 
>maintainability reasons I generally prefer a static put right before 
>the function that uses it:
>
>	static cpumask_t mask;
>
>	static func(...)
>	{
>	}
>
>That makes it really apparent that it's a global - statics are easily 
>missed when hiding amongst local variables.
>
>Thanks,
>
>	Ingo

-- 
Sent from my mobile phone.  Please pardon brevity and lack of formatting.
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