From: Dave Jones <davej@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alexander Beregalov <a.beregalov@gmail.com>,
linux-kernel@vger.kernel.org, mathieu.desnoyers@polymtl.ca
Subject: Re: [PATCH] cpufreq: fix UP build
Date: Wed, 8 Jul 2009 14:17:18 -0400 [thread overview]
Message-ID: <20090708181718.GC13944@redhat.com> (raw)
In-Reply-To: <alpine.LFD.2.01.0907081103560.3352@localhost.localdomain>
On Wed, Jul 08, 2009 at 11:08:12AM -0700, Linus Torvalds wrote:
> (not new to your diff - it's pre-existing crap):
>
> > #ifdef CONFIG_SMP
> > struct cpufreq_policy *managed_policy;
> > + struct sys_device *cpu_sys_dev;
> > #endif
>
> and instead those variables should be declared inside the blocks where
> they are used, not at the top.
>
> The rule should always be: make the scope of a variable as small as
> possible. Don't declare it at the top and try to "save" a declaration when
> it can be used inside multiple blocks as multiple different variables.
>
> Also, that whole function could damn well be split into smaller pieces,
> which would make it much more readable than that horrible 250+ line piece
> of crap monster-function with #ifdef's inside the code.
Yes, cpufreq_add_dev is a monster. Its complexity keeps biting us in new ways.
> Please, somebody?
It's something to look at for .32, agreed.
Dave
next prev parent reply other threads:[~2009-07-08 18:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-08 17:57 [PATCH] cpufreq: fix UP build Alexander Beregalov
2009-07-08 18:08 ` Linus Torvalds
2009-07-08 18:17 ` Dave Jones [this message]
2009-07-08 20:17 ` Dave Jones
2009-07-08 18:15 ` Dave Jones
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