From: felipe.contreras@gmail.com (Felipe Contreras)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm: remove unused code in delay.S
Date: Tue, 15 Sep 2009 13:47:01 +0300 [thread overview]
Message-ID: <94a0d4530909150347h642772bvc8175109393e905f@mail.gmail.com> (raw)
In-Reply-To: <20090915103739.GA19519@elf.ucw.cz>
On Tue, Sep 15, 2009 at 1:37 PM, Pavel Machek <pavel@ucw.cz> wrote:
>
>> >> > Because then you get it whenever you configure for V4 as the lowest
>> >> > denominator CPU, which leads to the buggy behaviour on better CPUs.
>> >> > It's far better to leave it as is and just accept that the old CPUs
>> >> > will have longer than necessary delays. ?If people really really
>> >> > care (and there's likely to only be a small minority of them now)
>> >> > changing the '0' to a '1' is a very simple change for them to carry
>> >> > in their local tree. ?Unlike getting the right unrolling etc.
>> >>
>> >> Well, they can also 'git revert' this patch. If somebody really cares
>> >> I think they should shout now and provide a better patch, otherwise
>> >> this one should be merged.
>> >
>> > On the other hand, having the code there as it currently stands is not
>> > harmful in any way, so leaving it there is just as easy.
>>
>> It makes the code less understandable. I'm not sure about linux's
>> practices, but an #if 0 generally means somebody is being lazy.
>
> Not in this case, as you was explained to you. You may want to add
> explaining comment above #if 0....
Yes, but I've no idea in which situations somebody might want to
enable that code. Old chips? Which old chips?
--
Felipe Contreras
next prev parent reply other threads:[~2009-09-15 10:47 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-13 21:05 [PATCH] arm: remove unused code in delay.S Felipe Contreras
2009-09-13 21:28 ` Marek Vasut
2009-09-13 23:00 ` Russell King - ARM Linux
2009-09-14 0:21 ` Jamie Lokier
2009-09-14 8:10 ` Russell King - ARM Linux
2009-09-14 12:58 ` Felipe Contreras
2009-09-14 14:00 ` Russell King - ARM Linux
2009-09-14 14:38 ` Felipe Contreras
2009-09-14 14:40 ` Russell King - ARM Linux
2009-09-14 15:14 ` Felipe Contreras
2009-09-14 15:21 ` Russell King - ARM Linux
2009-09-14 15:50 ` Felipe Contreras
2009-09-14 16:25 ` Marek Vasut
2009-09-14 16:54 ` Felipe Contreras
2009-09-14 15:36 ` Wolfram Sang
2009-09-14 16:06 ` Felipe Contreras
2009-09-14 16:24 ` Wolfram Sang
2009-09-15 10:37 ` Pavel Machek
2009-09-15 10:47 ` Felipe Contreras [this message]
2009-09-15 10:49 ` Pavel Machek
2009-09-15 11:20 ` Felipe Contreras
2009-09-15 12:29 ` Steve Chen
2009-09-15 13:41 ` Marek Vasut
2009-09-15 16:30 ` Steve Chen
2009-09-15 18:58 ` Felipe Contreras
2009-09-15 19:44 ` Steve Chen
2009-09-15 20:39 ` Marek Vasut
2009-09-15 21:04 ` Krzysztof Halasa
2009-09-15 22:26 ` Steve Chen
2009-09-15 22:47 ` Krzysztof Halasa
2009-09-16 8:26 ` Steve Chen
2009-09-16 12:30 ` Krzysztof Halasa
2009-09-16 14:49 ` Steve Chen
2009-09-16 20:21 ` Sergei Shtylyov
2009-09-16 13:47 ` Russell King - ARM Linux
2009-09-17 19:32 ` Jamie Lokier
2009-09-17 19:41 ` Russell King - ARM Linux
2009-09-17 21:29 ` [PATCH v2] " Steve Chen
2009-09-17 21:37 ` Jamie Lokier
2009-09-17 22:25 ` Steve Chen
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