linux-kernel - Re: [PATCH v2] x86: fix ktermios-termio conversion

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Message-ID: <20090512110527.5352cd0e@lxorguk.ukuu.org.uk>
Date:	Tue, 12 May 2009 11:05:27 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Arnd Bergmann <arnd@...db.de>, x86@...nel.org,
	linux-kernel@...r.kernel.org,
	Remis Lima Baima <remis.developer@...glemail.com>
Subject: Re: [PATCH v2] x86: fix ktermios-termio conversion

> My argument was very simple: the patch causes +150 bytes of bloat. 
> The try/ex/catch method can help reduce register pressure and can 
> reducethe size of code quite visibly.

My argument is even simpler - its not worth the effort in the first place.

I'm sure you could use the same time to shave 150 bytes and a few clocks
of a path that actually gets executed.

Arnd - can you send me a diff that keeps the existing horrible macro
version, the existing __put_user usage and just fixes c_line ? It's
worked for 15 years, its not worth the time being fancy with it.

Alan
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