From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [GIT] Networking
Date: Tue, 03 Nov 2015 11:56:16 +1100
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Cc: Andy Lutomirski <luto@kernel.org>,
	David Miller <davem@davemloft.net>,
	Hannes Frederic Sowa <hannes@stressinduktion.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Network Development <netdev@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
To: Andy Lutomirski <luto@amacapital.net>
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On Mon, 2015-11-02 at 13:30 -0800, Andy Lutomirski wrote:
> 
> I'll stop making inane arguments if you stop bashing arguments I
> didn't make. :)  I said the helpers were useful for multiplication (by
> which I meant both signed and unsigned) and, to a lesser extent, for
> signed addition and subtraction.
> 
> I don't believe I even tried to justify usub_overflow as anything
> other than an extremely minor optimization that probably isn't
> worthwhile.

Also how much of the problem is simply that the function signature
(naming and choice of arguments) just plain sucks ?

Cheers,
Ben.