netdev - Re: Crashes in xfrm

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Message-ID: <20100409082239.GA2194@gondor.apana.org.au>
Date:	Fri, 9 Apr 2010 16:22:40 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Timo Teräs <timo.teras@....fi>
Cc:	broonie@...nsource.wolfsonmicro.com, netdev@...r.kernel.org
Subject: Re: Crashes in xfrm_lookup

On Fri, Apr 09, 2010 at 11:11:48AM +0300, Timo Teräs wrote:
>
> It's still really misleading to have generic function that does not
> do the expected thing based on some config. Compiler should know
> how to optimize the for loop away if it's being called with fixed
> array size.

But the compiler doesn't know because your patch makes it an
array unconditionally.

The SUB_POLICY stuff was a hack from the very start, but at least
you could compile it out previously.  Now it'll pollute things
regardless of the configuration.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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