netdev - Re: [PATCH] GRE: Use IS_ERR_OR_NULL in gre_gso

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Message-ID: <20130425090346.GA27618@gondor.apana.org.au>
Date:	Thu, 25 Apr 2013 17:03:46 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	jesse@...ira.com, horms@...ge.net.au, eric.dumazet@...il.com,
	netdev@...r.kernel.org, xeb@...l.ru
Subject: Re: [PATCH] GRE: Use IS_ERR_OR_NULL in gre_gso_segment

On Thu, Apr 25, 2013 at 05:01:57AM -0400, David Miller wrote:
> From: Herbert Xu <herbert@...dor.apana.org.au>
> Date: Thu, 25 Apr 2013 16:46:17 +0800
> 
> > Perhaps add an wrapper for the IS_ERR_OR_NULL with a descriptive
> > name?
> 
> Or pick an error code for the case covered by NULL.

Picking an error code may create a maintainence problem down the
track because the same error code could be reused by something
deeper down in the GSO stack.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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