netdev - Re: [PATCH 3/4] dccp: Initialisation and type-checking of feature sysctls

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Date:	Sun, 18 Jan 2009 21:40:25 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	gerrit@....abdn.ac.uk
Cc:	dccp@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 3/4] dccp: Initialisation and type-checking of feature
 sysctls

From: Gerrit Renker <gerrit@....abdn.ac.uk>
Date: Sat, 17 Jan 2009 10:36:32 +0100

> This patch takes care of initialising and type-checking sysctls related to
> feature negotiation. Type checking is important since some of the sysctls
> now directly impact the feature-negotiation process.
> 
> The sysctls are initialised with the known default values for each feature.
> For the type-checking the value constraints from RFC 4340 are used:
> 
>  * Sequence Window uses the specified Wmin=32, the maximum is ulong (4 bytes),
>    tested and confirmed that it works up to 4294967295 - for Gbps speed;
>  * Ack Ratio is between 0 .. 0xffff (2-byte unsigned integer);
>  * CCIDs are between 0 .. 255;
>  * request_retries, retries1, retries2 also between 0..255 for good measure;
>  * tx_qlen is checked to be non-negative;
>  * sync_ratelimit remains as before.
 ...
> Signed-off-by: Gerrit Renker <gerrit@....abdn.ac.uk>
> Acked-by: Ian McDonald <ian.mcdonald@...di.co.nz>

Applied for 2.6.30
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