netdev - Re: [PATCH net-next 1/3] net: move pskb

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Message-ID: <1383676424.2868.11.camel@bwh-desktop.uk.level5networks.com>
Date:	Tue, 5 Nov 2013 18:33:44 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Mathias Krause <mathias.krause@...unet.com>
CC:	"David S. Miller" <davem@...emloft.net>,
	Steffen Klassert <steffen.klassert@...unet.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	Dmitry Tarnyagin <dmitry.tarnyagin@...kless.no>,
	<netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 1/3] net: move pskb_put() to core code

On Tue, 2013-11-05 at 14:54 +0100, Mathias Krause wrote:
> This function has usage beside IPsec so move it to the core skbuff code.
> While doing so, give it some documentation and change its return type to
> 'unsigned char *' to be in line with skb_put().
[...]
> --- a/net/core/skbuff.c
> +++ b/net/core/skbuff.c
> @@ -1257,6 +1257,29 @@ free_skb:
>  EXPORT_SYMBOL(skb_pad);
>  
>  /**
> + *	pskb_put - add data to the tail of a potentially fragmented buffer
> + *	@skb: start of the buffer to use
> + *	@tail: tail fragment of the buffer to use
> + *	@len: amount of data to add
> + *
> + *	This function extends the used data area of the potentially
> + *	fragmented buffer. &tail must be the last fragment of &skb -- or
> + *	&skb itself. If this would exceed the total buffer size the kernel

Keep using @ to refer to the parameters in this description.

Ben.

> + *	will panic. A pointer to the first byte of the extra data is
> + *	returned.
> + */
[...]

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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