netdev - Re: [PATCH net-next] core: adjust checks for calling skb_copy_bits in skb_try

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Message-ID: <CAJFZqHz5Ny8kbXk4arj-CEfQs+r28oGUQChNJ+0nSOTTg=c82A@mail.gmail.com>
Date:	Thu, 20 Sep 2012 13:57:00 +0800
From:	RongQing Li <roy.qing.li@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	netdev@...r.kernel.org, edumazet@...gle.com
Subject: Re: [PATCH net-next] core: adjust checks for calling skb_copy_bits in skb_try_coalesce

> Did you read skb_tailroom(to) definition by any chance ?
>
> static inline int skb_tailroom(const struct sk_buff *skb)
> {
>         return skb_is_nonlinear(skb) ? 0 : skb->end - skb->tail;
> }
>
> Current code is fine, because if @to is linear, its ... linear.
>
>
>

I am wrong, thanks.
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