netdev - Re: [PATCH net-next 00/11] skb_put_zero() used to optimize code

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Message-ID: <1497457773.9377.2.camel@sipsolutions.net>
Date:   Wed, 14 Jun 2017 18:29:33 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     cugyly@....com, netdev@...r.kernel.org
Cc:     "David S . Miller" <davem@...emloft.net>,
        yuan linyu <Linyu.Yuan@...atel-sbell.com.cn>
Subject: Re: [PATCH net-next 00/11] skb_put_zero() used to optimize code

On Wed, 2017-06-14 at 23:00 +0800, yuan linyu wrote:

> sorry, I do them by hand. 

oh, ok.

This seems to work:

@@
identifier p;
expression len;
expression skb;
type t;
@@
-p = (t)skb_put(skb, len);
-memset(p, 0, len);
+p = (t)skb_put_zero(skb, len);

johannes