netdev - Re: [PATCH] xen-netback: make ops structs const

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Date:	Thu, 5 Jan 2012 08:44:46 +0000
From:	Ian Campbell <Ian.Campbell@...rix.com>
To:	Stephen Hemminger <shemminger@...tta.com>
CC:	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] xen-netback: make ops structs const

On Wed, 2012-01-04 at 21:56 +0000, Stephen Hemminger wrote:
> All tables of function pointers should be const to make hacks
> more difficult. Compile tested only.

I also eyeballed for any writes to these structs and couldn't find one.

> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

Acked-by: Ian Campbell <ian.campbell@...rix.com>

> 
> ---
> Patch against net-next
> 
> --- a/drivers/net/xen-netback/interface.c	2011-12-07 10:54:19.232282492 -0800
> +++ b/drivers/net/xen-netback/interface.c	2012-01-04 13:16:04.414052721 -0800
> @@ -223,7 +223,7 @@ static void xenvif_get_strings(struct ne
>  	}
>  }
>  
> -static struct ethtool_ops xenvif_ethtool_ops = {
> +static const struct ethtool_ops xenvif_ethtool_ops = {
>  	.get_link	= ethtool_op_get_link,
>  
>  	.get_sset_count = xenvif_get_sset_count,
> @@ -231,7 +231,7 @@ static struct ethtool_ops xenvif_ethtool
>  	.get_strings = xenvif_get_strings,
>  };
>  
> -static struct net_device_ops xenvif_netdev_ops = {
> +static const struct net_device_ops xenvif_netdev_ops = {
>  	.ndo_start_xmit	= xenvif_start_xmit,
>  	.ndo_get_stats	= xenvif_get_stats,
>  	.ndo_open	= xenvif_open,


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