netdev - Re: [PATCH net-next V12 2/3] Check for vlan ethernet types for 8021.q or 802.1ad

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Message-Id: <20150727.012421.729387450726515671.davem@davemloft.net>
Date:	Mon, 27 Jul 2015 01:24:21 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	thomasfherbert@...il.com
Cc:	netdev@...r.kernel.org, pshelar@...ira.com, therbert@...hat.com,
	dev@...nvswitch.org
Subject: Re: [PATCH net-next V12 2/3] Check for vlan ethernet types for
 8021.q or 802.1ad

From: Thomas F Herbert <thomasfherbert@...il.com>
Date: Sun, 26 Jul 2015 10:52:34 -0400

> Signed-off-by: Thomas F Herbert <thomasfherbert@...il.com>
> ---
>  include/linux/if_vlan.h | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
> index 67ce5bd..88d1be4 100644
> --- a/include/linux/if_vlan.h
> +++ b/include/linux/if_vlan.h
> @@ -627,6 +627,23 @@ static inline netdev_features_t vlan_features_check(const struct sk_buff *skb,
>  
>  	return features;
>  }
> +/**
> + * eth_type_vlan - check for valid vlan ether type.
> + * @ethertype: ether type to check
> + *
> + * Returns true if the ether type is a vlan ether type.
> + */
> +static inline bool eth_type_vlan(__be16 ethertype)
> +{
> +	switch (ethertype) {
> +	case (htons(ETH_P_8021Q)):
> +		return true;
> +	case (htons(ETH_P_8021AD)):
> +		return true;

Please don't put unnecessary parenthesis around case statement values.

Thanks.
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