netdev - Re: [PATCH 5/6] Drivers: net: hyperv: Enable send side checksum offload

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Date:	Thu, 06 Mar 2014 14:33:54 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	kys@...rosoft.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	jasowang@...hat.com
Subject: Re: [PATCH 5/6] Drivers: net: hyperv: Enable send side checksum
 offload

From: "K. Y. Srinivasan" <kys@...rosoft.com>
Date: Thu,  6 Mar 2014 03:13:09 -0800

> +bool get_net_transport_info(struct sk_buff *skb, bool *is_v4,
> +				bool *is_tcp, bool *is_udp, u32 *trans_off)
> +{

Returning so many values like this is awkward, at best.

Why not return a well defined bitmask:

#define TRANSPORT_INFO_SUCCESS	0x00000001
#define TRANSPORT_INFO_TCP	0x00000002
#define TRANSPORT_INFO_UDP	0x00000004

Then the only value you have to return by reference is trans_off.
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