Messages in this thread | | | Date | Thu, 06 Mar 2014 15:48:42 -0500 (EST) | Subject | Re: [PATCH 5/6] Drivers: net: hyperv: Enable send side checksum offload | From | David Miller <> |
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From: KY Srinivasan <kys@microsoft.com> Date: Thu, 6 Mar 2014 20:29:13 +0000
> > >> -----Original Message----- >> From: David Miller [mailto:davem@davemloft.net] >> Sent: Friday, March 7, 2014 1:04 AM >> To: KY Srinivasan >> Cc: netdev@vger.kernel.org; linux-kernel@vger.kernel.org; >> devel@linuxdriverproject.org; olaf@aepfle.de; apw@canonical.com; >> jasowang@redhat.com >> Subject: Re: [PATCH 5/6] Drivers: net: hyperv: Enable send side checksum >> offload >> >> From: "K. Y. Srinivasan" <kys@microsoft.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. > > I also need information on the IP version as well. If it is ok with you, I will use the return > value to get information on the network protocol and return information on transport via > reference - protocol and the offset.
Just add "TRANSPORT_INFO_IPv4" as another bitmask in the return value.
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