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Date: Mon, 11 Aug 2014 12:17:26 -0700 (PDT) From: David Miller <davem@...emloft.net> To: vyasevic@...hat.com Cc: netdev@...r.kernel.org, kaber@...sh.net, nsujir@...adcom.com, mchan@...adcom.com, jiri@...nulli.us Subject: Re: [PATCH v2 net] net: Always untag vlan-tagged traffic on input. From: Vladislav Yasevich <vyasevic@...hat.com> Date: Fri, 8 Aug 2014 14:42:13 -0400 > Currently the functionality to untag traffic on input resides > as part of the vlan module and is build only when VLAN support > is enabled in the kernel. When VLAN is disabled, the function > vlan_untag() turns into a stub and doesn't really untag the > packets. This seems to create an interesting interaction > between VMs supporting checksum offloading and some network drivers. ... > The patch attempt to fix this another way. It moves the vlan header > stipping code out of the vlan module and always builds it into the > kernel network core. This way, even if vlan is not supported on > a virtualizatoin host, the virtual machines running on top of such > host will still work with VLANs enabled. > > CC: Patrick McHardy <kaber@...sh.net> > CC: Nithin Nayak Sujir <nsujir@...adcom.com> > CC: Michael Chan <mchan@...adcom.com> > CC: Jiri Pirko <jiri@...nulli.us> > Signed-off-by: Vladislav Yasevich <vyasevic@...hat.com> Applied and queued up for -stable, thanks Vlad. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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