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authorPaul Durrant <Paul.Durrant@citrix.com>2016-10-07 09:32:31 +0100
committerDavid S. Miller <davem@davemloft.net>2016-10-07 23:52:33 -0400
commit912e27e85e070596ed4964ebde29fa9781390f2a (patch)
treedba537c23128bb30cba34fb2453edb6752e03102 /Documentation/input/atarikbd.txt
parent21d9629a7abd87512d062fbe57b04a1baedf93d2 (diff)
xen-netback: make sure that hashes are not send to unaware frontends
In the case when a frontend only negotiates a single queue with xen- netback it is possible for a skbuff with a s/w hash to result in a hash extra_info segment being sent to the frontend even when no hash algorithm has been configured. (The ndo_select_queue() entry point makes sure the hash is not set if no algorithm is configured, but this entry point is not called when there is only a single queue). This can result in a frontend that is unable to handle extra_info segments being given such a segment, causing it to crash. This patch fixes the problem by clearing the hash in ndo_start_xmit() instead, which is clearly guaranteed to be called irrespective of the number of queues. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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