On 06/21/2015 06:50 PM, Oliver Hartkopp wrote: > As reported by Manfred Schlaegl here > > http://marc.info/?l=linux-netdev&m=143482089824232&w=2 > > commit 514ac99c64b "can: fix multiple delivery of a single CAN frame for > overlapping CAN filters" requires the skb->tstamp to be set to check for > identical CAN skbs. > > As net timestamping is influenced by several players (netstamp_needed and > netdev_tstamp_prequeue) Manfred missed a proper timestamp which leads to > CAN frame loss. > > As skb timestamping became now mandatory for CAN related skbs this patch > makes sure that received CAN skbs always have a proper timestamp set. > Maybe there's a better solution in the future but this patch fixes the > CAN frame loss so far. > > Reported-by: Manfred Schlaegl <manfred.schla...@gmx.at> > Signed-off-by: Oliver Hartkopp <socket...@hartkopp.net>
I'll send a pullrequest to David asap, I'll add stable on Cc if this doesn't make it into v4.1 anymore. Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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