Oliver Hartkopp d3b58c47d3 can: replace timestamp as unique skb attribute ... Commit 514ac99c64 "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. Without timestamping to be required by user space applications this timestamp was not generated which lead to commit 36c01245eb "can: fix loss of CAN frames in raw_rcv" - which forces the timestamp to be set in all CAN related skbuffs by introducing several __net_timestamp() calls. This forces e.g. out of tree drivers which are not using alloc_can{,fd}_skb() to add __net_timestamp() after skbuff creation to prevent the frame loss fixed in mainline Linux. This patch removes the timestamp dependency and uses an atomic counter to create an unique identifier together with the skbuff pointer. Btw: the new skbcnt element introduced in struct can_skb_priv has to be initialized with zero in out-of-tree drivers which are not using alloc_can{,fd}_skb() too. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>		2015-07-12 21:13:22 +02:00
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platform	can: unify identifiers to ensure unique include processing	2014-05-19 09:38:24 +02:00
core.h	can: unify identifiers to ensure unique include processing	2014-05-19 09:38:24 +02:00
dev.h	can: add combined rx/tx LED trigger support	2015-03-22 23:50:11 +01:00
led.h	can: add combined rx/tx LED trigger support	2015-03-22 23:50:11 +01:00
skb.h	can: replace timestamp as unique skb attribute	2015-07-12 21:13:22 +02:00