Yangbo Lu c4b364ce12 net: dsa: free skb->cb usage in core driver ...

Free skb->cb usage in core driver and let device drivers decide to
use or not. The reason having a DSA_SKB_CB(skb)->clone was because
dsa_skb_tx_timestamp() which may set the clone pointer was called
before p->xmit() which would use the clone if any, and the device
driver has no way to initialize the clone pointer.

This patch just put memset(skb->cb, 0, sizeof(skb->cb)) at beginning
of dsa_slave_xmit(). Some new features in the future, like one-step
timestamp may need more bytes of skb->cb to use in
dsa_skb_tx_timestamp(), and p->xmit().

Signed-off-by: Yangbo Lu <[email protected]>
Acked-by: Richard Cochran <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

2021-04-27 14:10:15 -07:00

..

8021q.h

net: dsa: tag_8021q: add helpers to deduce whether a VLAN ID is RX or TX VLAN

2021-01-29 21:24:30 -08:00

brcm.h

net: dsa: move the Broadcom tag information in a separate header file

2021-01-07 15:42:07 -08:00

lan9303.h

net: dsa: lan9303: phy_addr_sel_strap rename and retype

2018-01-04 13:35:07 -05:00

loop.h

net: dsa: loop: Wire-up MTU callbacks

2020-08-03 18:19:23 -07:00

ocelot.h

net: ocelot: Remove ocelot_xfh_get_cpuq

2021-03-16 15:49:52 -07:00

sja1105.h

net: dsa: free skb->cb usage in core driver

2021-04-27 14:10:15 -07:00