Andrew Lunn 448b4482c6 net: dsa: Add lockdep class to tx queues to avoid lockdep splat ... DSA stacks an Ethernet device on top of an Ethernet device. This can cause false positive lockdep splats for the transmit queue: Acked-by: Florian Fainelli <f.fainelli@gmail.com> ============================================= [ INFO: possible recursive locking detected ] 4.0.0-rc7-01838-g70621a215fc7 #386 Not tainted --------------------------------------------- kworker/0:0/4 is trying to acquire lock: (_xmit_ETHER#2){+.-...}, at: [<c040e95c>] sch_direct_xmit+0xa8/0x1fc but task is already holding lock: (_xmit_ETHER#2){+.-...}, at: [<c03f4208>] __dev_queue_xmit+0x4d4/0x56c other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(_xmit_ETHER#2); lock(_xmit_ETHER#2); To avoid this, walk the tq queues of the dsa slaves and set a lockdep class. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-05-09 16:05:54 -04:00
..
Kconfig	net: dsa: make NET_DSA manually selectable from the config	2015-03-20 21:37:58 -04:00
Makefile	net: dsa: add Broadcom tag RX/TX handler	2014-08-27 22:59:40 -07:00
dsa.c	net: dsa: Fix scope of eeprom-length property	2015-04-29 15:35:04 -04:00
dsa_priv.h	net: dsa: integrate with SWITCHDEV for HW bridging	2015-02-25 17:03:38 -05:00
slave.c	net: dsa: Add lockdep class to tx queues to avoid lockdep splat	2015-05-09 16:05:54 -04:00
tag_brcm.c	dsa: Split ops up, and avoid assigning tag_protocol and receive separately	2014-09-15 17:24:20 -04:00
tag_dsa.c	net: dsa: Don't set skb->protocol on outgoing tagged packets	2014-10-30 14:54:10 -04:00
tag_edsa.c	net: dsa: Don't set skb->protocol on outgoing tagged packets	2014-10-30 14:54:10 -04:00
tag_trailer.c	net: dsa: Don't set skb->protocol on outgoing tagged packets	2014-10-30 14:54:10 -04:00