OpenCloudOS-Kernel/drivers/infiniband
Nicolas Dichtel f15ca723c1 net: don't call update_pmtu unconditionally
Some dst_ops (e.g. md_dst_ops)) doesn't set this handler. It may result to:
"BUG: unable to handle kernel NULL pointer dereference at           (null)"

Let's add a helper to check if update_pmtu is available before calling it.

Fixes: 52a589d51f ("geneve: update skb dst pmtu on tx path")
Fixes: a93bf0ff44 ("vxlan: update skb dst pmtu on tx path")
CC: Roman Kapl <code@rkapl.cz>
CC: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-25 16:27:34 -05:00
..
core Fourth pull request for 4.15-rc 2018-01-08 16:17:31 -08:00
hw Fifth pull request for 4.15-rc 2018-01-16 16:47:40 -08:00
sw Merge branch 'akpm' (patches from Andrew) 2017-11-15 19:42:40 -08:00
ulp net: don't call update_pmtu unconditionally 2018-01-25 16:27:34 -05:00
Kconfig IB: INFINIBAND should depend on HAS_DMA 2017-11-30 16:01:28 -07:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00