Zhu Yanjun 9fd4350ba8 IB/rxe: avoid double kfree_skb ... When skb is sent, it will pass the following functions in soft roce. rxe_send [rdma_rxe] ip_local_out __ip_local_out ip_output ip_finish_output ip_finish_output2 dev_queue_xmit __dev_queue_xmit dev_hard_start_xmit In the above functions, if error occurs in the above functions or iptables rules drop skb after ip_local_out, kfree_skb will be called. So it is not necessary to call kfree_skb in soft roce module again. Or else crash will occur. The steps to reproduce: server client --------- --------- |1.1.1.1|<----rxe-channel--->|1.1.1.2| --------- --------- On server: rping -s -a 1.1.1.1 -v -C 10000 -S 512 On client: rping -c -a 1.1.1.1 -v -C 10000 -S 512 The kernel configs CONFIG_DEBUG_KMEMLEAK and CONFIG_DEBUG_OBJECTS are enabled on both server and client. When rping runs, run the following command in server: iptables -I OUTPUT -p udp --dport 4791 -j DROP Without this patch, crash will occur. CC: Srinivas Eeda <srinivas.eeda@oracle.com> CC: Junxiao Bi <junxiao.bi@oracle.com> Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>		2018-04-27 14:20:47 -04:00
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core	RDMA/iwpm: fix memory leak on map_info	2018-04-27 14:20:47 -04:00
hw	IB/nes: fix nes_netdev_start_xmit()'s return type	2018-04-27 14:07:30 -04:00
sw	IB/rxe: avoid double kfree_skb	2018-04-27 14:20:47 -04:00
ulp	IB/ipoib: fix ipoib_start_xmit()'s return type	2018-04-27 14:07:30 -04:00
Kconfig	IB: make INFINIBAND_ADDR_TRANS configurable	2018-04-27 11:15:44 -04:00
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