Majd Dibbiny d3957b86a4 RDMA/SA: Fix kernel panic in CMA request handler flow ... Commit 9fdca4da4d (IB/SA: Split struct sa_path_rec based on IB and ROCE specific fields) moved the service_id to be specific attribute for IB and OPA SA Path Record, and thus wasn't assigned for RoCE. This caused to the following kernel panic in the CMA request handler flow: [ 27.074594] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 27.074731] IP: __radix_tree_lookup+0x1d/0xe0 ... [ 27.075356] Workqueue: ib_cm cm_work_handler [ib_cm] [ 27.075401] task: ffff88022e3b8000 task.stack: ffffc90001298000 [ 27.075449] RIP: 0010:__radix_tree_lookup+0x1d/0xe0 ... [ 27.075979] Call Trace: [ 27.076015] radix_tree_lookup+0xd/0x10 [ 27.076055] cma_ps_find+0x59/0x70 [rdma_cm] [ 27.076097] cma_id_from_event+0xd2/0x470 [rdma_cm] [ 27.076144] ? ib_init_ah_from_path+0x39a/0x590 [ib_core] [ 27.076193] cma_req_handler+0x25/0x480 [rdma_cm] [ 27.076237] cm_process_work+0x25/0x120 [ib_cm] [ 27.076280] ? cm_get_bth_pkey.isra.62+0x3c/0xa0 [ib_cm] [ 27.076350] cm_req_handler+0xb03/0xd40 [ib_cm] [ 27.076430] ? sched_clock_cpu+0x11/0xb0 [ 27.076478] cm_work_handler+0x194/0x1588 [ib_cm] [ 27.076525] process_one_work+0x160/0x410 [ 27.076565] worker_thread+0x137/0x4a0 [ 27.076614] kthread+0x112/0x150 [ 27.076684] ? max_active_store+0x60/0x60 [ 27.077642] ? kthread_park+0x90/0x90 [ 27.078530] ret_from_fork+0x2c/0x40 This patch moves it back to the common SA Path Record structure and removes the redundant setter and getter. Tested on Connect-IB and Connect-X4 in Infiniband and RoCE respectively. Fixes: 9fdca4da4d (IB/SA: Split struct sa_path_rec based on IB ands ROCE specific fields) Signed-off-by: Majd Dibbiny <majd@mellanox.com> Reviewed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>		2017-06-01 17:20:14 -04:00
..
Kbuild	IB: Add SCSI RDMA Protocol (SRP) initiator	2005-11-02 14:07:13 -08:00
Kconfig	[SCSI] ib_srp: convert to use the srp transport class	2007-10-12 14:37:42 -04:00
ib_srp.c	RDMA/SA: Fix kernel panic in CMA request handler flow	2017-06-01 17:20:14 -04:00
ib_srp.h	IB/SA: Rename ib_sa_path_rec to sa_path_rec	2017-05-01 14:37:28 -04:00