From: Karsten Graul <kgraul@xxxxxxxxxxxxx> For robustness protect of higher port numbers than expected to avoid setting bits behind our port_event_mask. In case of an DEVICE_FATAL event all ports must be checked. The IB_EVENT_GID_CHANGE event is provided in the global event handler, so handle it there. And handle a QP_FATAL event instead of an DEVICE_FATAL event in the qp handler. Signed-off-by: Karsten Graul <kgraul@xxxxxxxxxxxxx> Signed-off-by: Ursula Braun <ubraun@xxxxxxxxxxxxx> --- net/smc/smc_ib.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c index 76487a16934e..0b244be24fe0 100644 --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -257,12 +257,20 @@ static void smc_ib_global_event_handler(struct ib_event_handler *handler, smcibdev = container_of(handler, struct smc_ib_device, event_handler); switch (ibevent->event) { - case IB_EVENT_PORT_ERR: case IB_EVENT_DEVICE_FATAL: + /* terminate all ports on device */ + for (port_idx = 0; port_idx < SMC_MAX_PORTS; port_idx++) + set_bit(port_idx, &smcibdev->port_event_mask); + schedule_work(&smcibdev->port_event_work); + break; + case IB_EVENT_PORT_ERR: case IB_EVENT_PORT_ACTIVE: + case IB_EVENT_GID_CHANGE: port_idx = ibevent->element.port_num - 1; - set_bit(port_idx, &smcibdev->port_event_mask); - schedule_work(&smcibdev->port_event_work); + if (port_idx < SMC_MAX_PORTS) { + set_bit(port_idx, &smcibdev->port_event_mask); + schedule_work(&smcibdev->port_event_work); + } break; default: break; @@ -294,13 +302,13 @@ static void smc_ib_qp_event_handler(struct ib_event *ibevent, void *priv) u8 port_idx; switch (ibevent->event) { - case IB_EVENT_DEVICE_FATAL: - case IB_EVENT_GID_CHANGE: - case IB_EVENT_PORT_ERR: + case IB_EVENT_QP_FATAL: case IB_EVENT_QP_ACCESS_ERR: port_idx = ibevent->element.qp->port - 1; - set_bit(port_idx, &smcibdev->port_event_mask); - schedule_work(&smcibdev->port_event_work); + if (port_idx < SMC_MAX_PORTS) { + set_bit(port_idx, &smcibdev->port_event_mask); + schedule_work(&smcibdev->port_event_work); + } break; default: break; -- 2.16.4