IB/hfi1: Suppress gcc 7 fall-through complaints

Avoid that gcc 7 reports the following warning when building with W=1:

warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/hfi1/mad.c b/drivers/infiniband/hw/hfi1/mad.c
index 07b80fa..c01335e 100644 (file)
--- a/drivers/infiniband/hw/hfi1/mad.c
+++ b/drivers/infiniband/hw/hfi1/mad.c
@@ -711,6 +711,7 @@ static int check_mkey(struct hfi1_ibport *ibp, struct ib_mad_hdr *mad,
                        /* Bad mkey not a violation below level 2 */
                        if (ibp->rvp.mkeyprot < 2)
                                break;
+                       /* fall through */
                case IB_MGMT_METHOD_SET:
                case IB_MGMT_METHOD_TRAP_REPRESS:
                        if (ibp->rvp.mkey_violations != 0xFFFF)

diff --git a/drivers/infiniband/hw/hfi1/rc.c b/drivers/infiniband/hw/hfi1/rc.c
index e1cf0c0..8ca26e6 100644 (file)
--- a/drivers/infiniband/hw/hfi1/rc.c
+++ b/drivers/infiniband/hw/hfi1/rc.c
@@ -2175,7 +2175,7 @@ send_middle:
                        goto no_immediate_data;
                if (opcode == OP(SEND_ONLY_WITH_INVALIDATE))
                        goto send_last_inv;
-               /* FALLTHROUGH for SEND_ONLY_WITH_IMMEDIATE */
+               /* FALLTHROUGH -- for SEND_ONLY_WITH_IMMEDIATE */
        case OP(SEND_LAST_WITH_IMMEDIATE):
 send_last_imm:
                wc.ex.imm_data = ohdr->u.imm_data;

diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index e7df779..961507b 100644 (file)
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -2593,7 +2593,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
                         * 7220, e.g.
                         */
                        ss->go_s99_running = 1;
-                       /* fall through and start dma engine */
+                       /* fall through -- and start dma engine */
                case sdma_event_e10_go_hw_start:
                        /* This reference means the state machine is started */
                        sdma_get(&sde->state);
@@ -3016,6 +3016,7 @@ static void __sdma_process_event(struct sdma_engine *sde,
                case sdma_event_e60_hw_halted:
                        need_progress = 1;
                        sdma_err_progress_check_schedule(sde);
+                       /* fall through */
                case sdma_event_e90_sw_halted:
                        /*
                        * SW initiated halt does not perform engines