IB/qib: 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>
Acked-by: Mike Marciniszyn <infinipath@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/hw/qib/qib_mad.c b/drivers/infiniband/hw/qib/qib_mad.c
index 1237952..04367e0 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_mad.c
+++ b/drivers/infiniband/hw/qib/qib_mad.c
@@ -434,6 +434,7 @@ static int check_mkey(struct qib_ibport *ibp, struct ib_smp *smp, int mad_flags)
                        /* 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/qib/qib_rc.c b/drivers/infiniband/hw/qib/qib_rc.c
index e9a9173..8f5754f 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_rc.c
+++ b/drivers/infiniband/hw/qib/qib_rc.c
@@ -1869,7 +1869,7 @@ send_middle:
                qp->r_rcv_len = 0;
                if (opcode == OP(SEND_ONLY))
                        goto no_immediate_data;
-               /* FALLTHROUGH for SEND_ONLY_WITH_IMMEDIATE */
+               /* fall through -- 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/qib/qib_sdma.c b/drivers/infiniband/hw/qib/qib_sdma.c
index 891873b..c3690bd 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_sdma.c
@@ -808,7 +808,7 @@ void __qib_sdma_process_event(struct qib_pportdata *ppd,
                         * bringing the link up with traffic active on
                         * 7220, e.g. */
                        ss->go_s99_running = 1;
-                       /* fall through and start dma engine */
+                       /* fall through -- and start dma engine */
                case qib_sdma_event_e10_go_hw_start:
                        /* This reference means the state machine is started */
                        sdma_get(&ppd->sdma_state);