target: Suppress gcc 7 fallthrough warnings

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>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Mike Christie <mchristi@redhat.com>
Cc: Varun Prakash <varun@chelsio.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

diff --git a/drivers/target/iscsi/cxgbit/cxgbit_main.c b/drivers/target/iscsi/cxgbit/cxgbit_main.c
index 4fd775ace541a978b258fc8f3b26f3c8108c23f3..f3f8856bfb68e8446ad19a0bf8156217f42cacab 100644 (file)
--- a/drivers/target/iscsi/cxgbit/cxgbit_main.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_main.c
@@ -446,6 +446,7 @@ cxgbit_uld_lro_rx_handler(void *hndl, const __be64 *rsp,
        case CPL_RX_ISCSI_DDP:
        case CPL_FW4_ACK:
                lro_flush = false;
+               /* fall through */
        case CPL_ABORT_RPL_RSS:
        case CPL_PASS_ESTABLISH:
        case CPL_PEER_CLOSE:

diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 3d2b46472dfdc7147844afa24267284ec81ae606..b024613f921718a40c761ea0f8eb7befe28dd168 100644 (file)
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -353,6 +353,7 @@ static int core_scsi3_pr_seq_non_holder(struct se_cmd *cmd, u32 pr_reg_type,
                break;
        case PR_TYPE_WRITE_EXCLUSIVE_REGONLY:
                we = 1;
+               /* fall through */
        case PR_TYPE_EXCLUSIVE_ACCESS_REGONLY:
                /*
                 * Some commands are only allowed for registered I_T Nexuses.
@@ -361,6 +362,7 @@ static int core_scsi3_pr_seq_non_holder(struct se_cmd *cmd, u32 pr_reg_type,
                break;
        case PR_TYPE_WRITE_EXCLUSIVE_ALLREG:
                we = 1;
+               /* fall through */
        case PR_TYPE_EXCLUSIVE_ACCESS_ALLREG:
                /*
                 * Each registered I_T Nexus is a reservation holder.

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index e791a7b63382e1123f059062bffbd6bc27c2562e..e2bf547054bd217eed33df72289bf4f4addc1173 100644 (file)
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2092,7 +2092,7 @@ static void transport_complete_qf(struct se_cmd *cmd)
                        ret = cmd->se_tfo->queue_data_in(cmd);
                        break;
                }
-               /* Fall through for DMA_TO_DEVICE */
+               /* fall through */
        case DMA_NONE:
 queue_status:
                trace_target_cmd_complete(cmd);
@@ -2270,7 +2270,7 @@ queue_rsp:
                                goto queue_full;
                        break;
                }
-               /* Fall through for DMA_TO_DEVICE */
+               /* fall through */
        case DMA_NONE:
 queue_status:
                trace_target_cmd_complete(cmd);