scsi: lpfc: lpfc_sli: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases where
we are expecting to fall through.

Notice that, in this particular case, I replaced "Drop thru" and "Fall
Thru" with "fall through" annotations, which is what GCC is expecting to
find.

Also, in some cases a dash is added as a token in order to separate the
"fall through" annotation from the rest of the comment on the same line,
which is what GCC is expecting to find.

Addresses-Coverity-ID: 114979 ("Missing break in switch")
Addresses-Coverity-ID: 114980 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 30734caf77e12f9c7311355c801f804207bb6f1d..3ac5cc1a0cd99127c3e53e8dafe2e8256bd470ff 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -9408,6 +9408,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
                cmnd = CMD_XMIT_SEQUENCE64_CR;
                if (phba->link_flag & LS_LOOPBACK_MODE)
                        bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
+               /* fall through */
        case CMD_XMIT_SEQUENCE64_CR:
                /* word3 iocb=io_tag32 wqe=reserved */
                wqe->xmit_sequence.rsvd3 = 0;
@@ -13529,6 +13530,7 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
        case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
                                "2537 Receive Frame Truncated!!\n");
+               /* fall through */
        case FC_STATUS_RQ_SUCCESS:
                spin_lock_irqsave(&phba->hbalock, iflags);
                lpfc_sli4_rq_release(hrq, drq);
@@ -13938,7 +13940,7 @@ lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
        case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
                                "6126 Receive Frame Truncated!!\n");
-               /* Drop thru */
+               /* fall through */
        case FC_STATUS_RQ_SUCCESS:
                spin_lock_irqsave(&phba->hbalock, iflags);
                lpfc_sli4_rq_release(hrq, drq);
@@ -14850,7 +14852,7 @@ lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
                                eq->entry_count);
                if (eq->entry_count < 256)
                        return -EINVAL;
-               /* otherwise default to smallest count (drop through) */
+               /* fall through - otherwise default to smallest count */
        case 256:
                bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
                       LPFC_EQ_CNT_256);
@@ -14981,7 +14983,7 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
                               LPFC_CQ_CNT_WORD7);
                        break;
                }
-               /* Fall Thru */
+               /* fall through */
        default:
                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
                                "0361 Unsupported CQ count: "
@@ -14992,7 +14994,7 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
                        status = -EINVAL;
                        goto out;
                }
-               /* otherwise default to smallest count (drop through) */
+               /* fall through - otherwise default to smallest count */
        case 256:
                bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
                       LPFC_CQ_CNT_256);
@@ -15152,7 +15154,7 @@ lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
                                               LPFC_CQ_CNT_WORD7);
                                        break;
                                }
-                               /* Fall Thru */
+                               /* fall through */
                        default:
                                lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
                                                "3118 Bad CQ count. (%d)\n",
@@ -15161,7 +15163,7 @@ lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
                                        status = -EINVAL;
                                        goto out;
                                }
-                               /* otherwise default to smallest (drop thru) */
+                               /* fall through - otherwise default to smallest */
                        case 256:
                                bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
                                       &cq_set->u.request, LPFC_CQ_CNT_256);
@@ -15433,7 +15435,7 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
                        status = -EINVAL;
                        goto out;
                }
-               /* otherwise default to smallest count (drop through) */
+               /* fall through - otherwise default to smallest count */
        case 16:
                bf_set(lpfc_mq_context_ring_size,
                       &mq_create_ext->u.request.context,
@@ -15852,7 +15854,7 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
                                status = -EINVAL;
                                goto out;
                        }
-                       /* otherwise default to smallest count (drop through) */
+                       /* fall through - otherwise default to smallest count */
                case 512:
                        bf_set(lpfc_rq_context_rqe_count,
                               &rq_create->u.request.context,
@@ -15989,7 +15991,7 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
                                status = -EINVAL;
                                goto out;
                        }
-                       /* otherwise default to smallest count (drop through) */
+                       /* fall through - otherwise default to smallest count */
                case 512:
                        bf_set(lpfc_rq_context_rqe_count,
                               &rq_create->u.request.context,