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Message-ID: <20181017042057.GA17636@embeddedor.com>
Date: Wed, 17 Oct 2018 06:20:57 +0200
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: James Smart <james.smart@...adcom.com>,
Dick Kennedy <dick.kennedy@...adcom.com>,
"James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] scsi: lpfc: Mark expected switch fall-throughs
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Addresses-Coverity-ID: 1357351 ("Missing break in switch")
Addresses-Coverity-ID: 1357392 ("Missing break in switch")
Addresses-Coverity-ID: 114976 ("Missing break in switch")
Addresses-Coverity-ID: 114977 ("Missing break in switch")
Addresses-Coverity-ID: 114978 ("Missing break in switch")
Addresses-Coverity-ID: 114979 ("Missing break in switch")
Addresses-Coverity-ID: 114980 ("Missing break in switch")
Addresses-Coverity-ID: 1446506 ("Missing break in switch")
Addresses-Coverity-ID: 1446507 ("Missing break in switch")
Addresses-Coverity-ID: 201378 ("Missing break in switch")
Addresses-Coverity-ID: 1324069 ("Missing break in switch")
Addresses-Coverity-ID: 1324066 ("Missing break in switch")
Addresses-Coverity-ID: 1357419 ("Missing break in switch")
Addresses-Coverity-ID: 703385 ("Missing break in switch")
Addresses-Coverity-ID: 1129236 ("Missing break in switch")
Addresses-Coverity-ID: 1375910 ("Missing break in switch")
Addresses-Coverity-ID: 1271175 ("Missing break in switch")
Addresses-Coverity-ID: 1129237 ("Missing break in switch")
Addresses-Coverity-ID: 1357437 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
drivers/scsi/lpfc/lpfc_ct.c | 2 ++
drivers/scsi/lpfc/lpfc_els.c | 1 +
drivers/scsi/lpfc/lpfc_hbadisc.c | 4 +++-
drivers/scsi/lpfc/lpfc_nportdisc.c | 1 +
drivers/scsi/lpfc/lpfc_nvme.c | 1 +
drivers/scsi/lpfc/lpfc_scsi.c | 8 ++++----
drivers/scsi/lpfc/lpfc_sli.c | 18 ++++++++++--------
7 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 789ad15..9ac4551 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -2839,6 +2839,7 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
case SLI_MGMT_GHAT:
case SLI_MGMT_GRPL:
rsp_size = FC_MAX_NS_RSP;
+ /* Fall through */
case SLI_MGMT_DHBA:
case SLI_MGMT_DHAT:
pe = (struct lpfc_fdmi_port_entry *)&CtReq->un.PortID;
@@ -2851,6 +2852,7 @@ lpfc_fdmi_cmd(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
case SLI_MGMT_GPAT:
case SLI_MGMT_GPAS:
rsp_size = FC_MAX_NS_RSP;
+ /* Fall through */
case SLI_MGMT_DPRT:
case SLI_MGMT_DPA:
pe = (struct lpfc_fdmi_port_entry *)&CtReq->un.PortID;
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index f1c1faa..325d3ca 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -8500,6 +8500,7 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
lpfc_nlp_put(ndlp);
return;
}
+ /* fall through */
default:
/* Try to recover from this error */
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index f9a038ec..6d497aa 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -4586,9 +4586,11 @@ lpfc_check_sli_ndlp(struct lpfc_hba *phba,
case CMD_GEN_REQUEST64_CR:
if (iocb->context_un.ndlp == ndlp)
return 1;
+ /* fall through */
case CMD_ELS_REQUEST64_CR:
if (icmd->un.elsreq64.remoteID == ndlp->nlp_DID)
return 1;
+ /* fall through */
case CMD_XMIT_ELS_RSP64_CX:
if (iocb->context1 == (uint8_t *) ndlp)
return 1;
@@ -5734,7 +5736,7 @@ lpfc_disc_timeout_handler(struct lpfc_vport *vport)
case LPFC_LINK_UP:
lpfc_issue_clear_la(phba, vport);
- /* Drop thru */
+ /* Fall through */
case LPFC_LINK_UNKNOWN:
case LPFC_WARM_START:
case LPFC_INIT_START:
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 269808e..d001931 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -360,6 +360,7 @@ lpfc_rcv_plogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
case NLP_STE_NPR_NODE:
if (!(ndlp->nlp_flag & NLP_NPR_ADISC))
break;
+ /* fall through */
case NLP_STE_REG_LOGIN_ISSUE:
case NLP_STE_PRLI_ISSUE:
case NLP_STE_UNMAPPED_NODE:
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index ba831de..942fe58 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -1115,6 +1115,7 @@ lpfc_nvme_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
lpfc_ncmd, nCmd,
lpfc_ncmd->cur_iocbq.sli4_xritag,
bf_get(lpfc_wcqe_c_xb, wcqe));
+ /* fall through */
default:
out_err:
lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_IOERR,
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 4fa6703..94b9931 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1427,7 +1427,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc,
break;
}
- /* Drop thru */
+ /* Fall through */
case SCSI_PROT_WRITE_INSERT:
/*
* For WRITE_INSERT, force the error
@@ -1546,7 +1546,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc,
rc = BG_ERR_TGT | BG_ERR_CHECK;
break;
}
- /* Drop thru */
+ /* Fall through */
case SCSI_PROT_WRITE_INSERT:
/*
* For WRITE_INSERT, force the
@@ -1628,7 +1628,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc,
switch (op) {
case SCSI_PROT_WRITE_PASS:
rc = BG_ERR_CHECK;
- /* Drop thru */
+ /* Fall through */
case SCSI_PROT_WRITE_INSERT:
/*
@@ -4115,7 +4115,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
lpfc_cmd->cur_iocbq.sli4_lxritag,
0, 0);
}
- /* else: fall through */
+ /* fall through */
default:
cmd->result = DID_ERROR << 16;
break;
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index c378230..56f88a8 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -9324,6 +9324,7 @@ 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;
@@ -13451,6 +13452,7 @@ 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);
@@ -13487,7 +13489,7 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
atomic_read(&tgtp->rcv_fcp_cmd_out),
atomic_read(&tgtp->xmt_fcp_release));
}
- /* fallthrough */
+ /* fall through */
case FC_STATUS_INSUFF_BUF_NEED_BUF:
hrq->RQ_no_posted_buf++;
@@ -13853,7 +13855,7 @@ 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);
@@ -14763,7 +14765,7 @@ 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);
@@ -14907,7 +14909,7 @@ 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);
@@ -15076,7 +15078,7 @@ 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);
@@ -15348,7 +15350,7 @@ 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,
@@ -15767,7 +15769,7 @@ 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,
@@ -15904,7 +15906,7 @@ 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,
--
2.7.4
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