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scsi: ibmvfc: Mark expected switch fall-throughs 

Mark switch cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/scsi/ibmvscsi/ibmvfc.c: In function 'ibmvfc_npiv_login_done':
drivers/scsi/ibmvscsi/ibmvfc.c:4022:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   ibmvfc_retry_host_init(vhost);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ibmvscsi/ibmvfc.c:4023:2: note: here
  case IBMVFC_MAD_DRIVER_FAILED:
  ^~~~
drivers/scsi/ibmvscsi/ibmvfc.c: In function 'ibmvfc_bsg_request':
drivers/scsi/ibmvscsi/ibmvfc.c:1830:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
   port_id = (bsg_request->rqst_data.h_els.port_id[0] << 16) |
   ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    (bsg_request->rqst_data.h_els.port_id[1] << 8) |
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    bsg_request->rqst_data.h_els.port_id[2];
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ibmvscsi/ibmvfc.c:1833:2: note: here
  case FC_BSG_RPT_ELS:
  ^~~~
drivers/scsi/ibmvscsi/ibmvfc.c:1838:11: warning: this statement may fall through [-Wimplicit-fallthrough=]
   port_id = (bsg_request->rqst_data.h_ct.port_id[0] << 16) |
   ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    (bsg_request->rqst_data.h_ct.port_id[1] << 8) |
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    bsg_request->rqst_data.h_ct.port_id[2];
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/ibmvscsi/ibmvfc.c:1841:2: note: here
  case FC_BSG_RPT_CT:
  ^~~~

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Gustavo A. R. Silva 2019-07-28 19:26:08 -05:00 committed by Martin K. Petersen
parent e5460f084b
commit 4c73598732
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/ibmvscsi/ibmvfc.c
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@ -1830,6 +1830,7 @@ static int ibmvfc_bsg_request(struct bsg_job *job)
port_id = (bsg_request->rqst_data.h_els.port_id[0] << 16) |
(bsg_request->rqst_data.h_els.port_id[1] << 8) |
bsg_request->rqst_data.h_els.port_id[2];
/* fall through */
case FC_BSG_RPT_ELS:
fc_flags = IBMVFC_FC_ELS;
break;
@ -1838,6 +1839,7 @@ static int ibmvfc_bsg_request(struct bsg_job *job)
port_id = (bsg_request->rqst_data.h_ct.port_id[0] << 16) |
(bsg_request->rqst_data.h_ct.port_id[1] << 8) |
bsg_request->rqst_data.h_ct.port_id[2];
/* fall through */
case FC_BSG_RPT_CT:
fc_flags = IBMVFC_FC_CT_IU;
break;
@ -4020,6 +4022,7 @@ static void ibmvfc_npiv_login_done(struct ibmvfc_event *evt)
return;
case IBMVFC_MAD_CRQ_ERROR:
ibmvfc_retry_host_init(vhost);
/* fall through */
case IBMVFC_MAD_DRIVER_FAILED:
ibmvfc_free_event(evt);
return;