linux-kernel - Re: [PATCH 11/41] scsi: bfa: bfa_fcs_rport: Mark expected switch fall-throughs

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Message-ID: <d81468df-1de5-8aaf-9c7b-ce490a358bea@embeddedor.com>
Date:   Wed, 19 Dec 2018 09:39:19 -0600
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Anil Gurumurthy <anil.gurumurthy@...gic.com>,
        Sudarsana Kalluru <sudarsana.kalluru@...gic.com>
Cc:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/41] scsi: bfa: bfa_fcs_rport: Mark expected switch
 fall-throughs

Hi,

Friendly ping:

Who can ack or review this patch, please?

Thanks
--
Gustavo

On 11/27/18 10:27 PM, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
> 
> Notice that I replaced "!! fall through !!" and "!!! fall through !!!"
> comments with "fall through" annotations, which is what GCC is
> expecting to find.
> 
> Addresses-Coverity-ID: 744899 ("Missing break in switch")
> Addresses-Coverity-ID: 744900 ("Missing break in switch")
> Addresses-Coverity-ID: 744901 ("Missing break in switch")
> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
> ---
>   drivers/scsi/bfa/bfa_fcs_rport.c | 19 +++++++------------
>   1 file changed, 7 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/scsi/bfa/bfa_fcs_rport.c b/drivers/scsi/bfa/bfa_fcs_rport.c
> index de50349a39ce..1e400f2aaece 100644
> --- a/drivers/scsi/bfa/bfa_fcs_rport.c
> +++ b/drivers/scsi/bfa/bfa_fcs_rport.c
> @@ -427,17 +427,13 @@ bfa_fcs_rport_sm_plogi(struct bfa_fcs_rport_s *rport, enum rport_event event)
>   
>   	case RPSM_EVENT_LOGO_RCVD:
>   		bfa_fcs_rport_send_logo_acc(rport);
> -		/*
> -		 * !! fall through !!
> -		 */
> +		/* fall through */
>   	case RPSM_EVENT_PRLO_RCVD:
>   		if (rport->prlo == BFA_TRUE)
>   			bfa_fcs_rport_send_prlo_acc(rport);
>   
>   		bfa_fcxp_discard(rport->fcxp);
> -		/*
> -		 * !! fall through !!
> -		 */
> +		/* fall through */
>   	case RPSM_EVENT_FAILED:
>   		if (rport->plogi_retries < BFA_FCS_RPORT_MAX_RETRIES) {
>   			rport->plogi_retries++;
> @@ -868,9 +864,7 @@ bfa_fcs_rport_sm_adisc_online(struct bfa_fcs_rport_s *rport,
>   		 * At least go offline when a PLOGI is received.
>   		 */
>   		bfa_fcxp_discard(rport->fcxp);
> -		/*
> -		 * !!! fall through !!!
> -		 */
> +		/* fall through */
>   
>   	case RPSM_EVENT_FAILED:
>   	case RPSM_EVENT_ADDRESS_CHANGE:
> @@ -1056,6 +1050,7 @@ bfa_fcs_rport_sm_fc4_logosend(struct bfa_fcs_rport_s *rport,
>   
>   	case RPSM_EVENT_LOGO_RCVD:
>   		bfa_fcs_rport_send_logo_acc(rport);
> +		/* fall through */
>   	case RPSM_EVENT_PRLO_RCVD:
>   		if (rport->prlo == BFA_TRUE)
>   			bfa_fcs_rport_send_prlo_acc(rport);
> @@ -1144,9 +1139,7 @@ bfa_fcs_rport_sm_hcb_offline(struct bfa_fcs_rport_s *rport,
>   			bfa_fcs_rport_send_plogiacc(rport, NULL);
>   			break;
>   		}
> -		/*
> -		 * !! fall through !!
> -		 */
> +		/* fall through */
>   
>   	case RPSM_EVENT_ADDRESS_CHANGE:
>   		if (!bfa_fcs_lport_is_online(rport->port)) {
> @@ -1303,6 +1296,7 @@ bfa_fcs_rport_sm_hcb_logosend(struct bfa_fcs_rport_s *rport,
>   
>   	case RPSM_EVENT_LOGO_RCVD:
>   		bfa_fcs_rport_send_logo_acc(rport);
> +		/* fall through */
>   	case RPSM_EVENT_PRLO_RCVD:
>   		if (rport->prlo == BFA_TRUE)
>   			bfa_fcs_rport_send_prlo_acc(rport);
> @@ -1346,6 +1340,7 @@ bfa_fcs_rport_sm_logo_sending(struct bfa_fcs_rport_s *rport,
>   
>   	case RPSM_EVENT_LOGO_RCVD:
>   		bfa_fcs_rport_send_logo_acc(rport);
> +		/* fall through */
>   	case RPSM_EVENT_PRLO_RCVD:
>   		if (rport->prlo == BFA_TRUE)
>   			bfa_fcs_rport_send_prlo_acc(rport);
>