diff mbox series

NFC: pn533: mark expected switch fall-throughs

Message ID 20190213185741.GA5047@embeddedor (mailing list archive)
State Deferred
Delegated to: Samuel Ortiz
Headers show
Series NFC: pn533: mark expected switch fall-throughs | expand

Commit Message

Gustavo A. R. Silva Feb. 13, 2019, 6:57 p.m. UTC
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/nfc/pn533/pn533.c: In function ‘pn533_transceive’:
drivers/nfc/pn533/pn533.c:2142:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
      ^
drivers/nfc/pn533/pn533.c:2150:2: note: here
  default:
  ^~~~~~~
drivers/nfc/pn533/pn533.c: In function ‘pn533_wq_mi_recv’:
drivers/nfc/pn533/pn533.c:2267:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
      ^
drivers/nfc/pn533/pn533.c:2276:2: note: here
  default:
  ^~~~~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Addresses-Coverity-ID: 1230487 ("Missing break in switch")
Addresses-Coverity-ID: 1230488 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/nfc/pn533/pn533.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Gustavo A. R. Silva March 20, 2019, 7:21 p.m. UTC | #1
Hi all,

If no one cares, I'll add this to my tree for 5.2

Thanks
--
Gustavo

On 2/13/19 12:57 PM, Gustavo A. R. Silva wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warnings:
> 
> drivers/nfc/pn533/pn533.c: In function ‘pn533_transceive’:
> drivers/nfc/pn533/pn533.c:2142:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
>       ^
> drivers/nfc/pn533/pn533.c:2150:2: note: here
>   default:
>   ^~~~~~~
> drivers/nfc/pn533/pn533.c: In function ‘pn533_wq_mi_recv’:
> drivers/nfc/pn533/pn533.c:2267:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
>       ^
> drivers/nfc/pn533/pn533.c:2276:2: note: here
>   default:
>   ^~~~~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
> 
> Addresses-Coverity-ID: 1230487 ("Missing break in switch")
> Addresses-Coverity-ID: 1230488 ("Missing break in switch")
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> ---
>  drivers/nfc/pn533/pn533.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
> index a0cc1cc45292..5961f14259e5 100644
> --- a/drivers/nfc/pn533/pn533.c
> +++ b/drivers/nfc/pn533/pn533.c
> @@ -2147,6 +2147,7 @@ static int pn533_transceive(struct nfc_dev *nfc_dev,
>  
>  			break;
>  		}
> +		/* fall through */
>  	default:
>  		/* jumbo frame ? */
>  		if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
> @@ -2273,6 +2274,7 @@ static void pn533_wq_mi_recv(struct work_struct *work)
>  
>  			break;
>  		}
> +		/* fall through */
>  	default:
>  		skb_put_u8(skb, 1); /*TG*/
>  
>
Kees Cook April 9, 2019, 4:29 p.m. UTC | #2
On Wed, Feb 13, 2019 at 10:57 AM Gustavo A. R. Silva
<gustavo@embeddedor.com> wrote:
>
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
>
> This patch fixes the following warnings:
>
> drivers/nfc/pn533/pn533.c: In function ‘pn533_transceive’:
> drivers/nfc/pn533/pn533.c:2142:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
>       ^
> drivers/nfc/pn533/pn533.c:2150:2: note: here
>   default:
>   ^~~~~~~
> drivers/nfc/pn533/pn533.c: In function ‘pn533_wq_mi_recv’:
> drivers/nfc/pn533/pn533.c:2267:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
>    if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
>       ^
> drivers/nfc/pn533/pn533.c:2276:2: note: here
>   default:
>   ^~~~~~~
>
> Warning level 3 was used: -Wimplicit-fallthrough=3
>
> This patch is part of the ongoing efforts to enable
> -Wimplicit-fallthrough.
>
> Addresses-Coverity-ID: 1230487 ("Missing break in switch")
> Addresses-Coverity-ID: 1230488 ("Missing break in switch")
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Reviewed-by: Kees Cook <keescook@chromium.org>
diff mbox series

Patch

diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index a0cc1cc45292..5961f14259e5 100644
--- a/drivers/nfc/pn533/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -2147,6 +2147,7 @@  static int pn533_transceive(struct nfc_dev *nfc_dev,
 
 			break;
 		}
+		/* fall through */
 	default:
 		/* jumbo frame ? */
 		if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
@@ -2273,6 +2274,7 @@  static void pn533_wq_mi_recv(struct work_struct *work)
 
 			break;
 		}
+		/* fall through */
 	default:
 		skb_put_u8(skb, 1); /*TG*/