mtd: cfi_cmdset_0002: Mark expected switch fall-throughs

Message ID 20190208180615.GA24601@embeddedor
State New
Delegated to: Boris Brezillon
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Series
  • mtd: cfi_cmdset_0002: Mark expected switch fall-throughs
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Commit Message

Gustavo A. R. Silva Feb. 8, 2019, 6:06 p.m.
In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warnings:

drivers/mtd/chips/cfi_cmdset_0002.c: In function ‘get_chip’:
drivers/mtd/chips/cfi_cmdset_0002.c:870:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (mode == FL_READY && chip->oldstate == FL_READY)
      ^
drivers/mtd/chips/cfi_cmdset_0002.c:873:2: note: here
  default:
  ^~~~~~~
drivers/mtd/chips/cfi_cmdset_0002.c: In function ‘cfi_amdstd_sync’:
drivers/mtd/chips/cfi_cmdset_0002.c:2745:16: warning: this statement may fall through [-Wimplicit-fallthrough=]
    chip->state = FL_SYNCING;
    ~~~~~~~~~~~~^~~~~~~~~~~~
drivers/mtd/chips/cfi_cmdset_0002.c:2750:3: note: here
   case FL_SYNCING:
   ^~~~

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

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

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/mtd/chips/cfi_cmdset_0002.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Tokunori Ikegami Feb. 9, 2019, 8:29 a.m. | #1
Reviewed-by: Tokunori Ikegami <ikegami.t@gmail.com>

> -----Original Message-----
> From: linux-mtd [mailto:linux-mtd-bounces@lists.infradead.org] On Behalf
> Of Gustavo A. R. Silva
> Sent: Saturday, February 9, 2019 3:06 AM
> To: David Woodhouse; Brian Norris; Boris Brezillon; Marek Vasut; Richard
> Weinberger
> Cc: linux-mtd@lists.infradead.org; linux-kernel@vger.kernel.org; Gustavo
> A. R. Silva
> Subject: [PATCH] mtd: cfi_cmdset_0002: Mark expected switch fall-throughs
> 
> In preparation to enabling -Wimplicit-fallthrough, mark switch
> cases where we are expecting to fall through.
> 
> This patch fixes the following warnings:
> 
> drivers/mtd/chips/cfi_cmdset_0002.c: In function ‘get_chip’:
> drivers/mtd/chips/cfi_cmdset_0002.c:870:6: warning: this statement may
> fall through [-Wimplicit-fallthrough=]
>    if (mode == FL_READY && chip->oldstate == FL_READY)
>       ^
> drivers/mtd/chips/cfi_cmdset_0002.c:873:2: note: here
>   default:
>   ^~~~~~~
> drivers/mtd/chips/cfi_cmdset_0002.c: In function ‘cfi_amdstd_sync’:
> drivers/mtd/chips/cfi_cmdset_0002.c:2745:16: warning: this statement may
> fall through [-Wimplicit-fallthrough=]
>     chip->state = FL_SYNCING;
>     ~~~~~~~~~~~~^~~~~~~~~~~~
> drivers/mtd/chips/cfi_cmdset_0002.c:2750:3: note: here
>    case FL_SYNCING:
>    ^~~~
> 
> Warning level 3 was used: -Wimplicit-fallthrough=3
> 
> This patch is part of the ongoing efforts to enabling
> -Wimplicit-fallthrough.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
> ---
>  drivers/mtd/chips/cfi_cmdset_0002.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c
> b/drivers/mtd/chips/cfi_cmdset_0002.c
> index 72428b6bfc47..0b0a1874d3bf 100644
> --- a/drivers/mtd/chips/cfi_cmdset_0002.c
> +++ b/drivers/mtd/chips/cfi_cmdset_0002.c
> @@ -869,6 +869,7 @@ static int get_chip(struct map_info *map, struct flchip
> *chip, unsigned long adr
>  		/* Only if there's no operation suspended... */
>  		if (mode == FL_READY && chip->oldstate == FL_READY)
>  			return 0;
> +		/* fall through */
> 
>  	default:
>  	sleep:
> @@ -2747,6 +2748,7 @@ static void cfi_amdstd_sync (struct mtd_info *mtd)
>  			 * as the whole point is that nobody can do anything
>  			 * with the chip now anyway.
>  			 */
> +			/* fall through */
>  		case FL_SYNCING:
>  			mutex_unlock(&chip->mutex);
>  			break;
> --
> 2.20.1
> 
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
Gustavo A. R. Silva Feb. 12, 2019, 3:35 p.m. | #2
On 2/9/19 2:29 AM, Tokunori Ikegami wrote:
> Reviewed-by: Tokunori Ikegami <ikegami.t@gmail.com>
> 

Thanks, Tokunori.

--
Gustavo

>> -----Original Message-----
>> From: linux-mtd [mailto:linux-mtd-bounces@lists.infradead.org] On Behalf
>> Of Gustavo A. R. Silva
>> Sent: Saturday, February 9, 2019 3:06 AM
>> To: David Woodhouse; Brian Norris; Boris Brezillon; Marek Vasut; Richard
>> Weinberger
>> Cc: linux-mtd@lists.infradead.org; linux-kernel@vger.kernel.org; Gustavo
>> A. R. Silva
>> Subject: [PATCH] mtd: cfi_cmdset_0002: Mark expected switch fall-throughs
>>
>> In preparation to enabling -Wimplicit-fallthrough, mark switch
>> cases where we are expecting to fall through.
>>
>> This patch fixes the following warnings:
>>
>> drivers/mtd/chips/cfi_cmdset_0002.c: In function ‘get_chip’:
>> drivers/mtd/chips/cfi_cmdset_0002.c:870:6: warning: this statement may
>> fall through [-Wimplicit-fallthrough=]
>>    if (mode == FL_READY && chip->oldstate == FL_READY)
>>       ^
>> drivers/mtd/chips/cfi_cmdset_0002.c:873:2: note: here
>>   default:
>>   ^~~~~~~
>> drivers/mtd/chips/cfi_cmdset_0002.c: In function ‘cfi_amdstd_sync’:
>> drivers/mtd/chips/cfi_cmdset_0002.c:2745:16: warning: this statement may
>> fall through [-Wimplicit-fallthrough=]
>>     chip->state = FL_SYNCING;
>>     ~~~~~~~~~~~~^~~~~~~~~~~~
>> drivers/mtd/chips/cfi_cmdset_0002.c:2750:3: note: here
>>    case FL_SYNCING:
>>    ^~~~
>>
>> Warning level 3 was used: -Wimplicit-fallthrough=3
>>
>> This patch is part of the ongoing efforts to enabling
>> -Wimplicit-fallthrough.
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
>> ---
>>  drivers/mtd/chips/cfi_cmdset_0002.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c
>> b/drivers/mtd/chips/cfi_cmdset_0002.c
>> index 72428b6bfc47..0b0a1874d3bf 100644
>> --- a/drivers/mtd/chips/cfi_cmdset_0002.c
>> +++ b/drivers/mtd/chips/cfi_cmdset_0002.c
>> @@ -869,6 +869,7 @@ static int get_chip(struct map_info *map, struct flchip
>> *chip, unsigned long adr
>>  		/* Only if there's no operation suspended... */
>>  		if (mode == FL_READY && chip->oldstate == FL_READY)
>>  			return 0;
>> +		/* fall through */
>>
>>  	default:
>>  	sleep:
>> @@ -2747,6 +2748,7 @@ static void cfi_amdstd_sync (struct mtd_info *mtd)
>>  			 * as the whole point is that nobody can do anything
>>  			 * with the chip now anyway.
>>  			 */
>> +			/* fall through */
>>  		case FL_SYNCING:
>>  			mutex_unlock(&chip->mutex);
>>  			break;
>> --
>> 2.20.1
>>
>>
>> ______________________________________________________
>> Linux MTD discussion mailing list
>> http://lists.infradead.org/mailman/listinfo/linux-mtd/
>

Patch

diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 72428b6bfc47..0b0a1874d3bf 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -869,6 +869,7 @@  static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
 		/* Only if there's no operation suspended... */
 		if (mode == FL_READY && chip->oldstate == FL_READY)
 			return 0;
+		/* fall through */
 
 	default:
 	sleep:
@@ -2747,6 +2748,7 @@  static void cfi_amdstd_sync (struct mtd_info *mtd)
 			 * as the whole point is that nobody can do anything
 			 * with the chip now anyway.
 			 */
+			/* fall through */
 		case FL_SYNCING:
 			mutex_unlock(&chip->mutex);
 			break;