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* [PATCH] iio: mma8452: mark expected switch fall-through
@ 2019-02-11 22:23 Gustavo A. R. Silva
  0 siblings, 0 replies; 3+ messages in thread
From: Gustavo A. R. Silva @ 2019-02-11 22:23 UTC (permalink / raw)
  To: Jonathan Cameron, Hartmut Knaack, Lars-Peter Clausen,
	Peter Meerwald-Stadler
  Cc: linux-iio, linux-kernel, Gustavo A. R. Silva, Kees Cook

In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.

This patch fixes the following warning:

drivers/iio/accel/mma8452.c: In function ‘mma8452_probe’:
drivers/iio/accel/mma8452.c:1581:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (ret == data->chip_info->chip_id)
      ^
drivers/iio/accel/mma8452.c:1584:2: note: here
  default:
  ^~~~~~~

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

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

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

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/iio/accel/mma8452.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 302781126bc6..00e100fc845a 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1580,7 +1580,7 @@ static int mma8452_probe(struct i2c_client *client,
 	case FXLS8471_DEVICE_ID:
 		if (ret == data->chip_info->chip_id)
 			break;
-		/* else: fall through */
+		/* fall through */
 	default:
 		ret = -ENODEV;
 		goto disable_regulators;
-- 
2.20.1


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] iio: mma8452: Mark expected switch fall-through
  2018-07-03 19:44 [PATCH] iio: mma8452: Mark " Gustavo A. R. Silva
@ 2018-07-07 17:04 ` Jonathan Cameron
  0 siblings, 0 replies; 3+ messages in thread
From: Jonathan Cameron @ 2018-07-07 17:04 UTC (permalink / raw)
  To: Gustavo A. R. Silva
  Cc: Hartmut Knaack, Lars-Peter Clausen, Peter Meerwald-Stadler,
	linux-iio, linux-kernel

On Tue, 3 Jul 2018 14:44:36 -0500
"Gustavo A. R. Silva" <gustavo@embeddedor.com> wrote:

> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
> 
> Warning level 2 was used in this case: -Wimplicit-fallthrough=2
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to ignore.

Thanks,

Jonathan

> ---
>  drivers/iio/accel/mma8452.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
> index c149c9c..421a0a8 100644
> --- a/drivers/iio/accel/mma8452.c
> +++ b/drivers/iio/accel/mma8452.c
> @@ -1547,6 +1547,7 @@ static int mma8452_probe(struct i2c_client *client,
>  	case FXLS8471_DEVICE_ID:
>  		if (ret == data->chip_info->chip_id)
>  			break;
> +		/* else: fall through */
>  	default:
>  		return -ENODEV;
>  	}


^ permalink raw reply	[flat|nested] 3+ messages in thread

* [PATCH] iio: mma8452: Mark expected switch fall-through
@ 2018-07-03 19:44 " Gustavo A. R. Silva
  2018-07-07 17:04 ` Jonathan Cameron
  0 siblings, 1 reply; 3+ messages in thread
From: Gustavo A. R. Silva @ 2018-07-03 19:44 UTC (permalink / raw)
  To: Jonathan Cameron, Hartmut Knaack, Lars-Peter Clausen,
	Peter Meerwald-Stadler
  Cc: linux-iio, linux-kernel, Gustavo A. R. Silva

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Warning level 2 was used in this case: -Wimplicit-fallthrough=2

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/iio/accel/mma8452.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index c149c9c..421a0a8 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -1547,6 +1547,7 @@ static int mma8452_probe(struct i2c_client *client,
 	case FXLS8471_DEVICE_ID:
 		if (ret == data->chip_info->chip_id)
 			break;
+		/* else: fall through */
 	default:
 		return -ENODEV;
 	}
-- 
2.7.4


^ permalink raw reply	[flat|nested] 3+ messages in thread

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2019-02-11 22:23 [PATCH] iio: mma8452: mark expected switch fall-through Gustavo A. R. Silva
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2018-07-03 19:44 [PATCH] iio: mma8452: Mark " Gustavo A. R. Silva
2018-07-07 17:04 ` Jonathan Cameron

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