diff mbox series

[v2,1/3] iio: temperature: ltc2983: Don't hard code defined constants in messages

Message ID 20220207104830.83882-1-andriy.shevchenko@linux.intel.com (mailing list archive)
State Superseded
Headers show
Series [v2,1/3] iio: temperature: ltc2983: Don't hard code defined constants in messages | expand

Commit Message

Andy Shevchenko Feb. 7, 2022, 10:48 a.m. UTC
In a couple of messages the constants, which have their definitions,
are hard coded into the message text. Unhardcode them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
---
v2: added Rb tag (Nuno)
 drivers/iio/temperature/ltc2983.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Joe Perches Feb. 7, 2022, 4:37 p.m. UTC | #1
On Mon, 2022-02-07 at 12:48 +0200, Andy Shevchenko wrote:
> In a couple of messages the constants, which have their definitions,
> are hard coded into the message text. Unhardcode them.

Found by inspection or tool?

> diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c
[]
> @@ -409,8 +409,8 @@ static struct ltc2983_custom_sensor *__ltc2983_custom_sensor_new(
>  	new_custom->size = n_entries * n_size;
>  	/* check Steinhart size */
>  	if (is_steinhart && new_custom->size != LTC2983_CUSTOM_STEINHART_SIZE) {
> -		dev_err(dev, "Steinhart sensors size(%zu) must be 24",
> -							new_custom->size);
> +		dev_err(dev, "Steinhart sensors size(%zu) must be %d", new_custom->size,
> +			LTC2983_CUSTOM_STEINHART_SIZE);

probably better using "%u" and not "%d"

and better with a \n termination too.

>  		return ERR_PTR(-EINVAL);
>  	}
>  	/* Check space on the table. */
> @@ -1299,8 +1299,8 @@ static int ltc2983_parse_dt(struct ltc2983_data *st)
>  		if (sensor.chan < LTC2983_MIN_CHANNELS_NR ||
>  		    sensor.chan > LTC2983_MAX_CHANNELS_NR) {
>  			ret = -EINVAL;
> -			dev_err(dev,
> -				"chan:%d must be from 1 to 20\n", sensor.chan);
> +			dev_err(dev, "chan:%d must be from %d to %d\n", sensor.chan,
> +				LTC2983_MIN_CHANNELS_NR, LTC2983_MAX_CHANNELS_NR);
>  			goto put_child;
>  		} else if (channel_avail_mask & BIT(sensor.chan)) {
>  			ret = -EINVAL;
Andy Shevchenko Feb. 7, 2022, 5:21 p.m. UTC | #2
On Mon, Feb 07, 2022 at 08:37:55AM -0800, Joe Perches wrote:
> On Mon, 2022-02-07 at 12:48 +0200, Andy Shevchenko wrote:
> > In a couple of messages the constants, which have their definitions,
> > are hard coded into the message text. Unhardcode them.
> 
> Found by inspection or tool?

Does it matter? No, a side effect of the following patch.

...

> > +		dev_err(dev, "Steinhart sensors size(%zu) must be %d", new_custom->size,
> > +			LTC2983_CUSTOM_STEINHART_SIZE);
> 
> probably better using "%u" and not "%d"
> 
> and better with a \n termination too.

I think it would be a separate change if we wish so. Let Jonathan to tell what
to do here.
Joe Perches Feb. 7, 2022, 5:29 p.m. UTC | #3
On Mon, 2022-02-07 at 19:21 +0200, Andy Shevchenko wrote:
> On Mon, Feb 07, 2022 at 08:37:55AM -0800, Joe Perches wrote:
> > On Mon, 2022-02-07 at 12:48 +0200, Andy Shevchenko wrote:
> > > In a couple of messages the constants, which have their definitions,
> > > are hard coded into the message text. Unhardcode them.
> > 
> > Found by inspection or tool?
> 
> Does it matter?

Yes.  If it was done using a tool, then it could used treewide.

> No, a side effect of the following patch.

k
Jonathan Cameron Feb. 7, 2022, 8:44 p.m. UTC | #4
On Mon, 7 Feb 2022 19:21:25 +0200
Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:

> On Mon, Feb 07, 2022 at 08:37:55AM -0800, Joe Perches wrote:
> > On Mon, 2022-02-07 at 12:48 +0200, Andy Shevchenko wrote:  
> > > In a couple of messages the constants, which have their definitions,
> > > are hard coded into the message text. Unhardcode them.  
> > 
> > Found by inspection or tool?  
> 
> Does it matter? No, a side effect of the following patch.
> 
> ...
> 
> > > +		dev_err(dev, "Steinhart sensors size(%zu) must be %d", new_custom->size,
> > > +			LTC2983_CUSTOM_STEINHART_SIZE);  
> > 
> > probably better using "%u" and not "%d"
> > 
> > and better with a \n termination too.  
> 
> I think it would be a separate change if we wish so. Let Jonathan to tell what
> to do here.
> 
Either way is fine by me.  I tend to be a little flexible of trivial fixes
in patches that are as simple as this one.

Thanks,

Jonathan
Andy Shevchenko Feb. 10, 2022, 1:54 p.m. UTC | #5
On Mon, Feb 07, 2022 at 08:44:21PM +0000, Jonathan Cameron wrote:
> On Mon, 7 Feb 2022 19:21:25 +0200
> Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote:
> 
> > On Mon, Feb 07, 2022 at 08:37:55AM -0800, Joe Perches wrote:
> > > On Mon, 2022-02-07 at 12:48 +0200, Andy Shevchenko wrote:  
> > > > In a couple of messages the constants, which have their definitions,
> > > > are hard coded into the message text. Unhardcode them.  
> > > 
> > > Found by inspection or tool?  
> > 
> > Does it matter? No, a side effect of the following patch.
> > 
> > ...
> > 
> > > > +		dev_err(dev, "Steinhart sensors size(%zu) must be %d", new_custom->size,
> > > > +			LTC2983_CUSTOM_STEINHART_SIZE);  
> > > 
> > > probably better using "%u" and not "%d"
> > > 
> > > and better with a \n termination too.  
> > 
> > I think it would be a separate change if we wish so. Let Jonathan to tell what
> > to do here.
> > 
> Either way is fine by me.  I tend to be a little flexible of trivial fixes
> in patches that are as simple as this one.

v3 has been just sent.
diff mbox series

Patch

diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c
index 301c3f13fb26..d272c303c1b0 100644
--- a/drivers/iio/temperature/ltc2983.c
+++ b/drivers/iio/temperature/ltc2983.c
@@ -409,8 +409,8 @@  static struct ltc2983_custom_sensor *__ltc2983_custom_sensor_new(
 	new_custom->size = n_entries * n_size;
 	/* check Steinhart size */
 	if (is_steinhart && new_custom->size != LTC2983_CUSTOM_STEINHART_SIZE) {
-		dev_err(dev, "Steinhart sensors size(%zu) must be 24",
-							new_custom->size);
+		dev_err(dev, "Steinhart sensors size(%zu) must be %d", new_custom->size,
+			LTC2983_CUSTOM_STEINHART_SIZE);
 		return ERR_PTR(-EINVAL);
 	}
 	/* Check space on the table. */
@@ -1299,8 +1299,8 @@  static int ltc2983_parse_dt(struct ltc2983_data *st)
 		if (sensor.chan < LTC2983_MIN_CHANNELS_NR ||
 		    sensor.chan > LTC2983_MAX_CHANNELS_NR) {
 			ret = -EINVAL;
-			dev_err(dev,
-				"chan:%d must be from 1 to 20\n", sensor.chan);
+			dev_err(dev, "chan:%d must be from %d to %d\n", sensor.chan,
+				LTC2983_MIN_CHANNELS_NR, LTC2983_MAX_CHANNELS_NR);
 			goto put_child;
 		} else if (channel_avail_mask & BIT(sensor.chan)) {
 			ret = -EINVAL;