diff mbox series

[2/2] iio: st_sensors: Remove some redundant includes in st_sensors.h

Message ID bd7fa0b07c85172ecba384e239cb0ecf0780766a.1686600780.git.christophe.jaillet@wanadoo.fr (mailing list archive)
State Changes Requested
Headers show
Series [1/2] iio: st_sensors: Remove some redundant includes | expand

Commit Message

Christophe JAILLET June 12, 2023, 8:13 p.m. UTC
There is no need to include i2c.h and spi/spi.h in st_sensors.h.
Should it be needed, st_sensors_(i2c|spi).h should be used.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Based on one of my script, this reduces the number of included files from
573 files to 515 files when compiling drivers/iio/accel/st_accel_buffer.c
---
 include/linux/iio/common/st_sensors.h | 2 --
 1 file changed, 2 deletions(-)

Comments

Jonathan Cameron June 17, 2023, 6:49 p.m. UTC | #1
On Mon, 12 Jun 2023 22:13:37 +0200
Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote:

> There is no need to include i2c.h and spi/spi.h in st_sensors.h.
> Should it be needed, st_sensors_(i2c|spi).h should be used.
Agreed these should be dropped from here.

But I don't agree with statement that i2c.h and spi/spi.h should
be gotten implicitly from st_sensors_i2c.h / st_sensors_spi.h
If they are needed the should be included directly in the files
where they are needed.

Jonathan

> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> Based on one of my script, this reduces the number of included files from
> 573 files to 515 files when compiling drivers/iio/accel/st_accel_buffer.c
> ---
>  include/linux/iio/common/st_sensors.h | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
> index 607c3a89a647..a1d3d57d6d6e 100644
> --- a/include/linux/iio/common/st_sensors.h
> +++ b/include/linux/iio/common/st_sensors.h
> @@ -10,8 +10,6 @@
>  #ifndef ST_SENSORS_H
>  #define ST_SENSORS_H
>  
> -#include <linux/i2c.h>
> -#include <linux/spi/spi.h>
>  #include <linux/irqreturn.h>
>  #include <linux/iio/iio.h>
>  #include <linux/iio/trigger.h>
Christophe JAILLET June 19, 2023, 8:02 p.m. UTC | #2
Le 17/06/2023 à 20:49, Jonathan Cameron a écrit :
> On Mon, 12 Jun 2023 22:13:37 +0200
> Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote:
> 
>> There is no need to include i2c.h and spi/spi.h in st_sensors.h.
>> Should it be needed, st_sensors_(i2c|spi).h should be used.
> Agreed these should be dropped from here.
> 
> But I don't agree with statement that i2c.h and spi/spi.h should
> be gotten implicitly from st_sensors_i2c.h / st_sensors_spi.h
> If they are needed the should be included directly in the files
> where they are needed.
> 
> Jonathan

Another option I thought about was to:
    - keep the includes in st_sensors.h

    - move function declaration in st_sensors.h
int st_sensors_spi_configure(struct iio_dev *indio_dev,
			     struct spi_device *spi);
and
int st_sensors_i2c_configure(struct iio_dev *indio_dev,
			     struct i2c_client *client);

    - remove st_sensors_spi.h and st_sensors_i2c.h

At least, it would simplify things a remove 2 mostly useless .h file.

It would not give the benefit of removing some include for files that do 
not require spi.h or i2c.h, but as these includes are already there, it 
wouldn't make things worst :)

What do you think of this approach?

CJ

> 
>>
>> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
>> ---
>> Based on one of my script, this reduces the number of included files from
>> 573 files to 515 files when compiling drivers/iio/accel/st_accel_buffer.c
>> ---
>>   include/linux/iio/common/st_sensors.h | 2 --
>>   1 file changed, 2 deletions(-)
>>
>> diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
>> index 607c3a89a647..a1d3d57d6d6e 100644
>> --- a/include/linux/iio/common/st_sensors.h
>> +++ b/include/linux/iio/common/st_sensors.h
>> @@ -10,8 +10,6 @@
>>   #ifndef ST_SENSORS_H
>>   #define ST_SENSORS_H
>>   
>> -#include <linux/i2c.h>
>> -#include <linux/spi/spi.h>
>>   #include <linux/irqreturn.h>
>>   #include <linux/iio/iio.h>
>>   #include <linux/iio/trigger.h>
> 
>
Jonathan Cameron July 2, 2023, 10:31 a.m. UTC | #3
On Mon, 19 Jun 2023 22:02:37 +0200
Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote:

> Le 17/06/2023 à 20:49, Jonathan Cameron a écrit :
> > On Mon, 12 Jun 2023 22:13:37 +0200
> > Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote:
> >   
> >> There is no need to include i2c.h and spi/spi.h in st_sensors.h.
> >> Should it be needed, st_sensors_(i2c|spi).h should be used.  
> > Agreed these should be dropped from here.
> > 
> > But I don't agree with statement that i2c.h and spi/spi.h should
> > be gotten implicitly from st_sensors_i2c.h / st_sensors_spi.h
> > If they are needed the should be included directly in the files
> > where they are needed.
> > 
> > Jonathan  
> 
> Another option I thought about was to:
>     - keep the includes in st_sensors.h
> 
>     - move function declaration in st_sensors.h
> int st_sensors_spi_configure(struct iio_dev *indio_dev,
> 			     struct spi_device *spi);
> and
> int st_sensors_i2c_configure(struct iio_dev *indio_dev,
> 			     struct i2c_client *client);
> 
>     - remove st_sensors_spi.h and st_sensors_i2c.h
> 
> At least, it would simplify things a remove 2 mostly useless .h file.
> 
> It would not give the benefit of removing some include for files that do 
> not require spi.h or i2c.h, but as these includes are already there, it 
> wouldn't make things worst :)
> 
> What do you think of this approach?

Gut feeling is not worth bothering...  Having separate _i2c.h and _spi.h
seems fine to me.  I'm fine with this patch, just not the description.

Jonathan

> 
> CJ
> 
> >   
> >>
> >> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> >> ---
> >> Based on one of my script, this reduces the number of included files from
> >> 573 files to 515 files when compiling drivers/iio/accel/st_accel_buffer.c
> >> ---
> >>   include/linux/iio/common/st_sensors.h | 2 --
> >>   1 file changed, 2 deletions(-)
> >>
> >> diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
> >> index 607c3a89a647..a1d3d57d6d6e 100644
> >> --- a/include/linux/iio/common/st_sensors.h
> >> +++ b/include/linux/iio/common/st_sensors.h
> >> @@ -10,8 +10,6 @@
> >>   #ifndef ST_SENSORS_H
> >>   #define ST_SENSORS_H
> >>   
> >> -#include <linux/i2c.h>
> >> -#include <linux/spi/spi.h>
> >>   #include <linux/irqreturn.h>
> >>   #include <linux/iio/iio.h>
> >>   #include <linux/iio/trigger.h>  
> > 
> >   
>
diff mbox series

Patch

diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 607c3a89a647..a1d3d57d6d6e 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -10,8 +10,6 @@ 
 #ifndef ST_SENSORS_H
 #define ST_SENSORS_H
 
-#include <linux/i2c.h>
-#include <linux/spi/spi.h>
 #include <linux/irqreturn.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/trigger.h>