linux-kernel - Re: [PATCH] staging: rtl8723bs: include: use inline functions for dvobj_to

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Date:   Sun, 19 Mar 2023 16:34:50 +0200
From:   Menna Mahmoud <eng.mennamahmoud.mm@...il.com>
To:     Julia Lawall <julia.lawall@...ia.fr>
Cc:     gregkh@...uxfoundation.org, outreachy@...ts.linux.dev,
        namcaov@...il.com, straube.linux@...il.com, hdegoede@...hat.com,
        linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH] staging: rtl8723bs: include: use inline functions for
 dvobj_to_dev


On ١٩‏/٣‏/٢٠٢٣ ١٦:١٣, Julia Lawall wrote:
> How have you chosen the names at the beginning of the subject line?  The
> other patches on this file don't have the word "include:" in the subject.
> Please see the section "Following the Driver commit style" of the tutorial
> to see what to do.
Okay, I will check it.
>
> On Sun, 19 Mar 2023, Menna Mahmoud wrote:
>
>> Convert `dvobj_to_dev` macro into static inline function,
> "into a static inline function"

I will fix it.

>
> But the message is a bit too verbose.  Please see my suggestion on another
> similar patch that was recently proposed.
>
> julia


I will to rework on it, thanks Julia appreciate your help.


Menna

>> because it is not great to have macro that use `container_of` macro,
>> because from looking at the definition one cannot tell what type it applies to.
>>
>> One can get the same benefit from an efficiency point of view by making an
>> inline function (concretely, typically a static inline function, because
>> the definition only needs to be visible in the current file, or in the
>> case of a header file in the file that includes the header file).
>>
>> Suggested-by: Julia Lawall <julia.lawall@...ia.fr>
>> Signed-off-by: Menna Mahmoud <eng.mennamahmoud.mm@...il.com>
>> ---
>>   drivers/staging/rtl8723bs/include/drv_types.h | 6 +++++-
>>   1 file changed, 5 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/staging/rtl8723bs/include/drv_types.h b/drivers/staging/rtl8723bs/include/drv_types.h
>> index 82159e1c7f9b..ea6bb44c5e1d 100644
>> --- a/drivers/staging/rtl8723bs/include/drv_types.h
>> +++ b/drivers/staging/rtl8723bs/include/drv_types.h
>> @@ -305,7 +305,11 @@ struct sdio_data intf_data;
>>   };
>>
>>   #define dvobj_to_pwrctl(dvobj) (&(dvobj->pwrctl_priv))
>> -#define pwrctl_to_dvobj(pwrctl) container_of(pwrctl, struct dvobj_priv, pwrctl_priv)
>> +
>> +static inline struct dvobj_priv *pwrctl_to_dvobj(struct pwrctrl_priv *pwrctl_priv)
>> +{
>> +	return container_of(pwrctl_priv, struct dvobj_priv, pwrctl_priv);
>> +}
>>
>>   static inline struct device *dvobj_to_dev(struct dvobj_priv *dvobj)
>>   {
>> --
>> 2.34.1
>>
>>