linux-kernel - Re: [PATCH v2] staging: most: use inline functions for iface_to

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Message-ID: <0bfcb878-1886-b838-cea7-3256d8024ddd@gmail.com>
Date:   Mon, 20 Mar 2023 23:19:23 +0200
From:   Menna Mahmoud <eng.mennamahmoud.mm@...il.com>
To:     Julia Lawall <julia.lawall@...ia.fr>
Cc:     gregkh@...uxfoundation.org, outreachy@...ts.linux.dev,
        parthiban.veerasooran@...rochip.com, christian.gromm@...rochip.com,
        drv@...lo.com, dave@...olabs.net, yang.lee@...ux.alibaba.com,
        linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH v2] staging: most: use inline functions for iface_to_hdm


On ٢٠‏/٣‏/٢٠٢٣ ٢٣:١٧, Julia Lawall wrote:
> Maybe "define iface_to_hdm as an inline function" would be better.  "use"
> is not very precise.

Okay, I will edit it.


Menna

>
> julia
>
> On Mon, 20 Mar 2023, Menna Mahmoud wrote:
>
>> Convert `iface_to_hdm` macro into a static inline function.
>> 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.
>>
>> Suggested-by: Julia Lawall <julia.lawall@...ia.fr>
>> Signed-off-by: Menna Mahmoud <eng.mennamahmoud.mm@...il.com>
>> ---
>> change in v2:
>> 	edit subject line.
>> ---
>>   drivers/staging/most/dim2/dim2.c | 5 ++++-
>>   1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/staging/most/dim2/dim2.c b/drivers/staging/most/dim2/dim2.c
>> index b8bd01ca1f11..21d1c9f24c3d 100644
>> --- a/drivers/staging/most/dim2/dim2.c
>> +++ b/drivers/staging/most/dim2/dim2.c
>> @@ -108,7 +108,10 @@ struct dim2_platform_data {
>>   	u8 fcnt;
>>   };
>>
>> -#define iface_to_hdm(iface) container_of(iface, struct dim2_hdm, most_iface)
>> +static inline struct dim2_hdm *iface_to_hdm(struct most_interface *iface)
>> +{
>> +	return container_of(iface, struct dim2_hdm, most_iface);
>> +}
>>
>>   /* Macro to identify a network status message */
>>   #define PACKET_IS_NET_INFO(p)  \
>> --
>> 2.34.1
>>
>>