Re: [PATCH v2] staging: most: use inline functions for iface_to_hdm

From: Julia Lawall
Date: Mon Mar 20 2023 - 17:17:55 EST


Maybe "define iface_to_hdm as an inline function" would be better. "use"
is not very precise.

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@xxxxxxxx>
> Signed-off-by: Menna Mahmoud <eng.mennamahmoud.mm@xxxxxxxxx>
> ---
> 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
>
>