Re: Re: [net-next v7 5/8] net: wwan: add NMEA port support
From: Loic Poulain
Date: Wed Jan 21 2026 - 09:45:29 EST
On Wed, Jan 21, 2026 at 3:09 AM Slark Xiao <slark_xiao@xxxxxxx> wrote:
>
>
>
> At 2026-01-20 20:30:37, "Simon Horman" <horms@xxxxxxxxxx> wrote:
> >On Thu, Jan 15, 2026 at 07:46:22PM +0800, Slark Xiao wrote:
> >
> >...
> >
> >> diff --git a/drivers/net/wwan/wwan_core.c b/drivers/net/wwan/wwan_core.c
> >
> >...
> >
> >> +#else
> >> +static inline int wwan_port_register_gnss(struct wwan_port *port)
> >> +{
> >> + return -EOPNOTSUPP;
> >> +}
> >> +
> >> +static inline void wwan_port_unregister_gnss(struct wwan_port *port)
> >> +{
> >> + WARN_ON(1); /* This handler cannot be called */
> >> +}
> >
> >Please don't use the inline keyword in .c files unless there is a
> >demonstrable - usually performance - reason to do so. Rather, let the
> >compiler inline code as it sees fit.
> >
> >Using the inline keyword in .h is of course fine.
> >
> I think this shall be a mistake.
> For a GNSS device, these 2 API shall not be called frequently.
> So there is no necessary to add "inline" to improve performance.
Indeed, it's fine to remove that explicit inlines here.
Regards,
Loic