Re: [PATCH v11 3/4] phy: Add Sparx5 ethernet serdes PHY driver
From: Leon Romanovsky
Date: Mon Jan 04 2021 - 09:22:10 EST
On Mon, Jan 04, 2021 at 02:16:38PM +0100, Steen Hegelund wrote:
> Hi Leon,
>
>
> On Mon, 2021-01-04 at 14:15 +0200, Leon Romanovsky wrote:
> >
> > <...>
> >
> > > +struct sparx5_sd10g28_args {
> > > + bool skip_cmu_cfg; /* Enable/disable CMU cfg
> > > */
> > > + bool no_pwrcycle; /* Omit initial power-
> > > cycle */
> > > + bool txinvert; /* Enable inversion of
> > > output data */
> > > + bool rxinvert; /* Enable inversion of
> > > input data */
> > > + bool txmargin; /* Set output level to
> > > half/full */
> > > + u16 txswing; /* Set output level */
> > > + bool mute; /* Mute Output Buffer */
> > > + bool is_6g;
> > > + bool reg_rst;
> > > +};
> >
> > All those bools in structs can be squeezed into one u8, just use
> > bitfields, e.g. "u8 a:1;".
>
> Got you.
>
> >
> > Also I strongly advise do not do vertical alignment, it will cause to
> > too many churn later when this code will be updated.
>
> So just a single space between the type and the name and the comment is
> preferable?
Yes, use clang formatter over your code, it will change everything to be
aligned to kernel coding style.
https://linuxplumbersconf.org/event/7/contributions/803/
>
> >
> > > +
> >
> > <...>
> >
> > > +static inline void __iomem *sdx5_addr(void __iomem *base[],
> > > + int id, int tinst, int tcnt,
> > > + int gbase, int ginst,
> > > + int gcnt, int gwidth,
> > > + int raddr, int rinst,
> > > + int rcnt, int rwidth)
> > > +{
> > > +#if defined(CONFIG_DEBUG_KERNEL)
> > > + WARN_ON((tinst) >= tcnt);
> > > + WARN_ON((ginst) >= gcnt);
> > > + WARN_ON((rinst) >= rcnt);
> > > +#endif
> >
> > Please don't put "#if defined(CONFIG_DEBUG_KERNEL)", print WARN_ON().
>
> OK, I will drop the #if and keep the WARN_ON...
Thanks