On Thu, 11 Jul 2024, Herve Codina wrote:
> Hi Markus,
>
> On Thu, 11 Jul 2024 18:09:26 +0200
> Markus Elfring <Markus.Elfring@xxxxxx> wrote:
>
> > …
> > > +++ b/drivers/mfd/syscon.c
> > …
> > > +static struct syscon *syscon_from_regmap(struct regmap *regmap)
> > +{
> > > + struct syscon *entry, *syscon = NULL;
> > > +
> > > + spin_lock(&syscon_list_slock);
> > > +
> > > + list_for_each_entry(entry, &syscon_list, list)
> > …
> > > + spin_unlock(&syscon_list_slock);
> > > +
> > > + return syscon;
> > > +}
> > …
> >
> > Under which circumstances would you become interested to apply a statement
> > like “guard(spinlock)(&syscon_list_slock);”?
> > https://elixir.bootlin.com/linux/v6.10-rc7/source/include/linux/spinlock.h#L561
> >
>
> I used the spin_{lock,unlock}() pattern call already present in syscon.c.
> Of course, I can add a new patch in this series converting syscon.c to
> the guard() family and use guard() in my introduced lock/unlock.
>
> Lee, any opinion ?
I'm intentionally leaving this one for Arnd.
--
Lee Jones [李琼斯]
