linux-kernel - Re: [PATCH v1 3/5] driver core: Create __fwnode_link

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 14 Sep 2021 00:46:44 -0700
From:   Saravana Kannan <saravanak@...gle.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        John Stultz <john.stultz@...aro.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Rob Herring <robh+dt@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Vladimir Oltean <olteanv@...il.com>,
        Android Kernel Team <kernel-team@...roid.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 3/5] driver core: Create __fwnode_link_del() helper function

On Tue, Sep 14, 2021 at 12:05 AM Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
>
> Hi Saravana,
>
> On Tue, Sep 14, 2021 at 6:39 AM Saravana Kannan <saravanak@...gle.com> wrote:
> > The same code is repeated in multiple locations. Create a helper
> > function for it.
> >
> > Signed-off-by: Saravana Kannan <saravanak@...gle.com>
>
> Thanks for your patch!
>
> > --- a/drivers/base/core.c
> > +++ b/drivers/base/core.c
> > @@ -101,6 +101,19 @@ int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup)
> >         return ret;
> >  }
> >
> > +/**
> > + * __fwnode_link_del - Delete a link between two fwnode_handles.
> > + * @link: the fwnode_link to be deleted
> > + *
> > + * The fwnode_link_lock needs to be held when this function is called.
> > + */
> > +static void __fwnode_link_del(struct fwnode_link *link)
>
> Why the double underscore?

Because unlike fwnode_link_add(), this one needs the lock to be held.

-Saravana

>
> > +{
> > +       list_del(&link->s_hook);
> > +       list_del(&link->c_hook);
> > +       kfree(link);
> > +}
>
> Apart from that:
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds