Re: [PATCH] soc: renesas: rz-sysc: Suppress binding attributes

[Geert Uytterhoeven]

Hi Claudiu,

On Thu, 20 Feb 2025 at 17:00, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> On Sat, 15 Feb 2025 at 14:18, Claudiu <claudiu.beznea@xxxxxxxxx> wrote:
> > From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
> >
> > The matching data for the rz-sysc driver is marked with __initconst, which
> > means it is discarded after initialization. Because of this, attempting to
> > unbind/bind the driver through sysfs after system boot can lead to "Unable
> > to handle kernel paging request at virtual address" errors due to accessing
> > freed memory.
> >
> > Since the System Controller (SYSC) is an essential block for Renesas SoCs,
> > suppress binding attributes to prevent them being exposed in sysfs,
> > avoiding potential issues.
> >
> > Fixes: 1660e5ea6a3e ("soc: renesas: Add SYSC driver for Renesas RZ family")
> > Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> i.e. will queue in renesas-devel for v6.15.

As the offending commit is only in renesas-devel, I'll fold the fix into
the original commit.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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