Re: [PATCH] dma: dma-sysfs: make dma_subsys const

From: Ricardo B. Marliere
Date: Mon Feb 05 2024 - 07:15:41 EST


On 5 Feb 06:17, John Paul Adrian Glaubitz wrote:
> Hi Ricardo,
>
> On Sun, 2024-02-04 at 12:15 -0300, Ricardo B. Marliere wrote:
> > Now that the driver core can properly handle constant struct bus_type,
> > move the dma_subsys variable to be a constant structure as well,
> > placing it into read-only memory which can not be modified at runtime.
> >
> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>
> > ---
> > arch/sh/drivers/dma/dma-sysfs.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/sh/drivers/dma/dma-sysfs.c b/arch/sh/drivers/dma/dma-sysfs.c
> > index 431bc18f0a41..9f666280d80c 100644
> > --- a/arch/sh/drivers/dma/dma-sysfs.c
> > +++ b/arch/sh/drivers/dma/dma-sysfs.c
> > @@ -15,7 +15,7 @@
> > #include <linux/string.h>
> > #include <asm/dma.h>
> >
> > -static struct bus_type dma_subsys = {
> > +static const struct bus_type dma_subsys = {
> > .name = "dma",
> > .dev_name = "dma",
> > };
> >
> > ---
> > base-commit: 6613476e225e090cc9aad49be7fa504e290dd33d
> > change-id: 20240204-bus_cleanup-sh-6d3c136da6bb
> >
> > Best regards,
>
> Reviewed-by: John Paul Adrian Glaubitz <glaubitz@xxxxxxxxxxxxxxxxxxx>
>
> Thanks for your patch. I will merge it into my linux-sh this weekend
> after returning from FOSDEM, either this evening or tomorrow.

Hi John,

thanks for reviewing. I was wondering if your tree should be listed
under SUPERH in the MAINTAINERS file? I didn't find it there and had to
do some searching.

All the best,
- Ricardo.


>
> Thanks,
> Adrian
>
> --
> .''`. John Paul Adrian Glaubitz
> : :' : Debian Developer
> `. `' Physicist
> `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913