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

[John Paul Adrian Glaubitz]

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.

Thanks,
Adrian

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