Hi Ricardo
On Tue, Feb 13, 2024 at 11:49:24AM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the mips_cdmm_bustype variable to be a constant structure as well,
> placing it into read-only memory which can not be modified at runtime.
Thanks for the patch.
Tested-by: Serge Semin <fancer.lancer@xxxxxxxxx>
Acked-by: Serge Semin <fancer.lancer@xxxxxxxxx>
-Serge(y)
>
> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Suggested-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>
> ---
> arch/mips/include/asm/cdmm.h | 2 +-
> drivers/bus/mips_cdmm.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/mips/include/asm/cdmm.h b/arch/mips/include/asm/cdmm.h
> index c06dbf8ba937..81fa99084178 100644
> --- a/arch/mips/include/asm/cdmm.h
> +++ b/arch/mips/include/asm/cdmm.h
> @@ -63,7 +63,7 @@ struct mips_cdmm_driver {
> */
> phys_addr_t mips_cdmm_phys_base(void);
>
> -extern struct bus_type mips_cdmm_bustype;
> +extern const struct bus_type mips_cdmm_bustype;
> void __iomem *mips_cdmm_early_probe(unsigned int dev_type);
>
> #define to_mips_cdmm_device(d) container_of(d, struct mips_cdmm_device, dev)
> diff --git a/drivers/bus/mips_cdmm.c b/drivers/bus/mips_cdmm.c
> index 554e1992edd4..8baf14bd5eff 100644
> --- a/drivers/bus/mips_cdmm.c
> +++ b/drivers/bus/mips_cdmm.c
> @@ -118,7 +118,7 @@ static struct attribute *mips_cdmm_dev_attrs[] = {
> };
> ATTRIBUTE_GROUPS(mips_cdmm_dev);
>
> -struct bus_type mips_cdmm_bustype = {
> +const struct bus_type mips_cdmm_bustype = {
> .name = "cdmm",
> .dev_groups = mips_cdmm_dev_groups,
> .match = mips_cdmm_match,
>
> ---
> base-commit: 841c35169323cd833294798e58b9bf63fa4fa1de
> change-id: 20240213-bus_cleanup-mips2-434cc6d8f7bd
>
> Best regards,
> --
> Ricardo B. Marliere <ricardo@xxxxxxxxxxxx>
>
