[PATCH] bus: sunxi-rsb: make sunxi_rsb_bus const

[PATCH] bus: sunxi-rsb: make sunxi_rsb_bus const

[Ricardo B. Marliere]

Now that the driver core can properly handle constant struct bus_type,
move the sunxi_rsb_bus 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@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
 drivers/bus/sunxi-rsb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c
index fd3e9d82340a..1e29ba76615d 100644
--- a/drivers/bus/sunxi-rsb.c
+++ b/drivers/bus/sunxi-rsb.c
@@ -128,7 +128,7 @@ struct sunxi_rsb {
 };
 
 /* bus / slave device related functions */
-static struct bus_type sunxi_rsb_bus;
+static const struct bus_type sunxi_rsb_bus;
 
 static int sunxi_rsb_device_match(struct device *dev, struct device_driver *drv)
 {
@@ -177,7 +177,7 @@ static int sunxi_rsb_device_modalias(const struct device *dev, struct kobj_ueven
 	return of_device_uevent_modalias(dev, env);
 }
 
-static struct bus_type sunxi_rsb_bus = {
+static const struct bus_type sunxi_rsb_bus = {
 	.name		= RSB_CTRL_NAME,
 	.match		= sunxi_rsb_device_match,
 	.probe		= sunxi_rsb_device_probe,

---
base-commit: 38ed19495066966979ba821b9e0f549ad5ea620d
change-id: 20240204-bus_cleanup-bus-de90b25d7ce6

Best regards,
-- 
Ricardo B. Marliere <ricardo@marliere.net>


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Re: [PATCH] bus: sunxi-rsb: make sunxi_rsb_bus const

[Greg Kroah-Hartman]

On Sun, Feb 04, 2024 at 12:56:44PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the sunxi_rsb_bus 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@linuxfoundation.org>
> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Re: [PATCH] bus: sunxi-rsb: make sunxi_rsb_bus const

[Jernej Škrabec]

Dne nedelja, 04. februar 2024 ob 16:56:44 CET je Ricardo B. Marliere napisal(a):
> Now that the driver core can properly handle constant struct bus_type,
> move the sunxi_rsb_bus 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@linuxfoundation.org>
> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej

> ---
>  drivers/bus/sunxi-rsb.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/bus/sunxi-rsb.c b/drivers/bus/sunxi-rsb.c
> index fd3e9d82340a..1e29ba76615d 100644
> --- a/drivers/bus/sunxi-rsb.c
> +++ b/drivers/bus/sunxi-rsb.c
> @@ -128,7 +128,7 @@ struct sunxi_rsb {
>  };
>  
>  /* bus / slave device related functions */
> -static struct bus_type sunxi_rsb_bus;
> +static const struct bus_type sunxi_rsb_bus;
>  
>  static int sunxi_rsb_device_match(struct device *dev, struct device_driver *drv)
>  {
> @@ -177,7 +177,7 @@ static int sunxi_rsb_device_modalias(const struct device *dev, struct kobj_ueven
>  	return of_device_uevent_modalias(dev, env);
>  }
>  
> -static struct bus_type sunxi_rsb_bus = {
> +static const struct bus_type sunxi_rsb_bus = {
>  	.name		= RSB_CTRL_NAME,
>  	.match		= sunxi_rsb_device_match,
>  	.probe		= sunxi_rsb_device_probe,
> 
> ---
> base-commit: 38ed19495066966979ba821b9e0f549ad5ea620d
> change-id: 20240204-bus_cleanup-bus-de90b25d7ce6
> 
> Best regards,
> 





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Re: [PATCH] bus: sunxi-rsb: make sunxi_rsb_bus const

[Jernej Škrabec]

Dne nedelja, 04. februar 2024 ob 16:56:44 CET je Ricardo B. Marliere napisal(a):
> Now that the driver core can properly handle constant struct bus_type,
> move the sunxi_rsb_bus 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@linuxfoundation.org>
> Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>

Applied, thanks!

Best regards,
Jernej



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