Now that the driver core can properly handle constant struct bus_type,
move the cec_bus_type 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/media/cec/core/cec-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/cec/core/cec-core.c b/drivers/media/cec/core/cec-core.c
index 7e153c5cad04..5a54db839e5d 100644
--- a/drivers/media/cec/core/cec-core.c
+++ b/drivers/media/cec/core/cec-core.c
@@ -93,7 +93,7 @@ static void cec_devnode_release(struct device *cd)
 	cec_delete_adapter(to_cec_adapter(devnode));
 }
 
-static struct bus_type cec_bus_type = {
+static const struct bus_type cec_bus_type = {
 	.name = CEC_NAME,
 };
 

-- 
2.43.0

Hi Ricardo,

Thank you for the patch.

On Sat, Feb 03, 2024 at 12:31:26PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the cec_bus_type 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: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Hans, I assume you'll pick this patch. Could you also pick 2/2 from the
series ?

> ---
>  drivers/media/cec/core/cec-core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/media/cec/core/cec-core.c b/drivers/media/cec/core/cec-core.c
> index 7e153c5cad04..5a54db839e5d 100644
> --- a/drivers/media/cec/core/cec-core.c
> +++ b/drivers/media/cec/core/cec-core.c
> @@ -93,7 +93,7 @@ static void cec_devnode_release(struct device *cd)
>  	cec_delete_adapter(to_cec_adapter(devnode));
>  }
>  
> -static struct bus_type cec_bus_type = {
> +static const struct bus_type cec_bus_type = {
>  	.name = CEC_NAME,
>  };
>  

-- 
Regards,

Laurent Pinchart

On 04/02/2024 09:47, Laurent Pinchart wrote:
> Hi Ricardo,
> 
> Thank you for the patch.
> 
> On Sat, Feb 03, 2024 at 12:31:26PM -0300, Ricardo B. Marliere wrote:
>> Now that the driver core can properly handle constant struct bus_type,
>> move the cec_bus_type 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: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> 
> Hans, I assume you'll pick this patch. Could you also pick 2/2 from the
> series ?

Of course!

	Hans

> 
>> ---
>>  drivers/media/cec/core/cec-core.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/media/cec/core/cec-core.c b/drivers/media/cec/core/cec-core.c
>> index 7e153c5cad04..5a54db839e5d 100644
>> --- a/drivers/media/cec/core/cec-core.c
>> +++ b/drivers/media/cec/core/cec-core.c
>> @@ -93,7 +93,7 @@ static void cec_devnode_release(struct device *cd)
>>  	cec_delete_adapter(to_cec_adapter(devnode));
>>  }
>>  
>> -static struct bus_type cec_bus_type = {
>> +static const struct bus_type cec_bus_type = {
>>  	.name = CEC_NAME,
>>  };
>>  
>

On Sat, Feb 03, 2024 at 12:31:26PM -0300, Ricardo B. Marliere wrote:
> Now that the driver core can properly handle constant struct bus_type,
> move the cec_bus_type 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/media/cec/core/cec-core.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

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