Re: [PATCH 5/9] staging: vc04_services: Do not pass NULL to vchiq_log_error()

Laurent Pinchart
2023-11-07T12:37:18Z

Hi Umang,

Thank you for the patch.

On Tue, Nov 07, 2023 at 04:51:52AM -0500, Umang Jain wrote:
> vchiq_add_connected_callback() logs using vchiq_log_error() macro,
> but passes NULL instead of a struct device pointer. Fix it.
>
> vchiq_add_connected_callback() is not used anywhere in the vc04_services
> as of now. It will be used when we add new drivers(VC shared memory and
> bcm2835-isp), hence it kept as it is for now.
>
> Fixes: 1d8915cf8899 ("staging: vc04: Convert vchiq_log_error() to use dynamic debug")
> Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
> ---
> .../vc04_services/interface/vchiq_arm/vchiq_connected.c | 4 ++--
> .../vc04_services/interface/vchiq_arm/vchiq_connected.h | 4 +++-
> 2 files changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
> index b3928bd8c9c6..21f9fa1a1713 100644
> --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
> +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
> @@ -27,7 +27,7 @@ static void connected_init(void)
> * be made immediately, otherwise it will be deferred until
> * vchiq_call_connected_callbacks is called.
> */
> -void vchiq_add_connected_callback(void (*callback)(void))
> +void vchiq_add_connected_callback(struct vchiq_device *device, void (*callback)(void))

You're changing the prototype of the function, but the patch doesn't
update any user. If the function is unused, it looks like you can drop
it instead. Looking at the rest of the vchiq_connected.c file, I think
you can actually drop the whole file.

> {
> connected_init();
>
> @@ -39,7 +39,7 @@ void vchiq_add_connected_callback(void (*callback)(void))
> callback();
> } else {
> if (g_num_deferred_callbacks >= MAX_CALLBACKS) {
> - vchiq_log_error(NULL, VCHIQ_CORE,
> + vchiq_log_error(&device->dev, VCHIQ_CORE,
> "There already %d callback registered - please increase MAX_CALLBACKS",
> g_num_deferred_callbacks);
> } else {
> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.h
> index 4caf5e30099d..e4ed56446f8a 100644
> --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.h
> +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.h
> @@ -1,10 +1,12 @@
> /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
> /* Copyright (c) 2010-2012 Broadcom. All rights reserved. */
>
> +#include "vchiq_bus.h"
> +
> #ifndef VCHIQ_CONNECTED_H
> #define VCHIQ_CONNECTED_H
>
> -void vchiq_add_connected_callback(void (*callback)(void));
> +void vchiq_add_connected_callback(struct vchiq_device *device, void (*callback)(void));
> void vchiq_call_connected_callbacks(void);
>
> #endif /* VCHIQ_CONNECTED_H */

--
Regards,

Laurent Pinchart