Hi Laurent,
On 11/7/23 6:06 PM, Laurent Pinchart wrote:
On Tue, Nov 07, 2023 at 02:25:52PM +0200, Laurent Pinchart wrote:
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@xxxxxxxxxxxxxxxx>
---
.../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.
Except that the vc-sm-cma driver will use it. I'm curious though, that
driver will have no way to acquire a pointer to a vchiq_device, so I
don't see how this will be usable. pr_err() may be a better pick here.
vc-sm-cma probe function is called through vchiq_device, hence access to
dev pointer is established.
https://git.uk.ideasonboard.com/uajain/linux/src/branch/uajain/rpi3/staging-next/isp/drivers/staging/vc04_services/vc-sm-cma/vc_sm.c#L676
{
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 */
