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Message-Id: <20221223122404.170585-2-umang.jain@ideasonboard.com>
Date: Fri, 23 Dec 2022 17:53:58 +0530
From: Umang Jain <umang.jain@...asonboard.com>
To: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-staging@...ts.linux.dev,
linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org
Cc: Kees Cook <keescook@...omium.org>,
Stefan Wahren <stefan.wahren@...e.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Florian Fainelli <f.fainelli@...il.com>,
Adrien Thierry <athierry@...hat.com>,
Dan Carpenter <error27@...il.com>,
Dave Stevenson <dave.stevenson@...pberrypi.com>,
Kieran Bingham <kieran.bingham@...asonboard.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Umang Jain <umang.jain@...asonboard.com>
Subject: [PATCH v3 1/7] staging: vc04_services: Replace vchiq_status return type to int
Modify the functions' signature using enum vchiq_status to return int.
Currently, this patch only touches the function signatures and
in subsequent patches each vchiq_status enumerated value will be
replaced by a integer value.
This patch acts as an initial point to address the TODO item:
* Get rid of custom function return values
for vc04_services/interface.
Signed-off-by: Umang Jain <umang.jain@...asonboard.com>
Tested-by: Stefan Wahren <stefan.wahren@...e.com>
---
.../bcm2835-audio/bcm2835-vchiq.c | 8 +--
.../include/linux/raspberrypi/vchiq.h | 59 +++++++++----------
.../interface/vchiq_arm/vchiq_arm.c | 32 +++++-----
.../interface/vchiq_arm/vchiq_arm.h | 12 ++--
.../interface/vchiq_arm/vchiq_core.c | 34 +++++------
.../interface/vchiq_arm/vchiq_core.h | 18 +++---
.../interface/vchiq_arm/vchiq_ioctl.h | 8 +--
.../vc04_services/vchiq-mmal/mmal-vchiq.c | 7 +--
8 files changed, 88 insertions(+), 90 deletions(-)
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
index f4c2c9506d86..0fd92affc264 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
@@ -91,10 +91,10 @@ static int bcm2835_audio_send_simple(struct bcm2835_audio_instance *instance,
return bcm2835_audio_send_msg(instance, &m, wait);
}
-static enum vchiq_status audio_vchi_callback(struct vchiq_instance *vchiq_instance,
- enum vchiq_reason reason,
- struct vchiq_header *header,
- unsigned int handle, void *userdata)
+static int audio_vchi_callback(struct vchiq_instance *vchiq_instance,
+ enum vchiq_reason reason,
+ struct vchiq_header *header,
+ unsigned int handle, void *userdata)
{
struct bcm2835_audio_instance *instance = vchiq_get_service_userdata(vchiq_instance,
handle);
diff --git a/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h b/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h
index db1441c0cc66..71f4cb5d5cfd 100644
--- a/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h
+++ b/drivers/staging/vc04_services/include/linux/raspberrypi/vchiq.h
@@ -57,11 +57,11 @@ struct vchiq_instance;
struct vchiq_service_base {
int fourcc;
- enum vchiq_status (*callback)(struct vchiq_instance *instance,
- enum vchiq_reason reason,
- struct vchiq_header *header,
- unsigned int handle,
- void *bulk_userdata);
+ int (*callback)(struct vchiq_instance *instance,
+ enum vchiq_reason reason,
+ struct vchiq_header *header,
+ unsigned int handle,
+ void *bulk_userdata);
void *userdata;
};
@@ -74,11 +74,11 @@ struct vchiq_completion_data_kernel {
struct vchiq_service_params_kernel {
int fourcc;
- enum vchiq_status (*callback)(struct vchiq_instance *instance,
- enum vchiq_reason reason,
- struct vchiq_header *header,
- unsigned int handle,
- void *bulk_userdata);
+ int (*callback)(struct vchiq_instance *instance,
+ enum vchiq_reason reason,
+ struct vchiq_header *header,
+ unsigned int handle,
+ void *bulk_userdata);
void *userdata;
short version; /* Increment for non-trivial changes */
short version_min; /* Update for incompatible changes */
@@ -86,33 +86,32 @@ struct vchiq_service_params_kernel {
struct vchiq_instance;
-extern enum vchiq_status vchiq_initialise(struct vchiq_instance **pinstance);
-extern enum vchiq_status vchiq_shutdown(struct vchiq_instance *instance);
-extern enum vchiq_status vchiq_connect(struct vchiq_instance *instance);
-extern enum vchiq_status vchiq_open_service(struct vchiq_instance *instance,
- const struct vchiq_service_params_kernel *params,
- unsigned int *pservice);
-extern enum vchiq_status vchiq_close_service(struct vchiq_instance *instance,
- unsigned int service);
-extern enum vchiq_status vchiq_use_service(struct vchiq_instance *instance, unsigned int service);
-extern enum vchiq_status vchiq_release_service(struct vchiq_instance *instance,
- unsigned int service);
+extern int vchiq_initialise(struct vchiq_instance **pinstance);
+extern int vchiq_shutdown(struct vchiq_instance *instance);
+extern int vchiq_connect(struct vchiq_instance *instance);
+extern int vchiq_open_service(struct vchiq_instance *instance,
+ const struct vchiq_service_params_kernel *params,
+ unsigned int *pservice);
+extern int vchiq_close_service(struct vchiq_instance *instance,
+ unsigned int service);
+extern int vchiq_use_service(struct vchiq_instance *instance, unsigned int service);
+extern int vchiq_release_service(struct vchiq_instance *instance,
+ unsigned int service);
extern void vchiq_msg_queue_push(struct vchiq_instance *instance, unsigned int handle,
struct vchiq_header *header);
extern void vchiq_release_message(struct vchiq_instance *instance, unsigned int service,
struct vchiq_header *header);
extern int vchiq_queue_kernel_message(struct vchiq_instance *instance, unsigned int handle,
void *data, unsigned int size);
-extern enum vchiq_status vchiq_bulk_transmit(struct vchiq_instance *instance, unsigned int service,
- const void *data, unsigned int size, void *userdata,
- enum vchiq_bulk_mode mode);
-extern enum vchiq_status vchiq_bulk_receive(struct vchiq_instance *instance, unsigned int service,
- void *data, unsigned int size, void *userdata,
- enum vchiq_bulk_mode mode);
+extern int vchiq_bulk_transmit(struct vchiq_instance *instance, unsigned int service,
+ const void *data, unsigned int size, void *userdata,
+ enum vchiq_bulk_mode mode);
+extern int vchiq_bulk_receive(struct vchiq_instance *instance, unsigned int service,
+ void *data, unsigned int size, void *userdata,
+ enum vchiq_bulk_mode mode);
extern void *vchiq_get_service_userdata(struct vchiq_instance *instance, unsigned int service);
-extern enum vchiq_status vchiq_get_peer_version(struct vchiq_instance *instance,
- unsigned int handle,
- short *peer_version);
+extern int vchiq_get_peer_version(struct vchiq_instance *instance, unsigned int handle,
+ short *peer_version);
extern struct vchiq_header *vchiq_msg_hold(struct vchiq_instance *instance, unsigned int handle);
#endif /* VCHIQ_H */
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index dc33490ba7fb..fa92c34890e0 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -151,7 +151,7 @@ static struct semaphore g_free_fragments_sema;
static DEFINE_SEMAPHORE(g_free_fragments_mutex);
-static enum vchiq_status
+static int
vchiq_blocking_bulk_transfer(struct vchiq_instance *instance, unsigned int handle, void *data,
unsigned int size, enum vchiq_bulk_dir dir);
@@ -722,7 +722,7 @@ void free_bulk_waiter(struct vchiq_instance *instance)
}
}
-enum vchiq_status vchiq_shutdown(struct vchiq_instance *instance)
+int vchiq_shutdown(struct vchiq_instance *instance)
{
enum vchiq_status status = VCHIQ_SUCCESS;
struct vchiq_state *state = instance->state;
@@ -749,7 +749,7 @@ static int vchiq_is_connected(struct vchiq_instance *instance)
return instance->connected;
}
-enum vchiq_status vchiq_connect(struct vchiq_instance *instance)
+int vchiq_connect(struct vchiq_instance *instance)
{
enum vchiq_status status;
struct vchiq_state *state = instance->state;
@@ -773,7 +773,7 @@ enum vchiq_status vchiq_connect(struct vchiq_instance *instance)
}
EXPORT_SYMBOL(vchiq_connect);
-static enum vchiq_status
+static int
vchiq_add_service(struct vchiq_instance *instance,
const struct vchiq_service_params_kernel *params,
unsigned int *phandle)
@@ -803,7 +803,7 @@ vchiq_add_service(struct vchiq_instance *instance,
return status;
}
-enum vchiq_status
+int
vchiq_open_service(struct vchiq_instance *instance,
const struct vchiq_service_params_kernel *params,
unsigned int *phandle)
@@ -835,7 +835,7 @@ vchiq_open_service(struct vchiq_instance *instance,
}
EXPORT_SYMBOL(vchiq_open_service);
-enum vchiq_status
+int
vchiq_bulk_transmit(struct vchiq_instance *instance, unsigned int handle, const void *data,
unsigned int size, void *userdata, enum vchiq_bulk_mode mode)
{
@@ -873,9 +873,9 @@ vchiq_bulk_transmit(struct vchiq_instance *instance, unsigned int handle, const
}
EXPORT_SYMBOL(vchiq_bulk_transmit);
-enum vchiq_status vchiq_bulk_receive(struct vchiq_instance *instance, unsigned int handle,
- void *data, unsigned int size, void *userdata,
- enum vchiq_bulk_mode mode)
+int vchiq_bulk_receive(struct vchiq_instance *instance, unsigned int handle,
+ void *data, unsigned int size, void *userdata,
+ enum vchiq_bulk_mode mode)
{
enum vchiq_status status;
@@ -910,7 +910,7 @@ enum vchiq_status vchiq_bulk_receive(struct vchiq_instance *instance, unsigned i
}
EXPORT_SYMBOL(vchiq_bulk_receive);
-static enum vchiq_status
+static int
vchiq_blocking_bulk_transfer(struct vchiq_instance *instance, unsigned int handle, void *data,
unsigned int size, enum vchiq_bulk_dir dir)
{
@@ -983,7 +983,7 @@ vchiq_blocking_bulk_transfer(struct vchiq_instance *instance, unsigned int handl
return status;
}
-static enum vchiq_status
+static int
add_completion(struct vchiq_instance *instance, enum vchiq_reason reason,
struct vchiq_header *header, struct user_service *user_service,
void *bulk_userdata)
@@ -1044,7 +1044,7 @@ add_completion(struct vchiq_instance *instance, enum vchiq_reason reason,
return VCHIQ_SUCCESS;
}
-enum vchiq_status
+int
service_callback(struct vchiq_instance *instance, enum vchiq_reason reason,
struct vchiq_header *header, unsigned int handle, void *bulk_userdata)
{
@@ -1314,7 +1314,7 @@ vchiq_get_state(void)
* Autosuspend related functionality
*/
-static enum vchiq_status
+static int
vchiq_keepalive_vchiq_callback(struct vchiq_instance *instance,
enum vchiq_reason reason,
struct vchiq_header *header,
@@ -1587,7 +1587,7 @@ vchiq_instance_set_trace(struct vchiq_instance *instance, int trace)
instance->trace = (trace != 0);
}
-enum vchiq_status
+int
vchiq_use_service(struct vchiq_instance *instance, unsigned int handle)
{
enum vchiq_status ret = VCHIQ_ERROR;
@@ -1601,7 +1601,7 @@ vchiq_use_service(struct vchiq_instance *instance, unsigned int handle)
}
EXPORT_SYMBOL(vchiq_use_service);
-enum vchiq_status
+int
vchiq_release_service(struct vchiq_instance *instance, unsigned int handle)
{
enum vchiq_status ret = VCHIQ_ERROR;
@@ -1695,7 +1695,7 @@ vchiq_dump_service_use_state(struct vchiq_state *state)
kfree(service_data);
}
-enum vchiq_status
+int
vchiq_check_service(struct vchiq_service *service)
{
struct vchiq_arm_state *arm_state;
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
index 2851ef6b9cd0..2fb31f9b527f 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
@@ -85,13 +85,13 @@ extern struct vchiq_state g_state;
extern struct vchiq_state *
vchiq_get_state(void);
-enum vchiq_status
+int
vchiq_use_service(struct vchiq_instance *instance, unsigned int handle);
-extern enum vchiq_status
+extern int
vchiq_release_service(struct vchiq_instance *instance, unsigned int handle);
-extern enum vchiq_status
+extern int
vchiq_check_service(struct vchiq_service *service);
extern void
@@ -100,10 +100,10 @@ vchiq_dump_platform_use_state(struct vchiq_state *state);
extern void
vchiq_dump_service_use_state(struct vchiq_state *state);
-extern enum vchiq_status
+extern int
vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service,
enum USE_TYPE_E use_type);
-extern enum vchiq_status
+extern int
vchiq_release_internal(struct vchiq_state *state,
struct vchiq_service *service);
@@ -137,7 +137,7 @@ static inline int vchiq_register_chrdev(struct device *parent) { return 0; }
#endif /* IS_ENABLED(CONFIG_VCHIQ_CDEV) */
-extern enum vchiq_status
+extern int
service_callback(struct vchiq_instance *vchiq_instance, enum vchiq_reason reason,
struct vchiq_header *header, unsigned int handle, void *bulk_userdata);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
index 45ed30bfdbf5..a543c29b1598 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
@@ -463,7 +463,7 @@ mark_service_closing(struct vchiq_service *service)
mark_service_closing_internal(service, 0);
}
-static inline enum vchiq_status
+static inline int
make_service_callback(struct vchiq_service *service, enum vchiq_reason reason,
struct vchiq_header *header, void *bulk_userdata)
{
@@ -900,7 +900,7 @@ copy_message_data(ssize_t (*copy_callback)(void *context, void *dest, size_t off
}
/* Called by the slot handler and application threads */
-static enum vchiq_status
+static int
queue_message(struct vchiq_state *state, struct vchiq_service *service,
int msgid,
ssize_t (*copy_callback)(void *context, void *dest,
@@ -1139,7 +1139,7 @@ queue_message(struct vchiq_state *state, struct vchiq_service *service,
}
/* Called by the slot handler and application threads */
-static enum vchiq_status
+static int
queue_message_sync(struct vchiq_state *state, struct vchiq_service *service,
int msgid,
ssize_t (*copy_callback)(void *context, void *dest,
@@ -1299,7 +1299,7 @@ get_bulk_reason(struct vchiq_bulk *bulk)
}
/* Called by the slot handler - don't hold the bulk mutex */
-static enum vchiq_status
+static int
notify_bulks(struct vchiq_service *service, struct vchiq_bulk_queue *queue,
int retry_poll)
{
@@ -2486,7 +2486,7 @@ vchiq_add_service_internal(struct vchiq_state *state,
return service;
}
-enum vchiq_status
+int
vchiq_open_service_internal(struct vchiq_service *service, int client_id)
{
struct vchiq_open_payload payload = {
@@ -2609,7 +2609,7 @@ do_abort_bulks(struct vchiq_service *service)
return (status == VCHIQ_SUCCESS);
}
-static enum vchiq_status
+static int
close_service_complete(struct vchiq_service *service, int failstate)
{
enum vchiq_status status;
@@ -2674,7 +2674,7 @@ close_service_complete(struct vchiq_service *service, int failstate)
}
/* Called by the slot handler */
-enum vchiq_status
+int
vchiq_close_service_internal(struct vchiq_service *service, int close_recvd)
{
struct vchiq_state *state = service->state;
@@ -2832,7 +2832,7 @@ vchiq_free_service_internal(struct vchiq_service *service)
vchiq_service_put(service);
}
-enum vchiq_status
+int
vchiq_connect_internal(struct vchiq_state *state, struct vchiq_instance *instance)
{
struct vchiq_service *service;
@@ -2879,7 +2879,7 @@ vchiq_shutdown_internal(struct vchiq_state *state, struct vchiq_instance *instan
}
}
-enum vchiq_status
+int
vchiq_close_service(struct vchiq_instance *instance, unsigned int handle)
{
/* Unregister the service */
@@ -2937,7 +2937,7 @@ vchiq_close_service(struct vchiq_instance *instance, unsigned int handle)
}
EXPORT_SYMBOL(vchiq_close_service);
-enum vchiq_status
+int
vchiq_remove_service(struct vchiq_instance *instance, unsigned int handle)
{
/* Unregister the service */
@@ -3004,9 +3004,9 @@ vchiq_remove_service(struct vchiq_instance *instance, unsigned int handle)
* When called in blocking mode, the userdata field points to a bulk_waiter
* structure.
*/
-enum vchiq_status vchiq_bulk_transfer(struct vchiq_instance *instance, unsigned int handle,
- void *offset, void __user *uoffset, int size, void *userdata,
- enum vchiq_bulk_mode mode, enum vchiq_bulk_dir dir)
+int vchiq_bulk_transfer(struct vchiq_instance *instance, unsigned int handle,
+ void *offset, void __user *uoffset, int size, void *userdata,
+ enum vchiq_bulk_mode mode, enum vchiq_bulk_dir dir)
{
struct vchiq_service *service = find_service_by_handle(instance, handle);
struct vchiq_bulk_queue *queue;
@@ -3161,7 +3161,7 @@ enum vchiq_status vchiq_bulk_transfer(struct vchiq_instance *instance, unsigned
return status;
}
-enum vchiq_status
+int
vchiq_queue_message(struct vchiq_instance *instance, unsigned int handle,
ssize_t (*copy_callback)(void *context, void *dest,
size_t offset, size_t maxsize),
@@ -3277,7 +3277,7 @@ release_message_sync(struct vchiq_state *state, struct vchiq_header *header)
remote_event_signal(&state->remote->sync_release);
}
-enum vchiq_status
+int
vchiq_get_peer_version(struct vchiq_instance *instance, unsigned int handle, short *peer_version)
{
enum vchiq_status status = VCHIQ_ERROR;
@@ -3640,7 +3640,7 @@ vchiq_loud_error_footer(void)
"============================================================================");
}
-enum vchiq_status vchiq_send_remote_use(struct vchiq_state *state)
+int vchiq_send_remote_use(struct vchiq_state *state)
{
if (state->conn_state == VCHIQ_CONNSTATE_DISCONNECTED)
return VCHIQ_RETRY;
@@ -3648,7 +3648,7 @@ enum vchiq_status vchiq_send_remote_use(struct vchiq_state *state)
return queue_message(state, NULL, MAKE_REMOTE_USE, NULL, NULL, 0, 0);
}
-enum vchiq_status vchiq_send_remote_use_active(struct vchiq_state *state)
+int vchiq_send_remote_use_active(struct vchiq_state *state)
{
if (state->conn_state == VCHIQ_CONNSTATE_DISCONNECTED)
return VCHIQ_RETRY;
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h
index 8b4a38f5b3f2..ec3505424718 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h
@@ -458,7 +458,7 @@ vchiq_init_slots(void *mem_base, int mem_size);
extern int
vchiq_init_state(struct vchiq_state *state, struct vchiq_slot_zero *slot_zero, struct device *dev);
-extern enum vchiq_status
+extern int
vchiq_connect_internal(struct vchiq_state *state, struct vchiq_instance *instance);
struct vchiq_service *
@@ -467,10 +467,10 @@ vchiq_add_service_internal(struct vchiq_state *state,
int srvstate, struct vchiq_instance *instance,
void (*userdata_term)(void *userdata));
-extern enum vchiq_status
+extern int
vchiq_open_service_internal(struct vchiq_service *service, int client_id);
-extern enum vchiq_status
+extern int
vchiq_close_service_internal(struct vchiq_service *service, int close_recvd);
extern void
@@ -485,7 +485,7 @@ vchiq_shutdown_internal(struct vchiq_state *state, struct vchiq_instance *instan
extern void
remote_event_pollall(struct vchiq_state *state);
-extern enum vchiq_status
+extern int
vchiq_bulk_transfer(struct vchiq_instance *instance, unsigned int handle, void *offset,
void __user *uoffset, int size, void *userdata, enum vchiq_bulk_mode mode,
enum vchiq_bulk_dir dir);
@@ -536,7 +536,7 @@ vchiq_service_get(struct vchiq_service *service);
extern void
vchiq_service_put(struct vchiq_service *service);
-extern enum vchiq_status
+extern int
vchiq_queue_message(struct vchiq_instance *instance, unsigned int handle,
ssize_t (*copy_callback)(void *context, void *dest,
size_t offset, size_t maxsize),
@@ -568,13 +568,13 @@ void vchiq_on_remote_release(struct vchiq_state *state);
int vchiq_platform_init_state(struct vchiq_state *state);
-enum vchiq_status vchiq_check_service(struct vchiq_service *service);
+int vchiq_check_service(struct vchiq_service *service);
void vchiq_on_remote_use_active(struct vchiq_state *state);
-enum vchiq_status vchiq_send_remote_use(struct vchiq_state *state);
+int vchiq_send_remote_use(struct vchiq_state *state);
-enum vchiq_status vchiq_send_remote_use_active(struct vchiq_state *state);
+int vchiq_send_remote_use_active(struct vchiq_state *state);
void vchiq_platform_conn_state_changed(struct vchiq_state *state,
enum vchiq_connstate oldstate,
@@ -584,7 +584,7 @@ void vchiq_set_conn_state(struct vchiq_state *state, enum vchiq_connstate newsta
void vchiq_log_dump_mem(const char *label, u32 addr, const void *void_mem, size_t num_bytes);
-enum vchiq_status vchiq_remove_service(struct vchiq_instance *instance, unsigned int service);
+int vchiq_remove_service(struct vchiq_instance *instance, unsigned int service);
int vchiq_get_client_id(struct vchiq_instance *instance, unsigned int service);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h
index 86d77f2eeea5..96f50beace44 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_ioctl.h
@@ -12,10 +12,10 @@
struct vchiq_service_params {
int fourcc;
- enum vchiq_status __user (*callback)(enum vchiq_reason reason,
- struct vchiq_header *header,
- unsigned int handle,
- void *bulk_userdata);
+ int __user (*callback)(enum vchiq_reason reason,
+ struct vchiq_header *header,
+ unsigned int handle,
+ void *bulk_userdata);
void __user *userdata;
short version; /* Increment for non-trivial changes */
short version_min; /* Update for incompatible changes */
diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index 294b184d4a49..038881827336 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -548,10 +548,9 @@ static void bulk_abort_cb(struct vchiq_mmal_instance *instance,
}
/* incoming event service callback */
-static enum vchiq_status service_callback(struct vchiq_instance *vchiq_instance,
- enum vchiq_reason reason,
- struct vchiq_header *header,
- unsigned int handle, void *bulk_ctx)
+static int service_callback(struct vchiq_instance *vchiq_instance,
+ enum vchiq_reason reason, struct vchiq_header *header,
+ unsigned int handle, void *bulk_ctx)
{
struct vchiq_mmal_instance *instance = vchiq_get_service_userdata(vchiq_instance, handle);
u32 msg_len;
--
2.38.1
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