[PATCH 3/4] staging: vc04_services: avoid the use of typedef for function pointers

From: Gaston Gonzalez
Date: Mon Dec 20 2021 - 16:31:29 EST


Replace the function pointer typedef vchiq_mmal_buffer_cb with
equivalent declaration to better align with the linux kernel coding
style.

While at it, realignments were done in some touched lines.

Signed-off-by: Gaston Gonzalez <gascoar@xxxxxxxxx>
---
.../vc04_services/vchiq-mmal/mmal-vchiq.c | 24 +++++++++----------
.../vc04_services/vchiq-mmal/mmal-vchiq.h | 13 +++++-----
2 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
index 76d3f0399964..54e5ce245ae7 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c
@@ -269,10 +269,10 @@ static void buffer_work_cb(struct work_struct *work)

atomic_dec(&msg_context->u.bulk.port->buffers_with_vpu);

- msg_context->u.bulk.port->buffer_cb(msg_context->u.bulk.instance,
- msg_context->u.bulk.port,
- msg_context->u.bulk.status,
- msg_context->u.bulk.buffer);
+ msg_context->u.bulk.port->vchiq_mmal_buffer_cb(msg_context->u.bulk.instance,
+ msg_context->u.bulk.port,
+ msg_context->u.bulk.status,
+ msg_context->u.bulk.buffer);
}

/* workqueue scheduled callback to handle receiving buffers
@@ -1327,13 +1327,12 @@ static int port_disable(struct vchiq_mmal_instance *instance,
mmalbuf = list_entry(buf_head, struct mmal_buffer,
list);
list_del(buf_head);
- if (port->buffer_cb) {
+ if (port->vchiq_mmal_buffer_cb) {
mmalbuf->length = 0;
mmalbuf->mmal_flags = 0;
mmalbuf->dts = MMAL_TIME_UNKNOWN;
mmalbuf->pts = MMAL_TIME_UNKNOWN;
- port->buffer_cb(instance,
- port, 0, mmalbuf);
+ port->vchiq_mmal_buffer_cb(instance, port, 0, mmalbuf);
}
}

@@ -1363,7 +1362,7 @@ static int port_enable(struct vchiq_mmal_instance *instance,

port->enabled = 1;

- if (port->buffer_cb) {
+ if (port->vchiq_mmal_buffer_cb) {
/* send buffer headers to videocore */
hdr_count = 1;
list_for_each_safe(buf_head, q, &port->buffers) {
@@ -1454,9 +1453,10 @@ EXPORT_SYMBOL_GPL(vchiq_mmal_port_parameter_get);
* enables a port and queues buffers for satisfying callbacks if we
* provide a callback handler
*/
-int vchiq_mmal_port_enable(struct vchiq_mmal_instance *instance,
- struct vchiq_mmal_port *port,
- vchiq_mmal_buffer_cb buffer_cb)
+int vchiq_mmal_port_enable(struct vchiq_mmal_instance *instance, struct vchiq_mmal_port *port,
+ void (*vchiq_mmal_buffer_cb)(struct vchiq_mmal_instance *instance,
+ struct vchiq_mmal_port *port, int status,
+ struct mmal_buffer *buffer))
{
int ret;

@@ -1469,7 +1469,7 @@ int vchiq_mmal_port_enable(struct vchiq_mmal_instance *instance,
goto unlock;
}

- port->buffer_cb = buffer_cb;
+ port->vchiq_mmal_buffer_cb = vchiq_mmal_buffer_cb;

ret = port_enable(instance, port);

diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
index 1dc81ecf9268..39615ce6584a 100644
--- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
+++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.h
@@ -42,11 +42,6 @@ struct vchiq_mmal_port_buffer {

struct vchiq_mmal_port;

-typedef void (*vchiq_mmal_buffer_cb)(
- struct vchiq_mmal_instance *instance,
- struct vchiq_mmal_port *port,
- int status, struct mmal_buffer *buffer);
-
struct vchiq_mmal_port {
u32 enabled:1;
u32 handle;
@@ -76,7 +71,9 @@ struct vchiq_mmal_port {
/* Count of buffers the VPU has yet to return */
atomic_t buffers_with_vpu;
/* callback on buffer completion */
- vchiq_mmal_buffer_cb buffer_cb;
+ void (*vchiq_mmal_buffer_cb)(struct vchiq_mmal_instance *instance,
+ struct vchiq_mmal_port *port, int status,
+ struct mmal_buffer *buffer);
/* callback context */
void *cb_ctx;
};
@@ -126,7 +123,9 @@ int vchiq_mmal_component_disable(
int vchiq_mmal_port_enable(
struct vchiq_mmal_instance *instance,
struct vchiq_mmal_port *port,
- vchiq_mmal_buffer_cb buffer_cb);
+ void (*vchiq_mmal_buffer_cb)(struct vchiq_mmal_instance *instance,
+ struct vchiq_mmal_port *port, int status,
+ struct mmal_buffer *buffer));

/* disable a port
*
--
2.34.1