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staging: vchi: Get rid of vchi_msg_dequeue()

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Nobody uses it. Get rid of it.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200629150945.10720-15-nsaenzjulienne@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nicolas Saenz Julienne 2020-06-29 17:09:12 +02:00 committed by Greg Kroah-Hartman
parent b74a8932df
commit 6cdd7b7953
2 changed files with 0 additions and 46 deletions
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7
drivers/staging/vc04_services/interface/vchi/vchi.h
View File

@ -93,13 +93,6 @@ extern int32_t vchi_service_release(struct vchi_service *service);
extern int vchi_queue_kernel_message(struct vchi_service *service, void *data,
unsigned int size);
// Routine to receive a msg from a service
// Dequeue is equivalent to hold, copy into client buffer, release
extern int32_t vchi_msg_dequeue(struct vchi_service *service, void *data,
uint32_t max_data_size_to_read,
uint32_t *actual_msg_size,
enum vchi_flags flags);
// Routine to look at a message in place.
// The message is dequeued, so the caller is left holding it; the descriptor is
// filled in and must be released when the user has finished with the message.

39
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
View File

@ -160,45 +160,6 @@ int32_t vchi_bulk_queue_transmit(struct vchi_service *service,
}
EXPORT_SYMBOL(vchi_bulk_queue_transmit);
/***********************************************************
* Name: vchi_msg_dequeue
*
* Arguments: struct vchi_service *service,
* void *data,
* uint32_t max_data_size_to_read,
* uint32_t *actual_msg_size
* enum vchi_flags flags
*
* Description: Routine to dequeue a message into the supplied buffer
*
* Returns: int32_t - success == 0
*
***********************************************************/
int32_t vchi_msg_dequeue(struct vchi_service *service, void *data,
uint32_t max_data_size_to_read,
uint32_t *actual_msg_size, enum vchi_flags flags)
{
struct vchiq_header *header;
WARN_ON((flags != VCHI_FLAGS_NONE) &&
(flags != VCHI_FLAGS_BLOCK_UNTIL_OP_COMPLETE));
if (flags == VCHI_FLAGS_NONE)
if (vchiu_queue_is_empty(&service->queue))
return -1;
header = vchiu_queue_pop(&service->queue);
memcpy(data, header->data, header->size < max_data_size_to_read ?
header->size : max_data_size_to_read);
*actual_msg_size = header->size;
vchiq_release_message(service->handle, header);
return 0;
}
EXPORT_SYMBOL(vchi_msg_dequeue);
/***********************************************************
* Name: vchi_held_msg_release