From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: gregkh@linuxfoundation.org
Cc: kernel-list@raspberrypi.com, laurent.pinchart@ideasonboard.com,
linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Subject: [PATCH 13/50] staging: vchi: Get rid of vchi_msg_peek()
Date: Tue, 23 Jun 2020 18:41:59 +0200 [thread overview]
Message-ID: <20200623164235.29566-14-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20200623164235.29566-1-nsaenzjulienne@suse.de>
There already is a function that covers most of the functionality
vchi_msg_peek() provides: vchi_msg_hold(). The main difference being
that the later removes the message from vchu's queue while the other
does it later on, while releasing the message.
There are no users of this function that can't be trivially converted to
vchi_msg_hold(). So, for the sake of removing duplicate code, get rid of
vchi_msg_peek().
Note that the opposite change could be performed as well. But
vchi_msg_peek()'s implementation was deemed less robust as messages have
to be released in order.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
---
.../vc04_services/interface/vchi/vchi.h | 12 ----
.../interface/vchiq_arm/vchiq_shim.c | 64 -------------------
.../interface/vchiq_arm/vchiq_util.c | 12 ----
.../interface/vchiq_arm/vchiq_util.h | 1 -
4 files changed, 89 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchi/vchi.h b/drivers/staging/vc04_services/interface/vchi/vchi.h
index 1a981e98e82b..1daef5ad70f1 100644
--- a/drivers/staging/vc04_services/interface/vchi/vchi.h
+++ b/drivers/staging/vc04_services/interface/vchi/vchi.h
@@ -103,18 +103,6 @@ extern int32_t vchi_msg_dequeue(struct vchi_service_handle *handle,
uint32_t *actual_msg_size,
enum vchi_flags flags);
-// Routine to look at a message in place.
-// The message is not dequeued, so a subsequent call to peek or dequeue
-// will return the same message.
-extern int32_t vchi_msg_peek(struct vchi_service_handle *handle,
- void **data,
- uint32_t *msg_size,
- enum vchi_flags flags);
-
-// Routine to remove a message after it has been read in place with peek
-// The first message on the queue is dequeued.
-extern int32_t vchi_msg_remove(struct vchi_service_handle *handle);
-
// 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.
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
index 75d87b6992c4..54c2492b7c83 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
@@ -18,70 +18,6 @@ struct shim_service {
void *callback_param;
};
-/***********************************************************
- * Name: vchi_msg_peek
- *
- * Arguments: struct vchi_service_handle *handle,
- * void **data,
- * uint32_t *msg_size,
-
- * enum vchi_flags flags
- *
- * Description: Routine to return a pointer to the current message (to allow in
- * place processing). The message can be removed using
- * vchi_msg_remove when you're finished
- *
- * Returns: int32_t - success == 0
- *
- ***********************************************************/
-int32_t vchi_msg_peek(struct vchi_service_handle *handle,
- void **data,
- uint32_t *msg_size,
- enum vchi_flags flags)
-{
- struct shim_service *service = (struct shim_service *)handle;
- 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_peek(&service->queue);
-
- *data = header->data;
- *msg_size = header->size;
-
- return 0;
-}
-EXPORT_SYMBOL(vchi_msg_peek);
-
-/***********************************************************
- * Name: vchi_msg_remove
- *
- * Arguments: struct vchi_service_handle *handle,
- *
- * Description: Routine to remove a message (after it has been read with
- * vchi_msg_peek)
- *
- * Returns: int32_t - success == 0
- *
- ***********************************************************/
-int32_t vchi_msg_remove(struct vchi_service_handle *handle)
-{
- struct shim_service *service = (struct shim_service *)handle;
- struct vchiq_header *header;
-
- header = vchiu_queue_pop(&service->queue);
-
- vchiq_release_message(service->handle, header);
-
- return 0;
-}
-EXPORT_SYMBOL(vchi_msg_remove);
-
int vchi_queue_kernel_message(struct vchi_service_handle *handle, void *data,
unsigned int size)
{
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c
index 644844d88fed..c1c81f9ab9e6 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.c
@@ -55,18 +55,6 @@ void vchiu_queue_push(struct vchiu_queue *queue, struct vchiq_header *header)
complete(&queue->push);
}
-struct vchiq_header *vchiu_queue_peek(struct vchiu_queue *queue)
-{
- while (queue->write == queue->read) {
- if (wait_for_completion_interruptible(&queue->push))
- flush_signals(current);
- }
-
- complete(&queue->push); // We haven't removed anything from the queue.
-
- return queue->storage[queue->read & (queue->size - 1)];
-}
-
struct vchiq_header *vchiu_queue_pop(struct vchiu_queue *queue)
{
struct vchiq_header *header;
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
index f03a4250de0d..1c90a8da1a92 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
@@ -44,7 +44,6 @@ extern int vchiu_queue_is_empty(struct vchiu_queue *queue);
extern void vchiu_queue_push(struct vchiu_queue *queue,
struct vchiq_header *header);
-extern struct vchiq_header *vchiu_queue_peek(struct vchiu_queue *queue);
extern struct vchiq_header *vchiu_queue_pop(struct vchiu_queue *queue);
#endif
--
2.27.0
next prev parent reply other threads:[~2020-06-23 16:48 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 16:41 [PATCH 00/50] staging: vchiq: Getting rid of the vchi/vchiq split Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 01/50] staging: bcm2835: Break MMAL support out from camera Nicolas Saenz Julienne
2020-06-23 19:20 ` kernel test robot
2020-06-23 16:41 ` [PATCH 02/50] staging: mmal-vchiq: Allocate and free components as required Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 03/50] staging: mmal-vchiq: Avoid use of bool in structures Nicolas Saenz Julienne
2020-06-23 22:11 ` Joe Perches
2020-06-24 10:26 ` Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 04/50] staging: mmal-vchiq: Make timeout a defined parameter Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 05/50] staging: mmal-vchiq: Make a mmal_buf struct for passing parameters Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 06/50] staging: mmal-vchiq: Fixup vchiq-mmal include ordering Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 07/50] staging: mmal-vchiq: Fix client_component for 64 bit kernel Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 08/50] staging: mmal-vchiq: Always return the param size from param_get Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 09/50] staging: mmal-vchiq: If the VPU returns an error, don't negate it Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 10/50] staging: mmal-vchiq: Fix formatting errors in mmal_parameters.h Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 11/50] staging: vchiq_arm: Add a matching unregister call Nicolas Saenz Julienne
2020-06-23 16:41 ` [PATCH 12/50] staging: vchi: Get rid of all useless callback reasons Nicolas Saenz Julienne
2020-06-23 16:41 ` Nicolas Saenz Julienne [this message]
2020-06-23 16:42 ` [PATCH 14/50] staging: vchi: Get rid of struct vchi_instance_handle Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 15/50] staging: vchi: Unify struct shim_service and struct vchi_service_handle Nicolas Saenz Julienne
2020-06-24 14:11 ` Dan Carpenter
2020-06-24 14:13 ` Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 16/50] staging: vc04_services: bcm2835-audio: Use vchi_msg_hold() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 17/50] staging: vchi: Get rid of vchi_msg_dequeue() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 18/50] staging: vchi_common: Get rid of all unused definitions Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 19/50] staging: vchi: Get rid of unnecessary defines Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 20/50] staging: vc04_services: Get rid of vchi_cfg.h Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 21/50] staging: vchi: Get rid of flags argument in vchi_msg_hold() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 22/50] staging: vchi: Use enum vchiq_bulk_mode instead of vchi's transmission flags Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 23/50] staging: vchi: Use vchiq's enum vchiq_reason Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 24/50] staging: vchi: Get rid of effect less expression Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 25/50] staging: vchiq: Introduce vchiq_validate_params() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 26/50] staging: vchiq: Move message queue into struct vchiq_service Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 27/50] staging: vchiq: Get rid of vchiq_util.h Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 28/50] staging: vchi: Expose struct vchi_service Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 29/50] staging: vchiq: Export vchiq_get_service_userdata() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 30/50] staging: vchiq: Export vchiq_msg_queue_push Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 31/50] staging: vchi: Get rid of vchiq_shim's message callback Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 32/50] staging: vchiq: Don't use a typedef for vchiq_callback Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 33/50] staging: vchi: Use struct vchiq_service_params Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 34/50] staging: vchi: Get rid of struct vchi_service Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 35/50] staging: vchiq: Pass vchiq's message when holding a message Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 36/50] staging: vchi: Rework vchi_msg_hold() to match vchiq_msg_hold() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 37/50] staging: vchiq: Unify fourcc definition mechanisms Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 38/50] staging: vchi: Get rid of struct vchiq_instance forward declaration Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 39/50] staging: vchi: Don't include vchiq_core.h Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 40/50] staging: vchiq: Get rid of unnecessary definitions in vchiq_if.h Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 41/50] staging: vchiq: Make vchiq_add_service() local Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 42/50] staging: vchiq: Move definitions only used by core into core header Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 43/50] staging: vchi: Get rid of vchi_bulk_queue_receive() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 44/50] staging: vchi: Get rid of vchi_bulk_queue_transmit() Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 45/50] staging: vchi: Move vchi_queue_kernel_message() into vchiq Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 46/50] staging: vchiq: Get rid of vchi Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 47/50] staging: vchiq: Move conditional barrier definition into vchiq_core.h Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 48/50] staging: vchiq: Use vchiq.h as the main header file for services Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 49/50] staging: vchiq: Move defines into core header Nicolas Saenz Julienne
2020-06-23 16:42 ` [PATCH 50/50] staging: vchiq: Move vchiq.h into include directory Nicolas Saenz Julienne
2020-06-25 8:24 ` Nicolas Saenz Julienne
2020-06-25 14:34 ` [PATCH 00/50] staging: vchiq: Getting rid of the vchi/vchiq split Greg KH
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