[PATCH 2/6] staging: bcm2835-v4l2: Update the driver to the current VCHI API.

[Eric Anholt]

49bec49fd7f2 ("staging: vc04_services: remove vchiq_copy_from_user")
removed the flags/msg_handle arguments, which were unused, and pushed
the implementation of copying using memcpy vs copy_from_user to the
caller.

Signed-off-by: Eric Anholt <e...@anholt.net>
---
 drivers/staging/media/platform/bcm2835/mmal-vchiq.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/media/platform/bcm2835/mmal-vchiq.c 
b/drivers/staging/media/platform/bcm2835/mmal-vchiq.c
index 781322542d5a..24bd2948136c 100644
--- a/drivers/staging/media/platform/bcm2835/mmal-vchiq.c
+++ b/drivers/staging/media/platform/bcm2835/mmal-vchiq.c
@@ -378,6 +378,14 @@ static int inline_receive(struct vchiq_mmal_instance 
*instance,
        return 0;
 }
 
+static ssize_t mmal_memcpy_wrapper(void *src, void *dst,
+                                  size_t offset, size_t size)
+{
+       memcpy(dst + offset, src + offset, size);
+
+       return size;
+}
+
 /* queue the buffer availability with MMAL_MSG_TYPE_BUFFER_FROM_HOST */
 static int
 buffer_from_host(struct vchiq_mmal_instance *instance,
@@ -442,10 +450,9 @@ buffer_from_host(struct vchiq_mmal_instance *instance,
 
        vchi_service_use(instance->handle);
 
-       ret = vchi_msg_queue(instance->handle, &m,
+       ret = vchi_msg_queue(instance->handle, mmal_memcpy_wrapper, &m,
                             sizeof(struct mmal_msg_header) +
-                            sizeof(m.u.buffer_from_host),
-                            VCHI_FLAGS_BLOCK_UNTIL_QUEUED, NULL);
+                            sizeof(m.u.buffer_from_host));
 
        if (ret != 0) {
                release_msg_context(msg_context);
@@ -731,9 +738,9 @@ static int send_synchronous_mmal_msg(struct 
vchiq_mmal_instance *instance,
        vchi_service_use(instance->handle);
 
        ret = vchi_msg_queue(instance->handle,
+                            mmal_memcpy_wrapper,
                             msg,
-                            sizeof(struct mmal_msg_header) + payload_len,
-                            VCHI_FLAGS_BLOCK_UNTIL_QUEUED, NULL);
+                            sizeof(struct mmal_msg_header) + payload_len);
 
        vchi_service_release(instance->handle);
 
-- 
2.11.0

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