diff mbox

[v2,3/3] media: vb2-core: vb2_ops: document non-interrupt-context calling

Message ID 1520511982-985-3-git-send-email-luca@lucaceresoli.net (mailing list archive)
State Accepted, archived
Delegated to: Hans Verkuil
Headers

Commit Message

Luca Ceresoli March 8, 2018, 12:26 p.m. UTC 
  Driver writers can benefit in knowing if/when callbacks are called in
interrupt context. But it is not completely obvious here, so document
it.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Pawel Osciak <pawel@osciak.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>

---
Changes v1 -> v2:
 - Fix typo in the title.
---
 include/media/videobuf2-core.h | 3 +++
 1 file changed, 3 insertions(+)
diff mbox

Patch

diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index f20000887d3c..f6818f732f34 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -296,6 +296,9 @@  struct vb2_buffer {
 /**
  * struct vb2_ops - driver-specific callbacks.
  *
+ * These operations are not called from interrupt context except where
+ * mentioned specifically.
+ *
  * @queue_setup:	called from VIDIOC_REQBUFS() and VIDIOC_CREATE_BUFS()
  *			handlers before memory allocation. It can be called
  *			twice: if the original number of requested buffers