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-rw-r--r--drivers/usb/gadget/function/uvc.h4
-rw-r--r--drivers/usb/gadget/function/uvc_video.c6
-rw-r--r--drivers/usb/gadget/function/uvc_video.h2
3 files changed, 6 insertions, 6 deletions
diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h
index 9d5f17b551bb..b05de36e2c60 100644
--- a/drivers/usb/gadget/function/uvc.h
+++ b/drivers/usb/gadget/function/uvc.h
@@ -68,6 +68,8 @@ extern unsigned int uvc_gadget_trace_param;
#define UVC_MAX_REQUEST_SIZE 64
#define UVC_MAX_EVENTS 4
+#define UVCG_REQUEST_HEADER_LEN 2
+
/* ------------------------------------------------------------------------
* Structures
*/
@@ -76,7 +78,7 @@ struct uvc_request {
u8 *req_buffer;
struct uvc_video *video;
struct sg_table sgt;
- u8 header[2];
+ u8 header[UVCG_REQUEST_HEADER_LEN];
};
struct uvc_video {
diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index b4a763e5f70e..f3e97a4fc030 100644
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -33,7 +33,7 @@ uvc_video_encode_header(struct uvc_video *video, struct uvc_buffer *buf,
if (buf->bytesused - video->queue.buf_used <= len - UVCG_REQUEST_HEADER_LEN)
data[1] |= UVC_STREAM_EOF;
- return 2;
+ return UVCG_REQUEST_HEADER_LEN;
}
static int
@@ -302,8 +302,8 @@ uvc_video_alloc_requests(struct uvc_video *video)
list_add_tail(&video->ureq[i].req->list, &video->req_free);
/* req_size/PAGE_SIZE + 1 for overruns and + 1 for header */
sg_alloc_table(&video->ureq[i].sgt,
- DIV_ROUND_UP(req_size - 2, PAGE_SIZE) + 2,
- GFP_KERNEL);
+ DIV_ROUND_UP(req_size - UVCG_REQUEST_HEADER_LEN,
+ PAGE_SIZE) + 2, GFP_KERNEL);
}
video->req_size = req_size;
diff --git a/drivers/usb/gadget/function/uvc_video.h b/drivers/usb/gadget/function/uvc_video.h
index 9bf19475f6f9..03adeefa343b 100644
--- a/drivers/usb/gadget/function/uvc_video.h
+++ b/drivers/usb/gadget/function/uvc_video.h
@@ -12,8 +12,6 @@
#ifndef __UVC_VIDEO_H__
#define __UVC_VIDEO_H__
-#define UVCG_REQUEST_HEADER_LEN 2
-
struct uvc_video;
int uvcg_video_enable(struct uvc_video *video, int enable);