[PATCH 5.19 0609/1157] usb: gadget: uvc: Fix comment blocks style

Greg Kroah-Hartman
2022-08-16T04:33:18Z

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

[ Upstream commit c5d337a358b3e41bb4f7abd99a79b68a28eafaa2 ]

The UVC gadget driver historically uses the

/* Comment
* style
*/

for multi-line block comments, which is frowned upon. Patches for the
driver are required to use the more standard

/*
* Comment
* style
*/

style. This result in inconsistencies. Fix it by converting all
remaining instances of the old style.

Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20220608174918.14656-1-laurent.pinchart@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/gadget/function/f_uvc.c | 30 ++++++++++++++++---------
drivers/usb/gadget/function/uvc_queue.c | 6 +++--
drivers/usb/gadget/function/uvc_video.c | 12 ++++++----
3 files changed, 31 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index d3feeeb50841..71669e0e4d00 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -141,7 +141,8 @@ static struct usb_endpoint_descriptor uvc_fs_streaming_ep = {
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_SYNC_ASYNC
| USB_ENDPOINT_XFER_ISOC,
- /* The wMaxPacketSize and bInterval values will be initialized from
+ /*
+ * The wMaxPacketSize and bInterval values will be initialized from
* module parameters.
*/
};
@@ -152,7 +153,8 @@ static struct usb_endpoint_descriptor uvc_hs_streaming_ep = {
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_SYNC_ASYNC
| USB_ENDPOINT_XFER_ISOC,
- /* The wMaxPacketSize and bInterval values will be initialized from
+ /*
+ * The wMaxPacketSize and bInterval values will be initialized from
* module parameters.
*/
};
@@ -164,7 +166,8 @@ static struct usb_endpoint_descriptor uvc_ss_streaming_ep = {
.bEndpointAddress = USB_DIR_IN,
.bmAttributes = USB_ENDPOINT_SYNC_ASYNC
| USB_ENDPOINT_XFER_ISOC,
- /* The wMaxPacketSize and bInterval values will be initialized from
+ /*
+ * The wMaxPacketSize and bInterval values will be initialized from
* module parameters.
*/
};
@@ -172,7 +175,8 @@ static struct usb_endpoint_descriptor uvc_ss_streaming_ep = {
static struct usb_ss_ep_comp_descriptor uvc_ss_streaming_comp = {
.bLength = sizeof(uvc_ss_streaming_comp),
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
- /* The bMaxBurst, bmAttributes and wBytesPerInterval values will be
+ /*
+ * The bMaxBurst, bmAttributes and wBytesPerInterval values will be
* initialized from module parameters.
*/
};
@@ -234,7 +238,8 @@ uvc_function_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
if (le16_to_cpu(ctrl->wLength) > UVC_MAX_REQUEST_SIZE)
return -EINVAL;

- /* Tell the complete callback to generate an event for the next request
+ /*
+ * Tell the complete callback to generate an event for the next request
* that will be enqueued by UVCIOC_SEND_RESPONSE.
*/
uvc->event_setup_out = !(ctrl->bRequestType & USB_DIR_IN);
@@ -500,7 +505,8 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed)
if (!uvc_control_desc || !uvc_streaming_cls)
return ERR_PTR(-ENODEV);

- /* Descriptors layout
+ /*
+ * Descriptors layout
*
* uvc_iad
* uvc_control_intf
@@ -597,8 +603,7 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
uvcg_info(f, "%s()\n", __func__);

opts = fi_to_f_uvc_opts(f->fi);
- /* Sanity check the streaming endpoint module parameters.
- */
+ /* Sanity check the streaming endpoint module parameters. */
opts->streaming_interval = clamp(opts->streaming_interval, 1U, 16U);
opts->streaming_maxpacket = clamp(opts->streaming_maxpacket, 1U, 3072U);
opts->streaming_maxburst = min(opts->streaming_maxburst, 15U);
@@ -611,7 +616,8 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f)
opts->streaming_maxpacket);
}

- /* Fill in the FS/HS/SS Video Streaming specific descriptors from the
+ /*
+ * Fill in the FS/HS/SS Video Streaming specific descriptors from the
* module parameters.
*
* NOTE: We assume that the user knows what they are doing and won't
@@ -895,7 +901,8 @@ static void uvc_function_unbind(struct usb_configuration *c,

uvcg_info(f, "%s()\n", __func__);

- /* If we know we're connected via v4l2, then there should be a cleanup
+ /*
+ * If we know we're connected via v4l2, then there should be a cleanup
* of the device from userspace either via UVC_EVENT_DISCONNECT or
* though the video device removal uevent. Allow some time for the
* application to close out before things get deleted.
@@ -912,7 +919,8 @@ static void uvc_function_unbind(struct usb_configuration *c,
v4l2_device_unregister(&uvc->v4l2_dev);

if (uvc->func_connected) {
- /* Wait for the release to occur to ensure there are no longer any
+ /*
+ * Wait for the release to occur to ensure there are no longer any
* pending operations that may cause panics when resources are cleaned
* up.
*/
diff --git a/drivers/usb/gadget/function/uvc_queue.c b/drivers/usb/gadget/function/uvc_queue.c
index d25edc3d2174..951934aa4454 100644
--- a/drivers/usb/gadget/function/uvc_queue.c
+++ b/drivers/usb/gadget/function/uvc_queue.c
@@ -104,7 +104,8 @@ static void uvc_buffer_queue(struct vb2_buffer *vb)
if (likely(!(queue->flags & UVC_QUEUE_DISCONNECTED))) {
list_add_tail(&buf->queue, &queue->irqqueue);
} else {
- /* If the device is disconnected return the buffer to userspace
+ /*
+ * If the device is disconnected return the buffer to userspace
* directly. The next QBUF call will fail with -ENODEV.
*/
buf->state = UVC_BUF_STATE_ERROR;
@@ -255,7 +256,8 @@ void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)
}
queue->buf_used = 0;

- /* This must be protected by the irqlock spinlock to avoid race
+ /*
+ * This must be protected by the irqlock spinlock to avoid race
* conditions between uvc_queue_buffer and the disconnection event that
* could result in an interruptible wait in uvc_dequeue_buffer. Do not
* blindly replace this logic by checking for the UVC_DEV_DISCONNECTED
diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index d42bb3346745..ce421d9cc241 100644
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -378,7 +378,8 @@ static void uvcg_video_pump(struct work_struct *work)
int ret;

while (video->ep->enabled) {
- /* Retrieve the first available USB request, protected by the
+ /*
+ * Retrieve the first available USB request, protected by the
* request lock.
*/
spin_lock_irqsave(&video->req_lock, flags);
@@ -391,7 +392,8 @@ static void uvcg_video_pump(struct work_struct *work)
list_del(&req->list);
spin_unlock_irqrestore(&video->req_lock, flags);

- /* Retrieve the first available video buffer and fill the
+ /*
+ * Retrieve the first available video buffer and fill the
* request, protected by the video queue irqlock.
*/
spin_lock_irqsave(&queue->irqlock, flags);
@@ -403,9 +405,11 @@ static void uvcg_video_pump(struct work_struct *work)

video->encode(req, video, buf);

- /* With usb3 we have more requests. This will decrease the
+ /*
+ * With usb3 we have more requests. This will decrease the
* interrupt load to a quarter but also catches the corner
- * cases, which needs to be handled */
+ * cases, which needs to be handled.
+ */
if (list_empty(&video->req_free) ||
buf->state == UVC_BUF_STATE_DONE ||
!(video->req_int_count %
--
2.35.1