annotate poll_table_struct ->_key

Only POLL... bitmaps ever end up there and their only use is checking
for POLL... bits in them.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

drivers/dma-buf/dma-buf.c

@@ -163,7 +163,7 @@ static unsigned int dma_buf_poll(struct file *file, poll_table *poll)
 	struct reservation_object *resv;
 	struct reservation_object_list *fobj;
 	struct dma_fence *fence_excl;
-	unsigned long events;
+	__poll_t events;
 	unsigned shared_count, seq;
 
 	dmabuf = file->private_data;

drivers/media/pci/bt8xx/bttv-driver.c

@@ -2961,7 +2961,7 @@ static unsigned int bttv_poll(struct file *file, poll_table *wait)
 	struct bttv_buffer *buf;
 	enum v4l2_field field;
 	unsigned int rc = 0;
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 
 	if (v4l2_event_pending(&fh->fh))
 		rc = POLLPRI;
@@ -3333,7 +3333,7 @@ static unsigned int radio_poll(struct file *file, poll_table *wait)
 {
 	struct bttv_fh *fh = file->private_data;
 	struct bttv *btv = fh->btv;
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct saa6588_command cmd;
 	unsigned int res = 0;
 

drivers/media/pci/cx18/cx18-fileops.c

@@ -604,7 +604,7 @@ ssize_t cx18_v4l2_read(struct file *filp, char __user *buf, size_t count,
 
 unsigned int cx18_v4l2_enc_poll(struct file *filp, poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct cx18_open_id *id = file2id(filp);
 	struct cx18 *cx = id->cx;
 	struct cx18_stream *s = &cx->streams[id->type];

drivers/media/pci/ivtv/ivtv-fileops.c

@@ -766,7 +766,7 @@ unsigned int ivtv_v4l2_dec_poll(struct file *filp, poll_table *wait)
 
 unsigned int ivtv_v4l2_enc_poll(struct file *filp, poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct ivtv_open_id *id = fh2id(filp->private_data);
 	struct ivtv *itv = id->itv;
 	struct ivtv_stream *s = &itv->streams[id->type];

drivers/media/pci/saa7164/saa7164-encoder.c

@@ -911,7 +911,7 @@ err:
 
 static unsigned int fops_poll(struct file *file, poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct saa7164_encoder_fh *fh =
 		(struct saa7164_encoder_fh *)file->private_data;
 	struct saa7164_port *port = fh->port;

drivers/media/platform/fsl-viu.c

@@ -1268,7 +1268,7 @@ static unsigned int viu_poll(struct file *file, struct poll_table_struct *wait)
 	struct viu_fh *fh = file->private_data;
 	struct videobuf_queue *q = &fh->vb_vidq;
 	struct viu_dev *dev = fh->dev;
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	unsigned int res = v4l2_ctrl_poll(file, wait);
 
 	if (V4L2_BUF_TYPE_VIDEO_CAPTURE != fh->type)

drivers/media/radio/radio-cadet.c

@@ -484,7 +484,7 @@ static int cadet_release(struct file *file)
 static unsigned int cadet_poll(struct file *file, struct poll_table_struct *wait)
 {
 	struct cadet *dev = video_drvdata(file);
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	unsigned int res = v4l2_ctrl_poll(file, wait);
 
 	poll_wait(file, &dev->read_queue, wait);

drivers/media/radio/radio-si476x.c

@@ -1153,7 +1153,7 @@ static unsigned int si476x_radio_fops_poll(struct file *file,
 				struct poll_table_struct *pts)
 {
 	struct si476x_radio *radio = video_drvdata(file);
-	unsigned long req_events = poll_requested_events(pts);
+	__poll_t req_events = poll_requested_events(pts);
 	unsigned int err = v4l2_ctrl_poll(file, pts);
 
 	if (req_events & (POLLIN | POLLRDNORM)) {

drivers/media/radio/si470x/radio-si470x-common.c

@@ -511,7 +511,7 @@ static unsigned int si470x_fops_poll(struct file *file,
 		struct poll_table_struct *pts)
 {
 	struct si470x_device *radio = video_drvdata(file);
-	unsigned long req_events = poll_requested_events(pts);
+	__poll_t req_events = poll_requested_events(pts);
 	int retval = v4l2_ctrl_poll(file, pts);
 
 	if (req_events & (POLLIN | POLLRDNORM)) {

drivers/media/usb/cx231xx/cx231xx-417.c

@@ -1815,7 +1815,7 @@ static ssize_t mpeg_read(struct file *file, char __user *data,
 static unsigned int mpeg_poll(struct file *file,
 	struct poll_table_struct *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct cx231xx_fh *fh = file->private_data;
 	struct cx231xx *dev = fh->dev;
 	unsigned int res = 0;

drivers/media/usb/cx231xx/cx231xx-video.c

@@ -2008,7 +2008,7 @@ cx231xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
  */
 static unsigned int cx231xx_v4l2_poll(struct file *filp, poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct cx231xx_fh *fh = filp->private_data;
 	struct cx231xx *dev = fh->dev;
 	unsigned res = 0;

drivers/media/usb/gspca/gspca.c

@@ -1865,7 +1865,7 @@ out:
 static unsigned int dev_poll(struct file *file, poll_table *wait)
 {
 	struct gspca_dev *gspca_dev = video_drvdata(file);
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	int ret = 0;
 
 	PDEBUG(D_FRAM, "poll");

drivers/media/usb/hdpvr/hdpvr-video.c

@@ -523,7 +523,7 @@ err:
 
 static unsigned int hdpvr_poll(struct file *filp, poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct hdpvr_buffer *buf = NULL;
 	struct hdpvr_device *dev = video_drvdata(filp);
 	unsigned int mask = v4l2_ctrl_poll(filp, wait);

drivers/media/usb/tm6000/tm6000-video.c

@@ -1426,7 +1426,7 @@ tm6000_read(struct file *file, char __user *data, size_t count, loff_t *pos)
 static unsigned int
 __tm6000_poll(struct file *file, struct poll_table_struct *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct tm6000_fh        *fh = file->private_data;
 	struct tm6000_buffer    *buf;
 	int res = 0;

drivers/media/v4l2-core/v4l2-mem2mem.c

@@ -502,7 +502,7 @@ unsigned int v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 			   struct poll_table_struct *wait)
 {
 	struct video_device *vfd = video_devdata(file);
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct vb2_queue *src_q, *dst_q;
 	struct vb2_buffer *src_vb = NULL, *dst_vb = NULL;
 	unsigned int rc = 0;

drivers/media/v4l2-core/videobuf-core.c

@@ -1122,7 +1122,7 @@ unsigned int videobuf_poll_stream(struct file *file,
 				  struct videobuf_queue *q,
 				  poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct videobuf_buffer *buf = NULL;
 	unsigned int rc = 0;
 

drivers/media/v4l2-core/videobuf2-core.c

@@ -2021,7 +2021,7 @@ EXPORT_SYMBOL_GPL(vb2_core_queue_release);
 unsigned int vb2_core_poll(struct vb2_queue *q, struct file *file,
 		poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct vb2_buffer *vb = NULL;
 	unsigned long flags;
 

drivers/media/v4l2-core/videobuf2-v4l2.c

@@ -674,7 +674,7 @@ EXPORT_SYMBOL_GPL(vb2_queue_release);
 unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait)
 {
 	struct video_device *vfd = video_devdata(file);
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	unsigned int res = 0;
 
 	if (test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags)) {

drivers/misc/mei/main.c

@@ -544,7 +544,7 @@ static long mei_compat_ioctl(struct file *file,
  */
 static unsigned int mei_poll(struct file *file, poll_table *wait)
 {
-	unsigned long req_events = poll_requested_events(wait);
+	__poll_t req_events = poll_requested_events(wait);
 	struct mei_cl *cl = file->private_data;
 	struct mei_device *dev;
 	unsigned int mask = 0;

fs/select.c

@@ -438,7 +438,7 @@ get_max:
 
 static inline void wait_key_set(poll_table *wait, unsigned long in,
 				unsigned long out, unsigned long bit,
-				unsigned int ll_flag)
+				__poll_t ll_flag)
 {
 	wait->_key = POLLEX_SET | ll_flag;
 	if (in & bit)
@@ -454,7 +454,7 @@ static int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time)
 	poll_table *wait;
 	int retval, i, timed_out = 0;
 	u64 slack = 0;
-	unsigned int busy_flag = net_busy_loop_on() ? POLL_BUSY_LOOP : 0;
+	__poll_t busy_flag = net_busy_loop_on() ? POLL_BUSY_LOOP : 0;
 	unsigned long busy_start = 0;
 
 	rcu_read_lock();

include/linux/poll.h

@@ -37,7 +37,7 @@ typedef void (*poll_queue_proc)(struct file *, wait_queue_head_t *, struct poll_
  */
 typedef struct poll_table_struct {
 	poll_queue_proc _qproc;
-	unsigned long _key;
+	__poll_t _key;
 } poll_table;
 
 static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p)
@@ -62,15 +62,15 @@ static inline bool poll_does_not_wait(const poll_table *p)
  * to be started implicitly on poll(). You typically only want to do that
  * if the application is actually polling for POLLIN and/or POLLOUT.
  */
-static inline unsigned long poll_requested_events(const poll_table *p)
+static inline __poll_t poll_requested_events(const poll_table *p)
 {
-	return p ? p->_key : ~0UL;
+	return p ? p->_key : ~(__poll_t)0;
 }
 
 static inline void init_poll_funcptr(poll_table *pt, poll_queue_proc qproc)
 {
 	pt->_qproc = qproc;
-	pt->_key   = ~0UL; /* all events enabled */
+	pt->_key   = ~(__poll_t)0; /* all events enabled */
 }
 
 struct poll_table_entry {