staging: comedi: remove use of 'bytes_per_sample()'

This inline helper function has been replaced with comedi_bytes_per_sample().
The same commit (bf33eb4b4f57) introduced a couple other related helper
functions a manipulate the sample size.

Use the new helper functions to remove the use of 'bytes_per_sample()' and
remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedi_buf.c

@@ -283,7 +283,7 @@ static unsigned int comedi_buf_munge(struct comedi_subdevice *s,
 {
 	struct comedi_async *async = s->async;
 	unsigned int count = 0;
-	const unsigned num_sample_bytes = bytes_per_sample(s);
+	const unsigned num_sample_bytes = comedi_bytes_per_sample(s);
 
 	if (!s->munge || (async->cmd.flags & CMDF_RAWDATA)) {
 		async->munge_count += num_bytes;
@@ -489,7 +489,8 @@ unsigned int comedi_buf_write_samples(struct comedi_subdevice *s,
 	 * If not, clamp the nsamples to the number that will fit, flag the
 	 * buffer overrun and add the samples that fit.
 	 */
-	max_samples = comedi_buf_write_n_available(s) / bytes_per_sample(s);
+	max_samples = comedi_bytes_to_samples(s,
+					      comedi_buf_write_n_available(s));
 	if (nsamples > max_samples) {
 		dev_warn(s->device->class_dev, "buffer overrun\n");
 		s->async->events |= COMEDI_CB_OVERFLOW;
@@ -499,7 +500,8 @@ unsigned int comedi_buf_write_samples(struct comedi_subdevice *s,
 	if (nsamples == 0)
 		return 0;
 
-	nbytes = comedi_buf_write_alloc(s, nsamples * bytes_per_sample(s));
+	nbytes = comedi_buf_write_alloc(s,
+					comedi_samples_to_bytes(s, nsamples));
 	comedi_buf_memcpy_to(s, data, nbytes);
 	comedi_buf_write_free(s, nbytes);
 	comedi_inc_scan_progress(s, nbytes);
@@ -527,14 +529,16 @@ unsigned int comedi_buf_read_samples(struct comedi_subdevice *s,
 	unsigned int nbytes;
 
 	/* clamp nsamples to the number of full samples available */
-	max_samples = comedi_buf_read_n_available(s) / bytes_per_sample(s);
+	max_samples = comedi_bytes_to_samples(s,
+					      comedi_buf_read_n_available(s));
 	if (nsamples > max_samples)
 		nsamples = max_samples;
 
 	if (nsamples == 0)
 		return 0;
 
-	nbytes = comedi_buf_read_alloc(s, nsamples * bytes_per_sample(s));
+	nbytes = comedi_buf_read_alloc(s,
+				       comedi_samples_to_bytes(s, nsamples));
 	comedi_buf_memcpy_from(s, data, nbytes);
 	comedi_buf_read_free(s, nbytes);
 	comedi_inc_scan_progress(s, nbytes);

drivers/staging/comedi/comedi_fops.c

@@ -2024,7 +2024,7 @@ static unsigned int comedi_poll(struct file *file, poll_table *wait)
 
 	s = comedi_write_subdevice(dev, minor);
 	if (s && s->async) {
-		unsigned int bps = bytes_per_sample(s);
+		unsigned int bps = comedi_bytes_per_sample(s);
 
 		poll_wait(file, &s->async->wait_head, wait);
 		comedi_buf_write_alloc(s, s->async->prealloc_bufsz);

drivers/staging/comedi/comedidev.h

@@ -427,12 +427,6 @@ static inline unsigned int comedi_bytes_per_sample(struct comedi_subdevice *s)
 	return s->subdev_flags & SDF_LSAMPL ? sizeof(int) : sizeof(short);
 }
 
-/* to be removed */
-static inline unsigned int bytes_per_sample(struct comedi_subdevice *s)
-{
-	return comedi_bytes_per_sample(s);
-}
-
 /**
  * comedi_sample_shift - determine log2 of subdevice sample size
  * @s:		comedi_subdevice struct

drivers/staging/comedi/drivers.c

@@ -316,14 +316,14 @@ unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s)
 	case COMEDI_SUBD_DI:
 	case COMEDI_SUBD_DO:
 	case COMEDI_SUBD_DIO:
-		bits_per_sample = 8 * bytes_per_sample(s);
+		bits_per_sample = 8 * comedi_bytes_per_sample(s);
 		num_samples = DIV_ROUND_UP(cmd->chanlist_len, bits_per_sample);
 		break;
 	default:
 		num_samples = cmd->chanlist_len;
 		break;
 	}
-	return num_samples * bytes_per_sample(s);
+	return comedi_samples_to_bytes(s, num_samples);
 }
 EXPORT_SYMBOL_GPL(comedi_bytes_per_scan);
 

drivers/staging/comedi/drivers/cb_pcidas.c

@@ -1146,7 +1146,7 @@ static void cb_pcidas_ao_load_fifo(struct comedi_device *dev,
 		nsamples = devpriv->ao_count;
 
 	nbytes = comedi_buf_read_samples(s, devpriv->ao_buffer, nsamples);
-	nsamples = nbytes / bytes_per_sample(s);
+	nsamples = comedi_bytes_to_samples(s, nbytes);
 	if (cmd->stop_src == TRIG_COUNT)
 		devpriv->ao_count -= nsamples;
 

drivers/staging/comedi/drivers/cb_pcidas64.c

@@ -2923,14 +2923,14 @@ static unsigned int cb_pcidas64_ao_fill_buffer(struct comedi_device *dev,
 {
 	struct pcidas64_private *devpriv = dev->private;
 	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int nsamples = max_bytes / bytes_per_sample(s);
+	unsigned int nsamples = comedi_bytes_to_samples(s, max_bytes);
 	unsigned int actual_bytes;
 
 	if (cmd->stop_src == TRIG_COUNT && devpriv->ao_count < nsamples)
 		nsamples = devpriv->ao_count;
 
 	actual_bytes = comedi_buf_read_samples(s, dest, nsamples);
-	nsamples = actual_bytes / bytes_per_sample(s);
+	nsamples = comedi_bytes_to_samples(s, actual_bytes);
 	if (cmd->stop_src == TRIG_COUNT)
 		devpriv->ao_count -= nsamples;
 
@@ -2954,7 +2954,7 @@ static unsigned int load_ao_dma_buffer(struct comedi_device *dev,
 	if (nsamples == 0)
 		return 0;
 
-	nbytes = nsamples * bytes_per_sample(s);
+	nbytes = comedi_samples_to_bytes(s, nsamples);
 	devpriv->ao_dma_desc[buffer_index].transfer_size = cpu_to_le32(nbytes);
 	/* set end of chain bit so we catch underruns */
 	next_bits = le32_to_cpu(devpriv->ao_dma_desc[buffer_index].next);

drivers/staging/comedi/drivers/das16.c

@@ -584,7 +584,7 @@ static void das16_interrupt(struct comedi_device *dev)
 
 	spin_unlock_irqrestore(&dev->spinlock, spin_flags);
 
-	nsamples = num_bytes / bytes_per_sample(s);
+	nsamples = comedi_bytes_to_samples(s, num_bytes);
 	comedi_buf_write_samples(s, devpriv->dma_buffer[buffer_index],
 				 nsamples);
 

drivers/staging/comedi/drivers/dt282x.c

@@ -455,7 +455,7 @@ static unsigned int dt282x_ao_setup_dma(struct comedi_device *dev,
 {
 	struct dt282x_private *devpriv = dev->private;
 	void *ptr = devpriv->dma[cur_dma].buf;
-	unsigned int nsamples = devpriv->dma_maxsize / bytes_per_sample(s);
+	unsigned int nsamples = comedi_bytes_to_samples(s, devpriv->dma_maxsize);
 	unsigned int nbytes;
 
 	nbytes = comedi_buf_read_samples(s, ptr, nsamples);
@@ -491,7 +491,7 @@ static void dt282x_ai_dma_interrupt(struct comedi_device *dev,
 	int cur_dma = devpriv->current_dma_index;
 	void *ptr = devpriv->dma[cur_dma].buf;
 	int size = devpriv->dma[cur_dma].size;
-	unsigned int nsamples = size / bytes_per_sample(s);
+	unsigned int nsamples = comedi_bytes_to_samples(s, size);
 	int ret;
 
 	outw(devpriv->supcsr | DT2821_SUPCSR_CLRDMADNE,

drivers/staging/comedi/drivers/ni_mio_common.c

@@ -1618,12 +1618,12 @@ static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 	struct ni_private *devpriv = dev->private;
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
-	unsigned int length = num_bytes / bytes_per_sample(s);
+	unsigned int nsamples = comedi_bytes_to_samples(s, num_bytes);
 	unsigned short *array = data;
 	unsigned int *larray = data;
 	unsigned int i;
 
-	for (i = 0; i < length; i++) {
+	for (i = 0; i < nsamples; i++) {
 #ifdef PCIDMA
 		if (s->subdev_flags & SDF_LSAMPL)
 			larray[i] = le32_to_cpu(larray[i]);
@@ -2732,11 +2732,11 @@ static void ni_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 			unsigned int chan_index)
 {
 	struct comedi_cmd *cmd = &s->async->cmd;
-	unsigned int length = num_bytes / bytes_per_sample(s);
+	unsigned int nsamples = comedi_bytes_to_samples(s, num_bytes);
 	unsigned short *array = data;
 	unsigned int i;
 
-	for (i = 0; i < length; i++) {
+	for (i = 0; i < nsamples; i++) {
 		unsigned int range = CR_RANGE(cmd->chanlist[chan_index]);
 		unsigned short val = array[i];
 

drivers/staging/comedi/drivers/usbduxfast.c

@@ -248,9 +248,9 @@ static void usbduxfast_ai_handle_urb(struct comedi_device *dev,
 	if (devpriv->ignore) {
 		devpriv->ignore--;
 	} else {
-		unsigned int nbytes = urb->actual_length;
-		unsigned int nsamples = nbytes / bytes_per_sample(s);
+		unsigned int nsamples;
 
+		nsamples = comedi_bytes_to_samples(s, urb->actual_length);
 		if (cmd->stop_src == TRIG_COUNT) {
 			if (devpriv->ai_sample_count < nsamples) {
 				nsamples = devpriv->ai_sample_count;