staging: comedi: mite: rename 'struct mite_dma_descriptor_ring'

Rename this name to 'mite_ring' to help shorten the long lines.

In the ni_660x driver, also shorten the private data member 'mite_rings'
to simply 'ring'.
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/drivers/mite.c

@@ -355,11 +355,11 @@ void mite_detach(struct mite *mite)
 }
 EXPORT_SYMBOL_GPL(mite_detach);
 
-struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *mite)
+struct mite_ring *mite_alloc_ring(struct mite *mite)
 {
-	struct mite_dma_descriptor_ring *ring =
-	    kmalloc(sizeof(struct mite_dma_descriptor_ring), GFP_KERNEL);
+	struct mite_ring *ring;
 
+	ring = kmalloc(sizeof(*ring), GFP_KERNEL);
 	if (!ring)
 		return NULL;
 	ring->hw_dev = get_device(&mite->pcidev->dev);
@@ -374,7 +374,7 @@ struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *mite)
 };
 EXPORT_SYMBOL_GPL(mite_alloc_ring);
 
-void mite_free_ring(struct mite_dma_descriptor_ring *ring)
+void mite_free_ring(struct mite_ring *ring)
 {
 	if (ring) {
 		if (ring->descriptors) {
@@ -390,11 +390,10 @@ void mite_free_ring(struct mite_dma_descriptor_ring *ring)
 };
 EXPORT_SYMBOL_GPL(mite_free_ring);
 
-struct mite_channel *
-mite_request_channel_in_range(struct mite *mite,
-			      struct mite_dma_descriptor_ring *ring,
-			      unsigned int min_channel,
-			      unsigned int max_channel)
+struct mite_channel *mite_request_channel_in_range(struct mite *mite,
+						   struct mite_ring *ring,
+						   unsigned int min_channel,
+						   unsigned int max_channel)
 {
 	int i;
 	unsigned long flags;
@@ -468,7 +467,7 @@ EXPORT_SYMBOL_GPL(mite_dma_arm);
 
 /**************************************/
 
-int mite_buf_change(struct mite_dma_descriptor_ring *ring,
+int mite_buf_change(struct mite_ring *ring,
 		    struct comedi_subdevice *s)
 {
 	struct comedi_async *async = s->async;
@@ -512,7 +511,7 @@ EXPORT_SYMBOL_GPL(mite_buf_change);
  * DMA data buffer.  A command may call this function later to re-initialize and
  * shorten the amount of memory that will be transferred.
  */
-int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring,
+int mite_init_ring_descriptors(struct mite_ring *ring,
 			       struct comedi_subdevice *s,
 			       unsigned int nbytes)
 {

drivers/staging/comedi/drivers/mite.h

@@ -35,7 +35,7 @@ struct mite_dma_desc {
 	u32 dar;
 };
 
-struct mite_dma_descriptor_ring {
+struct mite_ring {
 	struct device *hw_dev;
 	unsigned int n_links;
 	struct mite_dma_desc *descriptors;
@@ -47,7 +47,7 @@ struct mite_channel {
 	unsigned int channel;
 	int dir;
 	int done;
-	struct mite_dma_descriptor_ring *ring;
+	struct mite_ring *ring;
 };
 
 struct mite {
@@ -72,16 +72,15 @@ static inline int mite_setup(struct comedi_device *dev,
 }
 
 void mite_detach(struct mite *);
-struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite *);
-void mite_free_ring(struct mite_dma_descriptor_ring *ring);
-struct mite_channel *
-mite_request_channel_in_range(struct mite *,
-			      struct mite_dma_descriptor_ring *ring,
-			      unsigned int min_channel,
-			      unsigned int max_channel);
-static inline struct mite_channel *
-mite_request_channel(struct mite *mite,
-		     struct mite_dma_descriptor_ring *ring)
+struct mite_ring *mite_alloc_ring(struct mite *);
+void mite_free_ring(struct mite_ring *ring);
+struct mite_channel *mite_request_channel_in_range(struct mite *,
+						   struct mite_ring *,
+						   unsigned int min_channel,
+						   unsigned int max_channel);
+
+static inline struct mite_channel *mite_request_channel(struct mite *mite,
+							struct mite_ring *ring)
 {
 	return mite_request_channel_in_range(mite, ring, 0,
 					     mite->num_channels - 1);
@@ -99,10 +98,8 @@ int mite_done(struct mite_channel *mite_chan);
 
 void mite_prep_dma(struct mite_channel *mite_chan,
 		   unsigned int num_device_bits, unsigned int num_memory_bits);
-int mite_buf_change(struct mite_dma_descriptor_ring *ring,
-		    struct comedi_subdevice *s);
-int mite_init_ring_descriptors(struct mite_dma_descriptor_ring *ring,
-			       struct comedi_subdevice *s,
+int mite_buf_change(struct mite_ring *, struct comedi_subdevice *);
+int mite_init_ring_descriptors(struct mite_ring *, struct comedi_subdevice *,
 			       unsigned int nbytes);
 
 /*

drivers/staging/comedi/drivers/ni_660x.c

@@ -255,8 +255,7 @@ static const struct ni_660x_board ni_660x_boards[] = {
 struct ni_660x_private {
 	struct mite *mite;
 	struct ni_gpct_device *counter_dev;
-	struct mite_dma_descriptor_ring
-	*mite_rings[NI660X_MAX_CHIPS][NI660X_COUNTERS_PER_CHIP];
+	struct mite_ring *ring[NI660X_MAX_CHIPS][NI660X_COUNTERS_PER_CHIP];
 	/* protects mite channel request/release */
 	spinlock_t mite_channel_lock;
 	/* prevents races between interrupt and comedi_poll */
@@ -339,12 +338,12 @@ static int ni_660x_request_mite_channel(struct comedi_device *dev,
 					enum comedi_io_direction direction)
 {
 	struct ni_660x_private *devpriv = dev->private;
-	struct mite_dma_descriptor_ring *ring;
+	struct mite_ring *ring;
 	struct mite_channel *mite_chan;
 	unsigned long flags;
 
 	spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
-	ring = devpriv->mite_rings[counter->chip_index][counter->counter_index];
+	ring = devpriv->ring[counter->chip_index][counter->counter_index];
 	mite_chan = mite_request_channel(devpriv->mite, ring);
 	if (!mite_chan) {
 		spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
@@ -470,10 +469,10 @@ static int ni_660x_buf_change(struct comedi_device *dev,
 {
 	struct ni_660x_private *devpriv = dev->private;
 	struct ni_gpct *counter = s->private;
-	struct mite_dma_descriptor_ring *ring;
+	struct mite_ring *ring;
 	int ret;
 
-	ring = devpriv->mite_rings[counter->chip_index][counter->counter_index];
+	ring = devpriv->ring[counter->chip_index][counter->counter_index];
 	ret = mite_buf_change(ring, s);
 	if (ret < 0)
 		return ret;
@@ -507,9 +506,8 @@ static int ni_660x_alloc_mite_rings(struct comedi_device *dev)
 
 	for (i = 0; i < board->n_chips; ++i) {
 		for (j = 0; j < NI660X_COUNTERS_PER_CHIP; ++j) {
-			devpriv->mite_rings[i][j] =
-			    mite_alloc_ring(devpriv->mite);
-			if (!devpriv->mite_rings[i][j])
+			devpriv->ring[i][j] = mite_alloc_ring(devpriv->mite);
+			if (!devpriv->ring[i][j])
 				return -ENOMEM;
 		}
 	}
@@ -525,7 +523,7 @@ static void ni_660x_free_mite_rings(struct comedi_device *dev)
 
 	for (i = 0; i < board->n_chips; ++i) {
 		for (j = 0; j < NI660X_COUNTERS_PER_CHIP; ++j)
-			mite_free_ring(devpriv->mite_rings[i][j]);
+			mite_free_ring(devpriv->ring[i][j]);
 	}
 }
 

drivers/staging/comedi/drivers/ni_mio_common.c

@@ -1961,7 +1961,7 @@ static unsigned int ni_timer_to_ns(const struct comedi_device *dev, int timer)
 	return devpriv->clock_ns * (timer + 1);
 }
 
-static void ni_cmd_set_mite_transfer(struct mite_dma_descriptor_ring *ring,
+static void ni_cmd_set_mite_transfer(struct mite_ring *ring,
 				     struct comedi_subdevice *sdev,
 				     const struct comedi_cmd *cmd,
 				     unsigned int max_count) {

drivers/staging/comedi/drivers/ni_pcidio.c

@@ -289,7 +289,7 @@ struct nidio96_private {
 	int dio;
 	unsigned short OpModeBits;
 	struct mite_channel *di_mite_chan;
-	struct mite_dma_descriptor_ring *di_mite_ring;
+	struct mite_ring *di_mite_ring;
 	spinlock_t mite_channel_lock;
 };
 

drivers/staging/comedi/drivers/ni_stc.h

@@ -1037,10 +1037,10 @@ struct ni_private {
 	struct mite_channel *ai_mite_chan;
 	struct mite_channel *ao_mite_chan;
 	struct mite_channel *cdo_mite_chan;
-	struct mite_dma_descriptor_ring *ai_mite_ring;
-	struct mite_dma_descriptor_ring *ao_mite_ring;
-	struct mite_dma_descriptor_ring *cdo_mite_ring;
-	struct mite_dma_descriptor_ring *gpct_mite_ring[NUM_GPCT];
+	struct mite_ring *ai_mite_ring;
+	struct mite_ring *ao_mite_ring;
+	struct mite_ring *cdo_mite_ring;
+	struct mite_ring *gpct_mite_ring[NUM_GPCT];
 
 	/* ni_pcimio board type flags (based on the boardinfo reg_type) */
 	unsigned int is_m_series:1;