staging: comedi: pcl816: remove forward declaration

Move check_channel_list() to remove the need for the forward declaration.
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/pcl816.c

@@ -130,10 +130,6 @@ struct pcl816_private {
 	unsigned int ai_cmd_canceled:1;
 };
 
-static int check_channel_list(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      unsigned int *chanlist, unsigned int chanlen);
-
 static void pcl816_start_pacer(struct comedi_device *dev, bool load_counters)
 {
 	struct pcl816_private *devpriv = dev->private;
@@ -363,6 +359,62 @@ static irqreturn_t pcl816_interrupt(int irq, void *d)
 	return IRQ_HANDLED;
 }
 
+static int check_channel_list(struct comedi_device *dev,
+			      struct comedi_subdevice *s,
+			      unsigned int *chanlist,
+			      unsigned int chanlen)
+{
+	unsigned int chansegment[16];
+	unsigned int i, nowmustbechan, seglen, segpos;
+
+	/*  correct channel and range number check itself comedi/range.c */
+	if (chanlen < 1) {
+		dev_err(dev->class_dev, "range/channel list is empty!\n");
+		return 0;
+	}
+
+	if (chanlen > 1) {
+		/*  first channel is every time ok */
+		chansegment[0] = chanlist[0];
+		for (i = 1, seglen = 1; i < chanlen; i++, seglen++) {
+			/*  we detect loop, this must by finish */
+			    if (chanlist[0] == chanlist[i])
+				break;
+			nowmustbechan =
+			    (CR_CHAN(chansegment[i - 1]) + 1) % chanlen;
+			if (nowmustbechan != CR_CHAN(chanlist[i])) {
+				/*  channel list isn't continuous :-( */
+				dev_dbg(dev->class_dev,
+					"channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
+					i, CR_CHAN(chanlist[i]), nowmustbechan,
+					CR_CHAN(chanlist[0]));
+				return 0;
+			}
+			/*  well, this is next correct channel in list */
+			chansegment[i] = chanlist[i];
+		}
+
+		/*  check whole chanlist */
+		for (i = 0, segpos = 0; i < chanlen; i++) {
+			    if (chanlist[i] != chansegment[i % seglen]) {
+				dev_dbg(dev->class_dev,
+					"bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
+					i, CR_CHAN(chansegment[i]),
+					CR_RANGE(chansegment[i]),
+					CR_AREF(chansegment[i]),
+					CR_CHAN(chanlist[i % seglen]),
+					CR_RANGE(chanlist[i % seglen]),
+					CR_AREF(chansegment[i % seglen]));
+				return 0;	/*  chan/gain list is strange */
+			}
+		}
+	} else {
+		seglen = 1;
+	}
+
+	return seglen;	/*  we can serve this with MUX logic */
+}
+
 static int pcl816_ai_cmdtest(struct comedi_device *dev,
 			     struct comedi_subdevice *s, struct comedi_cmd *cmd)
 {
@@ -542,62 +594,6 @@ static int pcl816_ai_cancel(struct comedi_device *dev,
 	return 0;
 }
 
-static int
-check_channel_list(struct comedi_device *dev,
-		   struct comedi_subdevice *s, unsigned int *chanlist,
-		   unsigned int chanlen)
-{
-	unsigned int chansegment[16];
-	unsigned int i, nowmustbechan, seglen, segpos;
-
-	/*  correct channel and range number check itself comedi/range.c */
-	if (chanlen < 1) {
-		dev_err(dev->class_dev, "range/channel list is empty!\n");
-		return 0;
-	}
-
-	if (chanlen > 1) {
-		/*  first channel is every time ok */
-		chansegment[0] = chanlist[0];
-		for (i = 1, seglen = 1; i < chanlen; i++, seglen++) {
-			/*  we detect loop, this must by finish */
-			    if (chanlist[0] == chanlist[i])
-				break;
-			nowmustbechan =
-			    (CR_CHAN(chansegment[i - 1]) + 1) % chanlen;
-			if (nowmustbechan != CR_CHAN(chanlist[i])) {
-				/*  channel list isn't continuous :-( */
-				dev_dbg(dev->class_dev,
-					"channel list must be continuous! chanlist[%i]=%d but must be %d or %d!\n",
-					i, CR_CHAN(chanlist[i]), nowmustbechan,
-					CR_CHAN(chanlist[0]));
-				return 0;
-			}
-			/*  well, this is next correct channel in list */
-			chansegment[i] = chanlist[i];
-		}
-
-		/*  check whole chanlist */
-		for (i = 0, segpos = 0; i < chanlen; i++) {
-			    if (chanlist[i] != chansegment[i % seglen]) {
-				dev_dbg(dev->class_dev,
-					"bad channel or range number! chanlist[%i]=%d,%d,%d and not %d,%d,%d!\n",
-					i, CR_CHAN(chansegment[i]),
-					CR_RANGE(chansegment[i]),
-					CR_AREF(chansegment[i]),
-					CR_CHAN(chanlist[i % seglen]),
-					CR_RANGE(chanlist[i % seglen]),
-					CR_AREF(chansegment[i % seglen]));
-				return 0;	/*  chan/gain list is strange */
-			}
-		}
-	} else {
-		seglen = 1;
-	}
-
-	return seglen;	/*  we can serve this with MUX logic */
-}
-
 static int pcl816_ai_insn_read(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn,