V4L/DVB (10772): siano: prevent duplicate variable declaration

Fix the following build error:

drivers/media/dvb/siano/smsusb.o: In function `get_order':
include/asm-generic/page.h:10: multiple definition of `sms_dbg'
drivers/media/dvb/siano/sms1xxx.o:include/asm-generic/page.h:10: first defined here
drivers/media/dvb/siano/smsdvb.o: In function `get_order':
include/asm-generic/page.h:10: multiple definition of `sms_dbg'
drivers/media/dvb/siano/sms1xxx.o:include/asm-generic/page.h:10: first defined here

Thanks to Mauro Carvalho Chehab for his original patch to address this issue.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/dvb/siano/sms-cards.c

@@ -19,6 +19,10 @@
 
 #include "sms-cards.h"
 
+static int sms_dbg;
+module_param_named(cards_dbg, sms_dbg, int, 0644);
+MODULE_PARM_DESC(cards_dbg, "set debug level (info=1, adv=2 (or-able))");
+
 static struct sms_board sms_boards[] = {
 	[SMS_BOARD_UNKNOWN] = {
 		.name	= "Unknown board",

drivers/media/dvb/siano/smscoreapi.c

@@ -34,7 +34,7 @@
 #include "smscoreapi.h"
 #include "sms-cards.h"
 
-int sms_dbg;
+static int sms_dbg;
 module_param_named(debug, sms_dbg, int, 0644);
 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
 

drivers/media/dvb/siano/smscoreapi.h

@@ -422,8 +422,6 @@ int smscore_led_state(struct smscore_device_t *core, int led);
 
 /* ------------------------------------------------------------------------ */
 
-extern int sms_dbg;
-
 #define DBG_INFO 1
 #define DBG_ADV  2
 

drivers/media/dvb/siano/smsdvb.c

@@ -50,6 +50,10 @@ struct smsdvb_client_t {
 static struct list_head g_smsdvb_clients;
 static struct mutex g_smsdvb_clientslock;
 
+static int sms_dbg;
+module_param_named(debug, sms_dbg, int, 0644);
+MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
+
 static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
 {
 	struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;

drivers/media/dvb/siano/smsusb.c

@@ -27,6 +27,10 @@
 #include "smscoreapi.h"
 #include "sms-cards.h"
 
+static int sms_dbg;
+module_param_named(debug, sms_dbg, int, 0644);
+MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
+
 #define USB1_BUFFER_SIZE		0x1000
 #define USB2_BUFFER_SIZE		0x4000