V4L/DVB (8906): v4l-dvb: fix assorted sparse warnings

Fix sparse warnings. None are serious, but cutting down on these helps find
future serious sparse warnings/errors.

Redid the av7710.c patch based on a suggestion by Oliver Endriss.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

3 files changed, 11 insertions, 16 deletions

diff --git a/drivers/media/dvb/dvb-usb/af9005-remote.c b/drivers/media/dvb/dvb-usb/af9005-remote.c
index ff00c0e8f4a..7c596f92676 100644
--- a/drivers/media/dvb/dvb-usb/af9005-remote.c
+++ b/drivers/media/dvb/dvb-usb/af9005-remote.c
@@ -25,7 +25,7 @@
  */
 #include "af9005.h"
 /* debug */
-int dvb_usb_af9005_remote_debug;
+static int dvb_usb_af9005_remote_debug;
 module_param_named(debug, dvb_usb_af9005_remote_debug, int, 0644);
 MODULE_PARM_DESC(debug,
 		 "enable (1) or disable (0) debug messages."
diff --git a/drivers/media/dvb/dvb-usb/af9005-script.h b/drivers/media/dvb/dvb-usb/af9005-script.h
index 6eeaae51b1c..4d69045426d 100644
--- a/drivers/media/dvb/dvb-usb/af9005-script.h
+++ b/drivers/media/dvb/dvb-usb/af9005-script.h
@@ -14,7 +14,7 @@ typedef struct {
 	u8 val;
 } RegDesc;
 
-RegDesc script[] = {
+static RegDesc script[] = {
 	{0xa180, 0x0, 0x8, 0xa},
 	{0xa181, 0x0, 0x8, 0xd7},
 	{0xa182, 0x0, 0x8, 0xa3},
diff --git a/drivers/media/dvb/dvb-usb/af9005.c b/drivers/media/dvb/dvb-usb/af9005.c
index cfe71feefca..ca5a0a4d2a4 100644
--- a/drivers/media/dvb/dvb-usb/af9005.c
+++ b/drivers/media/dvb/dvb-usb/af9005.c
@@ -35,17 +35,17 @@ module_param_named(led, dvb_usb_af9005_led, bool, 0644);
 MODULE_PARM_DESC(led, "enable led (default: 1).");
 
 /* eeprom dump */
-int dvb_usb_af9005_dump_eeprom = 0;
+static int dvb_usb_af9005_dump_eeprom;
 module_param_named(dump_eeprom, dvb_usb_af9005_dump_eeprom, int, 0);
 MODULE_PARM_DESC(dump_eeprom, "dump contents of the eeprom.");
 
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
 /* remote control decoder */
-int (*rc_decode) (struct dvb_usb_device * d, u8 * data, int len, u32 * event,
-		  int *state);
-void *rc_keys;
-int *rc_keys_size;
+static int (*rc_decode) (struct dvb_usb_device *d, u8 *data, int len,
+		u32 *event, int *state);
+static void *rc_keys;
+static int *rc_keys_size;
 
 u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
 
@@ -54,8 +54,8 @@ struct af9005_device_state {
 	int led_state;
 };
 
-int af9005_usb_generic_rw(struct dvb_usb_device *d, u8 * wbuf, u16 wlen,
-			  u8 * rbuf, u16 rlen, int delay_ms)
+static int af9005_usb_generic_rw(struct dvb_usb_device *d, u8 *wbuf, u16 wlen,
+			  u8 *rbuf, u16 rlen, int delay_ms)
 {
 	int actlen, ret = -ENOMEM;
 
@@ -98,12 +98,7 @@ int af9005_usb_generic_rw(struct dvb_usb_device *d, u8 * wbuf, u16 wlen,
 	return ret;
 }
 
-int af9005_usb_generic_write(struct dvb_usb_device *d, u8 * buf, u16 len)
-{
-	return af9005_usb_generic_rw(d, buf, len, NULL, 0, 0);
-}
-
-int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
+static int af9005_generic_read_write(struct dvb_usb_device *d, u16 reg,
 			      int readwrite, int type, u8 * values, int len)
 {
 	struct af9005_device_state *st = d->priv;
@@ -765,7 +760,7 @@ static int af9005_boot_packet(struct usb_device *udev, int type, u8 * reply)
 	return 0;
 }
 
-int af9005_download_firmware(struct usb_device *udev, const struct firmware *fw)
+static int af9005_download_firmware(struct usb_device *udev, const struct firmware *fw)
 {
 	int i, packets, ret, act_len;