mISDN: mark symbols static where possible

We get a few warnings when building kernel with W=1:
drivers/isdn/hardware/mISDN/hfcmulti.c:568:1: warning: no previous declaration for 'enablepcibridge' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:574:1: warning: no previous declaration for 'disablepcibridge' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:580:1: warning: no previous declaration for 'readpcibridge' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:608:1: warning: no previous declaration for 'writepcibridge' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:638:1: warning: no previous declaration for 'cpld_set_reg' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:645:1: warning: no previous declaration for 'cpld_write_reg' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:657:1: warning: no previous declaration for 'cpld_read_reg' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:674:1: warning: no previous declaration for 'vpm_write_address' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:681:1: warning: no previous declaration for 'vpm_read_address' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:695:1: warning: no previous declaration for 'vpm_in' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:716:1: warning: no previous declaration for 'vpm_out' [-Wmissing-declarations]
drivers/isdn/hardware/mISDN/hfcmulti.c:1028:1: warning: no previous declaration for 'plxsd_checksync' [-Wmissing-declarations]
....

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/hardware/mISDN/avmfritz.c

@@ -284,7 +284,7 @@ __write_ctrl_pciv2(struct fritzcard *fc, struct hdlc_hw *hdlc, u32 channel) {
 					  AVM_HDLC_STATUS_1));
 }
 
-void
+static void
 write_ctrl(struct bchannel *bch, int which) {
 	struct fritzcard *fc = bch->hw;
 	struct hdlc_hw *hdlc;
@@ -741,7 +741,7 @@ inithdlc(struct fritzcard *fc)
 	modehdlc(&fc->bch[1], -1);
 }
 
-void
+static void
 clear_pending_hdlc_ints(struct fritzcard *fc)
 {
 	u32 val;
@@ -962,7 +962,7 @@ avm_dctrl(struct mISDNchannel *ch, u32 cmd, void *arg)
 	return err;
 }
 
-int
+static int
 setup_fritz(struct fritzcard *fc)
 {
 	u32 val, ver;

drivers/isdn/hardware/mISDN/hfcmulti.c

@@ -564,19 +564,19 @@ disable_hwirq(struct hfc_multi *hc)
 #define	MAX_TDM_CHAN 32
 
 
-inline void
+static inline void
 enablepcibridge(struct hfc_multi *c)
 {
 	HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x3); /* was _io before */
 }
 
-inline void
+static inline void
 disablepcibridge(struct hfc_multi *c)
 {
 	HFC_outb(c, R_BRG_PCM_CFG, (0x0 << 6) | 0x2); /* was _io before */
 }
 
-inline unsigned char
+static inline unsigned char
 readpcibridge(struct hfc_multi *hc, unsigned char address)
 {
 	unsigned short cipv;
@@ -604,7 +604,7 @@ readpcibridge(struct hfc_multi *hc, unsigned char address)
 	return data;
 }
 
-inline void
+static inline void
 writepcibridge(struct hfc_multi *hc, unsigned char address, unsigned char data)
 {
 	unsigned short cipv;
@@ -634,14 +634,14 @@ writepcibridge(struct hfc_multi *hc, unsigned char address, unsigned char data)
 	outl(datav, hc->pci_iobase);
 }
 
-inline void
+static inline void
 cpld_set_reg(struct hfc_multi *hc, unsigned char reg)
 {
 	/* Do data pin read low byte */
 	HFC_outb(hc, R_GPIO_OUT1, reg);
 }
 
-inline void
+static inline void
 cpld_write_reg(struct hfc_multi *hc, unsigned char reg, unsigned char val)
 {
 	cpld_set_reg(hc, reg);
@@ -653,7 +653,7 @@ cpld_write_reg(struct hfc_multi *hc, unsigned char reg, unsigned char val)
 	return;
 }
 
-inline unsigned char
+static inline unsigned char
 cpld_read_reg(struct hfc_multi *hc, unsigned char reg)
 {
 	unsigned char bytein;
@@ -670,14 +670,14 @@ cpld_read_reg(struct hfc_multi *hc, unsigned char reg)
 	return bytein;
 }
 
-inline void
+static inline void
 vpm_write_address(struct hfc_multi *hc, unsigned short addr)
 {
 	cpld_write_reg(hc, 0, 0xff & addr);
 	cpld_write_reg(hc, 1, 0x01 & (addr >> 8));
 }
 
-inline unsigned short
+static inline unsigned short
 vpm_read_address(struct hfc_multi *c)
 {
 	unsigned short addr;
@@ -691,7 +691,7 @@ vpm_read_address(struct hfc_multi *c)
 	return addr & 0x1ff;
 }
 
-inline unsigned char
+static inline unsigned char
 vpm_in(struct hfc_multi *c, int which, unsigned short addr)
 {
 	unsigned char res;
@@ -712,7 +712,7 @@ vpm_in(struct hfc_multi *c, int which, unsigned short addr)
 	return res;
 }
 
-inline void
+static inline void
 vpm_out(struct hfc_multi *c, int which, unsigned short addr,
 	unsigned char data)
 {
@@ -1024,7 +1024,7 @@ hfcmulti_resync(struct hfc_multi *locked, struct hfc_multi *newmaster, int rm)
 }
 
 /* This must be called AND hc must be locked irqsave!!! */
-inline void
+static inline void
 plxsd_checksync(struct hfc_multi *hc, int rm)
 {
 	if (hc->syncronized) {

drivers/isdn/hardware/mISDN/mISDNipac.c

@@ -113,7 +113,7 @@ isac_ph_state_bh(struct dchannel *dch)
 	pr_debug("%s: TE newstate %x\n", isac->name, dch->state);
 }
 
-void
+static void
 isac_empty_fifo(struct isac_hw *isac, int count)
 {
 	u8 *ptr;

drivers/isdn/hardware/mISDN/w6692.c

@@ -848,7 +848,7 @@ dbusy_timer_handler(struct dchannel *dch)
 	}
 }
 
-void initW6692(struct w6692_hw *card)
+static void initW6692(struct w6692_hw *card)
 {
 	u8	val;