[PATCH] drivers/net/wan/: possible cleanups

This patch contains possible cleanups including the following:
- make needlessly global code static
- #if 0 the following unused global function:
  - sdladrv.c: sdla_intde
- remove the following unused global variable:
  - lmc_media.c: lmc_t1_cables
- remove the following unneeded EXPORT_SYMBOL's:
  - cycx_drv.c: cycx_inten
  - sdladrv.c: sdla_inten
  - sdladrv.c: sdla_intde
  - sdladrv.c: sdla_intack
  - sdladrv.c: sdla_intr
  - syncppp.c: sppp_input
  - syncppp.c: sppp_change_mtu
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

drivers/net/wan/cycx_drv.c

@@ -109,7 +109,7 @@ static long cycx_2x_irq_options[]  = { 7, 3, 5, 9, 10, 11, 12, 15 };
  *		< 0	error.
  * Context:	process */
 
-int __init cycx_drv_init(void)
+static int __init cycx_drv_init(void)
 {
 	printk(KERN_INFO "%s v%u.%u %s\n", fullname, MOD_VERSION, MOD_RELEASE,
 			 copyright);
@@ -119,7 +119,7 @@ int __init cycx_drv_init(void)
 
 /* Module 'remove' entry point.
  * o release all remaining system resources */
-void cycx_drv_cleanup(void)
+static void cycx_drv_cleanup(void)
 {
 }
 
@@ -184,8 +184,7 @@ int cycx_down(struct cycx_hw *hw)
 }
 
 /* Enable interrupt generation.  */
-EXPORT_SYMBOL(cycx_inten);
-void cycx_inten(struct cycx_hw *hw)
+static void cycx_inten(struct cycx_hw *hw)
 {
 	writeb(0, hw->dpmbase);
 }

drivers/net/wan/cycx_main.c

@@ -103,7 +103,7 @@ static struct cycx_device *cycx_card_array;	/* adapter data space */
  *		< 0	error.
  * Context:	process
  */
-int __init cycx_init(void)
+static int __init cycx_init(void)
 {
 	int cnt, err = -ENOMEM;
 

drivers/net/wan/dscc4.c

@@ -446,8 +446,8 @@ static inline unsigned int dscc4_tx_quiescent(struct dscc4_dev_priv *dpriv,
 	return readl(dpriv->base_addr + CH0FTDA + dpriv->dev_id*4) == dpriv->ltda;
 }
 
-int state_check(u32 state, struct dscc4_dev_priv *dpriv, struct net_device *dev,
-		const char *msg)
+static int state_check(u32 state, struct dscc4_dev_priv *dpriv,
+		       struct net_device *dev, const char *msg)
 {
 	int ret = 0;
 
@@ -466,8 +466,9 @@ int state_check(u32 state, struct dscc4_dev_priv *dpriv, struct net_device *dev,
 	return ret;
 }
 
-void dscc4_tx_print(struct net_device *dev, struct dscc4_dev_priv *dpriv,
-		    char *msg)
+static void dscc4_tx_print(struct net_device *dev,
+			   struct dscc4_dev_priv *dpriv,
+			   char *msg)
 {
 	printk(KERN_DEBUG "%s: tx_current=%02d tx_dirty=%02d (%s)\n",
 	       dev->name, dpriv->tx_current, dpriv->tx_dirty, msg);
@@ -507,7 +508,8 @@ static void dscc4_release_ring(struct dscc4_dev_priv *dpriv)
 	}
 }
 
-inline int try_get_rx_skb(struct dscc4_dev_priv *dpriv, struct net_device *dev)
+static inline int try_get_rx_skb(struct dscc4_dev_priv *dpriv,
+				 struct net_device *dev)
 {
 	unsigned int dirty = dpriv->rx_dirty%RX_RING_SIZE;
 	struct RxFD *rx_fd = dpriv->rx_fd + dirty;
@@ -1891,7 +1893,7 @@ static void dscc4_rx_irq(struct dscc4_pci_priv *priv,
  * It failed and locked solid. Thus the introduction of a dummy skb.
  * Problem is acknowledged in errata sheet DS5. Joy :o/
  */
-struct sk_buff *dscc4_init_dummy_skb(struct dscc4_dev_priv *dpriv)
+static struct sk_buff *dscc4_init_dummy_skb(struct dscc4_dev_priv *dpriv)
 {
 	struct sk_buff *skb;
 

drivers/net/wan/farsync.c

@@ -74,11 +74,11 @@ MODULE_LICENSE("GPL");
 /*
  * Modules parameters and associated varaibles
  */
-int fst_txq_low = FST_LOW_WATER_MARK;
-int fst_txq_high = FST_HIGH_WATER_MARK;
-int fst_max_reads = 7;
-int fst_excluded_cards = 0;
-int fst_excluded_list[FST_MAX_CARDS];
+static int fst_txq_low = FST_LOW_WATER_MARK;
+static int fst_txq_high = FST_HIGH_WATER_MARK;
+static int fst_max_reads = 7;
+static int fst_excluded_cards = 0;
+static int fst_excluded_list[FST_MAX_CARDS];
 
 module_param(fst_txq_low, int, 0);
 module_param(fst_txq_high, int, 0);
@@ -572,13 +572,13 @@ static void do_bottom_half_rx(struct fst_card_info *card);
 static void fst_process_tx_work_q(unsigned long work_q);
 static void fst_process_int_work_q(unsigned long work_q);
 
-DECLARE_TASKLET(fst_tx_task, fst_process_tx_work_q, 0);
-DECLARE_TASKLET(fst_int_task, fst_process_int_work_q, 0);
+static DECLARE_TASKLET(fst_tx_task, fst_process_tx_work_q, 0);
+static DECLARE_TASKLET(fst_int_task, fst_process_int_work_q, 0);
 
-struct fst_card_info *fst_card_array[FST_MAX_CARDS];
-spinlock_t fst_work_q_lock;
-u64 fst_work_txq;
-u64 fst_work_intq;
+static struct fst_card_info *fst_card_array[FST_MAX_CARDS];
+static spinlock_t fst_work_q_lock;
+static u64 fst_work_txq;
+static u64 fst_work_intq;
 
 static void
 fst_q_work_item(u64 * queue, int card_index)
@@ -1497,7 +1497,7 @@ do_bottom_half_rx(struct fst_card_info *card)
  *      The interrupt service routine
  *      Dev_id is our fst_card_info pointer
  */
-irqreturn_t
+static irqreturn_t
 fst_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct fst_card_info *card;

drivers/net/wan/hdlc_fr.c

@@ -330,7 +330,7 @@ static int pvc_close(struct net_device *dev)
 
 
 
-int pvc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int pvc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
 	pvc_device *pvc = dev_to_pvc(dev);
 	fr_proto_pvc_info info;

drivers/net/wan/lmc/lmc_debug.c

@@ -8,10 +8,10 @@
 /*
  * Prints out len, max to 80 octets using printk, 20 per line
  */
-void lmcConsoleLog(char *type, unsigned char *ucData, int iLen)
-{
 #ifdef DEBUG
 #ifdef LMC_PACKET_LOG
+void lmcConsoleLog(char *type, unsigned char *ucData, int iLen)
+{
   int iNewLine = 1;
   char str[80], *pstr;
   
@@ -43,26 +43,24 @@ void lmcConsoleLog(char *type, unsigned char *ucData, int iLen)
     }
   sprintf(pstr, "\n");
   printk(str);
+}
 #endif
 #endif
-}
 
 #ifdef DEBUG
 u_int32_t lmcEventLogIndex = 0;
 u_int32_t lmcEventLogBuf[LMC_EVENTLOGSIZE * LMC_EVENTLOGARGS];
-#endif
 
 void lmcEventLog (u_int32_t EventNum, u_int32_t arg2, u_int32_t arg3)
 {
-#ifdef DEBUG
   lmcEventLogBuf[lmcEventLogIndex++] = EventNum;
   lmcEventLogBuf[lmcEventLogIndex++] = arg2;
   lmcEventLogBuf[lmcEventLogIndex++] = arg3;
   lmcEventLogBuf[lmcEventLogIndex++] = jiffies;
 
   lmcEventLogIndex &= (LMC_EVENTLOGSIZE * LMC_EVENTLOGARGS) - 1;
-#endif
 }
+#endif  /*  DEBUG  */
 
 void lmc_trace(struct net_device *dev, char *msg){
 #ifdef LMC_TRACE

drivers/net/wan/lmc/lmc_media.c

@@ -47,14 +47,6 @@
   * of the GNU General Public License version 2, incorporated herein by reference.
   */
 
-/*
- * For lack of a better place, put the SSI cable stuff here.
- */
-char *lmc_t1_cables[] = {
-  "V.10/RS423", "EIA530A", "reserved", "X.21", "V.35",
-  "EIA449/EIA530/V.36", "V.28/EIA232", "none", NULL
-};
-
 /*
  * protocol independent method.
  */

drivers/net/wan/pc300.h

@@ -472,24 +472,8 @@ enum pc300_loopback_cmds {
 
 #ifdef __KERNEL__
 /* Function Prototypes */
-int dma_buf_write(pc300_t *, int, ucchar *, int);
-int dma_buf_read(pc300_t *, int, struct sk_buff *);
 void tx_dma_start(pc300_t *, int);
-void rx_dma_start(pc300_t *, int);
-void tx_dma_stop(pc300_t *, int);
-void rx_dma_stop(pc300_t *, int);
-int cpc_queue_xmit(struct sk_buff *, struct net_device *);
-void cpc_net_rx(struct net_device *);
-void cpc_sca_status(pc300_t *, int);
-int cpc_change_mtu(struct net_device *, int);
-int cpc_ioctl(struct net_device *, struct ifreq *, int);
-int ch_config(pc300dev_t *);
-int rx_config(pc300dev_t *);
-int tx_config(pc300dev_t *);
-void cpc_opench(pc300dev_t *);
-void cpc_closech(pc300dev_t *);
 int cpc_open(struct net_device *dev);
-int cpc_close(struct net_device *dev);
 int cpc_set_media(hdlc_device *, int);
 #endif /* __KERNEL__ */
 

drivers/net/wan/pc300_tty.c

@@ -112,10 +112,10 @@ typedef	struct _st_cpc_tty_area {
 static struct tty_driver serial_drv;
 
 /* local variables */
-st_cpc_tty_area	cpc_tty_area[CPC_TTY_NPORTS];
+static st_cpc_tty_area	cpc_tty_area[CPC_TTY_NPORTS];
 
-int cpc_tty_cnt=0;	/* number of intrfaces configured with MLPPP */
-int cpc_tty_unreg_flag = 0;
+static int cpc_tty_cnt = 0;	/* number of intrfaces configured with MLPPP */
+static int cpc_tty_unreg_flag = 0;
 
 /* TTY functions prototype */
 static int cpc_tty_open(struct tty_struct *tty, struct file *flip);
@@ -132,9 +132,9 @@ static void cpc_tty_trace(pc300dev_t *dev, char* buf, int len, char rxtx);
 static void cpc_tty_signal_off(pc300dev_t *pc300dev, unsigned char);
 static void cpc_tty_signal_on(pc300dev_t *pc300dev, unsigned char);
 
-int pc300_tiocmset(struct tty_struct *, struct file *,
-			unsigned int, unsigned int);
-int pc300_tiocmget(struct tty_struct *, struct file *);
+static int pc300_tiocmset(struct tty_struct *, struct file *,
+			  unsigned int, unsigned int);
+static int pc300_tiocmget(struct tty_struct *, struct file *);
 
 /* functions called by PC300 driver */
 void cpc_tty_init(pc300dev_t *dev);
@@ -538,8 +538,8 @@ static int cpc_tty_chars_in_buffer(struct tty_struct *tty)
 	return(0); 
 } 
 
-int pc300_tiocmset(struct tty_struct *tty, struct file *file,
-			unsigned int set, unsigned int clear)
+static int pc300_tiocmset(struct tty_struct *tty, struct file *file,
+			  unsigned int set, unsigned int clear)
 {
 	st_cpc_tty_area    *cpc_tty; 
 
@@ -565,7 +565,7 @@ int pc300_tiocmset(struct tty_struct *tty, struct file *file,
 	return 0;
 }
 
-int pc300_tiocmget(struct tty_struct *tty, struct file *file)
+static int pc300_tiocmget(struct tty_struct *tty, struct file *file)
 {
 	unsigned int result;
 	unsigned char status;

drivers/net/wan/sdla.c

@@ -182,7 +182,7 @@ static char sdla_byte(struct net_device *dev, int addr)
 	return(byte);
 }
 
-void sdla_stop(struct net_device *dev)
+static void sdla_stop(struct net_device *dev)
 {
 	struct frad_local *flp;
 
@@ -209,7 +209,7 @@ void sdla_stop(struct net_device *dev)
 	}
 }
 
-void sdla_start(struct net_device *dev)
+static void sdla_start(struct net_device *dev)
 {
 	struct frad_local *flp;
 
@@ -247,7 +247,7 @@ void sdla_start(struct net_device *dev)
  *
  ***************************************************/
 
-int sdla_z80_poll(struct net_device *dev, int z80_addr, int jiffs, char resp1, char resp2)
+static int sdla_z80_poll(struct net_device *dev, int z80_addr, int jiffs, char resp1, char resp2)
 {
 	unsigned long start, done, now;
 	char          resp, *temp;
@@ -505,7 +505,7 @@ static int sdla_cmd(struct net_device *dev, int cmd, short dlci, short flags,
 
 static int sdla_reconfig(struct net_device *dev);
 
-int sdla_activate(struct net_device *slave, struct net_device *master)
+static int sdla_activate(struct net_device *slave, struct net_device *master)
 {
 	struct frad_local *flp;
 	int i;
@@ -527,7 +527,7 @@ int sdla_activate(struct net_device *slave, struct net_device *master)
 	return(0);
 }
 
-int sdla_deactivate(struct net_device *slave, struct net_device *master)
+static int sdla_deactivate(struct net_device *slave, struct net_device *master)
 {
 	struct frad_local *flp;
 	int               i;
@@ -549,7 +549,7 @@ int sdla_deactivate(struct net_device *slave, struct net_device *master)
 	return(0);
 }
 
-int sdla_assoc(struct net_device *slave, struct net_device *master)
+static int sdla_assoc(struct net_device *slave, struct net_device *master)
 {
 	struct frad_local *flp;
 	int               i;
@@ -585,7 +585,7 @@ int sdla_assoc(struct net_device *slave, struct net_device *master)
 	return(0);
 }
 
-int sdla_deassoc(struct net_device *slave, struct net_device *master)
+static int sdla_deassoc(struct net_device *slave, struct net_device *master)
 {
 	struct frad_local *flp;
 	int               i;
@@ -613,7 +613,7 @@ int sdla_deassoc(struct net_device *slave, struct net_device *master)
 	return(0);
 }
 
-int sdla_dlci_conf(struct net_device *slave, struct net_device *master, int get)
+static int sdla_dlci_conf(struct net_device *slave, struct net_device *master, int get)
 {
 	struct frad_local *flp;
 	struct dlci_local *dlp;
@@ -1324,7 +1324,7 @@ NOTE:  This is rather a useless action right now, as the
 	return(0);
 }
 
-int sdla_change_mtu(struct net_device *dev, int new_mtu)
+static int sdla_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct frad_local *flp;
 
@@ -1337,7 +1337,7 @@ int sdla_change_mtu(struct net_device *dev, int new_mtu)
 	return(-EOPNOTSUPP);
 }
 
-int sdla_set_config(struct net_device *dev, struct ifmap *map)
+static int sdla_set_config(struct net_device *dev, struct ifmap *map)
 {
 	struct frad_local *flp;
 	int               i;

drivers/net/wan/sdladrv.c

@@ -642,9 +642,7 @@ int sdla_mapmem (sdlahw_t* hw, unsigned long addr)
  * Enable interrupt generation.
  */
 
-EXPORT_SYMBOL(sdla_inten);
-
-int sdla_inten (sdlahw_t* hw)
+static int sdla_inten (sdlahw_t* hw)
 {
 	unsigned port = hw->port;
 	int tmp, i;
@@ -698,8 +696,7 @@ int sdla_inten (sdlahw_t* hw)
  * Disable interrupt generation.
  */
 
-EXPORT_SYMBOL(sdla_intde);
-
+#if 0
 int sdla_intde (sdlahw_t* hw)
 {
 	unsigned port = hw->port;
@@ -748,14 +745,13 @@ int sdla_intde (sdlahw_t* hw)
 	}
 	return 0;
 }
+#endif  /*  0  */
 
 /*============================================================================
  * Acknowledge SDLA hardware interrupt.
  */
 
-EXPORT_SYMBOL(sdla_intack);
-
-int sdla_intack (sdlahw_t* hw)
+static int sdla_intack (sdlahw_t* hw)
 {
 	unsigned port = hw->port;
 	int tmp;
@@ -827,8 +823,7 @@ void read_S514_int_stat (sdlahw_t* hw, u32* int_status)
  * Generate an interrupt to adapter's CPU.
  */
 
-EXPORT_SYMBOL(sdla_intr);
-
+#if 0
 int sdla_intr (sdlahw_t* hw)
 {
 	unsigned port = hw->port;
@@ -863,6 +858,7 @@ int sdla_intr (sdlahw_t* hw)
 	}
 	return 0;
 }
+#endif  /*  0  */
 
 /*============================================================================
  * Execute Adapter Command.

drivers/net/wan/syncppp.c

@@ -221,7 +221,7 @@ static void sppp_clear_timeout(struct sppp *p)
  *	here.
  */
  
-void sppp_input (struct net_device *dev, struct sk_buff *skb)
+static void sppp_input (struct net_device *dev, struct sk_buff *skb)
 {
 	struct ppp_header *h;
 	struct sppp *sp = (struct sppp *)sppp_of(dev);
@@ -355,8 +355,6 @@ void sppp_input (struct net_device *dev, struct sk_buff *skb)
 	return;
 }
 
-EXPORT_SYMBOL(sppp_input);
-
 /*
  *	Handle transmit packets.
  */
@@ -990,7 +988,7 @@ EXPORT_SYMBOL(sppp_reopen);
  *	the mtu is out of range.
  */
  
-int sppp_change_mtu(struct net_device *dev, int new_mtu)
+static int sppp_change_mtu(struct net_device *dev, int new_mtu)
 {
 	if(new_mtu<128||new_mtu>PPP_MTU||(dev->flags&IFF_UP))
 		return -EINVAL;
@@ -998,8 +996,6 @@ int sppp_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
-EXPORT_SYMBOL(sppp_change_mtu);
-
 /**
  *	sppp_do_ioctl - Ioctl handler for ppp/hdlc
  *	@dev: Device subject to ioctl
@@ -1456,7 +1452,7 @@ static int sppp_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_t
 	return 0;
 }
 
-struct packet_type sppp_packet_type = {
+static struct packet_type sppp_packet_type = {
 	.type	= __constant_htons(ETH_P_WAN_PPP),
 	.func	= sppp_rcv,
 };

include/linux/cycx_drv.h

@@ -60,6 +60,5 @@ extern int cycx_peek(struct cycx_hw *hw, u32 addr, void *buf, u32 len);
 extern int cycx_poke(struct cycx_hw *hw, u32 addr, void *buf, u32 len);
 extern int cycx_exec(void __iomem *addr);
 
-extern void cycx_inten(struct cycx_hw *hw);
 extern void cycx_intr(struct cycx_hw *hw);
 #endif	/* _CYCX_DRV_H */

include/linux/sdladrv.h

@@ -52,12 +52,8 @@ typedef struct sdlahw
 
 extern int sdla_setup	(sdlahw_t* hw, void* sfm, unsigned len);
 extern int sdla_down	(sdlahw_t* hw);
-extern int sdla_inten	(sdlahw_t* hw);
-extern int sdla_intde	(sdlahw_t* hw);
-extern int sdla_intack	(sdlahw_t* hw);
 extern void S514_intack  (sdlahw_t* hw, u32 int_status);
 extern void read_S514_int_stat (sdlahw_t* hw, u32* int_status);
-extern int sdla_intr	(sdlahw_t* hw);
 extern int sdla_mapmem	(sdlahw_t* hw, unsigned long addr);
 extern int sdla_peek	(sdlahw_t* hw, unsigned long addr, void* buf,
 			 unsigned len);

include/net/syncppp.h

@@ -86,7 +86,6 @@ static inline struct sppp *sppp_of(struct net_device *dev)
 
 void sppp_attach (struct ppp_device *pd);
 void sppp_detach (struct net_device *dev);
-void sppp_input (struct net_device *dev, struct sk_buff *m);
 int sppp_do_ioctl (struct net_device *dev, struct ifreq *ifr, int cmd);
 struct sk_buff *sppp_dequeue (struct net_device *dev);
 int sppp_isempty (struct net_device *dev);