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Message-ID: <m3od5g3xo0.fsf@maximus.localdomain>
Date: Wed, 02 Jul 2008 21:15:27 +0200
From: Krzysztof Halasa <khc@...waw.pl>
To: <netdev@...r.kernel.org>, lkml <linux-kernel@...r.kernel.org>
Subject: WAN: Remove dead code from PC300 driver, part #1
For review only, the actual patch will be made available in git.
WAN: Remove dead code from PC300 driver, part #1
diff --git a/drivers/net/wan/pc300.h b/drivers/net/wan/pc300.h
index 63e9fcf..cd24ea5 100644
--- a/drivers/net/wan/pc300.h
+++ b/drivers/net/wan/pc300.h
@@ -100,7 +100,6 @@
#define _PC300_H
#include <linux/hdlc.h>
-#include <net/syncppp.h>
#include "hd64572.h"
#include "pc300-falc-lh.h"
@@ -112,19 +111,11 @@ typedef __u16 ucshort; /* 16 bits, unsigned */
typedef __u8 ucchar; /* 8 bits, unsigned */
#endif /* CY_TYPES */
-#define PC300_PROTO_MLPPP 1
+#define PC300_PROTO_MLPPP 1
-#define PC300_KERNEL "2.4.x" /* Kernel supported by this driver */
-
-#define PC300_DEVNAME "hdlc" /* Dev. name base (for hdlc0, hdlc1, etc.) */
-#define PC300_MAXINDEX 100 /* Max dev. name index (the '0' in hdlc0) */
-
-#define PC300_MAXCARDS 4 /* Max number of cards per system */
#define PC300_MAXCHAN 2 /* Number of channels per card */
-#define PC300_PLX_WIN 0x80 /* PLX control window size (128b) */
#define PC300_RAMSIZE 0x40000 /* RAM window size (256Kb) */
-#define PC300_SCASIZE 0x400 /* SCA window size (1Kb) */
#define PC300_FALCSIZE 0x400 /* FALC window size (1Kb) */
#define PC300_OSC_CLOCK 24576000
@@ -160,7 +151,6 @@ typedef __u8 ucchar; /* 8 bits, unsigned */
* Memory access functions/macros *
* (required to support Alpha systems) *
***************************************/
-#ifdef __KERNEL__
#define cpc_writeb(port,val) {writeb((ucchar)(val),(port)); mb();}
#define cpc_writew(port,val) {writew((ushort)(val),(port)); mb();}
#define cpc_writel(port,val) {writel((uclong)(val),(port)); mb();}
@@ -169,17 +159,6 @@ typedef __u8 ucchar; /* 8 bits, unsigned */
#define cpc_readw(port) readw(port)
#define cpc_readl(port) readl(port)
-#else /* __KERNEL__ */
-#define cpc_writeb(port,val) (*(volatile ucchar *)(port) = (ucchar)(val))
-#define cpc_writew(port,val) (*(volatile ucshort *)(port) = (ucshort)(val))
-#define cpc_writel(port,val) (*(volatile uclong *)(port) = (uclong)(val))
-
-#define cpc_readb(port) (*(volatile ucchar *)(port))
-#define cpc_readw(port) (*(volatile ucshort *)(port))
-#define cpc_readl(port) (*(volatile uclong *)(port))
-
-#endif /* __KERNEL__ */
-
/****** Data Structures *****************************************************/
/*
@@ -321,24 +300,15 @@ typedef struct pc300patterntst {
} pc300patterntst_t;
typedef struct pc300dev {
- void *if_ptr; /* General purpose pointer */
struct pc300ch *chan;
ucchar trace_on;
uclong line_on; /* DCD(X.21, RSV) / sync(TE) change counters */
uclong line_off;
-#ifdef __KERNEL__
char name[16];
struct net_device *dev;
-
- void *private;
- struct sk_buff *tx_skb;
- union { /* This union has all the protocol-specific structures */
- struct ppp_device pppdev;
- }ifu;
#ifdef CONFIG_PC300_MLPPP
void *cpc_tty; /* information to PC300 TTY driver */
#endif
-#endif /* __KERNEL__ */
}pc300dev_t;
typedef struct pc300hw {
@@ -401,9 +371,7 @@ typedef struct pc300ch {
typedef struct pc300 {
pc300hw_t hw; /* hardware config. */
pc300ch_t chan[PC300_MAXCHAN];
-#ifdef __KERNEL__
spinlock_t card_lock;
-#endif /* __KERNEL__ */
} pc300_t;
typedef struct pc300conf {
@@ -471,12 +439,10 @@ enum pc300_loopback_cmds {
#define PC300_TX_QUEUE_LEN 100
#define PC300_DEF_MTU 1600
-#ifdef __KERNEL__
/* Function Prototypes */
void tx_dma_start(pc300_t *, int);
int cpc_open(struct net_device *dev);
int cpc_set_media(hdlc_device *, int);
-#endif /* __KERNEL__ */
#endif /* _PC300_H */
diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c
index 694df44..3226a74 100644
--- a/drivers/net/wan/pc300_drv.c
+++ b/drivers/net/wan/pc300_drv.c
@@ -3150,19 +3150,10 @@ int cpc_open(struct net_device *dev)
printk("pc300: cpc_open");
#endif
-#ifdef FIXME
- if (hdlc->proto.id == IF_PROTO_PPP) {
- d->if_ptr = &hdlc->state.ppp.pppdev;
- }
-#endif
-
result = hdlc_open(dev);
- if (/* FIXME hdlc->proto.id == IF_PROTO_PPP*/ 0) {
- dev->priv = d;
- }
- if (result) {
+
+ if (result)
return result;
- }
sprintf(ifr.ifr_name, "%s", dev->name);
result = cpc_opench(d);
@@ -3195,9 +3186,7 @@ static int cpc_close(struct net_device *dev)
CPC_UNLOCK(card, flags);
hdlc_close(dev);
- if (/* FIXME hdlc->proto.id == IF_PROTO_PPP*/ 0) {
- d->if_ptr = NULL;
- }
+
#ifdef CONFIG_PC300_MLPPP
if (chan->conf.proto == PC300_PROTO_MLPPP) {
cpc_tty_unregister_service(d);
@@ -3358,7 +3347,6 @@ static void cpc_init_card(pc300_t * card)
chan->nfree_tx_bd = N_DMA_TX_BUF;
d->chan = chan;
- d->tx_skb = NULL;
d->trace_on = 0;
d->line_on = 0;
d->line_off = 0;
--
Krzysztof Halasa
--
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