[PATCH] isdn4linux: Siemens Gigaset drivers: logging usage

With Hansjoerg Lipp <hjlipp@web.de>

Improve error reporting of the Gigaset drivers, by using the
dev_err/dev_warn/dev_info macros from device.h instead of err/warn/info from
usb.h whereever possible.

Also rename the private dbg macro to gig_dbg in order to avoid confusion with
the macro of the same name in usb.h.
Signed-off-by: Hansjoerg Lipp <hjlipp@web.de>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/isdn/gigaset/asyncdata.c

@@ -51,7 +51,7 @@ static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
 	for (;;) {
 		cs->respdata[cbytes] = c;
 		if (c == 10 || c == 13) {
-			dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
+			gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
 				__func__, cbytes);
 			cs->cbytes = cbytes;
 			gigaset_handle_modem_response(cs); /* can change
@@ -68,7 +68,7 @@ static inline int cmd_loop(unsigned char c, unsigned char *src, int numbytes,
 			if (cbytes < MAX_RESP_SIZE - 1)
 				cbytes++;
 			else
-				warn("response too large");
+				dev_warn(cs->dev, "response too large\n");
 		}
 
 		if (!numbytes)
@@ -154,39 +154,37 @@ static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
 			c ^= PPP_TRANS;
 #ifdef CONFIG_GIGASET_DEBUG
 			if (unlikely(!muststuff(c)))
-				dbg(DEBUG_HDLC,
-				    "byte stuffed: 0x%02x", c);
+				gig_dbg(DEBUG_HDLC, "byte stuffed: 0x%02x", c);
 #endif
 		} else if (unlikely(c == PPP_FLAG)) {
 			if (unlikely(inputstate & INS_skip_frame)) {
 				if (!(inputstate & INS_have_data)) { /* 7E 7E */
-					//dbg(DEBUG_HDLC, "(7e)7e------------------------");
 #ifdef CONFIG_GIGASET_DEBUG
 					++bcs->emptycount;
 #endif
 				} else
-					dbg(DEBUG_HDLC,
+					gig_dbg(DEBUG_HDLC,
 					    "7e----------------------------");
 
 				/* end of frame */
 				error = 1;
 				gigaset_rcv_error(NULL, cs, bcs);
 			} else if (!(inputstate & INS_have_data)) { /* 7E 7E */
-				//dbg(DEBUG_HDLC, "(7e)7e------------------------");
 #ifdef CONFIG_GIGASET_DEBUG
 				++bcs->emptycount;
 #endif
 				break;
 			} else {
-				dbg(DEBUG_HDLC,
+				gig_dbg(DEBUG_HDLC,
 					"7e----------------------------");
 
 				/* end of frame */
 				error = 0;
 
 				if (unlikely(fcs != PPP_GOODFCS)) {
-					err("Packet checksum at %lu failed, "
-					    "packet is corrupted (%u bytes)!",
+					dev_err(cs->dev,
+					    "Packet checksum at %lu failed, "
+					    "packet is corrupted (%u bytes)!\n",
 					    bcs->rcvbytes, skb->len);
 					compskb = NULL;
 					gigaset_rcv_error(compskb, cs, bcs);
@@ -200,9 +198,11 @@ static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
 						skb = NULL;
 						inputstate |= INS_skip_frame;
 						if (l == 1) {
-							err("invalid packet size (1)!");
+							dev_err(cs->dev,
+						  "invalid packet size (1)!\n");
 							error = 1;
-							gigaset_rcv_error(NULL, cs, bcs);
+							gigaset_rcv_error(NULL,
+								cs, bcs);
 						}
 					}
 					if (likely(!(error ||
@@ -225,7 +225,8 @@ static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
 			} else if (likely((skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)) {
 				skb_reserve(skb, HW_HDR_LEN);
 			} else {
-				warn("could not allocate new skb");
+				dev_warn(cs->dev,
+					 "could not allocate new skb\n");
 				inputstate |= INS_skip_frame;
 			}
 
@@ -233,7 +234,7 @@ static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
 #ifdef CONFIG_GIGASET_DEBUG
 		} else if (unlikely(muststuff(c))) {
 			/* Should not happen. Possible after ZDLE=1<CR><LF>. */
-			dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
+			gig_dbg(DEBUG_HDLC, "not byte stuffed: 0x%02x", c);
 #endif
 		}
 
@@ -241,8 +242,8 @@ static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
 
 #ifdef CONFIG_GIGASET_DEBUG
 		if (unlikely(!(inputstate & INS_have_data))) {
-			dbg(DEBUG_HDLC,
-			    "7e (%d x) ================", bcs->emptycount);
+			gig_dbg(DEBUG_HDLC, "7e (%d x) ================",
+				bcs->emptycount);
 			bcs->emptycount = 0;
 		}
 #endif
@@ -251,7 +252,7 @@ static inline int hdlc_loop(unsigned char c, unsigned char *src, int numbytes,
 
 		if (likely(!(inputstate & INS_skip_frame))) {
 			if (unlikely(skb->len == SBUFSIZE)) {
-				warn("received packet too long");
+				dev_warn(cs->dev, "received packet too long\n");
 				dev_kfree_skb_any(skb);
 				skb = NULL;
 				inputstate |= INS_skip_frame;
@@ -307,7 +308,7 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
 		if (likely(!(inputstate & INS_skip_frame))) {
 			if (unlikely(skb->len == SBUFSIZE)) {
 				//FIXME just pass skb up and allocate a new one
-				warn("received packet too long");
+				dev_warn(cs->dev, "received packet too long\n");
 				dev_kfree_skb_any(skb);
 				skb = NULL;
 				inputstate |= INS_skip_frame;
@@ -341,7 +342,7 @@ static inline int iraw_loop(unsigned char c, unsigned char *src, int numbytes,
 				  != NULL)) {
 			skb_reserve(skb, HW_HDR_LEN);
 		} else {
-			warn("could not allocate new skb");
+			dev_warn(cs->dev, "could not allocate new skb\n");
 			inputstate |= INS_skip_frame;
 		}
 	}
@@ -362,13 +363,13 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 
 	head = atomic_read(&inbuf->head);
 	tail = atomic_read(&inbuf->tail);
-	dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+	gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
 
 	if (head != tail) {
 		cs = inbuf->cs;
 		src = inbuf->data + head;
 		numbytes = (head > tail ? RBUFSIZE : tail) - head;
-		dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+		gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
 
 		while (numbytes) {
 			if (atomic_read(&cs->mstate) == MS_LOCKED) {
@@ -400,13 +401,14 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 
 					src += procbytes;
 					numbytes -= procbytes;
-				} else {  /* DLE-char */
+				} else {  /* DLE char */
 					inbuf->inputstate &= ~INS_DLE_char;
 					switch (c) {
 					case 'X': /*begin of command*/
 #ifdef CONFIG_GIGASET_DEBUG
 						if (inbuf->inputstate & INS_command)
-							err("received <DLE> 'X' in command mode");
+							dev_err(cs->dev,
+					"received <DLE> 'X' in command mode\n");
 #endif
 						inbuf->inputstate |=
 							INS_command | INS_DLE_command;
@@ -414,7 +416,8 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 					case '.': /*end of command*/
 #ifdef CONFIG_GIGASET_DEBUG
 						if (!(inbuf->inputstate & INS_command))
-							err("received <DLE> '.' in hdlc mode");
+							dev_err(cs->dev,
+					"received <DLE> '.' in hdlc mode\n");
 #endif
 						inbuf->inputstate &= cs->dle ?
 							~(INS_DLE_command|INS_command)
@@ -422,7 +425,9 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 						break;
 					//case DLE_FLAG: /*DLE_FLAG in data stream*/ /* schon oben behandelt! */
 					default:
-						err("received 0x10 0x%02x!", (int) c);
+						dev_err(cs->dev,
+						      "received 0x10 0x%02x!\n",
+							(int) c);
 						/* FIXME: reset driver?? */
 					}
 				}
@@ -441,7 +446,7 @@ void gigaset_m10x_input(struct inbuf_t *inbuf)
 			}
 		}
 
-		dbg(DEBUG_INTR, "setting head to %u", head);
+		gig_dbg(DEBUG_INTR, "setting head to %u", head);
 		atomic_set(&inbuf->head, head);
 	}
 }
@@ -483,7 +488,6 @@ static struct sk_buff *HDLC_Encode(struct sk_buff *skb, int head, int tail)
 	 */
 	hdlc_skb = dev_alloc_skb(skb->len + stuf_cnt + 6 + tail + head);
 	if (!hdlc_skb) {
-		err("unable to allocate memory for HDLC encoding!");
 		dev_kfree_skb(skb);
 		return NULL;
 	}
@@ -543,7 +547,6 @@ static struct sk_buff *iraw_encode(struct sk_buff *skb, int head, int tail)
 	/* worst case: every byte must be stuffed */
 	iraw_skb = dev_alloc_skb(2*skb->len + tail + head);
 	if (!iraw_skb) {
-		err("unable to allocate memory for HDLC encoding!");
 		dev_kfree_skb(skb);
 		return NULL;
 	}
@@ -584,8 +587,11 @@ int gigaset_m10x_send_skb(struct bc_state *bcs, struct sk_buff *skb)
 		skb = HDLC_Encode(skb, HW_HDR_LEN, 0);
 	else
 		skb = iraw_encode(skb, HW_HDR_LEN, 0);
-	if (!skb)
+	if (!skb) {
+		dev_err(bcs->cs->dev,
+			"unable to allocate memory for encoding!\n");
 		return -ENOMEM;
+	}
 
 	skb_queue_tail(&bcs->squeue, skb);
 	tasklet_schedule(&bcs->cs->write_tasklet);

drivers/isdn/gigaset/gigaset.h

@@ -106,7 +106,7 @@ extern int gigaset_debuglevel;	/* "needs" cast to (enum debuglevel) */
  * DEBUG_INTR.
  */
 enum debuglevel { /* up to 24 bits (atomic_t) */
-	DEBUG_REG	  = 0x0002,/* serial port I/O register operations */
+	DEBUG_REG	  = 0x0002, /* serial port I/O register operations */
 	DEBUG_OPEN	  = 0x0004, /* open/close serial port */
 	DEBUG_INTR	  = 0x0008, /* interrupt processing */
 	DEBUG_INTR_DUMP	  = 0x0010, /* Activating hexdump debug output on
@@ -137,45 +137,47 @@ enum debuglevel { /* up to 24 bits (atomic_t) */
 					 activated */
 };
 
-#ifdef CONFIG_GIGASET_DEBUG
-#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
-#else
-#define DEBUG_DEFAULT 0
+/* missing from linux/device.h ... */
+#ifndef dev_notice
+#define dev_notice(dev, format, arg...)		\
+	dev_printk(KERN_NOTICE , dev , format , ## arg)
 #endif
 
-/* redefine syslog macros to prepend module name instead of entire
- * source path */
+/* Kernel message macros for situations where dev_printk and friends cannot be
+ * used for lack of reliable access to a device structure.
+ * linux/usb.h already contains these but in an obsolete form which clutters
+ * the log needlessly, and according to the USB maintainer those should be
+ * removed rather than fixed anyway.
+ */
+#undef err
 #undef info
-#define info(format, arg...) \
-	printk(KERN_INFO "%s: " format "\n", \
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
-#undef notice
-#define notice(format, arg...) \
-	printk(KERN_NOTICE "%s: " format "\n", \
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
-
 #undef warn
-#define warn(format, arg...) \
-	printk(KERN_WARNING "%s: " format "\n", \
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+#undef notice
 
-#undef err
-#define err(format, arg...) \
-	printk(KERN_ERR "%s: " format "\n", \
-	       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" , ## arg)
+#define err(format, arg...) printk(KERN_ERR KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define info(format, arg...) printk(KERN_INFO KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define warn(format, arg...) printk(KERN_WARNING KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
+#define notice(format, arg...) printk(KERN_NOTICE KBUILD_MODNAME ": " \
+	format "\n" , ## arg)
 
-#undef dbg
 #ifdef CONFIG_GIGASET_DEBUG
-#define dbg(level, format, arg...) \
+
+#define gig_dbg(level, format, arg...) \
 	do { \
 		if (unlikely(((enum debuglevel)gigaset_debuglevel) & (level))) \
-			printk(KERN_DEBUG "%s: " format "\n", \
-			       THIS_MODULE ? THIS_MODULE->name : "gigaset_hw" \
-			       , ## arg); \
+			printk(KERN_DEBUG KBUILD_MODNAME ": " format "\n", \
+			       ## arg); \
 	} while (0)
+#define DEBUG_DEFAULT (DEBUG_INIT | DEBUG_TRANSCMD | DEBUG_CMD | DEBUG_USBREQ)
+
 #else
-#define dbg(level, format, arg...) do {} while (0)
+
+#define gig_dbg(level, format, arg...) do {} while (0)
+#define DEBUG_DEFAULT 0
+
 #endif
 
 void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
@@ -368,16 +370,6 @@ struct inbuf_t {
  *   BAS_OUTBUFPAD bytes immediately before data[write] (if
  *   write>=BAS_OUTBUFPAD) or those of the pad area (if write<BAS_OUTBUFPAD)
  *   are also filled with that value
- * - optionally, the following statistics on the buffer's usage can be
- *   collected:
- *   maxfill:    maximum number of bytes occupied
- *   idlefills:  number of times a frame of idle bytes is prepared
- *   emptygets:  number of times the buffer was empty when a data frame was
- *               requested
- *   backtoback: number of times two data packets were entered into the buffer
- *               without intervening idle flags
- *   nakedback:  set if no idle flags have been inserted since the last data
- *               packet
  */
 struct isowbuf_t {
 	atomic_t	read;
@@ -471,7 +463,7 @@ struct bc_state {
 	int busy;
 	int use_count;
 
-	/* hardware drivers */
+	/* private data of hardware drivers */
 	union {
 		struct ser_bc_state *ser;	/* serial hardware driver */
 		struct usb_bc_state *usb;	/* usb hardware driver (m105) */
@@ -482,6 +474,7 @@ struct bc_state {
 struct cardstate {
 	struct gigaset_driver *driver;
 	unsigned minor_index;
+	struct device *dev;
 
 	const struct gigaset_ops *ops;
 
@@ -531,11 +524,11 @@ struct cardstate {
 	int cs_init;
 	int ignoreframes;		/* frames to ignore after setting up the
 					   B channel */
-	struct semaphore sem;		/* locks this structure: */
-					/*   connected is not changed, */
-					/*   hardware_up is not changed, */
-					/*   MState is not changed to or from
-					     MS_LOCKED */
+	struct semaphore sem;		/* locks this structure:
+					 *   connected is not changed,
+					 *   hardware_up is not changed,
+					 *   MState is not changed to or from
+					 *   MS_LOCKED */
 
 	struct timer_list timer;
 	int retry_count;
@@ -543,7 +536,7 @@ struct cardstate {
 					   dle encoded */
 	int cur_at_seq;			/* sequence of AT commands being
 					   processed */
-	int curchannel;			/* channel, those commands are meant
+	int curchannel;			/* channel those commands are meant
 					   for */
 	atomic_t commands_pending;	/* flag(s) in xxx.commands_pending have
 					   been set */
@@ -551,7 +544,7 @@ struct cardstate {
 					/* tasklet for serializing AT commands.
 					 * Scheduled
 					 *   -> for modem reponses (and
-					 *      incomming data for M10x)
+					 *      incoming data for M10x)
 					 *   -> on timeout
 					 *   -> after setting bits in
 					 *      xxx.at_state.pending_command
@@ -569,7 +562,7 @@ struct cardstate {
 	unsigned char respdata[MAX_RESP_SIZE];
 	unsigned cbytes;
 
-	/* hardware drivers */
+	/* private data of hardware drivers */
 	union {
 		struct usb_cardstate *usb; /* USB hardware driver (m105) */
 		struct ser_cardstate *ser; /* serial hardware driver */
@@ -607,8 +600,8 @@ struct bas_bc_state {
 	struct isow_urbctx_t	isoouturbs[BAS_OUTURBS];
 	struct isow_urbctx_t	*isooutdone, *isooutfree, *isooutovfl;
 	struct isowbuf_t	*isooutbuf;
-	unsigned numsub;			/* submitted URB counter (for
-						   diagnostic messages only) */
+	unsigned numsub;		/* submitted URB counter
+					   (for diagnostic messages only) */
 	struct tasklet_struct	sent_tasklet;
 
 	/* isochronous input state */
@@ -618,25 +611,22 @@ struct bas_bc_state {
 	struct urb *isoindone;		/* completed isoc read URB */
 	int loststatus;			/* status of dropped URB */
 	unsigned isoinlost;		/* number of bytes lost */
-	/* state of bit unstuffing algorithm (in addition to
-	   BC_state.inputstate) */
+	/* state of bit unstuffing algorithm
+	   (in addition to BC_state.inputstate) */
 	unsigned seqlen;		/* number of '1' bits not yet
 					   unstuffed */
-	unsigned inbyte, inbits;		/* collected bits for next byte
-						*/
+	unsigned inbyte, inbits;	/* collected bits for next byte */
 	/* statistics */
 	unsigned goodbytes;		/* bytes correctly received */
-	unsigned alignerrs;			/* frames with incomplete byte
-						   at end */
+	unsigned alignerrs;		/* frames with incomplete byte at end */
 	unsigned fcserrs;		/* FCS errors */
 	unsigned frameerrs;		/* framing errors */
 	unsigned giants;		/* long frames */
 	unsigned runts;			/* short frames */
 	unsigned aborts;		/* HDLC aborts */
-	unsigned shared0s;			/* '0' bits shared between flags
-						*/
-	unsigned stolen0s;			/* '0' stuff bits also serving
-						   as leading flag bits */
+	unsigned shared0s;		/* '0' bits shared between flags */
+	unsigned stolen0s;		/* '0' stuff bits also serving as
+					   leading flag bits */
 	struct tasklet_struct rcvd_tasklet;
 };
 
@@ -764,7 +754,7 @@ static inline void gigaset_isdn_rcv_err(struct bc_state *bcs)
 	isdn_ctrl response;
 
 	/* error -> LL */
-	dbg(DEBUG_CMD, "sending L1ERR");
+	gig_dbg(DEBUG_CMD, "sending L1ERR");
 	response.driver = bcs->cs->myid;
 	response.command = ISDN_STAT_L1ERR;
 	response.arg = bcs->channel;
@@ -872,7 +862,7 @@ static inline void gigaset_bchannel_down(struct bc_state *bcs)
 {
 	gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_CLOSED, NULL, 0, NULL);
 
-	dbg(DEBUG_CMD, "scheduling BC_CLOSED");
+	gig_dbg(DEBUG_CMD, "scheduling BC_CLOSED");
 	gigaset_schedule_event(bcs->cs);
 }
 
@@ -882,7 +872,7 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs)
 {
 	gigaset_add_event(bcs->cs, &bcs->at_state, EV_BC_OPEN, NULL, 0, NULL);
 
-	dbg(DEBUG_CMD, "scheduling BC_OPEN");
+	gig_dbg(DEBUG_CMD, "scheduling BC_OPEN");
 	gigaset_schedule_event(bcs->cs);
 }
 
@@ -947,7 +937,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 {
 	unsigned n, head, tail, bytesleft;
 
-	dbg(DEBUG_INTR, "received %u bytes", numbytes);
+	gig_dbg(DEBUG_INTR, "received %u bytes", numbytes);
 
 	if (!numbytes)
 		return 0;
@@ -955,7 +945,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 	bytesleft = numbytes;
 	tail = atomic_read(&inbuf->tail);
 	head = atomic_read(&inbuf->head);
-	dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+	gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
 
 	while (bytesleft) {
 		if (head > tail)
@@ -965,7 +955,8 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 		else
 			n = RBUFSIZE - tail;
 		if (!n) {
-			err("buffer overflow (%u bytes lost)", bytesleft);
+			dev_err(inbuf->cs->dev,
+				"buffer overflow (%u bytes lost)", bytesleft);
 			break;
 		}
 		if (n > bytesleft)
@@ -975,7 +966,7 @@ static inline int gigaset_fill_inbuf(struct inbuf_t *inbuf,
 		tail = (tail + n) % RBUFSIZE;
 		src += n;
 	}
-	dbg(DEBUG_INTR, "setting tail to %u", tail);
+	gig_dbg(DEBUG_INTR, "setting tail to %u", tail);
 	atomic_set(&inbuf->tail, tail);
 	return numbytes != bytesleft;
 }

drivers/isdn/gigaset/isocdata.c

@@ -83,12 +83,12 @@ static inline int isowbuf_startwrite(struct isowbuf_t *iwb)
 {
 	if (!atomic_dec_and_test(&iwb->writesem)) {
 		atomic_inc(&iwb->writesem);
-		dbg(DEBUG_ISO,
-		    "%s: couldn't acquire iso write semaphore", __func__);
+		gig_dbg(DEBUG_ISO, "%s: couldn't acquire iso write semaphore",
+			__func__);
 		return 0;
 	}
 #ifdef CONFIG_GIGASET_DEBUG
-	dbg(DEBUG_ISO,
+	gig_dbg(DEBUG_ISO,
 		"%s: acquired iso write semaphore, data[write]=%02x, nbits=%d",
 		__func__, iwb->data[atomic_read(&iwb->write)], iwb->wbits);
 #endif
@@ -143,7 +143,7 @@ static inline void isowbuf_putflag(struct isowbuf_t *iwb)
 	/* recover the idle flag byte */
 	write = atomic_read(&iwb->write);
 	iwb->idle = iwb->data[write];
-	dbg(DEBUG_ISO, "idle fill byte %02x", iwb->idle);
+	gig_dbg(DEBUG_ISO, "idle fill byte %02x", iwb->idle);
 	/* mask extraneous bits in buffer */
 	iwb->data[write] &= (1 << iwb->wbits) - 1;
 }
@@ -162,15 +162,14 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
 	read = atomic_read(&iwb->nextread);
 	write = atomic_read(&iwb->write);
 	if (likely(read == write)) {
-		//dbg(DEBUG_STREAM, "%s: send buffer empty", __func__);
 		/* return idle frame */
 		return read < BAS_OUTBUFPAD ?
 			BAS_OUTBUFSIZE : read - BAS_OUTBUFPAD;
 	}
 
 	limit = read + size;
-	dbg(DEBUG_STREAM,
-	    "%s: read=%d write=%d limit=%d", __func__, read, write, limit);
+	gig_dbg(DEBUG_STREAM, "%s: read=%d write=%d limit=%d",
+		__func__, read, write, limit);
 #ifdef CONFIG_GIGASET_DEBUG
 	if (unlikely(size < 0 || size > BAS_OUTBUFPAD)) {
 		err("invalid size %d", size);
@@ -195,7 +194,7 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
 				pbyte = iwb->data[write]; /* save
 							     partial byte */
 				limit = write + BAS_OUTBUFPAD;
-				dbg(DEBUG_STREAM,
+				gig_dbg(DEBUG_STREAM,
 					"%s: filling %d->%d with %02x",
 					__func__, write, limit, iwb->idle);
 				if (write + BAS_OUTBUFPAD < BAS_OUTBUFSIZE)
@@ -208,7 +207,8 @@ int gigaset_isowbuf_getbytes(struct isowbuf_t *iwb, int size)
 					       - write);
 					limit = 0;
 				}
-				dbg(DEBUG_STREAM, "%s: restoring %02x at %d",
+				gig_dbg(DEBUG_STREAM,
+					"%s: restoring %02x at %d",
 					__func__, pbyte, limit);
 				iwb->data[limit] = pbyte; /* restore
 							     partial byte */
@@ -252,7 +252,7 @@ static inline void dump_bytes(enum debuglevel level, const char *tag,
 	while (count-- > 0) {
 		if (i > sizeof(dbgline) - 4) {
 			dbgline[i] = '\0';
-			dbg(level, "%s:%s", tag, dbgline);
+			gig_dbg(level, "%s:%s", tag, dbgline);
 			i = 0;
 		}
 		c = *bytes++;
@@ -262,7 +262,7 @@ static inline void dump_bytes(enum debuglevel level, const char *tag,
 		dbgline[i++] = hexdigit[c & 0x0f];
 	}
 	dbgline[i] = '\0';
-	dbg(level, "%s:%s", tag, dbgline);
+	gig_dbg(level, "%s:%s", tag, dbgline);
 #endif
 }
 
@@ -429,7 +429,7 @@ static inline int hdlc_buildframe(struct isowbuf_t *iwb,
 
 	if (isowbuf_freebytes(iwb) < count + count / 5 + 6 ||
 	    !isowbuf_startwrite(iwb)) {
-		dbg(DEBUG_ISO, "%s: %d bytes free -> -EAGAIN",
+		gig_dbg(DEBUG_ISO, "%s: %d bytes free -> -EAGAIN",
 			__func__, isowbuf_freebytes(iwb));
 		return -EAGAIN;
 	}
@@ -482,11 +482,11 @@ static inline int trans_buildframe(struct isowbuf_t *iwb,
 
 	if (isowbuf_freebytes(iwb) < count ||
 	    !isowbuf_startwrite(iwb)) {
-		dbg(DEBUG_ISO, "can't put %d bytes", count);
+		gig_dbg(DEBUG_ISO, "can't put %d bytes", count);
 		return -EAGAIN;
 	}
 
-	dbg(DEBUG_STREAM, "put %d bytes", count);
+	gig_dbg(DEBUG_STREAM, "put %d bytes", count);
 	write = atomic_read(&iwb->write);
 	do {
 		c = gigaset_invtab[*in++];
@@ -506,12 +506,12 @@ int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len)
 	switch (bcs->proto2) {
 	case ISDN_PROTO_L2_HDLC:
 		result = hdlc_buildframe(bcs->hw.bas->isooutbuf, in, len);
-		dbg(DEBUG_ISO, "%s: %d bytes HDLC -> %d",
+		gig_dbg(DEBUG_ISO, "%s: %d bytes HDLC -> %d",
 			__func__, len, result);
 		break;
 	default:			/* assume transparent */
 		result = trans_buildframe(bcs->hw.bas->isooutbuf, in, len);
-		dbg(DEBUG_ISO, "%s: %d bytes trans -> %d",
+		gig_dbg(DEBUG_ISO, "%s: %d bytes trans -> %d",
 			__func__, len, result);
 	}
 	return result;
@@ -528,7 +528,7 @@ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs)
 		return;
 	}
 	if (unlikely(bcs->skb->len == SBUFSIZE)) {
-		warn("received oversized packet discarded");
+		dev_warn(bcs->cs->dev, "received oversized packet discarded\n");
 		bcs->hw.bas->giants++;
 		dev_kfree_skb_any(bcs->skb);
 		bcs->skb = NULL;
@@ -549,7 +549,7 @@ static inline void hdlc_flush(struct bc_state *bcs)
 		if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
 			skb_reserve(bcs->skb, HW_HDR_LEN);
 		else
-			err("could not allocate skb");
+			dev_err(bcs->cs->dev, "could not allocate skb\n");
 	}
 
 	/* reset packet state */
@@ -571,21 +571,23 @@ static inline void hdlc_done(struct bc_state *bcs)
 
 	if ((procskb = bcs->skb) == NULL) {
 		/* previous error */
-		dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
+		gig_dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
 		gigaset_rcv_error(NULL, bcs->cs, bcs);
 	} else if (procskb->len < 2) {
-		notice("received short frame (%d octets)", procskb->len);
+		dev_notice(bcs->cs->dev, "received short frame (%d octets)\n",
+			   procskb->len);
 		bcs->hw.bas->runts++;
 		gigaset_rcv_error(procskb, bcs->cs, bcs);
 	} else if (bcs->fcs != PPP_GOODFCS) {
-		notice("frame check error (0x%04x)", bcs->fcs);
+		dev_notice(bcs->cs->dev, "frame check error (0x%04x)\n",
+			   bcs->fcs);
 		bcs->hw.bas->fcserrs++;
 		gigaset_rcv_error(procskb, bcs->cs, bcs);
 	} else {
 		procskb->len -= 2;		/* subtract FCS */
 		procskb->tail -= 2;
-		dbg(DEBUG_ISO,
-		    "%s: good frame (%d octets)", __func__, procskb->len);
+		gig_dbg(DEBUG_ISO, "%s: good frame (%d octets)",
+			__func__, procskb->len);
 		dump_bytes(DEBUG_STREAM,
 			   "rcv data", procskb->data, procskb->len);
 		bcs->hw.bas->goodbytes += procskb->len;
@@ -595,7 +597,7 @@ static inline void hdlc_done(struct bc_state *bcs)
 	if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
 		skb_reserve(bcs->skb, HW_HDR_LEN);
 	else
-		err("could not allocate skb");
+		dev_err(bcs->cs->dev, "could not allocate skb\n");
 	bcs->fcs = PPP_INITFCS;
 }
 
@@ -610,14 +612,14 @@ static inline void hdlc_frag(struct bc_state *bcs, unsigned inbits)
 		return;
 	}
 
-	notice("received partial byte (%d bits)", inbits);
+	dev_notice(bcs->cs->dev, "received partial byte (%d bits)\n", inbits);
 	bcs->hw.bas->alignerrs++;
 	gigaset_rcv_error(bcs->skb, bcs->cs, bcs);
 
 	if ((bcs->skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN)) != NULL)
 		skb_reserve(bcs->skb, HW_HDR_LEN);
 	else
-		err("could not allocate skb");
+		dev_err(bcs->cs->dev, "could not allocate skb\n");
 	bcs->fcs = PPP_INITFCS;
 }
 
@@ -870,7 +872,7 @@ static inline void trans_receive(unsigned char *src, unsigned count,
 	if (unlikely((skb = bcs->skb) == NULL)) {
 		bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
 		if (!skb) {
-			err("could not allocate skb");
+			dev_err(bcs->cs->dev, "could not allocate skb\n");
 			return;
 		}
 		skb_reserve(skb, HW_HDR_LEN);
@@ -888,7 +890,8 @@ static inline void trans_receive(unsigned char *src, unsigned count,
 			gigaset_rcv_skb(skb, bcs->cs, bcs);
 			bcs->skb = skb = dev_alloc_skb(SBUFSIZE + HW_HDR_LEN);
 			if (!skb) {
-				err("could not allocate skb");
+				dev_err(bcs->cs->dev,
+					"could not allocate skb\n");
 				return;
 			}
 			skb_reserve(bcs->skb, HW_HDR_LEN);
@@ -921,7 +924,7 @@ static void cmd_loop(unsigned char *src, int numbytes, struct inbuf_t *inbuf)
 		case '\r':
 		case '\n':
 			/* end of line */
-			dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
+			gig_dbg(DEBUG_TRANSCMD, "%s: End of Command (%d Bytes)",
 				__func__, cbytes);
 			cs->cbytes = cbytes;
 			gigaset_handle_modem_response(cs);
@@ -932,7 +935,7 @@ static void cmd_loop(unsigned char *src, int numbytes, struct inbuf_t *inbuf)
 			if (cbytes < MAX_RESP_SIZE - 1)
 				cbytes++;
 			else
-				warn("response too large");
+				dev_warn(cs->dev, "response too large\n");
 		}
 	}
 
@@ -951,12 +954,12 @@ void gigaset_isoc_input(struct inbuf_t *inbuf)
 
 	head = atomic_read(&inbuf->head);
 	while (head != (tail = atomic_read(&inbuf->tail))) {
-		dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
+		gig_dbg(DEBUG_INTR, "buffer state: %u -> %u", head, tail);
 		if (head > tail)
 			tail = RBUFSIZE;
 		src = inbuf->data + head;
 		numbytes = tail - head;
-		dbg(DEBUG_INTR, "processing %u bytes", numbytes);
+		gig_dbg(DEBUG_INTR, "processing %u bytes", numbytes);
 
 		if (atomic_read(&cs->mstate) == MS_LOCKED) {
 			gigaset_dbg_buffer(DEBUG_LOCKCMD, "received response",
@@ -971,7 +974,7 @@ void gigaset_isoc_input(struct inbuf_t *inbuf)
 		head += numbytes;
 		if (head == RBUFSIZE)
 			head = 0;
-		dbg(DEBUG_INTR, "setting head to %u", head);
+		gig_dbg(DEBUG_INTR, "setting head to %u", head);
 		atomic_set(&inbuf->head, head);
 	}
 }
@@ -999,8 +1002,8 @@ int gigaset_isoc_send_skb(struct bc_state *bcs, struct sk_buff *skb)
 	len = skb->len;
 
 	skb_queue_tail(&bcs->squeue, skb);
-	dbg(DEBUG_ISO,
-	    "%s: skb queued, qlen=%d", __func__, skb_queue_len(&bcs->squeue));
+	gig_dbg(DEBUG_ISO, "%s: skb queued, qlen=%d",
+		__func__, skb_queue_len(&bcs->squeue));
 
 	/* tasklet submits URB if necessary */
 	tasklet_schedule(&bcs->hw.bas->sent_tasklet);

drivers/isdn/gigaset/proc.c

@@ -50,7 +50,7 @@ static ssize_t set_cidmode(struct device *dev, struct device_attribute *attr,
 		return -ENOMEM;
 	}
 
-	dbg(DEBUG_CMD, "scheduling PROC_CIDMODE");
+	gig_dbg(DEBUG_CMD, "scheduling PROC_CIDMODE");
 	gigaset_schedule_event(cs);
 
 	wait_event(cs->waitqueue, !cs->waiting);
@@ -65,7 +65,7 @@ static DEVICE_ATTR(cidmode, S_IRUGO|S_IWUSR, show_cidmode, set_cidmode);
 /* free sysfs for device */
 void gigaset_free_dev_sysfs(struct usb_interface *interface)
 {
-	dbg(DEBUG_INIT, "removing sysfs entries");
+	gig_dbg(DEBUG_INIT, "removing sysfs entries");
 	device_remove_file(&interface->dev, &dev_attr_cidmode);
 }
 EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs);
@@ -73,7 +73,7 @@ EXPORT_SYMBOL_GPL(gigaset_free_dev_sysfs);
 /* initialize sysfs for device */
 void gigaset_init_dev_sysfs(struct usb_interface *interface)
 {
-	dbg(DEBUG_INIT, "setting up sysfs");
+	gig_dbg(DEBUG_INIT, "setting up sysfs");
 	device_create_file(&interface->dev, &dev_attr_cidmode);
 }
 EXPORT_SYMBOL_GPL(gigaset_init_dev_sysfs);