pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (net)

Convert PCMCIA drivers to use the dynamic debug infrastructure, instead of
requiring manual settings of PCMCIA_DEBUG. Only some rare debug checks are
now hidden behind "#ifdef DEBUG" or "#if 0".

Also, remove all usages of the CS_CHECK macro and replace them with proper
Linux style calling and return value checking. The extra error reporting may
be dropped, as the PCMCIA core already complains about any (non-driver-author)
errors.

CC: netdev@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 25 insertions, 50 deletions

diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c
index fc6123ea6fa7..6eac62b7143c 100644
--- a/drivers/net/pcmcia/3c589_cs.c
+++ b/drivers/net/pcmcia/3c589_cs.c
@@ -130,14 +130,6 @@ MODULE_LICENSE("GPL");
 /* Special hook for setting if_port when module is loaded */
 INT_MODULE_PARM(if_port, 0);
 
-#ifdef PCMCIA_DEBUG
-INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
-#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
-static char *version =
-DRV_NAME ".c " DRV_VERSION " 2001/10/13 00:08:50 (David Hinds)";
-#else
-#define DEBUG(n, args...)
-#endif
 
 /*====================================================================*/
 
@@ -189,7 +181,7 @@ static int tc589_probe(struct pcmcia_device *link)
     struct el3_private *lp;
     struct net_device *dev;
 
-    DEBUG(0, "3c589_attach()\n");
+    dev_dbg(&link->dev, "3c589_attach()\n");
 
     /* Create new ethernet device */
     dev = alloc_etherdev(sizeof(struct el3_private));
@@ -231,7 +223,7 @@ static void tc589_detach(struct pcmcia_device *link)
 {
     struct net_device *dev = link->priv;
 
-    DEBUG(0, "3c589_detach(0x%p)\n", link);
+    dev_dbg(&link->dev, "3c589_detach\n");
 
     if (link->dev_node)
         unregister_netdev(dev);
@@ -249,21 +241,18 @@ static void tc589_detach(struct pcmcia_device *link)
     
 ======================================================================*/
 
-#define CS_CHECK(fn, ret) \
-do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
-
 static int tc589_config(struct pcmcia_device *link)
 {
     struct net_device *dev = link->priv;
     struct el3_private *lp = netdev_priv(dev);
     __be16 *phys_addr;
-    int last_fn, last_ret, i, j, multi = 0, fifo;
+    int ret, i, j, multi = 0, fifo;
     unsigned int ioaddr;
     char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
     u8 *buf;
     size_t len;
     
-    DEBUG(0, "3c589_config(0x%p)\n", link);
+    dev_dbg(&link->dev, "3c589_config\n");
 
     phys_addr = (__be16 *)dev->dev_addr;
     /* Is this a 3c562? */
@@ -281,12 +270,16 @@ static int tc589_config(struct pcmcia_device *link)
         if (i == 0)
                 break;
     }
-    if (i != 0) {
-        cs_error(link, RequestIO, i);
+    if (i != 0)
         goto failed;
-    }
-    CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
-    CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
+
+    ret = pcmcia_request_irq(link, &link->irq);
+    if (ret)
+            goto failed;
+
+    ret = pcmcia_request_configuration(link, &link->conf);
+    if (ret)
+            goto failed;
         
     dev->irq = link->irq.AssignedIRQ;
     dev->base_addr = link->io.BasePort1;
@@ -342,8 +335,6 @@ static int tc589_config(struct pcmcia_device *link)
            if_names[dev->if_port]);
     return 0;
 
-cs_failed:
-    cs_error(link, last_fn, last_ret);
 failed:
     tc589_release(link);
     return -ENODEV;
@@ -506,24 +497,8 @@ static void netdev_get_drvinfo(struct net_device *dev,
         sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
 }
 
-#ifdef PCMCIA_DEBUG
-static u32 netdev_get_msglevel(struct net_device *dev)
-{
-        return pc_debug;
-}
-
-static void netdev_set_msglevel(struct net_device *dev, u32 level)
-{
-        pc_debug = level;
-}
-#endif /* PCMCIA_DEBUG */
-
 static const struct ethtool_ops netdev_ethtool_ops = {
         .get_drvinfo            = netdev_get_drvinfo,
-#ifdef PCMCIA_DEBUG
-        .get_msglevel           = netdev_get_msglevel,
-        .set_msglevel           = netdev_set_msglevel,
-#endif /* PCMCIA_DEBUG */
 };
 
 static int el3_config(struct net_device *dev, struct ifmap *map)
@@ -558,7 +533,7 @@ static int el3_open(struct net_device *dev)
     lp->media.expires = jiffies + HZ;
     add_timer(&lp->media);
 
-    DEBUG(1, "%s: opened, status %4.4x.\n",
+    dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
           dev->name, inw(dev->base_addr + EL3_STATUS));
     
     return 0;
@@ -591,7 +566,7 @@ static void pop_tx_status(struct net_device *dev)
         if (tx_status & 0x30)
             tc589_wait_for_completion(dev, TxReset);
         if (tx_status & 0x38) {
-            DEBUG(1, "%s: transmit error: status 0x%02x\n",
+            pr_debug("%s: transmit error: status 0x%02x\n",
                   dev->name, tx_status);
             outw(TxEnable, ioaddr + EL3_CMD);
             dev->stats.tx_aborted_errors++;
@@ -607,7 +582,7 @@ static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
     struct el3_private *priv = netdev_priv(dev);
     unsigned long flags;
 
-    DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
+    pr_debug("%s: el3_start_xmit(length = %ld) called, "
           "status %4.4x.\n", dev->name, (long)skb->len,
           inw(ioaddr + EL3_STATUS));
 
@@ -649,14 +624,14 @@ static irqreturn_t el3_interrupt(int irq, void *dev_id)
 
     ioaddr = dev->base_addr;
 
-    DEBUG(3, "%s: interrupt, status %4.4x.\n",
+    pr_debug("%s: interrupt, status %4.4x.\n",
           dev->name, inw(ioaddr + EL3_STATUS));
 
     spin_lock(&lp->lock);    
     while ((status = inw(ioaddr + EL3_STATUS)) &
         (IntLatch | RxComplete | StatsFull)) {
         if ((status & 0xe000) != 0x2000) {
-            DEBUG(1, "%s: interrupt from dead card\n", dev->name);
+            pr_debug("%s: interrupt from dead card\n", dev->name);
             handled = 0;
             break;
         }
@@ -665,7 +640,7 @@ static irqreturn_t el3_interrupt(int irq, void *dev_id)
             el3_rx(dev);
         
         if (status & TxAvailable) {
-            DEBUG(3, "    TX room bit was handled.\n");
+            pr_debug("    TX room bit was handled.\n");
             /* There's room in the FIFO for a full-sized packet. */
             outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
             netif_wake_queue(dev);
@@ -717,7 +692,7 @@ static irqreturn_t el3_interrupt(int irq, void *dev_id)
 
     lp->last_irq = jiffies;
     spin_unlock(&lp->lock);    
-    DEBUG(3, "%s: exiting interrupt, status %4.4x.\n",
+    pr_debug("%s: exiting interrupt, status %4.4x.\n",
           dev->name, inw(ioaddr + EL3_STATUS));
     return IRQ_RETVAL(handled);
 }
@@ -828,7 +803,7 @@ static void update_stats(struct net_device *dev)
 {
     unsigned int ioaddr = dev->base_addr;
 
-    DEBUG(2, "%s: updating the statistics.\n", dev->name);
+    pr_debug("%s: updating the statistics.\n", dev->name);
     /* Turn off statistics updates while reading. */
     outw(StatsDisable, ioaddr + EL3_CMD);
     /* Switch to the stats window, and read everything. */
@@ -856,7 +831,7 @@ static int el3_rx(struct net_device *dev)
     int worklimit = 32;
     short rx_status;
     
-    DEBUG(3, "%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
+    pr_debug("%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
           dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
     while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
                     worklimit > 0) {
@@ -878,7 +853,7 @@ static int el3_rx(struct net_device *dev)
             
             skb = dev_alloc_skb(pkt_len+5);
             
-            DEBUG(3, "    Receiving packet size %d status %4.4x.\n",
+            pr_debug("    Receiving packet size %d status %4.4x.\n",
                   pkt_len, rx_status);
             if (skb != NULL) {
                 skb_reserve(skb, 2);
@@ -889,7 +864,7 @@ static int el3_rx(struct net_device *dev)
                 dev->stats.rx_packets++;
                 dev->stats.rx_bytes += pkt_len;
             } else {
-                DEBUG(1, "%s: couldn't allocate a sk_buff of"
+                pr_debug("%s: couldn't allocate a sk_buff of"
                       " size %d.\n", dev->name, pkt_len);
                 dev->stats.rx_dropped++;
             }
@@ -930,7 +905,7 @@ static int el3_close(struct net_device *dev)
     struct pcmcia_device *link = lp->p_dev;
     unsigned int ioaddr = dev->base_addr;
     
-    DEBUG(1, "%s: shutting down ethercard.\n", dev->name);
+    dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
 
     if (pcmcia_dev_present(link)) {
         /* Turn off statistics ASAP.  We update dev->stats below. */