[PATCH] BUG_ON() Conversion in net/tulip/de2104x.c

hi,

this changes if() BUG(); constructs to BUG_ON() which is
cleaner and can better optimized away

One of the if()s contains a call to de_is_running(),
which seems to be safe to replace, but someone with more
knownledge of the code might want to verify this...

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index d7fb3ffe06acbbf4f85f5b93b7a7c6db0f238b98..d6c3d52d2e866f02758fa27c643b0ca3130fac26 100644 (file)
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -402,8 +402,7 @@ static void de_rx (struct de_private *de)
                unsigned copying_skb, buflen;
 
                skb = de->rx_skb[rx_tail].skb;
-               if (!skb)
-                       BUG();
+               BUG_ON(!skb);
                rmb();
                status = le32_to_cpu(de->rx_ring[rx_tail].opts1);
                if (status & DescOwn)
@@ -545,8 +544,7 @@ static void de_tx (struct de_private *de)
                        break;
 
                skb = de->tx_skb[tx_tail].skb;
-               if (!skb)
-                       BUG();
+               BUG_ON(!skb);
                if (unlikely(skb == DE_DUMMY_SKB))
                        goto next;
 
@@ -789,8 +787,7 @@ static void __de_set_rx_mode (struct net_device *dev)
 
        de->tx_head = NEXT_TX(entry);
 
-       if (TX_BUFFS_AVAIL(de) < 0)
-               BUG();
+       BUG_ON(TX_BUFFS_AVAIL(de) < 0);
        if (TX_BUFFS_AVAIL(de) == 0)
                netif_stop_queue(dev);
 
@@ -916,8 +913,7 @@ static void de_set_media (struct de_private *de)
        unsigned media = de->media_type;
        u32 macmode = dr32(MacMode);
 
-       if (de_is_running(de))
-               BUG();
+       BUG_ON(de_is_running(de));
 
        if (de->de21040)
                dw32(CSR11, FULL_DUPLEX_MAGIC);
@@ -1153,8 +1149,7 @@ static void de_media_interrupt (struct de_private *de, u32 status)
                return;
        }
        
-       if (!(status & LinkFail))
-               BUG();
+       BUG_ON(!(status & LinkFail));
 
        if (netif_carrier_ok(de->dev)) {
                de_link_down(de);
@@ -2092,8 +2087,7 @@ static void __exit de_remove_one (struct pci_dev *pdev)
        struct net_device *dev = pci_get_drvdata(pdev);
        struct de_private *de = dev->priv;
 
-       if (!dev)
-               BUG();
+       BUG_ON(!dev);
        unregister_netdev(dev);
        kfree(de->ee_data);
        iounmap(de->regs);