e1000e: consolidate two dbug macros into one simpler one

This patch depends on a previous one that cleans up redundant #includes.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/e1000e/e1000.h

@@ -48,9 +48,9 @@ struct e1000_info;
 
 #ifdef DEBUG
 #define e_dbg(format, arg...) \
-	e_printk(KERN_DEBUG , adapter, format, ## arg)
+	e_printk(KERN_DEBUG , hw->adapter, format, ## arg)
 #else
-#define e_dbg(format, arg...) do { (void)(adapter); } while (0)
+#define e_dbg(format, arg...) do { (void)(hw); } while (0)
 #endif
 
 #define e_err(format, arg...) \