sk98lin: kill bogus check and convert to use ARRAY_SIZE()

This converts uses of ARRAY_SIZE(), and while at it also kills
unreachable code as far as I can say. I can't tell what was the author
trying to do with the following check. First we have:

PNMI_STATIC const SK_PNMI_STATADDR
		StatAddr[SK_PNMI_MAX_IDX][SK_PNMI_MAC_TYPES];

and then a check goes like this:

if (SK_PNMI_MAX_IDX !=
   (sizeof(StatAddr) / (sizeof(SK_PNMI_STATADDR) * SK_PNMI_MAC_TYPES)))

with the second line being just ARRAY_SIZE(StatAddr), which will always
return SK_PNMI_MAX_IDX, rendering the check useless.

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/sk98lin/skgemib.c

@@ -82,7 +82,7 @@ PNMI_STATIC int DiagActions(SK_AC *pAC, SK_IOC IoC, int action, SK_U32 Id,
 
 
 /* defines *******************************************************************/
-#define ID_TABLE_SIZE (sizeof(IdTable)/sizeof(IdTable[0]))
+#define ID_TABLE_SIZE	ARRAY_SIZE(IdTable)
 
 
 /* global variables **********************************************************/

drivers/net/sk98lin/skgepnmi.c

@@ -388,18 +388,6 @@ int Level)		/* Initialization level */
 						SK_PNMI_CNT_NO, SK_PNMI_MAX_IDX));
 		}
 
-		if (SK_PNMI_MAX_IDX !=
-			(sizeof(StatAddr) / (sizeof(SK_PNMI_STATADDR) * SK_PNMI_MAC_TYPES))) {
-
-			SK_ERR_LOG(pAC, SK_ERRCL_SW, SK_PNMI_ERR050, SK_PNMI_ERR050MSG);
-
-			SK_DBG_MSG(pAC, SK_DBGMOD_PNMI, SK_DBGCAT_INIT | SK_DBGCAT_FATAL,
-					   ("StatAddr table size (%d) differs from "
-						"SK_PNMI_MAX_IDX (%d)\n",
-						(sizeof(StatAddr) /
-						 (sizeof(SK_PNMI_STATADDR) * SK_PNMI_MAC_TYPES)),
-						 SK_PNMI_MAX_IDX));
-		}
 #endif /* SK_PNMI_CHECK */
 		break;
 

drivers/net/sk98lin/skgesirq.c

@@ -892,7 +892,7 @@ int		Port)		/* Which port should be checked */
 	 */
 	RxCts = 0;
 
-	for (i = 0; i < sizeof(SkGeRxRegs)/sizeof(SkGeRxRegs[0]); i++) {
+	for (i = 0; i < ARRAY_SIZE(SkGeRxRegs); i++) {
 
 		(void)SkXmMacStatistic(pAC, IoC, Port, SkGeRxRegs[i], &RxTmp);