SKU fix for 5094

@@ -111,13 +111,15 @@
         uint8_t smbch_uheight;          /* enclosure height */
         uint8_t smbch_cords;            /* number of power cords */
         uint8_t smbch_cn;               /* number of contained records */
         uint8_t smbch_cm;               /* size of contained records */
         uint8_t smbch_cv[1];            /* array of contained records */
-        uint8_t smbch_sku;              /* SKU number */
 } smb_chassis_t;
 
+/* WARNING: the argument is evaluated three times! */
+#define SMB_CH_SKU(smbcp) ((char *) \
+        (smbcp)->smbch_cv + ((smbcp)->smbch_cn * (smbcp)->smbch_cm))
 #define SMB_CHT_LOCK    0x80            /* lock bit within smbch_type */
 
 typedef struct smb_processor {
         smb_header_t smbpr_hdr;         /* structure header */
         uint8_t smbpr_socket;           /* socket designation */