if (sp >= (long)CKSEG0 && sp < (long)CKSEG2)
                usp = CKSEG1ADDR(sp);
+#ifdef CONFIG_64BIT
        else if ((long long)sp >= (long long)PHYS_TO_XKPHYS(0LL, 0) &&
                 (long long)sp < (long long)PHYS_TO_XKPHYS(8LL, 0))
                usp = PHYS_TO_XKPHYS((long long)K_CALG_UNCACHED,
                                     XKPHYS_TO_PHYS((long long)sp));
+#endif
        else {
                BUG();
                usp = sp;
        }
        if (lfunc >= (long)CKSEG0 && lfunc < (long)CKSEG2)
                ufunc = CKSEG1ADDR(lfunc);
+#ifdef CONFIG_64BIT
        else if ((long long)lfunc >= (long long)PHYS_TO_XKPHYS(0LL, 0) &&
                 (long long)lfunc < (long long)PHYS_TO_XKPHYS(8LL, 0))
                ufunc = PHYS_TO_XKPHYS((long long)K_CALG_UNCACHED,
                                       XKPHYS_TO_PHYS((long long)lfunc));
+#endif
        else {
                BUG();
                ufunc = lfunc;