#define PPC_INST_WAIT 0x7c00007c
/* macros to insert fields into opcodes */
-#define __PPC_RA(a) ((a & 0x1f) << 16)
-#define __PPC_RB(b) ((b & 0x1f) << 11)
-#define __PPC_T_TLB(t) ((t & 0x3) << 21)
-#define __PPC_WC(w) ((w & 0x3) << 21)
+#define __PPC_RA(a) (((a) & 0x1f) << 16)
+#define __PPC_RB(b) (((b) & 0x1f) << 11)
+#define __PPC_T_TLB(t) (((t) & 0x3) << 21)
+#define __PPC_WC(w) (((w) & 0x3) << 21)
/* Deal with instructions that older assemblers aren't aware of */
#define PPC_DCBAL(a, b) stringify_in_c(.long PPC_INST_DCBAL | \