Revert "MIPS: microMIPS: Fix the judgment of mm_jr16_op and mm_jalr_op"

This reverts commit 9308579f.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/kernel/process.c

@@ -326,8 +326,8 @@ static inline int is_jump_ins(union mips_instruction *ip)
 	 * microMIPS is kind of more fun...
 	 */
 	if (mm_insn_16bit(ip->word >> 16)) {
-		if (ip->mm16_r5_format.opcode == mm_pool16c_op &&
-		    ip->mm16_r5_format.rt == mm_jr16_op)
+		if ((ip->mm16_r5_format.opcode == mm_pool16c_op &&
+		    (ip->mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op))
 			return 1;
 		return 0;
 	}
@@ -339,7 +339,7 @@ static inline int is_jump_ins(union mips_instruction *ip)
 	if (ip->r_format.opcode != mm_pool32a_op ||
 			ip->r_format.func != mm_pool32axf_op)
 		return 0;
-	return ((ip->u_format.uimmediate >> 6) & GENMASK(9, 0)) == mm_jalr_op;
+	return ((ip->u_format.uimmediate >> 6) & mm_jalr_op) == mm_jalr_op;
 #else
 	if (ip->j_format.opcode == j_op)
 		return 1;