+static void
+parse_reg_value(struct cls_rule *rule, int reg_idx, const char *value)
+{
+ uint32_t reg_value, reg_mask;
+
+ if (!strcmp(value, "ANY") || !strcmp(value, "*")) {
+ cls_rule_set_reg_masked(rule, reg_idx, 0, 0);
+ } else if (sscanf(value, "%"SCNi32"/%"SCNi32,
+ ®_value, ®_mask) == 2) {
+ cls_rule_set_reg_masked(rule, reg_idx, reg_value, reg_mask);
+ } else if (sscanf(value, "%"SCNi32, ®_value)) {
+ cls_rule_set_reg(rule, reg_idx, reg_value);
+ } else {
+ ovs_fatal(0, "register fields must take the form <value> "
+ "or <value>/<mask>");
+ }
+}
+