Use right function prototype for thread function

warning: passing argument from incompatible pointer type

daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap.h

@@ -98,7 +98,8 @@ struct ipa_cldap_req {
     struct kvp_list kvps;
 };
 
-void *ipa_cldap_worker(struct ipa_cldap_ctx *ctx);
+/*void *ipa_cldap_worker(struct ipa_cldap_ctx *ctx);*/
+void *ipa_cldap_worker(void *arg);
 
 int ipa_cldap_netlogon(struct ipa_cldap_ctx *ctx,
                        struct ipa_cldap_req *req,

daemons/ipa-slapi-plugins/ipa-cldap/ipa_cldap_worker.c

@@ -314,11 +314,12 @@ static struct ipa_cldap_req *ipa_cldap_recv_dgram(struct ipa_cldap_ctx *ctx)
     return req;
 }
 
-void *ipa_cldap_worker(struct ipa_cldap_ctx *ctx)
+void *ipa_cldap_worker(void *arg)
 {
     struct ipa_cldap_req *req;
     struct pollfd fds[2];
     bool stop = false;
+    struct ipa_cldap_ctx *ctx = (struct ipa_cldap_ctx *) arg;
     int ret;
 
     while (!stop) {