diff --git a/tests/libtest/lib503.c b/tests/libtest/lib503.c
index 25a641548..53f8f807b 100644
--- a/tests/libtest/lib503.c
+++ b/tests/libtest/lib503.c
@@ -103,18 +103,17 @@ int test(char *URL)
     mp_timedout = FALSE;
     mp_start = tutil_tvnow();
 
-    while (res == CURLM_CALL_MULTI_PERFORM) {
-      res = (int)curl_multi_perform(m, &running);
-      if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-          MULTI_PERFORM_HANG_TIMEOUT) {
-        mp_timedout = TRUE;
-        break;
-      }
-      if (running <= 0) {
-        done = TRUE;
-        break;
-      }
+    res = (int)curl_multi_perform(m, &running);
+    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+        MULTI_PERFORM_HANG_TIMEOUT) {
+      mp_timedout = TRUE;
+      break;
     }
+    if (running <= 0) {
+      done = TRUE;
+      break;
+    }
+
     if (mp_timedout || done)
       break;
 
@@ -140,7 +139,6 @@ int test(char *URL)
       break;
     }
 
-    res = CURLM_CALL_MULTI_PERFORM;
   }
 
   if (ml_timedout || mp_timedout) {
diff --git a/tests/libtest/lib504.c b/tests/libtest/lib504.c
index f45ac256b..e83c66167 100644
--- a/tests/libtest/lib504.c
+++ b/tests/libtest/lib504.c
@@ -106,15 +106,11 @@ int test(char *URL)
 
     fprintf(stderr, "curl_multi_perform()\n");
 
-    ret = CURLM_CALL_MULTI_PERFORM;
-
-    while (ret == CURLM_CALL_MULTI_PERFORM) {
-      ret = curl_multi_perform(m, &running);
-      if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-          MULTI_PERFORM_HANG_TIMEOUT) {
-        mp_timedout = TRUE;
-        break;
-      }
+    ret = curl_multi_perform(m, &running);
+    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+        MULTI_PERFORM_HANG_TIMEOUT) {
+      mp_timedout = TRUE;
+      break;
     }
     if (mp_timedout)
       break;
diff --git a/tests/libtest/lib507.c b/tests/libtest/lib507.c
index c5a009d8c..e4a1b241b 100644
--- a/tests/libtest/lib507.c
+++ b/tests/libtest/lib507.c
@@ -75,14 +75,10 @@ int test(char *URL)
   mp_timedout = FALSE;
   mp_start = tutil_tvnow();
 
-  do {
-    ret = curl_multi_perform(multi, &still_running);
-    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-        MULTI_PERFORM_HANG_TIMEOUT) {
-      mp_timedout = TRUE;
-      break;
-    }
-  } while (ret == CURLM_CALL_MULTI_PERFORM);
+  ret = curl_multi_perform(multi, &still_running);
+  if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+      MULTI_PERFORM_HANG_TIMEOUT)
+    mp_timedout = TRUE;
 
   ml_timedout = FALSE;
   ml_start = tutil_tvnow();
@@ -116,20 +112,18 @@ int test(char *URL)
       default:
         mp_timedout = FALSE;
         mp_start = tutil_tvnow();
-        do {
-          ret = curl_multi_perform(multi, &still_running);
-          if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-              MULTI_PERFORM_HANG_TIMEOUT) {
-            mp_timedout = TRUE;
-            break;
-          }
-        } while (ret == CURLM_CALL_MULTI_PERFORM);
+        ret = curl_multi_perform(multi, &still_running);
+        if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+            MULTI_PERFORM_HANG_TIMEOUT)
+          mp_timedout = TRUE;
         break;
     }
   }
   if (ml_timedout || mp_timedout) {
-    if (ml_timedout) fprintf(stderr, "ml_timedout\n");
-    if (mp_timedout) fprintf(stderr, "mp_timedout\n");
+    if (ml_timedout)
+      fprintf(stderr, "ml_timedout\n");
+    if (mp_timedout)
+      fprintf(stderr, "mp_timedout\n");
     fprintf(stderr, "ABORTING TEST, since it seems "
             "that it would have run forever.\n");
     i = TEST_ERR_RUNS_FOREVER;
diff --git a/tests/libtest/lib525.c b/tests/libtest/lib525.c
index f034050eb..4a79cecc2 100644
--- a/tests/libtest/lib525.c
+++ b/tests/libtest/lib525.c
@@ -151,20 +151,16 @@ int test(char *URL)
     mp_timedout = FALSE;
     mp_start = tutil_tvnow();
 
-    while (res == CURLM_CALL_MULTI_PERFORM) {
-      res = (int)curl_multi_perform(m, &running);
-      if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-          MULTI_PERFORM_HANG_TIMEOUT) {
-        mp_timedout = TRUE;
-        break;
-      }
-      if (running <= 0) {
-        done = TRUE;
-        break;
-      }
-    }
-    if (mp_timedout || done)
+    res = (int)curl_multi_perform(m, &running);
+    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+        MULTI_PERFORM_HANG_TIMEOUT) {
+      mp_timedout = TRUE;
       break;
+    }
+    if (running <= 0) {
+      done = TRUE;
+      break;
+    }
 
     if (res != CURLM_OK) {
       fprintf(stderr, "not okay???\n");
diff --git a/tests/libtest/lib526.c b/tests/libtest/lib526.c
index a0085ec3c..e73eab029 100644
--- a/tests/libtest/lib526.c
+++ b/tests/libtest/lib526.c
@@ -149,50 +149,47 @@ int test(char *URL)
     mp_timedout = FALSE;
     mp_start = tutil_tvnow();
 
-    while (res == CURLM_CALL_MULTI_PERFORM) {
-      res = (int)curl_multi_perform(m, &running);
-      if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-          MULTI_PERFORM_HANG_TIMEOUT) {
-        mp_timedout = TRUE;
-        break;
-      }
-      if (running <= 0) {
+    res = (int)curl_multi_perform(m, &running);
+    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+        MULTI_PERFORM_HANG_TIMEOUT) {
+      mp_timedout = TRUE;
+      break;
+    }
+    if (running <= 0) {
 #ifdef LIB527
-        /* NOTE: this code does not remove the handle from the multi handle
-           here, which would be the nice, sane and documented way of working.
-           This however tests that the API survives this abuse gracefully. */
-        curl_easy_cleanup(curl[current]);
+      /* NOTE: this code does not remove the handle from the multi handle
+         here, which would be the nice, sane and documented way of working.
+         This however tests that the API survives this abuse gracefully. */
+      curl_easy_cleanup(curl[current]);
 #endif
-        if(++current < NUM_HANDLES) {
-          fprintf(stderr, "Advancing to URL %d\n", current);
+      if(++current < NUM_HANDLES) {
+        fprintf(stderr, "Advancing to URL %d\n", current);
 #ifdef LIB532
-          /* first remove the only handle we use */
-          curl_multi_remove_handle(m, curl[0]);
+        /* first remove the only handle we use */
+        curl_multi_remove_handle(m, curl[0]);
 
-          /* make us re-use the same handle all the time, and try resetting
-             the handle first too */
-          curl_easy_reset(curl[0]);
-          test_setopt(curl[0], CURLOPT_URL, URL);
-          test_setopt(curl[0], CURLOPT_VERBOSE, 1L);
+        /* make us re-use the same handle all the time, and try resetting
+           the handle first too */
+        curl_easy_reset(curl[0]);
+        test_setopt(curl[0], CURLOPT_URL, URL);
+        test_setopt(curl[0], CURLOPT_VERBOSE, 1L);
 
-          /* re-add it */
-          res = (int)curl_multi_add_handle(m, curl[0]);
+        /* re-add it */
+        res = (int)curl_multi_add_handle(m, curl[0]);
 #else
-          res = (int)curl_multi_add_handle(m, curl[current]);
+        res = (int)curl_multi_add_handle(m, curl[current]);
 #endif
-          if(res) {
-            fprintf(stderr, "add handle failed: %d.\n", res);
-            res = 243;
-            break;
-          }
+        if(res) {
+          fprintf(stderr, "add handle failed: %d.\n", res);
+          res = 243;
+          break;
         }
-        else
-          done = TRUE; /* bail out */
+      }
+      else {
+        done = TRUE; /* bail out */
         break;
       }
     }
-    if (mp_timedout || done)
-      break;
 
     if (res != CURLM_OK) {
       fprintf(stderr, "not okay???\n");
@@ -215,8 +212,6 @@ int test(char *URL)
       res = 195;
       break;
     }
-
-    res = CURLM_CALL_MULTI_PERFORM;
   }
 
   if (ml_timedout || mp_timedout) {
diff --git a/tests/libtest/lib530.c b/tests/libtest/lib530.c
index add64ea31..6ad946f2d 100644
--- a/tests/libtest/lib530.c
+++ b/tests/libtest/lib530.c
@@ -161,20 +161,16 @@ int test(char *URL)
     mp_timedout = FALSE;
     mp_start = tutil_tvnow();
 
-    while (res == CURLM_CALL_MULTI_PERFORM) {
-      res = (int)curl_multi_perform(m, &running);
-      if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-          MULTI_PERFORM_HANG_TIMEOUT) {
-        mp_timedout = TRUE;
-        break;
-      }
-      if (running <= 0) {
-        done = TRUE; /* bail out */
-        break;
-      }
-    }
-    if (mp_timedout || done)
+    res = (int)curl_multi_perform(m, &running);
+    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+        MULTI_PERFORM_HANG_TIMEOUT) {
+      mp_timedout = TRUE;
       break;
+    }
+    if (running <= 0) {
+      done = TRUE; /* bail out */
+      break;
+    }
 
     if (res != CURLM_OK) {
       fprintf(stderr, "not okay???\n");
diff --git a/tests/libtest/lib533.c b/tests/libtest/lib533.c
index 606eba75c..5b6d8bf73 100644
--- a/tests/libtest/lib533.c
+++ b/tests/libtest/lib533.c
@@ -99,41 +99,38 @@ int test(char *URL)
     mp_timedout = FALSE;
     mp_start = tutil_tvnow();
 
-    while (res == CURLM_CALL_MULTI_PERFORM) {
-      res = (int)curl_multi_perform(m, &running);
-      if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-          MULTI_PERFORM_HANG_TIMEOUT) {
-        mp_timedout = TRUE;
-        break;
-      }
-      if (running <= 0) {
-        if(!current++) {
-          fprintf(stderr, "Advancing to URL 1\n");
-          /* remove the handle we use */
-          curl_multi_remove_handle(m, curl);
+    res = (int)curl_multi_perform(m, &running);
+    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+        MULTI_PERFORM_HANG_TIMEOUT) {
+      mp_timedout = TRUE;
+      break;
+    }
+    if (running <= 0) {
+      if(!current++) {
+        fprintf(stderr, "Advancing to URL 1\n");
+        /* remove the handle we use */
+        curl_multi_remove_handle(m, curl);
 
-          /* make us re-use the same handle all the time, and try resetting
-             the handle first too */
-          curl_easy_reset(curl);
-          test_setopt(curl, CURLOPT_URL, libtest_arg2);
-          test_setopt(curl, CURLOPT_VERBOSE, 1);
-          test_setopt(curl, CURLOPT_FAILONERROR, 1);
+        /* make us re-use the same handle all the time, and try resetting
+           the handle first too */
+        curl_easy_reset(curl);
+        test_setopt(curl, CURLOPT_URL, libtest_arg2);
+        test_setopt(curl, CURLOPT_VERBOSE, 1);
+        test_setopt(curl, CURLOPT_FAILONERROR, 1);
 
-          /* re-add it */
-          res = (int)curl_multi_add_handle(m, curl);
-          if(res) {
-            fprintf(stderr, "add handle failed: %d.\n", res);
-            res = 243;
-            break;
-          }
+        /* re-add it */
+        res = (int)curl_multi_add_handle(m, curl);
+        if(res) {
+          fprintf(stderr, "add handle failed: %d.\n", res);
+          res = 243;
+          break;
         }
-        else
-          done = TRUE; /* bail out */
+      }
+      else {
+        done = TRUE; /* bail out */
         break;
       }
     }
-    if (mp_timedout || done)
-      break;
 
     if (res != CURLM_OK) {
       fprintf(stderr, "not okay???\n");
diff --git a/tests/libtest/lib536.c b/tests/libtest/lib536.c
index dca880cea..7e81351c9 100644
--- a/tests/libtest/lib536.c
+++ b/tests/libtest/lib536.c
@@ -59,8 +59,6 @@ static CURLMcode perform(CURLM * multi)
     switch (code) {
       case CURLM_OK:
         break;
-      case CURLM_CALL_MULTI_PERFORM:
-        continue;
       default:
         return code;
     }
diff --git a/tests/libtest/lib540.c b/tests/libtest/lib540.c
index 55457dd46..6647ab399 100644
--- a/tests/libtest/lib540.c
+++ b/tests/libtest/lib540.c
@@ -87,9 +87,7 @@ static int loop(CURLM *cm, const char* url, const char* userpwd,
 
   while (U) {
 
-    do {
-      code = curl_multi_perform(cm, &U);
-    } while (code == CURLM_CALL_MULTI_PERFORM);
+    code = curl_multi_perform(cm, &U);
 
     if (U) {
       FD_ZERO(&R);
diff --git a/tests/libtest/lib560.c b/tests/libtest/lib560.c
index e375be535..851d5d193 100644
--- a/tests/libtest/lib560.c
+++ b/tests/libtest/lib560.c
@@ -63,9 +63,7 @@ int test(char *URL)
   curl_multi_add_handle(multi_handle, http_handle);
 
   /* we start some action by calling perform right away */
-  do {
-    code = curl_multi_perform(multi_handle, &still_running);
-  } while(code == CURLM_CALL_MULTI_PERFORM);
+  code = curl_multi_perform(multi_handle, &still_running);
 
   while(still_running) {
     struct timeval timeout;
@@ -100,9 +98,7 @@ int test(char *URL)
     case 0:
     default:
       /* timeout or readable/writable sockets */
-      do {
-        code = curl_multi_perform(multi_handle, &still_running);
-      } while(code == CURLM_CALL_MULTI_PERFORM);
+      code = curl_multi_perform(multi_handle, &still_running);
       break;
     }
   }
diff --git a/tests/libtest/lib564.c b/tests/libtest/lib564.c
index d831d21e1..96504bd3d 100644
--- a/tests/libtest/lib564.c
+++ b/tests/libtest/lib564.c
@@ -98,20 +98,16 @@ int test(char *URL)
     mp_timedout = FALSE;
     mp_start = tutil_tvnow();
 
-    while (res == CURLM_CALL_MULTI_PERFORM) {
-      res = (int)curl_multi_perform(m, &running);
-      if (tutil_tvdiff(tutil_tvnow(), mp_start) >
-          MULTI_PERFORM_HANG_TIMEOUT) {
-        mp_timedout = TRUE;
-        break;
-      }
-      if (running <= 0) {
-        done = TRUE; /* bail out */
-        break;
-      }
-    }
-    if (mp_timedout || done)
+    res = (int)curl_multi_perform(m, &running);
+    if (tutil_tvdiff(tutil_tvnow(), mp_start) >
+        MULTI_PERFORM_HANG_TIMEOUT) {
+      mp_timedout = TRUE;
       break;
+    }
+    if (running <= 0) {
+      done = TRUE; /* bail out */
+      break;
+    }
 
     if (res != CURLM_OK) {
       fprintf(stderr, "not okay???\n");
@@ -134,8 +130,6 @@ int test(char *URL)
       res = 195;
       break;
     }
-
-    res = CURLM_CALL_MULTI_PERFORM;
   }
 
   if (ml_timedout || mp_timedout) {
diff --git a/tests/libtest/lib575.c b/tests/libtest/lib575.c
index 4d0b16576..bb84b1a1c 100644
--- a/tests/libtest/lib575.c
+++ b/tests/libtest/lib575.c
@@ -81,8 +81,7 @@ int test(char *URL)
 
   curl_multi_add_handle(mhandle, handle);
 
-  while(CURLM_CALL_MULTI_PERFORM ==
-        curl_multi_perform(mhandle, &still_running));
+  curl_multi_perform(mhandle, &still_running);
 
   while(still_running) {
     static struct timeval timeout = /* 100 ms */ { 0, 100000L };
@@ -108,8 +107,7 @@ int test(char *URL)
       goto test_cleanup;
     }
     else {
-      while(CURLM_CALL_MULTI_PERFORM ==
-          curl_multi_perform(mhandle, &still_running));
+      curl_multi_perform(mhandle, &still_running);
     }
   }
 
diff --git a/tests/libtest/lib582.c b/tests/libtest/lib582.c
index 3b7f1afee..2f8fcd992 100644
--- a/tests/libtest/lib582.c
+++ b/tests/libtest/lib582.c
@@ -182,8 +182,7 @@ static void notifyCurl(CURL* curl, curl_socket_t s, int evBitmask,
 {
   int numhandles = 0;
   CURLMcode result = curl_multi_socket_action(curl, s, evBitmask, &numhandles);
-  if (result != CURLM_OK && result != CURLM_CALL_MULTI_PERFORM)
-  {
+  if (result != CURLM_OK) {
     fprintf(stderr, "Curl error on %s: %i (%s)\n",
             info, result, curl_multi_strerror(result));
   }
@@ -196,10 +195,8 @@ static void checkFdSet(CURL* curl, struct Sockets* sockets, fd_set* fdset,
                        int evBitmask, const char* name)
 {
   int i;
-  for (i = 0; i < sockets->count; ++i)
-  {
-    if (FD_ISSET(sockets->sockets[i], fdset))
-    {
+  for (i = 0; i < sockets->count; ++i) {
+    if (FD_ISSET(sockets->sockets[i], fdset)) {
       notifyCurl(curl, sockets->sockets[i], evBitmask, name);
     }
   }