1 files changed, 12 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/lib/py/ksft.py b/tools/testing/selftests/net/lib/py/ksft.py
index 793e4761645e..3769b9197213 100644
--- a/tools/testing/selftests/net/lib/py/ksft.py
+++ b/tools/testing/selftests/net/lib/py/ksft.py
@@ -2,6 +2,7 @@
 
 import builtins
 import inspect
+import time
 import traceback
 from .consts import KSFT_MAIN_NAME
 
@@ -50,6 +51,17 @@ def ksft_ge(a, b, comment=""):
         _fail("Check failed", a, "<", b, comment)
 
 
+def ksft_busy_wait(cond, sleep=0.005, deadline=1, comment=""):
+    end = time.monotonic() + deadline
+    while True:
+        if cond():
+            return
+        if time.monotonic() > end:
+            _fail("Waiting for condition timed out", comment)
+            return
+        time.sleep(sleep)
+
+
 def ktap_result(ok, cnt=1, case="", comment=""):
     res = ""
     if not ok: