diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index d0cc1bad3..7c68cab3f 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -91,8 +91,8 @@ def CommonChecks(input_api, output_api, tests_to_skip_list, run_on_python3):
       input_api,
       output_api,
       'tests',
-      allowlist=test_to_run_list,
-      blocklist=tests_to_skip_list,
+      files_to_check=test_to_run_list,
+      files_to_skip=tests_to_skip_list,
       run_on_python3=run_on_python3))
 
   # Validate CIPD manifests.
diff --git a/presubmit_canned_checks.py b/presubmit_canned_checks.py
index 59a32386d..5b41bb72c 100644
--- a/presubmit_canned_checks.py
+++ b/presubmit_canned_checks.py
@@ -7,6 +7,7 @@
 from __future__ import print_function
 
 import os as _os
+from warnings import warn
 _HERE = _os.path.dirname(_os.path.abspath(__file__))
 
 # These filters will be disabled if callers do not explicitly supply a
@@ -108,8 +109,9 @@ def CheckAuthorizedAuthor(input_api, output_api, bot_allowlist=None,
   """For non-googler/chromites committers, verify the author's email address is
   in AUTHORS.
   """
-  # TODO(https://crbug.com/1098560): Add warnings before removing BC.
+  # TODO(https://crbug.com/1098560): Remove non inclusive parameter names.
   if bot_allowlist is None:
+    warn('Use bot_allowlist in CheckAuthorizedAuthor')
     bot_allowlist = bot_whitelist
   if input_api.is_committing:
     error_type = output_api.PresubmitError
@@ -624,10 +626,12 @@ def GetUnitTestsInDirectory(
   It's mainly a wrapper for RunUnitTests. Use allowlist and blocklist to filter
   tests accordingly.
   """
-  # TODO(https://crbug.com/1098560): Add warnings before removing bc.
+  # TODO(https://crbug.com/1098560): Remove non inclusive parameter names.
   if files_to_check is None:
+    warn('Use files_to_check in GetUnitTestsInDirectory')
     files_to_check = allowlist or whitelist
   if files_to_skip is None:
+    warn('Use files_to_skip in GetUnitTestsInDirectory')
     files_to_skip = blocklist or blacklist
 
   unit_tests = []
@@ -722,10 +726,12 @@ def GetUnitTestsRecursively(input_api, output_api, directory,
   Restricts itself to only find files within the Change's source repo, not
   dependencies.
   """
-  # TODO(https://crbug.com/1098560): Add warnings before removing BC.
+  # TODO(https://crbug.com/1098560): Remove non inclusive parameter names.
   if files_to_check is None:
+    warn('Use files_to_check in GetUnitTestsRecursively')
     files_to_check = allowlist or whitelist
   if files_to_skip is None:
+    warn('Use files_to_skip in GetUnitTestsRecursively')
     files_to_skip = blocklist or blacklist
   assert files_to_check is not None
   assert files_to_skip is not None
@@ -870,6 +876,13 @@ def GetPylint(input_api, output_api, files_to_check=None, files_to_skip=None,
 
   The default files_to_check enforces looking only at *.py files.
   """
+
+  # TODO(https://crbug.com/1098560): Remove non inclusive parameter names.
+  if allow_list or white_list:
+    warn('Use files_to_check in GetPylint')
+  if block_list or black_list:
+    warn('Use files_to_skip in GetPylint')
+
   files_to_check = tuple(files_to_check or allow_list or white_list or
                          (r'.*\.py$',))
   files_to_skip = tuple(files_to_skip or block_list or black_list or
diff --git a/presubmit_support.py b/presubmit_support.py
index 53ed9c519..ee2883c2a 100755
--- a/presubmit_support.py
+++ b/presubmit_support.py
@@ -730,10 +730,12 @@ class InputApi(object):
 
     Note: Copy-paste this function to suit your needs or use a lambda function.
     """
-    # TODO(https://crbug.com/1098560): Add warnings before removing bc.
-    if files_to_check is None:
+    # TODO(https://crbug.com/1098560): Remove non inclusive parameter names.
+    if files_to_check is None and (allow_list or white_list):
+      warn('Use files_to_check in FilterSourceFile')
       files_to_check = allow_list or white_list
-    if files_to_skip is None:
+    if files_to_skip is None and (block_list or black_list):
+      warn('Use files_to_skip in FilterSourceFile')
       files_to_skip = block_list or black_list
 
     if files_to_check is None: