To avoid issues with hardcoded table numbers in future add rule
into check patch. The rule is only warning because there are still
legitimate use cases and not everything can be abstracted.

Signed-off-by: Ales Musil <amu...@redhat.com>
---
 utilities/checkpatch.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/utilities/checkpatch.py b/utilities/checkpatch.py
index 52d3fa845..9f7a48c7c 100755
--- a/utilities/checkpatch.py
+++ b/utilities/checkpatch.py
@@ -202,6 +202,7 @@ __regex_if_macros = re.compile(r'^ +(%s) 
\([\S]([\s\S]+[\S])*\) { +\\' %
                                __parenthesized_constructs)
 __regex_nonascii_characters = re.compile("[^\u0000-\u007f]")
 __regex_efgrep = re.compile(r'.*[ef]grep.*$')
+__regex_hardcoded_table = re.compile(r'(table=[0-9]+)|(resubmit\(,[0-9]+\))')
 
 skip_leading_whitespace_check = False
 skip_trailing_whitespace_check = False
@@ -371,6 +372,10 @@ def has_efgrep(line):
     """Returns TRUE if the current line contains 'egrep' or 'fgrep'."""
     return __regex_efgrep.match(line) is not None
 
+def has_hardcoded_table(line):
+    """Return TRUE if the current line contains table=<NUMBER> or
+       resubmit(,<NUMBER>)"""
+    return __regex_hardcoded_table.match(line) is not None
 
 def filter_comments(current_line, keep=False):
     """remove all of the c-style comments in a line"""
@@ -656,6 +661,13 @@ checks = [
      'check': lambda x: has_efgrep(x),
      'print':
      lambda: print_error("grep -E/-F should be used instead of egrep/fgrep")},
+
+    {'regex': r'\.at$', 'match_name': None,
+     'check': lambda x: has_hardcoded_table(x),
+     'print':
+         lambda: print_warning("Use of hardcoded table=<NUMBER> or"
+                               " resubmit=(,<NUMBER>) is discouraged in tests."
+                               " Consider using MACRO instead.")},
 ]
 
 
-- 
2.43.0

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