Add support for suppression patterns

Author: mpe

etc/filters.ini

@@ -21,3 +21,5 @@ v13=UBSAN:
 [suppressions]
 v1=test_debug_virtual_init
 v2=at drivers/misc/lkdtm/
+
+[suppression_patterns]

lib/utils.py

@@ -141,6 +141,8 @@ def filter_log_warnings(infile, outfile):
     parser = ConfigParser()
     parser.read_file(open(path))
     suppressions = [t[1] for t in parser.items('suppressions', [])]
+    suppression_patterns = [t[1] for t in parser.items('suppression_patterns', [])]
+    suppression_patterns = [re.compile(p) for p in suppression_patterns]
     strings  = [t[1] for t in parser.items('strings', [])]
     patterns = [t[1] for t in parser.items('patterns', [])]
     patterns = [re.compile(p) for p in patterns]
@@ -150,6 +152,10 @@ def suppress(line):
             if suppression in line:
                 return True
 
+        for pattern in suppression_patterns:
+            if pattern.search(line):
+                return True
+
         return False
 
     found = False