[RFC PATCH 3/4] tools/misra: fix skipped rule numbers

[Luca Fancellu <luca.fancellu@xxxxxxx>]

Currently the script convert_misra_doc.py is using a loop through
range(1,22) to enumerate rules that needs to be skipped, however
range function does not include the stop counter in the enumeration
ending up into list rules until 21.21 instead of including rule 22.

Fix the issue using a dictionary that list the rules in misra c2012.

Fixes: 57caa5375321 ("xen: Add MISRA support to cppcheck make rule")
Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
---
 xen/tools/convert_misra_doc.py | 32 ++++++++++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/xen/tools/convert_misra_doc.py b/xen/tools/convert_misra_doc.py
index caa4487f645f..13074d8a2e91 100755
--- a/xen/tools/convert_misra_doc.py
+++ b/xen/tools/convert_misra_doc.py
@@ -14,6 +14,34 @@ Usage:
 
 import sys, getopt, re
 
+# MISRA rule are identified by two numbers, e.g. Rule 1.2, the main rule number
+# and a sub-number. This dictionary contains the number of the MISRA rule as 
key
+# and the maximum sub-number for that rule as value.
+misra_c2012_rules = {
+    1:4,
+    2:7,
+    3:2,
+    4:2,
+    5:9,
+    6:2,
+    7:4,
+    8:14,
+    9:5,
+    10:8,
+    11:9,
+    12:5,
+    13:6,
+    14:4,
+    15:7,
+    16:7,
+    17:8,
+    18:8,
+    19:2,
+    20:14,
+    21:21,
+    22:10
+}
+
 def main(argv):
     infile = ''
     outfile = ''
@@ -142,8 +170,8 @@ def main(argv):
     skip_list = []
 
     # Search for missing rules and add a dummy text with the rule number
-    for i in list(range(1,22)):
-        for j in list(range(1,22)):
+    for i in misra_c2012_rules:
+        for j in list(range(1,misra_c2012_rules[i]+1)):
             if str(i) + '.' + str(j) not in rule_list:
                 outstr.write('Rule ' + str(i) + '.' + str(j) + '\n')
                 outstr.write('No description for rule ' + str(i) + '.' + str(j)
-- 
2.17.1