netdev - [PATCH v4 16/41] docs: kdoc_re: better show KernRe() at documentation

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Message-ID: <affc3bcc500311dcebc0ded047cff134a7095968.1769867953.git.mchehab+huawei@kernel.org>
Date: Sat, 31 Jan 2026 15:24:50 +0100
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Jonathan Corbet <corbet@....net>,
	Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
	intel-wired-lan@...ts.osuosl.org,
	linux-hardening@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	Aleksandr Loktionov <aleksandr.loktionov@...el.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Randy Dunlap <rdunlap@...radead.org>
Subject: [PATCH v4 16/41] docs: kdoc_re: better show KernRe() at documentation

the __repr__() function is used by autodoc to document macro
initialization.

Add a better representation for them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
---
 tools/lib/python/kdoc/kdoc_re.py | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/tools/lib/python/kdoc/kdoc_re.py b/tools/lib/python/kdoc/kdoc_re.py
index 1861799f1966..3f405addcc58 100644
--- a/tools/lib/python/kdoc/kdoc_re.py
+++ b/tools/lib/python/kdoc/kdoc_re.py
@@ -52,7 +52,28 @@ class KernRe:
         return self.regex.pattern
 
     def __repr__(self):
-        return f're.compile("{self.regex.pattern}")'
+        """
+        Returns a displayable version of the class init.
+        """
+
+        flag_map = {
+            re.IGNORECASE: "re.I",
+            re.MULTILINE: "re.M",
+            re.DOTALL: "re.S",
+            re.VERBOSE: "re.X",
+        }
+
+        flags = []
+        for flag, name in flag_map.items():
+            if self.regex.flags & flag:
+                flags.append(name)
+
+        flags_name = " | ".join(flags)
+
+        if flags_name:
+            return f'KernRe("{self.regex.pattern}", {flags_name})'
+        else:
+            return f'KernRe("{self.regex.pattern}")'
 
     def __add__(self, other):
         """
-- 
2.52.0