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@kernel.org>
---
 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

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Mauro Carvalho Chehab
> Sent: Thursday, January 29, 2026 9:08 AM
> To: Jonathan Corbet <corbet@lwn.net>; Linux Doc Mailing List <linux-
> doc@vger.kernel.org>
> Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>;
> bpf@vger.kernel.org; intel-wired-lan@lists.osuosl.org; linux-
> hardening@vger.kernel.org; linux-kernel@vger.kernel.org;
> netdev@vger.kernel.org; Mauro Carvalho Chehab <mchehab@kernel.org>;
> Randy Dunlap <rdunlap@infradead.org>
> Subject: [Intel-wired-lan] [PATCH v3 16/30] 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@kernel.org>
> ---
>  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

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>