linux-kernel - [PATCH 8/8] selftests/bpf: fix Python string escapes in f-strings

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Date:   Mon, 14 Aug 2023 16:07:04 +1000
From:   Benjamin Gray <bgray@...ux.ibm.com>
To:     linux-kernel@...r.kernel.org, linux-ia64@...r.kernel.org,
        linux-doc@...r.kernel.org, bpf@...r.kernel.org,
        linux-pm@...r.kernel.org
Cc:     abbotti@....co.uk, hsweeten@...ionengravers.com,
        jan.kiszka@...mens.com, kbingham@...nel.org, mykolal@...com,
        Benjamin Gray <bgray@...ux.ibm.com>
Subject: [PATCH 8/8] selftests/bpf: fix Python string escapes in f-strings

Python 3.6 introduced a DeprecationWarning for invalid escape sequences.
This is upgraded to a SyntaxWarning in Python 3.12, and will eventually
be a syntax error.

Fix these now to get ahead of it before it's an error.

Signed-off-by: Benjamin Gray <bgray@...ux.ibm.com>
---
 tools/testing/selftests/bpf/test_bpftool_synctypes.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
index b21bc1a35bf4..a93144b3b2b0 100755
--- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
+++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
@@ -66,7 +66,7 @@ class ArrayParser(BlockParser):
 
     def __init__(self, reader, array_name):
         self.array_name = array_name
-        self.start_marker = re.compile(f'(static )?const bool {self.array_name}\[.*\] = {{\n')
+        self.start_marker = re.compile(f'(static )?const bool {self.array_name}\\[.*\\] = {{\n')
         super().__init__(reader)
 
     def search_block(self):
@@ -226,7 +226,7 @@ class FileExtractor(object):
 
         @block_name: name of the blog to parse, 'TYPE' in the example
         """
-        start_marker = re.compile(f'\*{block_name}\* := {{')
+        start_marker = re.compile(f'\\*{block_name}\\* := {{')
         pattern = re.compile('\\*\\*([\\w/-]+)\\*\\*')
         end_marker = re.compile('}\n')
         return self.__get_description_list(start_marker, pattern, end_marker)
@@ -245,7 +245,7 @@ class FileExtractor(object):
 
         @block_name: name of the blog to parse, 'TYPE' in the example
         """
-        start_marker = re.compile(f'"\s*{block_name} := {{')
+        start_marker = re.compile(f'"\\s*{block_name} := {{')
         pattern = re.compile('([\\w/]+) [|}]')
         end_marker = re.compile('}')
         return self.__get_description_list(start_marker, pattern, end_marker)
@@ -264,7 +264,7 @@ class FileExtractor(object):
 
         @macro: macro starting the block, 'HELP_SPEC_OPTIONS' in the example
         """
-        start_marker = re.compile(f'"\s*{macro}\s*" [|}}]')
+        start_marker = re.compile(f'"\\s*{macro}\\s*" [|}}]')
         pattern = re.compile('([\\w-]+) ?(?:\\||}[ }\\]])')
         end_marker = re.compile('}\\\\n')
         return self.__get_description_list(start_marker, pattern, end_marker)
-- 
2.41.0