Re: [PATCH] bpf_doc: Fix build error with older python versions

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On 1/6/23 1:11 PM, Quentin Monnet wrote:
2023-01-06 12:40 UTC+0100 ~ Michal Suchanek <msuchanek@xxxxxxx>
+ make -j48 -s -C /dev/shm/kbuild/linux.33946/current ARCH=powerpc HOSTCC=gcc CROSS_COMPILE=powerpc64-suse-linux- clean
TypeError: '_sre.SRE_Match' object is not subscriptable

Fixes: 8a76145a2ec2 ("bpf: explicitly define BPF_FUNC_xxx integer values")

Signed-off-by: Michal Suchanek <msuchanek@xxxxxxx>
---
  scripts/bpf_doc.py | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/bpf_doc.py b/scripts/bpf_doc.py
index e8d90829f23e..38d51e05c7a2 100755
--- a/scripts/bpf_doc.py
+++ b/scripts/bpf_doc.py
@@ -271,7 +271,7 @@ class HeaderParser(object):
              if capture:
                  fn_defines_str += self.line
                  helper_name = capture.expand(r'bpf_\1')
-                self.helper_enum_vals[helper_name] = int(capture[2])
+                self.helper_enum_vals[helper_name] = int(capture.group(2))
                  self.helper_enum_pos[helper_name] = i
                  i += 1
              else:

Thanks, the change looks good.

Acked-by: Quentin Monnet <quentin@xxxxxxxxxxxxx>

Would be nice to have a bit more context in the commit log: As I
understand, Match objects have been scriptable since Python 3.6 (2016).

Reference: https://docs.python.org/3/whatsnew/3.6.html#re

Agree, Michal, could you improve the commit description as it's a bit terse
as-is and then resubmit your patch.

Thanks,
Daniel



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