Commit 5fbea423 authored by Michal Suchanek's avatar Michal Suchanek Committed by Andrii Nakryiko
Browse files

bpf_doc: Fix build error with older python versions 



The ability to subscript match result as an array is only available
since python 3.6. Existing code in bpf_doc uses the older group()
interface but commit 8a76145a adds code using the new interface.

Use the old interface consistently to avoid build error on older
distributions like the below:

+ 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: 8a76145a ("bpf: explicitly define BPF_FUNC_xxx integer values")
Signed-off-by: default avatarMichal Suchanek <msuchanek@suse.de>
Signed-off-by: default avatarAndrii Nakryiko <andrii@kernel.org>
Acked-by: default avatarQuentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20230109113442.20946-1-msuchanek@suse.de
parent 6920b086

scripts/bpf_doc.py

+1 −1
Original line number Diff line number Diff line
@@ -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: