[Bug 2150071] Re: ubuntu_bpf failed to build on Resolute (error: expected ‘:’, ‘,’, ‘;’, ‘}’ or ‘__attribute__’ before ‘__counted_by’)

** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Resolute) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Resolute) Status: New => In Progress ** Changed in: ubuntu-kernel-tests Status: New => In Progress ** Changed in: linux (Ubuntu Resolute) Assignee: (unassigned) => Paolo Pisati (p-pisati) ** Changed in: ubuntu-kernel-tests Assignee: (unassigned) => Paolo Pisati (p-pisati) -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2150071 Title: ubuntu_bpf failed to build on Resolute (error: expected ‘:’, ‘,’, ‘;’, ‘}’ or ‘__attribute__’ before ‘__counted_by’) Status in ubuntu-kernel-tests: In Progress Status in linux package in Ubuntu: New Status in linux source package in Resolute: In Progress Bug description: [Impact] ubuntu_bpf selftest fail to setup: '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf'    make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests'    stderr:    In file included from test_tag.c:18:    /usr/include/linux/if_alg.h:45:22: error: expected ‘:’, ‘,’, ‘;’, ‘}’ or ‘__attribute__’ before ‘__counted_by’    45 | __u8 iv[] __counted_by(ivlen);    | ^~~~~~~~~~~~    make[1]: *** [Makefile:244: [Fix] Apply the upstream fix present in v7.1-rc2: commit 0c7ae130698e70107430254e79fbe996b4d37ab5 Author: Paul Chaignon <paul.chaignon@gmail.com> Date: Sat May 2 12:12:40 2026 +0200     tools/headers: Regenerate stddef.h to fix BPF selftests     With commit dacbfc167808 ("crypto: af_alg - Annotate struct af_alg_iv     with __counted_by"), two selftests, test_tag and crypto_sanity, now     indirectly rely on the __counted_by macro. On systems with commit     dacbfc167808 in the installed UAPI headers, the selftests build fails     with:       In file included from tools/testing/selftests/bpf/prog_tests/crypto_sanity.c:7:       /usr/include/linux/if_alg.h:45:22: error: expected ‘:’, ‘,’, ‘;’, ‘}’ or ‘__attribute__’ before ‘__counted_by’          45 | __u8 iv[] __counted_by(ivlen);             | ^~~~~~~~~~~~     This patch fixes it by regenerating stddef.h in tools/include using the     instructions from commit a778f5d46b62 ("tools/headers: Pull in stddef.h     to uapi to fix BPF selftests build in CI"). [How to reproduce] Run the ubuntu_bpf test again after applying the patch. [Regression potential] Low: clean upstream cherry-pick for a known problem. --- Issue found on Openstack AMD64 instance with R/linux 7.0.0-14.14 Test build failed with:    INSTALL /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/tools/include/bpf/bpf_helper_defs.h    INSTALL libbpf_headers    TEST-HDR [test_progs] tests.h    EXT-OBJ [test_progs] testing_helpers.o    EXT-OBJ [test_progs] cap_helpers.o    EXT-OBJ [test_progs] unpriv_helpers.o    BINARY test_verifier    BINARY test_tag    make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf'    make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests'    stderr:    In file included from test_tag.c:18:    /usr/include/linux/if_alg.h:45:22: error: expected ‘:’, ‘,’, ‘;’, ‘}’ or ‘__attribute__’ before ‘__counted_by’    45 | __u8 iv[] __counted_by(ivlen);    | ^~~~~~~~~~~~    make[1]: *** [Makefile:244: /home/ubuntu/autotest/client/tmp/ubuntu_bpf/src/linux/tools/testing/selftests/bpf/test_tag] Error 1    make: *** [Makefile:212: all] Error 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2150071/+subscriptions