Re: [PATCH bpf-next v5 5/9] bpf: selftests: Add verifier tests for CO-RE bitfield writes

On 12/11/23 12:20 PM, Daniel Xu wrote:

Add some tests that exercise BPF_CORE_WRITE_BITFIELD() macro. Since some non-trivial bit fiddling is going on, make sure various edge cases (such as adjacent bitfields and bitfields at the edge of structs) are exercised.

Hi DanielXu, I have pushed the libbpf changes (adding BPF_CORE_WRITE_BITFIELD) and verifier test in patch 3-5 which is useful by itself. e.g. Another patchset can start using it also: https://lore.kernel.org/bpf/8fccb066-6d17-4fa8-ba67-287042046ea4@linux.dev/

Thanks.