> I think you need to fix this on samples/bpf side > > I tried to play with the samples/bpf/ includes, but couldn't find a way to > make this work.. selftests base includes on tools/include, while samples > have $(objtree)/usr/include as first include and AFAICS the __must_check is > defined under __KERNEL__ ifdef > > I guess the reason samples use $(objtree)/usr/include is to get some struct > definitions which are not in tools/include, but looks like some samples objects > already use vmlinux.h include, so that could be the way forward to fix that I tried the method you suggested, and some unexpected problems occurred. Maybe, we can apply v5 [0] first, and then solve this problem? Best wishes, Rong Tao [0] v5: https://lore.kernel.org/lkml/tencent_0E9E1A1C0981678D5E7EA9E4BDBA8EE2200A@xxxxxx/