Looking at this again ... > I see the patch causes compiling error becasue family->family is not > found when LINUX_VERSION >= 3.13 Yeah, that seems right. > backports/backport/backport-include/genetlink.h > struct backport_genl_fmaily is only defined when LINUX_VERSION < 3.13 > > > And in backports/backport/compat/backport-3.13.c line 127 > > family->id = family->family.id > > it looks like this line has done what the patch want to do. Is the > comprehension correct? I don't think so. We call this function - via __real_bp_extack_genl_register_family() - on copy->family, so we do need to copy like Aaron said, we just need to make it conditional for kernel < 3.13 because on 3.13 we don't use this sub-family thing. I've committed a fix - does that work for both of you? Aaron? johannes -- To unsubscribe from this list: send the line "unsubscribe backports" in