On Fri, 11 Mar 2022 11:28:28 +0800 menglong8.dong@xxxxxxxxx wrote: > From: Menglong Dong <imagedong@xxxxxxxxxxx> > > Move the definition of 'enum skb_drop_reason' in 'skbuff.h' to the uapi > header 'net_dropmon.h', therefore some users, such as eBPF program, can > make use of it. BPF does not need an enum definition to be part of the uAPI to make use of it. BTF should encode the values, and CO-RE can protect from them changing, AFAIU. I think we need a better example user / justification.