Zhengchao Shao <shaozhengchao@xxxxxxxxxx> writes: > if user sets nonexistent xdp_flags to detach xdp prog, kernel should > return err and tell user that detach failed with detail info. > > Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> I kinda see your point, but this will change user-visible behaviour that applications might be relying on, so I don't think we can make this change at this stage. Why can't your application just query the link for whether a program is attached? -Toke
