On Fri, Jan 28, 2022 at 10:44:38PM +0800, D. Wythe wrote: > From: "D. Wythe" <alibuda@xxxxxxxxxxxxxxxxx> > @@ -19,3 +19,15 @@ config SMC_DIAG ... > +if SMC > + > +config SMC_AUTO_FALLBACK > + bool "SMC: automatic fallback to TCP" > + default y > + help > + Allow automatic fallback to TCP accroding to the pressure of SMC-R > + handshake process. > + > + If that's not what you except or unsure, say N. > +endif Using a netlink knob to control behavior with static key should be more flexible. As I appended in the previous version of this patch. Thank you, Tony Lu