Hi! > From: Xin Long <lucien.xin@xxxxxxxxx> > > [ Upstream commit 3ae6d66b605be604644d4bb5708a7ffd9cf1abe8 ] > > As different media may requires different min mtu, and even the > same media with different net family requires different min mtu, > add tipc_bearer_min_mtu() to calculate min mtu accordingly. > > This API will be used to check the new mtu when doing the link > mtu negotiation in the next patch. Ok, but we don't have the next patch queued with the AUTOSEL, so do we need this? > +++ b/net/tipc/bearer.c > @@ -541,6 +541,19 @@ int tipc_bearer_mtu(struct net *net, u32 bearer_id) > return mtu; > } > > +int tipc_bearer_min_mtu(struct net *net, u32 bearer_id) > +{ > + int mtu = TIPC_MIN_BEARER_MTU; > + struct tipc_bearer *b; > + > + rcu_read_lock(); > + b = bearer_get(net, bearer_id); > + if (b) > + mtu += b->encap_hlen; > + rcu_read_unlock(); > + return mtu; > +} > + AFAICT this function is unused. Best regards, Pavel -- DENX Software Engineering GmbH, Managing Director: Erika Unter HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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