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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jiri Pirko , Simon Horman , Ido Schimmel , Shuah Khan , Stanislav Fomichev , Kuniyuki Iwashima , Ahmed Zaki , Alexander Lobakin , bridge@lists.linux.dev, linux-kselftest@vger.kernel.org Subject: Re: [PATCHv2 net-next 1/5] net: add a common function to compute features from lowers devices Message-ID: References: <20250902072602.361122-1-liuhangbin@gmail.com> <20250902072602.361122-2-liuhangbin@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Sat, Sep 06, 2025 at 07:42:48PM +0200, Sabrina Dubroca wrote: > > + dev->gso_partial_features = gso_partial_features; > > + dev->vlan_features = vlan_features; > > +#ifdef CONFIG_XFRM_OFFLOAD > > + dev->hw_enc_features |= xfrm_features; > > +#endif > > I'm not completely sure we want xfrm_features for upper devices other > than bonding [1], but this will get overwritten immediately > afterwards: > > > + dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL | > > + NETIF_F_HW_VLAN_CTAG_TX | > > + NETIF_F_HW_VLAN_STAG_TX; Ah.. right. I need more careful when change the order. > > > [1] those lines in bond_compute_features were only added alongside > bond IPsec offload, see 18cb261afd7b ("bonding: support hardware > encryption offload to slaves") > > but AFAIU hw_enc_features is only used as a mask over dev->features so > it shouldn't be a problem to have xfrm stuff in bridge/team as well In this case I will keep this setting. Putting the feature compute to another function will violate our original intention of putting the feature compute together as much as possible. Thanks Hangbin