netdev - Re: [PATCHv4 net-next 1/4] net: add a common function to compute features from lowers devices

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Message-ID: <aO74J20k16L7jS15@fedora>
Date: Wed, 15 Oct 2025 01:25:59 +0000
From: Hangbin Liu <liuhangbin@...il.com>
To: Jiri Pirko <jiri@...nulli.us>
Cc: netdev@...r.kernel.org, Jay Vosburgh <jv@...sburgh.net>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Sabrina Dubroca <sdubroca@...hat.com>,
	Simon Horman <horms@...nel.org>, Ido Schimmel <idosch@...dia.com>,
	Shuah Khan <shuah@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>,
	Stanislav Fomichev <stfomichev@...il.com>,
	Kuniyuki Iwashima <kuniyu@...gle.com>,
	Alexander Lobakin <aleksander.lobakin@...el.com>,
	bridge@...ts.linux.dev, linux-kselftest@...r.kernel.org
Subject: Re: [PATCHv4 net-next 1/4] net: add a common function to compute
 features from lowers devices

Hi Jiri,
On Tue, Oct 14, 2025 at 11:40:12AM +0200, Jiri Pirko wrote:
> >+#define VIRTUAL_DEV_VLAN_FEATURES	(NETIF_F_HW_CSUM | NETIF_F_SG | \
> 
> I don't like the "virtual" naming. In the past, we always tried to avoid
> that for lower-upper devices like bond/team/bridge/others. Soft-device
> was the used term. Please let the "virtual" term for vitrualization,
> would that be possible?

Sure
> 
> How about "master_upper"? This is already widely used to refer to
> bond/team/bridge/other master soft devices.
> 
> MASTER_UPPER_DEV_VLAN_FEATURES?

I'm not sure if we should avoid using "master" now. Maybe just UPPER_DEV_VLAN_FEATURES?

> [..]
> 
> 
> >+void netdev_compute_features_from_lowers(struct net_device *dev, bool update_header)
> 
> netdev_compute_master_upper_features?

netdev_compute_upper_features?

Thanks
Hangbin