netdev - Re: [PATCH net-next v4 10/12] net: dummy: add dummy shaper API

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Message-ID: <Z7VkiOkRxL3vOL0G@mini-arch>
Date: Tue, 18 Feb 2025 20:56:40 -0800
From: Stanislav Fomichev <stfomichev@...il.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Stanislav Fomichev <sdf@...ichev.me>, netdev@...r.kernel.org,
	davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
	Saeed Mahameed <saeed@...nel.org>
Subject: Re: [PATCH net-next v4 10/12] net: dummy: add dummy shaper API

On 02/18, Jakub Kicinski wrote:
> On Mon, 17 Feb 2025 18:09:46 -0800 Stanislav Fomichev wrote:
> > A lot of selftests are using dummy module, convert it to netdev
> > instance lock to expand the test coverage.
> 
> I think the next version should be ready for merging.
> What should we do with this patch?
> Can we add a bool inside struct net_device to opt-in
> for the ndo locking, without having to declare empty
> ops? I think more drivers could benefit from it that way.

Awesome, will drop this patch and add another one with a bool opt-in!

LMK if you prefer other name or a better comment:

@@ -2456,6 +2456,12 @@ struct net_device {
         */
        bool                    up;

+       /**
+        * @request_ops_lock: request the core to run all @netdev_ops and
+        * @ethtool_ops under the @lock.
+        */
+       bool                    request_ops_lock;
+
        /**
         * @lock: netdev-scope lock, protects a small selection of fields.
         * Should always be taken using netdev_lock() / netdev_unlock() helpers.