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SubjectRe: [PATCH 05/11] net: core: provide devm_register_netdev()
wt., 5 maj 2020 o 19:31 Jakub Kicinski <kuba@kernel.org> napisał(a):
>
> On Tue, 5 May 2020 16:02:25 +0200 Bartosz Golaszewski wrote:
> > From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> >
> > Provide devm_register_netdev() - a device resource managed variant
> > of register_netdev(). This new helper will only work for net_device
> > structs that have a parent device assigned and are devres managed too.
> >
> > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
>
> > diff --git a/net/core/dev.c b/net/core/dev.c
> > index 522288177bbd..99db537c9468 100644
> > --- a/net/core/dev.c
> > +++ b/net/core/dev.c
> > @@ -9519,6 +9519,54 @@ int register_netdev(struct net_device *dev)
> > }
> > EXPORT_SYMBOL(register_netdev);
> >
> > +struct netdevice_devres {
> > + struct net_device *ndev;
> > +};
>
> Is there really a need to define a structure if we only need a pointer?
>

There is no need for that, but it really is more readable this way.
Also: using a pointer directly doesn't save us any memory nor code
here.

Bart

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