On Wed, Aug 06, 2025 at 08:12:39PM +0100, Simon Horman wrote:
> On Tue, Aug 05, 2025 at 02:49:17PM -0700, Bobby Eshleman wrote:
> > From: Bobby Eshleman <[email protected]>
> >
...
>
> This change needs to be squashed into
> PATCH 3/12 vsock: add netns to af_vsock core
>
> To avoid build breakage.
>
> Likewise with the other change to vsock_loopback_seqpacket_allow below.
> And I think also for a number of other changes made by PATCH 3/12.
>
> Please make sure that patches don't introduce transient build failures.
> It breaks bisection.
Will do, thanks!
>
>
> On the topic of vsock_loopback_seqpacket_allow, also:
>
> * Please line wrap this so that the code is 80 columns wide or less,
> as is still preferred for Networking code.
>
> Flagged by checkpatch.pl --max-line-length=80
>
> * Can we move the definition of vsock_loopback_seqpacket_allow() here?
> The function itself is is trivial. And doing so would avoid a forward
> declaration.
>
> > static bool vsock_loopback_msgzerocopy_allow(void)
> > {
> > return true;
>
> ...
>
> > +int vsock_loopback_init_net(struct net *net)
> > +{
> > + net->vsock.loopback = kmalloc(GFP_KERNEL, sizeof(struct
> > vsock_loopback));
> > + if (!net->vsock.loopback)
> > + return -ENOMEM;
> > +
> > + return vsock_loopback_init_vsock(net->vsock.loopback);
> > +}
> > +
> > +void vsock_loopback_exit_net(struct net *net)
> > +{
> > + vsock_loopback_deinit_vsock(net->vsock.loopback);
> > + kfree(net->vsock.loopback);
> > +}
>
> I think EXPORT_SYMBOL_GPL is needed for both vsock_loopback_exit_net and
> vsock_loopback_init_net for the case where CONFIG_VSOCKETS=m
>
> Also, in Kconfig VSOCKETS_LOOPBACK depends on VSOCKETS. But this code adds
> a reverse dependency. As it stands it's possible to configure VSOCKETS
> without VSOCKETS_LOOPBACK, which will not compile.
>
> Perhaps stub implementations of vsock_loopback_init_net and
> vsock_loopback_exit_net should be implemented in af_vsock.h if
> VSOCKETS_LOOPBACK is not enabled?
>
Roger that, makes sense. Thanks for the review!
Best,
Bobby
