On Wed, 8 Jun 2022 10:27:15 +0200 Jiri Pirko wrote:
> Wed, Jun 08, 2022 at 06:39:55AM CEST, k...@kernel.org wrote:
> >Netdev reference helpers have a dev_ prefix for historic
> >reasons. Renaming the old helpers would be too much churn  
> 
> Hmm, I think it would be great to eventually rename the rest too in
> order to maintain unique prefix for netdev things. Why do you think the
> "churn" would be an issue?

Felt like we're better of moving everyone to the new tracking helpers
than doing just a pure rename. But I'm not opposed to a pure rename.

> >diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
> >index 817577e713d7..815738c0e067 100644
> >--- a/drivers/net/macsec.c
> >+++ b/drivers/net/macsec.c
> >@@ -3462,7 +3462,7 @@ static int macsec_dev_init(struct net_device *dev)
> >             memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
> > 
> >     /* Get macsec's reference to real_dev */
> >-    dev_hold_track(real_dev, &macsec->dev_tracker, GFP_KERNEL);
> >+    netdev_hold(real_dev, &macsec->dev_tracker, GFP_KERNEL);  
> 
> So we later decide to rename dev_hold() to obey the netdev_*() naming
> scheme, we would have collision.

dev_hold() should not be used in new code, we should use tracking
everywhere. Given that we can name the old helpers __netdev_hold().

> Also, seems to me odd to have:
> OLDPREFIX_x()
> and
> NEWPREFIX_x()
> to be different functions.
> 
> For the sake of not making naming mess, could we rather have:
> netdev_hold_track()
> or
> netdev_hold_tr() if the prior is too long
> ?

See above, one day non-track version should be removed.
IMO to encourage use of the track-capable API we could keep their names
short and call the legacy functions __netdev_hold() as I mentioned or
maybe netdev_hold_notrack().
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