netdev - Re: [PATCH net-next 2/3] net: dsa: Allow default tag protocol to be overridden from DT

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Date:   Wed, 31 Mar 2021 16:20:13 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Tobias Waldekranz <tobias@...dekranz.com>
Cc:     davem@...emloft.net, kuba@...nel.org, andrew@...n.ch,
        vivien.didelot@...il.com, f.fainelli@...il.com,
        netdev@...r.kernel.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH net-next 2/3] net: dsa: Allow default tag protocol to be
 overridden from DT

On Fri, Mar 26, 2021 at 02:57:20PM +0200, Vladimir Oltean wrote:
> Hi Tobias,
> 
> On Fri, Mar 26, 2021 at 11:56:47AM +0100, Tobias Waldekranz wrote:
> >  	} else {
> > -		dst->tag_ops = dsa_tag_driver_get(tag_protocol);
> > -		if (IS_ERR(dst->tag_ops)) {
> > -			if (PTR_ERR(dst->tag_ops) == -ENOPROTOOPT)
> > -				return -EPROBE_DEFER;
> > -			dev_warn(ds->dev, "No tagger for this switch\n");
> > -			dp->master = NULL;
> > -			return PTR_ERR(dst->tag_ops);
> > -		}
> > +		dst->tag_ops = tag_ops;
> >  	}
> 
> This will conflict with George's bug fix for 'net', am I right?
> https://patchwork.kernel.org/project/netdevbpf/patch/20210322202650.45776-1-george.mccollister@gmail.com/
> 
> Would you mind resending after David merges 'net' into 'net-next'?
> 
> This process usually looks like commit d489ded1a369 ("Merge
> git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net"). However,
> during this kernel development cycle, I have seen no merge of 'net' into
> 'net-next' since commit 05a59d79793d ("Merge
> git://git.kernel.org:/pub/scm/linux/kernel/git/netdev/net"), but that
> comes directly from Linus Torvalds' v5.12-rc2.
> 
> Nonetheless, at some point (and sooner rather than later, I think),
> David or Jakub should merge the two trees. I would prefer to do it this
> way because the merge is going to be a bit messy otherwise, and I might
> want to cherry-pick these patches to some trees and it would be nice if
> the history was linear.
> 
> Thanks!

Tobias, I think you can safely resend now, I see George's change is in
net-next:
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/tree/net/dsa/dsa2.c#n1084