linux-kernel - Re: [PATCH net-next 0/6] net: dsa: push switchdev prepare phase in FDB ops

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Message-ID: <20151008134710.GL2186@nanopsycho.orion>
Date:	Thu, 8 Oct 2015 15:47:10 +0200
From:	Jiri Pirko <jiri@...nulli.us>
To:	Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com,
	sfeldma@...il.com, f.fainelli@...il.com, andrew@...n.ch,
	narmstrong@...libre.com, sergei.shtylyov@...entembedded.com
Subject: Re: [PATCH net-next 0/6] net: dsa: push switchdev prepare phase in
 FDB ops

Thu, Oct 08, 2015 at 03:32:51PM CEST, vivien.didelot@...oirfairelinux.com wrote:
>Hi David,
>
>On Oct. Thursday 08 (41) 05:28 AM, David Miller wrote:
>> From: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
>> Date: Wed,  7 Oct 2015 19:48:25 -0400
>> 
>> > The first 3 patches removes the dsa.h include from linux/netdevice.h, which
>> > broke the inclusion of switchdev.h in dsa.h.
>> 
>> I still don't agree with bloating up struct netdevice just to deal with
>> an include file ordering issue, sorry.
>
>Yes, I just saw your reply on the first version. I will resend the
>patchset with the forward declarations instead.
>
>But looking at the issue that Jiri and the kbuild bot pointed out
>earlier in the thread, we must agree that having the DSA header in
>netdevice.h is wrong.
>
>There are 2 points to note here:
>
>* checking a "rcv" member of a DSA-specific structure to anwser the
>  question "does this interface uses hardware-inserted tag?" is not
>  generic and not robust at all.
>
>* the "dsa_ptr" of net_device is just used to access the dsa_switch_tree
>  from DSA packet_type receive functions. There must be another way to
>  pass it, maybe from a netdev_priv or the packet_type->af_packet_priv?

I sent previously patch for this:
http://patchwork.ozlabs.org/patch/336940/
So now my patch would have another user :)

Vivien, I will refresh the patch and send it to you, the you can
use the priv by dsa and send my patch along with your patchset. How does
that sound?

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