netdev - Re: [PATCH] net: mscc: ocelot: hide MSCC_OCELOT_SWITCH and move outside NET_VENDOR

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Message-ID: <CAK8P3a1PBa0bcfmPnVGry-6GUQ0WTLJ36MAE89QWXzbnuEf_XQ@mail.gmail.com>
Date:   Sat, 14 Dec 2019 16:16:56 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     David Miller <davem@...emloft.net>,
        Mao Wenan <maowenan@...wei.com>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        alexandru.marginean@....com, xiaoliang.yang_1@....com,
        yangbo lu <yangbo.lu@....com>,
        Networking <netdev@...r.kernel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        UNGLinuxDriver@...rochip.com,
        Vladimir Oltean <vladimir.oltean@....com>
Subject: Re: [PATCH] net: mscc: ocelot: hide MSCC_OCELOT_SWITCH and move
 outside NET_VENDOR_MICROSEMI

On Thu, Dec 12, 2019 at 6:11 PM Vladimir Oltean <olteanv@...il.com> wrote:
>
> From: Vladimir Oltean <vladimir.oltean@....com>
>
> NET_DSA_MSCC_FELIX and MSCC_OCELOT_SWITCH_OCELOT are 2 different drivers
> that use the same core operations, compiled under MSCC_OCELOT_SWITCH.

> Fixes: 56051948773e ("net: dsa: ocelot: add driver for Felix switch family")
> Reported-by: Arnd Bergmann <arnd@...db.de>
> Reported-by: Mao Wenan <maowenan@...wei.com>
> Signed-off-by: Vladimir Oltean <vladimir.oltean@....com>

I did some more build testing and ran into another issue now that
MSCC_OCELOT_SWITCH_OCELOT can be built without
CONFIG_SWITCHDEV:

WARNING: unmet direct dependencies detected for MSCC_OCELOT_SWITCH
  Depends on [n]: NETDEVICES [=y] && ETHERNET [=y] && NET_SWITCHDEV
[=n] && HAS_IOMEM [=y]
  Selected by [y]:
  - MSCC_OCELOT_SWITCH_OCELOT [=y] && NETDEVICES [=y] && ETHERNET [=y]
&& NET_VENDOR_MICROSEMI [=y]
drivers/net/ethernet/mscc/ocelot_board.c: In function 'ocelot_xtr_irq_handler':
drivers/net/ethernet/mscc/ocelot_board.c:176:7: error: 'struct
sk_buff' has no member named 'offload_fwd_mark'
    skb->offload_fwd_mark = 1;
       ^~

Adding another "depends on NET_SWITCHDEV"  fixed it for me.

       Arnd