linux-kernel - [PATCH net] net: dsa: tag_ksz: KSZ8795 and KSZ9477 also use tail tags

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Message-ID: <20201016171603.10587-1-ceggers@arri.de>
Date:   Fri, 16 Oct 2020 19:16:03 +0200
From:   Christian Eggers <ceggers@...i.de>
To:     Woojung Huh <woojung.huh@...rochip.com>,
        Vladimir Oltean <olteanv@...il.com>
CC:     Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        "Jakub Kicinski" <kuba@...nel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Christian Eggers <ceggers@...i.de>
Subject: [PATCH net] net: dsa: tag_ksz: KSZ8795 and KSZ9477 also use tail tags

The Marvell 88E6060 uses tag_trailer.c and the KSZ8795, KSZ9477 and
KSZ9893 switches also use tail tags.

Fixes: 7a6ffe764be3 ("net: dsa: point out the tail taggers")
Signed-off-by: Christian Eggers <ceggers@...i.de>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
---
On Friday, 16 October 2020, 18:56:51 CEST, Vladimir Oltean wrote:
> Hi Christian,
> 
> The idea is perfect but the commit isn't.
>  ...
> Now if you run
> "git show 7a6ffe764be35af0527d8cfd047945e8f8797ddf --pretty=fixes",
> you'll see:
> 
> Fixes: 7a6ffe764be3 ("net: dsa: point out the tail taggers")
thanks for pointing out how to use this feature. I did this manually up to now.

> Notice how there's no [net] tag?
> People complain when the format of the Fixes: tag is not standardized.
I added it manually because the commit ID is not from Linus' tree. Is there any
value using Fixes tags with id's from other trees?

regards
Christian

 net/dsa/tag_ksz.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c
index 945a9bd5ba35..0a5aa982c60d 100644
--- a/net/dsa/tag_ksz.c
+++ b/net/dsa/tag_ksz.c
@@ -123,6 +123,7 @@ static const struct dsa_device_ops ksz8795_netdev_ops = {
 	.xmit	= ksz8795_xmit,
 	.rcv	= ksz8795_rcv,
 	.overhead = KSZ_INGRESS_TAG_LEN,
+	.tail_tag = true,
 };
 
 DSA_TAG_DRIVER(ksz8795_netdev_ops);
@@ -199,6 +200,7 @@ static const struct dsa_device_ops ksz9477_netdev_ops = {
 	.xmit	= ksz9477_xmit,
 	.rcv	= ksz9477_rcv,
 	.overhead = KSZ9477_INGRESS_TAG_LEN,
+	.tail_tag = true,
 };
 
 DSA_TAG_DRIVER(ksz9477_netdev_ops);
-- 
Christian Eggers
Embedded software developer

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