linux-kernel - Re: [net PATCH 1/2] net: dsa: qca8k: fix inband mgmt for big-endian systems

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Message-ID: <20221012072717.nuybkswd7zuwvqsp@skbuf>
Date:   Wed, 12 Oct 2022 10:27:17 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Pawel Dembicki <paweldembicki@...il.com>,
        Lech Perczak <lech.perczak@...il.com>
Subject: Re: [net PATCH 1/2] net: dsa: qca8k: fix inband mgmt for big-endian
 systems

On Mon, Oct 10, 2022 at 01:14:58PM +0200, Christian Marangi wrote:
> The header and the data of the skb for the inband mgmt requires
> to be in little-endian. This is problematic for big-endian system
> as the mgmt header is written in the cpu byte order.
> 
> Fix this by converting each value for the mgmt header and data to
> little-endian, and convert to cpu byte order the mgmt header and
> data sent by the switch.

By any chance, is the endianness of the data configurable?