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

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Date:   Mon, 10 Oct 2022 20:53:01 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...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

>  /* Special struct emulating a Ethernet header */
>  struct qca_mgmt_ethhdr {
> -	u32 command;		/* command bit 31:0 */
> -	u32 seq;		/* seq 63:32 */
> -	u32 mdio_data;		/* first 4byte mdio */
> +	__le32 command;		/* command bit 31:0 */
> +	__le32 seq;		/* seq 63:32 */
> +	__le32 mdio_data;		/* first 4byte mdio */
>  	__be16 hdr;		/* qca hdr */
>  } __packed;

It looks odd that hdr is BE while the rest are LE. Did you check this?

   Andrew