netdev - Re: [PATCH] net: hsr: Use full string description when opening HSR network device

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Message-ID: <3f2fc5cb-8c79-4e8a-b72e-edcbbc78971e@lunn.ch>
Date: Mon, 4 Mar 2024 15:24:55 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Lukasz Majewski <lukma@...x.de>
Cc: Oleksij Rempel <o.rempel@...gutronix.de>,
	Eric Dumazet <edumazet@...gle.com>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
	Tristram.Ha@...rochip.com,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Paolo Abeni <pabeni@...hat.com>,
	Ravi Gunasekaran <r-gunasekaran@...com>,
	Nikita Zhandarovich <n.zhandarovich@...tech.ru>,
	Murali Karicheri <m-karicheri2@...com>,
	Ziyang Xuan <william.xuanziyang@...wei.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: hsr: Use full string description when opening HSR
 network device

On Mon, Mar 04, 2024 at 10:32:20AM +0100, Lukasz Majewski wrote:
> Up till now only single character ('A' or 'B') was used to provide
> information of HSR slave network device status.
> 
> As it is also possible and valid, that Interlink network device may
> be supported as well, the description must be more verbose. As a result
> the full string description is now used.
> 
> Signed-off-by: Lukasz Majewski <lukma@...x.de>
> ---
>  net/hsr/hsr_device.c | 13 ++++++-------
>  1 file changed, 6 insertions(+), 7 deletions(-)
> 
> diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
> index 9d71b66183da..9a60489fba96 100644
> --- a/net/hsr/hsr_device.c
> +++ b/net/hsr/hsr_device.c
> @@ -142,30 +142,29 @@ static int hsr_dev_open(struct net_device *dev)
>  {
>  	struct hsr_priv *hsr;
>  	struct hsr_port *port;
> -	char designation;
> +	char *designation = NULL;

Thanks for splitting this into a patch.

Reverse Christmas tree. I know it is broken already, but we should not
make it worse.

I guess you can also add a const, since "Slave A" is probably const.

	Andrew