netdev - Re: [PATCH] net: forcedeth: Give bot handlers a helping hand understanding the code

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Date:   Tue, 11 May 2021 21:48:11 +0800
From:   "Leizhen (ThunderTown)" <thunder.leizhen@...wei.com>
To:     Andrew Lunn <andrew@...n.ch>, Jakub Kicinski <kuba@...nel.org>
CC:     netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH] net: forcedeth: Give bot handlers a helping hand
 understanding the code



On 2021/5/11 20:43, Andrew Lunn wrote:
> Bots handlers repeatedly fail to understand nv_update_linkspeed() and
> submit patches unoptimizing it for the human reader. Add a comment to
> try to prevent this in the future.
> 
> Signed-off-by: Andrew Lunn <andrew@...n.ch>
> ---
>  drivers/net/ethernet/nvidia/forcedeth.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
> index 8724d6a9ed02..0822b28f3b6a 100644
> --- a/drivers/net/ethernet/nvidia/forcedeth.c
> +++ b/drivers/net/ethernet/nvidia/forcedeth.c
> @@ -3475,6 +3475,9 @@ static int nv_update_linkspeed(struct net_device *dev)
>  		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
>  		newdup = 0;
>  	} else {
> +		/* Default to the same as 10/Half if we cannot
> +		 * determine anything else.
> +		 */
I think it would be better to remove the if branch above and then add comments here.
Otherwise, it becomes more and more redundant.

>  		newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10;
>  		newdup = 0;
>  	}
>