netdev - Re: [PATCH V5 net-next 6/6] net: hns3: remove the way to set tx spare buf via module parameter

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Date:   Sat, 30 Oct 2021 20:05:58 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Guangbin Huang <huangguangbin2@...wei.com>
Cc:     davem@...emloft.net, kuba@...nel.org, mkubecek@...e.cz,
        amitc@...lanox.com, idosch@...sch.org, danieller@...dia.com,
        jesse.brandeburg@...el.com, anthony.l.nguyen@...el.com,
        jdike@...toit.com, richard@....at, anton.ivanov@...bridgegreys.com,
        netanel@...zon.com, akiyano@...zon.com, gtzalik@...zon.com,
        saeedb@...zon.com, chris.snook@...il.com,
        ulli.kroll@...glemail.com, linus.walleij@...aro.org,
        jeroendb@...gle.com, csully@...gle.com, awogbemila@...gle.com,
        jdmason@...zu.us, rain.1986.08.12@...il.com, zyjzyj2000@...il.com,
        kys@...rosoft.com, haiyangz@...rosoft.com, mst@...hat.com,
        jasowang@...hat.com, doshir@...are.com, pv-drivers@...are.com,
        jwi@...ux.ibm.com, kgraul@...ux.ibm.com, hca@...ux.ibm.com,
        gor@...ux.ibm.com, johannes@...solutions.net,
        netdev@...r.kernel.org, lipeng321@...wei.com,
        chenhao288@...ilicon.com, linux-s390@...r.kernel.org
Subject: Re: [PATCH V5 net-next 6/6] net: hns3: remove the way to set tx
 spare buf via module parameter

On Sat, Oct 30, 2021 at 09:10:01PM +0800, Guangbin Huang wrote:
> From: Hao Chen <chenhao288@...ilicon.com>
> 
> The way to set tx spare buf via module parameter is not such
> convenient as the way to set it via ethtool.
> 
> So,remove the way to set tx spare buf via module parameter.
> 
> Signed-off-by: Hao Chen <chenhao288@...ilicon.com>
> Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
> ---
>  drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> index 076631d7727d..032547a2ad2f 100644
> --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
> @@ -53,10 +53,6 @@ static int debug = -1;
>  module_param(debug, int, 0);
>  MODULE_PARM_DESC(debug, " Network interface message level setting");
>  
> -static unsigned int tx_spare_buf_size;
> -module_param(tx_spare_buf_size, uint, 0400);
> -MODULE_PARM_DESC(tx_spare_buf_size, "Size used to allocate tx spare buffer");
> -

This might be considered ABI. By removing it, are you breaking users
setup?

	Andrew