linux-kernel - Re: [PATCH 1/2] USB: storage: ums-realtek: Rename module parameter auto_delink_en to auto_delink

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Date:   Mon, 26 Aug 2019 06:53:15 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Kai-Heng Feng <kai.heng.feng@...onical.com>
Cc:     stern@...land.harvard.edu, linux-usb@...r.kernel.org,
        usb-storage@...ts.one-eyed-alien.net, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] USB: storage: ums-realtek: Rename module parameter
 auto_delink_en to auto_delink_mode

On Mon, Aug 26, 2019 at 12:46:29PM +0800, Kai-Heng Feng wrote:
> The option named "auto_delink_en" is a bit misleading, as setting it to
> false doesn't really disable auto-delink but let auto-delink be firmware
> controlled.
> 
> Rename it to reflect the real usage of this parameter.
> 
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> ---
>  drivers/usb/storage/realtek_cr.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
> index cc794e25a0b6..4d86cfcc0b40 100644
> --- a/drivers/usb/storage/realtek_cr.c
> +++ b/drivers/usb/storage/realtek_cr.c
> @@ -36,9 +36,9 @@ MODULE_DESCRIPTION("Driver for Realtek USB Card Reader");
>  MODULE_AUTHOR("wwang <wei_wang@...lsil.com.cn>");
>  MODULE_LICENSE("GPL");
>  
> -static int auto_delink_en = 1;
> -module_param(auto_delink_en, int, S_IRUGO | S_IWUSR);
> -MODULE_PARM_DESC(auto_delink_en, "enable auto delink");
> +static int auto_delink_mode = 1;
> +module_param(auto_delink_mode, int, S_IRUGO | S_IWUSR);
> +MODULE_PARM_DESC(auto_delink_mode, "auto delink mode (0=firmware, 1=software [default])");

We can not just rename module parameters, as that will break working
systems that have their startup scripts using those names :(

sorry,

greg k-h