linux-kernel - Re: [PATCH] usb: dwc2: Fix unused label warning

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Date:   Mon, 2 Nov 2020 07:04:29 +0000
From:   Minas Harutyunyan <Minas.Harutyunyan@...opsys.com>
To:     YueHaibing <yuehaibing@...wei.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
CC:     "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb: dwc2: Fix unused label warning

On 10/31/2020 10:03 AM, YueHaibing wrote:
> drivers/usb/dwc2/platform.c: In function ‘dwc2_driver_probe’:
> drivers/usb/dwc2/platform.c:611:1: warning: label ‘error_debugfs’ defined but not used [-Wunused-label]
>   error_debugfs:
>   ^~~~~~~~~~~~~
> 
> Move label 'error_debugfs' to ifdef block.
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>   drivers/usb/dwc2/platform.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
> index e2820676beb1..5f18acac7406 100644
> --- a/drivers/usb/dwc2/platform.c
> +++ b/drivers/usb/dwc2/platform.c
> @@ -608,10 +608,13 @@ static int dwc2_driver_probe(struct platform_device *dev)
>   #endif /* CONFIG_USB_DWC2_PERIPHERAL || CONFIG_USB_DWC2_DUAL_ROLE */
>   	return 0;
>   
> +#if IS_ENABLED(CONFIG_USB_DWC2_PERIPHERAL) || \
> +	IS_ENABLED(CONFIG_USB_DWC2_DUAL_ROLE)
>   error_debugfs:
>   	dwc2_debugfs_exit(hsotg);
>   	if (hsotg->hcd_enabled)
>   		dwc2_hcd_remove(hsotg);
> +#endif
>   error_drd:
>   	dwc2_drd_exit(hsotg);
>   
> 
Thank you for patch. Identical patch submitted by on 10/17/2020 by 
Martin Blumenstingl: [PATCH] usb: dwc2: Avoid leaving the error_debugfs 
label unused. I'm already ACKed it.
Thanks,
Minas