linux-kernel - Re: [PATCH] usb: chipidea: Fix unused ci_hdrc_usb2_of_match warning for !CONFIG

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Message-ID: <20231020015547.GA1119400@nchen-desktop>
Date:   Fri, 20 Oct 2023 09:55:47 +0800
From:   Peter Chen <peter.chen@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        kernel test robot <lkp@...el.com>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: chipidea: Fix unused ci_hdrc_usb2_of_match warning
 for !CONFIG_OF

On 23-10-19 13:30:15, Rob Herring wrote:
> Commit 14485de431b0 ("usb: Use device_get_match_data()") dropped the
> unconditional use of ci_hdrc_usb2_of_match resulting in this warning:
> 
> drivers/usb/chipidea/ci_hdrc_usb2.c:41:34: warning: unused variable 'ci_hdrc_usb2_of_match' [-Wunused-const-variable]
> 
> The fix is to drop of_match_ptr() which is not necessary because DT is
> always used for this driver.
> 
> Fixes: 14485de431b0 ("usb: Use device_get_match_data()")
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202310131627.M43j234A-lkp@intel.com/
> Signed-off-by: Rob Herring <robh@...nel.org>

Acked-by: Peter Chen <peter.chen@...nel.org>

> ---
>  drivers/usb/chipidea/ci_hdrc_usb2.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/chipidea/ci_hdrc_usb2.c b/drivers/usb/chipidea/ci_hdrc_usb2.c
> index 180a632dd7ba..97379f653b06 100644
> --- a/drivers/usb/chipidea/ci_hdrc_usb2.c
> +++ b/drivers/usb/chipidea/ci_hdrc_usb2.c
> @@ -119,7 +119,7 @@ static struct platform_driver ci_hdrc_usb2_driver = {
>  	.remove_new = ci_hdrc_usb2_remove,
>  	.driver	= {
>  		.name		= "chipidea-usb2",
> -		.of_match_table	= of_match_ptr(ci_hdrc_usb2_of_match),
> +		.of_match_table	= ci_hdrc_usb2_of_match,
>  	},
>  };
>  module_platform_driver(ci_hdrc_usb2_driver);
> -- 
> 2.42.0
> 

-- 

Thanks,
Peter Chen