linux-kernel - Re: [PATCH] fpga: xilinx-pr-decoupler: Fix unused xlnx_pr_decoupler_of_match warning for !CONFIG

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Date:   Fri, 13 Oct 2023 17:36:13 +0800
From:   Xu Yilun <yilun.xu@...ux.intel.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Moritz Fischer <mdf@...nel.org>, Wu Hao <hao.wu@...el.com>,
        Xu Yilun <yilun.xu@...el.com>, Tom Rix <trix@...hat.com>,
        Michal Simek <michal.simek@....com>,
        kernel test robot <lkp@...el.com>,
        linux-fpga@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fpga: xilinx-pr-decoupler: Fix unused
 xlnx_pr_decoupler_of_match warning for !CONFIG_OF

On Thu, Oct 12, 2023 at 02:21:48PM -0500, Rob Herring wrote:
> Commit 8c966aadcc02 ("fpga: Use device_get_match_data()") dropped the

Hi rob:

Unfortunately I re-applied Commit 8c966aadcc02 and the previous commit
id is lost.

Since the 2 patches are not upstreamed yet, could I just merge them into
one?

Thanks,
Yilun

> unconditional use of xlnx_pr_decoupler_of_match resulting in this
> warning:
> 
> drivers/fpga/xilinx-pr-decoupler.c:94:34: warning: unused variable 'xlnx_pr_decoupler_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.
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202310100247.Y7BFcalX-lkp@intel.com/
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
>  drivers/fpga/xilinx-pr-decoupler.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/fpga/xilinx-pr-decoupler.c b/drivers/fpga/xilinx-pr-decoupler.c
> index 0c012d0f616d..68835896f180 100644
> --- a/drivers/fpga/xilinx-pr-decoupler.c
> +++ b/drivers/fpga/xilinx-pr-decoupler.c
> @@ -167,7 +167,7 @@ static struct platform_driver xlnx_pr_decoupler_driver = {
>  	.remove = xlnx_pr_decoupler_remove,
>  	.driver = {
>  		.name = "xlnx_pr_decoupler",
> -		.of_match_table = of_match_ptr(xlnx_pr_decoupler_of_match),
> +		.of_match_table = xlnx_pr_decoupler_of_match,
>  	},
>  };
>  
> -- 
> 2.42.0
>