linux-kernel - Re: [PATCH] fpga: dfl: afu: remove set but not used variable 'afu'

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Message-ID: <20191230015312.GB6839@hao-dev>
Date:   Mon, 30 Dec 2019 09:53:12 +0800
From:   Wu Hao <hao.wu@...el.com>
To:     Moritz Fischer <mdf@...nel.org>
Cc:     yu kuai <yukuai3@...wei.com>, linux-fpga@...r.kernel.org,
        linux-kernel@...r.kernel.org, yi.zhang@...we.com,
        zhengbin13@...wei.com
Subject: Re: [PATCH] fpga: dfl: afu: remove set but not used variable 'afu'

On Fri, Dec 27, 2019 at 02:58:09PM -0800, Moritz Fischer wrote:
> On Thu, Dec 26, 2019 at 08:15:33PM +0800, yu kuai wrote:
> > Fixes gcc '-Wunused-but-set-variable' warning:
> > 
> > drivers/fpga/dfl-afu-main.c: In function ‘afu_dev_destroy’:
> > drivers/fpga/dfl-afu-main.c:816:18: warning: variable ‘afu’
> > set but not used [-Wunused-but-set-variable]
> > 
> > It is never used, and so can be removed.
> > 
> > Signed-off-by: yu kuai <yukuai3@...wei.com>
> > ---
> >  drivers/fpga/dfl-afu-main.c | 2 --
> >  1 file changed, 2 deletions(-)
> > 
> > diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
> > index e4a34dc7947f..65437b6a6842 100644
> > --- a/drivers/fpga/dfl-afu-main.c
> > +++ b/drivers/fpga/dfl-afu-main.c
> > @@ -813,10 +813,8 @@ static int afu_dev_init(struct platform_device *pdev)
> >  static int afu_dev_destroy(struct platform_device *pdev)
> >  {
> >  	struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
> > -	struct dfl_afu *afu;
> >  
> >  	mutex_lock(&pdata->lock);
> > -	afu = dfl_fpga_pdata_get_private(pdata);
> >  	afu_mmio_region_destroy(pdata);
> >  	afu_dma_region_destroy(pdata);
> >  	dfl_fpga_pdata_set_private(pdata, NULL);
> > -- 
> > 2.17.2
> > 
> Acked-by: Moritz Fischer <mdf@...nel.org>
> 
> I'll get to the patches in the new year.

Thanks Kuai and Moritz. :)

Acked-by: Wu Hao <hao.wu@...el.com>

Hao
> 
> Thanks,
> Moritz