linux-kernel - Re: [PATCH -next] sample/mdev/mbochs: remove set but not used variable 'mdev

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Date:   Tue, 2 Jul 2019 12:02:17 -0600
From:   Alex Williamson <alex.williamson@...hat.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     <kwankhede@...dia.com>, <linux-kernel@...r.kernel.org>,
        <kvm@...r.kernel.org>
Subject: Re: [PATCH -next] sample/mdev/mbochs: remove set but not used
 variable 'mdev_state'

On Sat, 25 May 2019 21:53:49 +0800
YueHaibing <yuehaibing@...wei.com> wrote:

> Fixes gcc '-Wunused-but-set-variable' warning:
> 
> samples/vfio-mdev/mbochs.c: In function mbochs_ioctl:
> samples/vfio-mdev/mbochs.c:1188:21: warning: variable mdev_state set but not used [-Wunused-but-set-variable]
> 
> It's not used any more since commit 104c7405a64d ("vfio:
> add edid support to mbochs sample driver")
> 
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  samples/vfio-mdev/mbochs.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/samples/vfio-mdev/mbochs.c b/samples/vfio-mdev/mbochs.c
> index b038aa9f5a70..ac5c8c17b1ff 100644
> --- a/samples/vfio-mdev/mbochs.c
> +++ b/samples/vfio-mdev/mbochs.c
> @@ -1185,9 +1185,6 @@ static long mbochs_ioctl(struct mdev_device *mdev, unsigned int cmd,
>  {
>  	int ret = 0;
>  	unsigned long minsz, outsz;
> -	struct mdev_state *mdev_state;
> -
> -	mdev_state = mdev_get_drvdata(mdev);
>  
>  	switch (cmd) {
>  	case VFIO_DEVICE_GET_INFO:

Applied to vfio next branch for 5.3.  Thanks!

Alex