linux-kernel - Re: [PATCH -next] ibmvnic: remove set but not used variable 'netdev'

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Date:   Wed, 3 Apr 2019 14:36:53 +0530
From:   Mukesh Ojha <mojha@...eaurora.org>
To:     Yue Haibing <yuehaibing@...wei.com>, davem@...emloft.net,
        benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
        tlfalcon@...ux.ibm.com, jallen@...ux.ibm.com
Cc:     linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH -next] ibmvnic: remove set but not used variable 'netdev'


On 4/3/2019 1:24 PM, Yue Haibing wrote:
> From: YueHaibing <yuehaibing@...wei.com>
>
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/net/ethernet/ibm/ibmvnic.c: In function '__ibmvnic_reset':
> drivers/net/ethernet/ibm/ibmvnic.c:1971:21: warning: variable 'netdev' set but not used [-Wunused-but-set-variable]
>
> It's never used since introduction in
> commit ed651a10875f ("ibmvnic: Updated reset handling")
>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
Reviewed-by: Mukesh Ojha <mojha@...eaurora.org>

Cheers,
-Mukesh
> ---
>   drivers/net/ethernet/ibm/ibmvnic.c | 2 --
>   1 file changed, 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
> index 25b8e04..20c4e08 100644
> --- a/drivers/net/ethernet/ibm/ibmvnic.c
> +++ b/drivers/net/ethernet/ibm/ibmvnic.c
> @@ -1968,13 +1968,11 @@ static void __ibmvnic_reset(struct work_struct *work)
>   {
>   	struct ibmvnic_rwi *rwi;
>   	struct ibmvnic_adapter *adapter;
> -	struct net_device *netdev;
>   	bool we_lock_rtnl = false;
>   	u32 reset_state;
>   	int rc = 0;
>   
>   	adapter = container_of(work, struct ibmvnic_adapter, ibmvnic_reset);
> -	netdev = adapter->netdev;
>   
>   	/* netif_set_real_num_xx_queues needs to take rtnl lock here
>   	 * unless wait_for_reset is set, in which case the rtnl lock