linux-kernel - Re: [PATCH net-next] net: dsa: sja1105: remove set but not used variables 'tx_vid' and 'rx

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Message-ID: <CA+h21hrrWGrw4kiTfjowWvQ-B6sNPLAcgTaaadA02ZAmYw1SjQ@mail.gmail.com>
Date:   Wed, 7 Aug 2019 16:19:45 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        lkml <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next] net: dsa: sja1105: remove set but not used
 variables 'tx_vid' and 'rx_vid'

On Wed, 7 Aug 2019 at 16:09, YueHaibing <yuehaibing@...wei.com> wrote:
>
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/net/dsa/sja1105/sja1105_main.c: In function sja1105_fdb_dump:
> drivers/net/dsa/sja1105/sja1105_main.c:1226:14: warning:
>  variable tx_vid set but not used [-Wunused-but-set-variable]
> drivers/net/dsa/sja1105/sja1105_main.c:1226:6: warning:
>  variable rx_vid set but not used [-Wunused-but-set-variable]
>
> They are not used since commit 6d7c7d948a2e ("net: dsa:
> sja1105: Fix broken learning with vlan_filtering disabled")
>
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---

Reviewed-by: Vladimir Oltean <olteanv@...il.com>

>  drivers/net/dsa/sja1105/sja1105_main.c | 4 ----
>  1 file changed, 4 deletions(-)
>
> diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c
> index d073baf..df976b25 100644
> --- a/drivers/net/dsa/sja1105/sja1105_main.c
> +++ b/drivers/net/dsa/sja1105/sja1105_main.c
> @@ -1223,12 +1223,8 @@ static int sja1105_fdb_dump(struct dsa_switch *ds, int port,
>  {
>         struct sja1105_private *priv = ds->priv;
>         struct device *dev = ds->dev;
> -       u16 rx_vid, tx_vid;
>         int i;
>
> -       rx_vid = dsa_8021q_rx_vid(ds, port);
> -       tx_vid = dsa_8021q_tx_vid(ds, port);
> -
>         for (i = 0; i < SJA1105_MAX_L2_LOOKUP_COUNT; i++) {
>                 struct sja1105_l2_lookup_entry l2_lookup = {0};
>                 u8 macaddr[ETH_ALEN];
> --
> 2.7.4
>
>