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+h21hpt1UghzkdQ-x5k37T=SZ8Hc1euV11WyHPrYVCF-rq+Uw@mail.gmail.com>
Date:   Wed, 7 Aug 2019 16:20:49 +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 16:19, Vladimir Oltean <olteanv@...il.com> wrote:
>
> 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>

This patch should also go to the "net" tree.

>
> >  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
> >
> >