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Message-ID: <20231119122527.ccp56obhpofvc3vo@skbuf> Date: Sun, 19 Nov 2023 14:25:27 +0200 From: Vladimir Oltean <olteanv@...il.com> To: Arınç ÜNAL <arinc.unal@...nc9.com> Cc: Daniel Golle <daniel@...rotopia.org>, Landen Chao <Landen.Chao@...iatek.com>, DENG Qingfang <dqfext@...il.com>, Sean Wang <sean.wang@...iatek.com>, Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Matthias Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, Frank Wunderlich <frank-w@...lic-files.de>, Bartel Eerdekens <bartel.eerdekens@...stell8.be>, mithat.guner@...ont.com, erkin.bozoglu@...ont.com Subject: Re: [PATCH net-next 01/15] net: dsa: mt7530: always trap frames to active CPU port on MT7530 On Sat, Nov 18, 2023 at 03:31:51PM +0300, Arınç ÜNAL wrote: > +static void > +mt753x_conduit_state_change(struct dsa_switch *ds, > + const struct net_device *conduit, > + bool operational) > +{ > + struct mt7530_priv *priv = ds->priv; > + struct dsa_port *cpu_dp = conduit->dsa_ptr; nitpick: reverse Christmas tree variable ordering > + > + /* Set the CPU port to trap frames to for MT7530. Trapped frames will be > + * forwarded to the numerically smallest CPU port which the DSA conduit > + * interface its affine to is up. > + */ > + if (priv->id != ID_MT7530 && priv->id != ID_MT7621) > + return; > + > + if (operational) > + priv->active_cpu_ports |= BIT(cpu_dp->index); > + else > + priv->active_cpu_ports &= ~BIT(cpu_dp->index); > + > + if (priv->active_cpu_ports) > + mt7530_rmw(priv, MT7530_MFC, CPU_EN | CPU_PORT_MASK, CPU_EN | > + CPU_PORT(__ffs(priv->active_cpu_ports))); > +}
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