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Date: Fri, 18 Nov 2022 11:16:26 +0000 From: "Russell King (Oracle)" <linux@...linux.org.uk> To: "Goh, Wei Sheng" <wei.sheng.goh@...el.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>, Alexandre Torgue <alexandre.torgue@...com>, Jose Abreu <joabreu@...opsys.com>, "David S . Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Maxime Coquelin <mcoquelin.stm32@...il.com>, netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Ong Boon Leong <boon.leong.ong@...el.com>, Voon Wei Feng <weifeng.voon@...el.com>, Tan Tee Min <tee.min.tan@...el.com>, Ahmad Tarmizi Noor Azura <noor.azura.ahmad.tarmizi@...el.com>, Looi Hong Aun <hong.aun.looi@...el.com> Subject: Re: [PATCH net] net: stmmac: Set MAC's flow control register to reflect current settings On Fri, Nov 18, 2022 at 03:20:51PM +0800, Goh, Wei Sheng wrote: > diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > index 8273e6a175c8..ab7f48f32f5b 100644 > --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > @@ -1061,8 +1061,16 @@ static void stmmac_mac_link_up(struct phylink_config *config, > ctrl |= priv->hw->link.duplex; > > /* Flow Control operation */ > - if (tx_pause && rx_pause) > - stmmac_mac_flow_ctrl(priv, duplex); > + if (rx_pause && tx_pause) > + priv->flow_ctrl = FLOW_AUTO; > + else if (rx_pause && !tx_pause) > + priv->flow_ctrl = FLOW_RX; > + else if (!rx_pause && tx_pause) > + priv->flow_ctrl = FLOW_TX; > + else if (!rx_pause && !tx_pause) > + priv->flow_ctrl = FLOW_OFF; Since "if (!rx_pause && !tx_pause)" will always be true at this point, you can eliminate this needless last condition, which will make the code a little more readable. Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
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