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From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Andrew Lunn <andrew@lunn.ch>, Heiner Kallweit <hkallweit1@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	bpf@vger.kernel.org, Daniel Borkmann <daniel@iogearbox.net>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Jesper Dangaard Brouer <hawk@kernel.org>,
	John Fastabend <john.fastabend@gmail.com>,
	Jon Hunter <jonathanh@nvidia.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-stm32@st-md-mailman.stormreply.com,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>,
	Thierry Reding <treding@nvidia.com>
Subject: [PATCH net-next v2 4/4] net: stmmac: leave enabling _RE and _TE to stmmac_mac_link_up()
Date: Fri, 02 May 2025 14:35:47 +0100	[thread overview]
Message-ID: <E1uAqYN-002D41-53@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <aBTKOBKnhoz3rrlQ@shell.armlinux.org.uk>

We only need to enable the MAC receiver and transmiter only when the
link has come up.

With commit "net: stmmac: move phylink_resume() after resume setup
is complete" we move the race between stmmac_mac_link_up() and
stmmac_hw_setup(), ensuring that stmmac_mac_link_up() happens
afterwards. This patch is a pre-requisit of this change.

Remove the unnecessary call to stmmac_mac_set(, true) in
stmmac_hw_setup().

Tested-by: Furong Xu <0x1207@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index ac27ea679b23..ef2a08342b25 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -3533,9 +3533,6 @@ static int stmmac_hw_setup(struct net_device *dev, bool ptp_register)
 		priv->hw->rx_csum = 0;
 	}
 
-	/* Enable the MAC Rx/Tx */
-	stmmac_mac_set(priv, priv->ioaddr, true);
-
 	/* Set the HW DMA mode and the COE */
 	stmmac_dma_operation_mode(priv);
 
-- 
2.30.2


      parent reply	other threads:[~2025-05-02 13:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-02 13:35 [PATCH net-next v2 0/4] net: stmmac: fix setting RE and TE inappropriately Russell King (Oracle)
2025-05-02 13:35 ` [PATCH net-next v2 1/4] net: phylink: add ability to block carrier up Russell King (Oracle)
2025-05-02 15:12   ` Andrew Lunn
2025-05-02 13:35 ` [PATCH net-next v2 2/4] net: stmmac: call phylink_carrier_*() in XDP functions Russell King (Oracle)
2025-05-02 15:29   ` Andrew Lunn
2025-05-02 17:54     ` Russell King (Oracle)
2025-05-06  8:36       ` Russell King (Oracle)
2025-05-06  8:40         ` Russell King (Oracle)
2025-05-06 15:25           ` Jakub Kicinski
2025-05-02 13:35 ` [PATCH net-next v2 3/4] net: stmmac: remove _RE and _TE in (start|stop)_(tx|rx)() methods Russell King (Oracle)
2025-05-02 13:35 ` Russell King (Oracle) [this message]

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