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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>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Jose Abreu <joabreu@synopsys.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>
Subject: [PATCH net-next v4 16/18] net: stmmac: remove unnecessary EEE handling in stmmac_release()
Date: Wed, 08 Jan 2025 16:48:50 +0000	[thread overview]
Message-ID: <E1tVZEg-0002LE-HH@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <Z36sHIlnExQBuFJE@shell.armlinux.org.uk>

phylink_stop() will cause phylink to call the mac_link_down() operation
before phylink_stop() returns. As mac_link_down() will call
stmmac_eee_init(false), this will set both priv->eee_active and
priv->eee_enabled to be false, deleting the eee_ctrl_timer if
priv->eee_enabled was previously set.

As stmmac_release() calls phylink_stop() before checking whether
priv->eee_enabled is true, this is a condition that can never be
satisfied, and thus the code within this if() block will never be
executed. Remove it.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 57338794695c..6d01dcafaf15 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4033,11 +4033,6 @@ static int stmmac_release(struct net_device *dev)
 	/* Free the IRQ lines */
 	stmmac_free_irq(dev, REQ_IRQ_ERR_ALL, 0);
 
-	if (priv->eee_enabled) {
-		priv->tx_path_in_lpi_mode = false;
-		del_timer_sync(&priv->eee_ctrl_timer);
-	}
-
 	/* Stop TX/RX DMA and clear the descriptors */
 	stmmac_stop_all_dma(priv);
 
-- 
2.30.2



  parent reply	other threads:[~2025-01-08 17:19 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-08 16:47 [PATCH net-next v4 00/18] net: stmmac: clean up and fix EEE implementation Russell King (Oracle)
2025-01-08 16:47 ` [PATCH net-next v4 01/18] net: phy: add configuration of rx clock stop mode Russell King (Oracle)
2025-01-08 16:47 ` [PATCH net-next v4 02/18] net: stmmac: move tx_lpi_timer tracking to phylib Russell King (Oracle)
2025-01-08 16:47 ` [PATCH net-next v4 03/18] net: stmmac: use correct type for tx_lpi_timer Russell King (Oracle)
2025-01-08 16:47 ` [PATCH net-next v4 04/18] net: stmmac: use unsigned int for eee_timer Russell King (Oracle)
2025-01-08 16:47 ` [PATCH net-next v4 05/18] net: stmmac: make EEE depend on phy->enable_tx_lpi Russell King (Oracle)
2025-01-08 16:47 ` [PATCH net-next v4 06/18] net: stmmac: remove redundant code from ethtool EEE ops Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 07/18] net: stmmac: clean up stmmac_disable_eee_mode() Russell King (Oracle)
2025-01-08 20:25   ` Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 08/18] net: stmmac: remove priv->tx_lpi_enabled Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 09/18] net: stmmac: report EEE error statistics if EEE is supported Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 10/18] net: stmmac: convert to use phy_eee_rx_clock_stop() Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 11/18] net: stmmac: remove priv->eee_tw_timer Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 12/18] net: stmmac: move priv->eee_enabled into stmmac_eee_init() Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 13/18] net: stmmac: move priv->eee_active " Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 14/18] net: stmmac: use boolean for eee_enabled and eee_active Russell King (Oracle)
2025-01-08 16:48 ` [PATCH net-next v4 15/18] net: stmmac: move setup of eee_ctrl_timer to stmmac_dvr_probe() Russell King (Oracle)
2025-01-08 16:48 ` Russell King (Oracle) [this message]
2025-01-08 16:48 ` [PATCH net-next v4 17/18] net: stmmac: split hardware LPI timer control Russell King (Oracle)
2025-01-08 16:49 ` [PATCH net-next v4 18/18] net: stmmac: remove stmmac_lpi_entry_timer_config() Russell King (Oracle)
2025-01-11  2:10 ` [PATCH net-next v4 00/18] net: stmmac: clean up and fix EEE implementation patchwork-bot+netdevbpf

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