netdev - [PATCH RFC net-next 6/6] net: stmmac: remove old pcs interrupt functions

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Message-Id: <E1s6C4i-00Ck6n-Oe@rmk-PC.armlinux.org.uk>
Date: Sun, 12 May 2024 17:29:24 +0100
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Serge Semin <fancer.lancer@...il.com>
Cc: Alexandre Torgue <alexandre.torgue@...s.st.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
Subject: [PATCH RFC net-next 6/6] net: stmmac: remove old pcs interrupt
 functions

Remove the old pcs interrupt functions which are no longer required and
the now unused pcs_speed, pcs_duplex and pcs_link members of
struct stmmac_extra_stats.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/common.h  |  3 --
 .../ethernet/stmicro/stmmac/dwmac1000_core.c  | 35 +------------------
 .../net/ethernet/stmicro/stmmac/dwmac4_core.c | 35 +------------------
 3 files changed, 2 insertions(+), 71 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 82d0d897019c..1fac8d31121a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -191,9 +191,6 @@ struct stmmac_extra_stats {
 	unsigned long irq_pcs_ane_n;
 	unsigned long irq_pcs_link_n;
 	unsigned long irq_rgmii_n;
-	unsigned long pcs_link;
-	unsigned long pcs_duplex;
-	unsigned long pcs_speed;
 	/* debug register */
 	unsigned long mtl_tx_status_fifo_full;
 	unsigned long mtl_tx_fifo_not_empty;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
index 05143fa7aa6c..adb872d5719f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
@@ -262,39 +262,6 @@ static void dwmac1000_pmt(struct mac_device_info *hw, unsigned long mode)
 	writel(pmt, ioaddr + GMAC_PMT);
 }
 
-/* RGMII or SMII interface */
-static void dwmac1000_rgsmii(void __iomem *ioaddr, struct stmmac_extra_stats *x)
-{
-	u32 status;
-
-	status = readl(ioaddr + GMAC_RGSMIIIS);
-	x->irq_rgmii_n++;
-
-	/* Check the link status */
-	if (status & GMAC_RGSMIIIS_LNKSTS) {
-		int speed_value;
-
-		x->pcs_link = 1;
-
-		speed_value = ((status & GMAC_RGSMIIIS_SPEED) >>
-			       GMAC_RGSMIIIS_SPEED_SHIFT);
-		if (speed_value == GMAC_RGSMIIIS_SPEED_125)
-			x->pcs_speed = SPEED_1000;
-		else if (speed_value == GMAC_RGSMIIIS_SPEED_25)
-			x->pcs_speed = SPEED_100;
-		else
-			x->pcs_speed = SPEED_10;
-
-		x->pcs_duplex = (status & GMAC_RGSMIIIS_LNKMOD_MASK);
-
-		pr_info("Link is Up - %d/%s\n", (int)x->pcs_speed,
-			x->pcs_duplex ? "Full" : "Half");
-	} else {
-		x->pcs_link = 0;
-		pr_info("Link is Down\n");
-	}
-}
-
 static int dwmac1000_irq_status(struct mac_device_info *hw,
 				struct stmmac_extra_stats *x)
 {
@@ -338,7 +305,7 @@ static int dwmac1000_irq_status(struct mac_device_info *hw,
 
 	if (intr_status & PCS_RGSMIIIS_IRQ) {
 		phylink_pcs_change(&hw->mac_pcs, false);
-		dwmac1000_rgsmii(ioaddr, x);
+		x->irq_rgmii_n++;
 	}
 
 	return ret;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index e70cca85548a..a892d361a4e4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -753,39 +753,6 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
 	}
 }
 
-/* RGMII or SMII interface */
-static void dwmac4_phystatus(void __iomem *ioaddr, struct stmmac_extra_stats *x)
-{
-	u32 status;
-
-	status = readl(ioaddr + GMAC_PHYIF_CONTROL_STATUS);
-	x->irq_rgmii_n++;
-
-	/* Check the link status */
-	if (status & GMAC_PHYIF_CTRLSTATUS_LNKSTS) {
-		int speed_value;
-
-		x->pcs_link = 1;
-
-		speed_value = ((status & GMAC_PHYIF_CTRLSTATUS_SPEED) >>
-			       GMAC_PHYIF_CTRLSTATUS_SPEED_SHIFT);
-		if (speed_value == GMAC_PHYIF_CTRLSTATUS_SPEED_125)
-			x->pcs_speed = SPEED_1000;
-		else if (speed_value == GMAC_PHYIF_CTRLSTATUS_SPEED_25)
-			x->pcs_speed = SPEED_100;
-		else
-			x->pcs_speed = SPEED_10;
-
-		x->pcs_duplex = (status & GMAC_PHYIF_CTRLSTATUS_LNKMOD_MASK);
-
-		pr_info("Link is Up - %d/%s\n", (int)x->pcs_speed,
-			x->pcs_duplex ? "Full" : "Half");
-	} else {
-		x->pcs_link = 0;
-		pr_info("Link is Down\n");
-	}
-}
-
 static int dwmac4_mii_pcs_validate(struct phylink_pcs *pcs,
 				   unsigned long *supported,
 				   const struct phylink_link_state *state)
@@ -930,7 +897,7 @@ static int dwmac4_irq_status(struct mac_device_info *hw,
 	dwmac_pcs_isr(ioaddr, GMAC_PCS_BASE, intr_status, x);
 	if (intr_status & PCS_RGSMIIIS_IRQ) {
 		phylink_pcs_change(&hw->mac_pcs, false);
-		dwmac4_phystatus(ioaddr, x);
+		x->irq_rgmii_n++;
 	}
 
 	return ret;
-- 
2.30.2