From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4EC122DF141; Thu, 16 Oct 2025 14:38:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760625505; cv=none; b=mZU5W/qu5rMb8XRCWfHJW2TXVTVEBsryz/zpfdagHk/gTqPybuyTQfm/JBzd47+i7Mt5lXMWanJ2HIQNld+N29W2W8fPtOPM8KwnGB/+utmMn7nS3rSUFx/pMa1NSi3zJH0dkFlJPji5kL0lT6hPMh3xvOK2O4UKH/IuUb23Hfg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760625505; c=relaxed/simple; bh=PULsZ1BIli04ioW64kfTsGK3k8KKo0RnGDOES+VREOQ=; h=In-Reply-To:References:From:To:Cc:Subject:MIME-Version: Content-Disposition:Content-Type:Message-Id:Date; b=q4DvKRar0ZgXGt/i1AiURuqfeW6pEPndclK348CWVyyLAJtnfS2H5xz3uq88RzFdkfa02f3mrGigmvB7VcpsesnqZ3es1N+QTSP6i8keRlvTd2aJ6IQNhzSi/5PhjtGG0T8YOQHqU6j6nfMMlpSjx811Im94CuwFQLAWw1XY1vE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=WWebn4u/; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="WWebn4u/" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=9Jl76mOvRJKc/2xXTvxwq45QUJ4bT7prUSyDdd8lphI=; b=WWebn4u/p2i/PkUCo9DYCqluAl pSI17FKyYsgmDKjQBm24EosjwU8fg5/4qyfQbYWouzxv0/PTfrx9NABnQWeqR7qhGIdFRYN+q/TpD rplIo0JTAJcOTmjalVAIoH4dYU+1IVjRDwMbDuGleKBqKKx3Xg7XDwPTS+Z8/hUKY9wkYyDXn305H K5F197v2SnGFJJvjWK5kgDwhH2rn9Bf9XppIkvV986eBlfbaKuL2ttlYDtLu7xBSKNWpfDq/QsAT6 oKvVylbbQfSQiULUoQoOSpcaheHqpSwGy+vBqan0iE4B65avGuQbDwPg71wkW8Pc6xBO9CVNXasZS 7+1b3I/Q==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:40660 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1v9P6L-000000006Qw-0MkA; Thu, 16 Oct 2025 15:37:10 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1v9P6I-0000000Aola-3Sih; Thu, 16 Oct 2025 15:37:06 +0100 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: Abhishek Chauhan , Alexandre Torgue , Alexis Lothore , Andrew Lunn , Boon Khai Ng , Daniel Machon , "David S. Miller" , Drew Fustini , Emil Renner Berthing , Eric Dumazet , Faizal Rahim , Furong Xu <0x1207@gmail.com>, Inochi Amaoto , Jacob Keller , Jakub Kicinski , "Jan Petrous (OSS)" , Jisheng Zhang , Kees Cook , Kunihiko Hayashi , Lad Prabhakar , Ley Foon Tan , linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Matthew Gerlach , Maxime Chevallier , Maxime Coquelin , Michal Swiatkowski , netdev@vger.kernel.org, Oleksij Rempel , Paolo Abeni , Rohan G Thomas , Shenwei Wang , Simon Horman , Song Yoong Siang , Swathi K S , Tiezhu Yang , Vinod Koul , Vladimir Oltean , Vladimir Oltean , Yu-Chun Lin Subject: [PATCH net-next v2 05/14] net: stmmac: remove unused PCS loopback support Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="utf-8" Message-Id: Sender: Russell King Date: Thu, 16 Oct 2025 15:37:06 +0100 Nothing calls stmmac_pcs_ctrl_ane() with the "loopback" argument set to anything except zero, so this serves no useful purpose. Remove the argument to reduce the code complexity. Reviewed-by: Andrew Lunn Signed-off-by: Russell King (Oracle) --- drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 2 +- drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 4 ++-- drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 5 ++--- drivers/net/ethernet/stmicro/stmmac/hwif.h | 4 ++-- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h | 6 +----- 6 files changed, 9 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c index f62825220cf7..32244217d952 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c @@ -622,7 +622,7 @@ static void ethqos_set_serdes_speed(struct qcom_ethqos *ethqos, int speed) static void ethqos_pcs_set_inband(struct stmmac_priv *priv, bool enable) { - stmmac_pcs_ctrl_ane(priv, enable, 0, 0); + stmmac_pcs_ctrl_ane(priv, enable, 0); } /* On interface toggle MAC registers gets reset. diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index 654331b411f4..5c653be3d453 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -358,9 +358,9 @@ static void dwmac1000_set_eee_timer(struct mac_device_info *hw, int ls, int tw) } static void dwmac1000_ctrl_ane(struct stmmac_priv *priv, bool ane, - bool srgmi_ral, bool loopback) + bool srgmi_ral) { - dwmac_ctrl_ane(priv->ioaddr, GMAC_PCS_BASE, ane, srgmi_ral, loopback); + dwmac_ctrl_ane(priv->ioaddr, GMAC_PCS_BASE, ane, srgmi_ral); } static void dwmac1000_debug(struct stmmac_priv *priv, void __iomem *ioaddr, diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c index bff4c371c1d2..21e4461db937 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -583,10 +583,9 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex, } } -static void dwmac4_ctrl_ane(struct stmmac_priv *priv, bool ane, bool srgmi_ral, - bool loopback) +static void dwmac4_ctrl_ane(struct stmmac_priv *priv, bool ane, bool srgmi_ral) { - dwmac_ctrl_ane(priv->ioaddr, GMAC_PCS_BASE, ane, srgmi_ral, loopback); + dwmac_ctrl_ane(priv->ioaddr, GMAC_PCS_BASE, ane, srgmi_ral); } static int dwmac4_irq_mtl_status(struct stmmac_priv *priv, diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h index 14dbe0685997..7796f5f3c96f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/hwif.h +++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h @@ -374,8 +374,8 @@ struct stmmac_ops { struct stmmac_extra_stats *x, u32 rx_queues, u32 tx_queues); /* PCS calls */ - void (*pcs_ctrl_ane)(struct stmmac_priv *priv, bool ane, bool srgmi_ral, - bool loopback); + void (*pcs_ctrl_ane)(struct stmmac_priv *priv, bool ane, + bool srgmi_ral); /* Safety Features */ int (*safety_feat_config)(void __iomem *ioaddr, unsigned int asp, struct stmmac_safety_feature_cfg *safety_cfg); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 87a9d36f47a9..6252e30ff82d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -3493,7 +3493,7 @@ static int stmmac_hw_setup(struct net_device *dev) } if (priv->hw->pcs) - stmmac_pcs_ctrl_ane(priv, 1, priv->hw->ps, 0); + stmmac_pcs_ctrl_ane(priv, 1, priv->hw->ps); /* set TX and RX rings length */ stmmac_set_rings_length(priv); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h b/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h index 4a684c97dfae..5778f5b2f313 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pcs.h @@ -82,13 +82,12 @@ static inline void dwmac_pcs_isr(void __iomem *ioaddr, u32 reg, * @reg: Base address of the AN Control Register. * @ane: to enable the auto-negotiation * @srgmi_ral: to manage MAC-2-MAC SGMII connections. - * @loopback: to cause the PHY to loopback tx data into rx path. * Description: this is the main function to configure the AN control register * and init the ANE, select loopback (usually for debugging purpose) and * configure SGMII RAL. */ static inline void dwmac_ctrl_ane(void __iomem *ioaddr, u32 reg, bool ane, - bool srgmi_ral, bool loopback) + bool srgmi_ral) { u32 value = readl(ioaddr + GMAC_AN_CTRL(reg)); @@ -104,9 +103,6 @@ static inline void dwmac_ctrl_ane(void __iomem *ioaddr, u32 reg, bool ane, if (srgmi_ral) value |= GMAC_AN_CTRL_SGMRAL; - if (loopback) - value |= GMAC_AN_CTRL_ELE; - writel(value, ioaddr + GMAC_AN_CTRL(reg)); } #endif /* __STMMAC_PCS_H__ */ -- 2.47.3