From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8DF6F4431 for ; Wed, 15 Mar 2023 12:34:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1022AC433EF; Wed, 15 Mar 2023 12:34:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678883687; bh=iTu6i0ivTDFW4n53srIoidGvDoKyRZbECsO5tKEL0AI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fDm16HZG8F7d1lfOP5Fz1yV3C0UHUXNUk7Me1gA24bceEECl3ibmgeHJcxuVTkipY qMg/H7vx4Z99/VwFlmep1/raFJ7xd8YfRDDz+/SiVogU83M4z+FSxRIpZatHGLSZq6 4Z9Zm6tFdNCdbcx3/SC5x/K2zT094fKASFI1jfcw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Heiner Kallweit , "David S. Miller" , Sasha Levin Subject: [PATCH 6.1 094/143] net: phy: smsc: fix link up detection in forced irq mode Date: Wed, 15 Mar 2023 13:13:00 +0100 Message-Id: <20230315115743.374150728@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230315115740.429574234@linuxfoundation.org> References: <20230315115740.429574234@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Heiner Kallweit [ Upstream commit 58aac3a2ef414fea6d7fdf823ea177744a087d13 ] Currently link up can't be detected in forced mode if polling isn't used. Only link up interrupt source we have is aneg complete which isn't applicable in forced mode. Therefore we have to use energy-on as link up indicator. Fixes: 7365494550f6 ("net: phy: smsc: skip ENERGYON interrupt if disabled") Signed-off-by: Heiner Kallweit Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/phy/smsc.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c index ac7481ce2fc16..00d9eff91dcfa 100644 --- a/drivers/net/phy/smsc.c +++ b/drivers/net/phy/smsc.c @@ -44,7 +44,6 @@ static struct smsc_hw_stat smsc_hw_stats[] = { }; struct smsc_phy_priv { - u16 intmask; bool energy_enable; }; @@ -57,7 +56,6 @@ static int smsc_phy_ack_interrupt(struct phy_device *phydev) static int smsc_phy_config_intr(struct phy_device *phydev) { - struct smsc_phy_priv *priv = phydev->priv; int rc; if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { @@ -65,14 +63,9 @@ static int smsc_phy_config_intr(struct phy_device *phydev) if (rc) return rc; - priv->intmask = MII_LAN83C185_ISF_INT4 | MII_LAN83C185_ISF_INT6; - if (priv->energy_enable) - priv->intmask |= MII_LAN83C185_ISF_INT7; - - rc = phy_write(phydev, MII_LAN83C185_IM, priv->intmask); + rc = phy_write(phydev, MII_LAN83C185_IM, + MII_LAN83C185_ISF_INT_PHYLIB_EVENTS); } else { - priv->intmask = 0; - rc = phy_write(phydev, MII_LAN83C185_IM, 0); if (rc) return rc; @@ -85,7 +78,6 @@ static int smsc_phy_config_intr(struct phy_device *phydev) static irqreturn_t smsc_phy_handle_interrupt(struct phy_device *phydev) { - struct smsc_phy_priv *priv = phydev->priv; int irq_status; irq_status = phy_read(phydev, MII_LAN83C185_ISF); @@ -96,7 +88,7 @@ static irqreturn_t smsc_phy_handle_interrupt(struct phy_device *phydev) return IRQ_NONE; } - if (!(irq_status & priv->intmask)) + if (!(irq_status & MII_LAN83C185_ISF_INT_PHYLIB_EVENTS)) return IRQ_NONE; phy_trigger_machine(phydev); -- 2.39.2