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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.19 08/13] net: phy: broadcom: Only advertise EEE for supported modes
Date: Thu, 15 Apr 2021 16:47:57 +0200	[thread overview]
Message-ID: <20210415144411.873197197@linuxfoundation.org> (raw)
In-Reply-To: <20210415144411.596695196@linuxfoundation.org>

From: Florian Fainelli <f.fainelli@gmail.com>

commit c056d480b40a68f2520ccc156c7fae672d69d57d upstream

We should not be advertising EEE for modes that we do not support,
correct that oversight by looking at the PHY device supported linkmodes.

Fixes: 99cec8a4dda2 ("net: phy: broadcom: Allow enabling or disabling of EEE")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/bcm-phy-lib.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

--- a/drivers/net/phy/bcm-phy-lib.c
+++ b/drivers/net/phy/bcm-phy-lib.c
@@ -198,7 +198,7 @@ EXPORT_SYMBOL_GPL(bcm_phy_enable_apd);
 
 int bcm_phy_set_eee(struct phy_device *phydev, bool enable)
 {
-	int val;
+	int val, mask = 0;
 
 	/* Enable EEE at PHY level */
 	val = phy_read_mmd(phydev, MDIO_MMD_AN, BRCM_CL45VEN_EEE_CONTROL);
@@ -217,10 +217,15 @@ int bcm_phy_set_eee(struct phy_device *p
 	if (val < 0)
 		return val;
 
+	if (phydev->supported & SUPPORTED_1000baseT_Full)
+		mask |= MDIO_EEE_1000T;
+	if (phydev->supported & SUPPORTED_100baseT_Full)
+		mask |= MDIO_EEE_100TX;
+
 	if (enable)
-		val |= (MDIO_EEE_100TX | MDIO_EEE_1000T);
+		val |= mask;
 	else
-		val &= ~(MDIO_EEE_100TX | MDIO_EEE_1000T);
+		val &= ~mask;
 
 	phy_write_mmd(phydev, MDIO_MMD_AN, BCM_CL45VEN_EEE_ADV, (u32)val);
 



  parent reply	other threads:[~2021-04-15 15:09 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-15 14:47 [PATCH 4.19 00/13] 4.19.188-rc1 review Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 01/13] KVM: arm64: Hide system instruction access to Trace registers Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 02/13] KVM: arm64: Disable guest access to trace filter controls Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 03/13] drm/imx: imx-ldb: fix out of bounds array access warning Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 04/13] gfs2: report "already frozen/thawed" errors Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 05/13] drm/tegra: dc: Dont set PLL clock to 0Hz Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 06/13] block: only update parent bi_status when bio fail Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 07/13] riscv,entry: fix misaligned base for excp_vect_table Greg Kroah-Hartman
2021-04-15 14:47 ` Greg Kroah-Hartman [this message]
2021-04-15 14:47 ` [PATCH 4.19 09/13] staging: m57621-mmc: delete driver from the tree Greg Kroah-Hartman
2021-04-15 14:47 ` [PATCH 4.19 10/13] netfilter: x_tables: fix compat match/target pad out-of-bound write Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 4.19 11/13] driver core: Fix locking bug in deferred_probe_timeout_work_func() Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 4.19 12/13] perf map: Tighten snprintf() string precision to pass gcc check on some 32-bit arches Greg Kroah-Hartman
2021-04-15 14:48 ` [PATCH 4.19 13/13] xen/events: fix setting irq affinity Greg Kroah-Hartman
2021-04-15 19:13 ` [PATCH 4.19 00/13] 4.19.188-rc1 review Pavel Machek
2021-04-15 22:43 ` Shuah Khan
2021-04-16  9:49 ` Naresh Kamboju
2021-04-16  9:52 ` Samuel Zou
2021-04-16 20:01 ` Sudip Mukherjee

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