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authorHeiner Kallweit <hkallweit1@gmail.com>2019-02-05 20:41:37 +0100
committerDavid S. Miller <davem@davemloft.net>2019-02-06 19:46:49 -0800
commita6e11f6bbd29a92d1357c2f3033a70fb1b767432 (patch)
treef0a684d83cb537dbfbd6106bf48c1d97339e2dd9 /drivers/net
parentnet: stmmac: fix ptp timestamping on Rx on gmac4 (diff)
downloadlinux-dev-a6e11f6bbd29a92d1357c2f3033a70fb1b767432.tar.xz
linux-dev-a6e11f6bbd29a92d1357c2f3033a70fb1b767432.zip
net: phy: improve genphy_c45_read_link
Let's make genphy_c45_read_link behave the same as genphy_update_link and set phydev->link in the function directly. This allows to simplify the callers. In addition don't check further devices once we detect that at least one device reports link as down. v2: - remove an unused variable Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/phy/marvell10g.c2
-rw-r--r--drivers/net/phy/phy-c45.c15
2 files changed, 6 insertions, 11 deletions
diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index 5531f9cabc63..296a537cdfcb 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -457,8 +457,6 @@ static int mv3310_read_status(struct phy_device *phydev)
if (val < 0)
return val;
- phydev->link = val > 0 ? 1 : 0;
-
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
if (val < 0)
return val;
diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index 519866679c91..c92d0fb7ec4f 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -121,7 +121,7 @@ EXPORT_SYMBOL_GPL(genphy_c45_aneg_done);
* @mmd_mask: MMDs to read status from
*
* Read the link status from the specified MMDs, and if they all indicate
- * that the link is up, return positive. If an error is encountered,
+ * that the link is up, set phydev->link to 1. If an error is encountered,
* a negative errno will be returned, otherwise zero.
*/
int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask)
@@ -129,7 +129,7 @@ int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask)
int val, devad;
bool link = true;
- while (mmd_mask) {
+ while (mmd_mask && link) {
devad = __ffs(mmd_mask);
mmd_mask &= ~BIT(devad);
@@ -145,7 +145,9 @@ int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask)
link = false;
}
- return link;
+ phydev->link = link;
+
+ return 0;
}
EXPORT_SYMBOL_GPL(genphy_c45_read_link);
@@ -265,7 +267,6 @@ EXPORT_SYMBOL_GPL(gen10g_config_aneg);
int gen10g_read_status(struct phy_device *phydev)
{
u32 mmd_mask = phydev->c45_ids.devices_in_package;
- int ret;
/* For now just lie and say it's 10G all the time */
phydev->speed = SPEED_10000;
@@ -274,11 +275,7 @@ int gen10g_read_status(struct phy_device *phydev)
/* Avoid reading the vendor MMDs */
mmd_mask &= ~(BIT(MDIO_MMD_VEND1) | BIT(MDIO_MMD_VEND2));
- ret = genphy_c45_read_link(phydev, mmd_mask);
-
- phydev->link = ret > 0 ? 1 : 0;
-
- return 0;
+ return genphy_c45_read_link(phydev, mmd_mask);
}
EXPORT_SYMBOL_GPL(gen10g_read_status);