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authorRichard Cochran <richardcochran@gmail.com>2018-02-23 18:25:46 +0300
committerDavid S. Miller <davem@davemloft.net>2018-03-01 21:26:14 +0300
commite31a6f9067e3c30da1bea26ce2d1355af9577d13 (patch)
tree291648bfcd28dc881c4ccc3dd0fbe10dad631a7d
parentba6078081caae5bebbd34844ee2cf6c52aa7daec (diff)
downloadlinux-e31a6f9067e3c30da1bea26ce2d1355af9577d13.tar.xz
net: phylink: Remove redundant netdev.phydev assignment
As a part of working on MII time stamping infrastructure, I was trying to figure out how netdev->phydev gets assigned, and I stumbled across this. Ever since the new phylink code came in, the field is assigned twice. The function, phylink_connect_phy(), calls phy_attach_direct() phylink_bringup_phy() and phy_attach_direct() sets dev->phydev = phydev; but phylink_bringup_phy() then sets the same field again: pl->netdev->phydev = phy; Similarly, the function, phylink_of_phy_connect(), calls of_phy_attach() phy_attach_direct() phylink_bringup_phy() The removal code is also duplicated: phylink_disconnect_phy() pl->netdev->phydev = NULL; phy_disconnect() phy_detach() phydev->attached_dev->phydev = NULL; This patch removes the redundant assignments, restricting manipulation of the netdev.phydev field to phy_attach_direct() and phy_detach(). Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/phy/phylink.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 27327c917a59..7d1724072325 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -679,7 +679,6 @@ static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy)
mutex_lock(&phy->lock);
mutex_lock(&pl->state_mutex);
- pl->netdev->phydev = phy;
pl->phydev = phy;
linkmode_copy(pl->supported, supported);
linkmode_copy(pl->link_config.advertising, config.advertising);
@@ -817,7 +816,6 @@ void phylink_disconnect_phy(struct phylink *pl)
if (phy) {
mutex_lock(&phy->lock);
mutex_lock(&pl->state_mutex);
- pl->netdev->phydev = NULL;
pl->phydev = NULL;
mutex_unlock(&pl->state_mutex);
mutex_unlock(&phy->lock);