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net: phylink: add phylink_link_is_up() helper

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Add a helper to determine whether the link is up or down. Currently
this is only used in one location, but becomes necessary to test
when reconfiguring EEE.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/E1tYADl-0014Ph-EV@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Russell King (Oracle) 2025-01-15 20:42:37 +00:00 • committed by Jakub Kicinski
parent a00e0d34c0
commit a17ceec62f
1 changed files with 6 additions and 5 deletions
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11
drivers/net/phy/phylink.c
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@ -1651,20 +1651,21 @@ static void phylink_link_down(struct phylink *pl)
phylink_info(pl, "Link is Down\n");
}
static bool phylink_link_is_up(struct phylink *pl)
{
return pl->netdev ? netif_carrier_ok(pl->netdev) : pl->old_link_state;
}
static void phylink_resolve(struct work_struct *w)
{
struct phylink *pl = container_of(w, struct phylink, resolve);
struct phylink_link_state link_state;
struct net_device *ndev = pl->netdev;
bool mac_config = false;
bool retrigger = false;
bool cur_link_state;
mutex_lock(&pl->state_mutex);
if (pl->netdev)
cur_link_state = netif_carrier_ok(ndev);
else
cur_link_state = pl->old_link_state;
cur_link_state = phylink_link_is_up(pl);
if (pl->phylink_disable_state) {
pl->link_failed = false;