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authorHeiner Kallweit <hkallweit1@gmail.com>2025-10-25 20:49:50 +0200
committerJakub Kicinski <kuba@kernel.org>2025-10-29 19:00:34 -0700
commit26888de97b2ffe0267c12dd4e9fcd552545903f1 (patch)
tree927e9c0716ca4a7d1b11430622f407208b20fb9f /drivers/net
parentcf35f4347ddd42ceca156e57a87ec489788f1bd7 (diff)
net: phy: add iterator mdiobus_for_each_phy
Add an iterator for all PHY's on a MII bus, and phy_find_next() as a prerequisite. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Wei Fang <wei.fang@nxp.com> Link: https://patch.msgid.link/cd112f15-401a-43d9-8525-9ff0965a68cd@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/phy/phy_device.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index b7feaf0cb1df..737747cf1906 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1224,22 +1224,24 @@ int phy_get_c45_ids(struct phy_device *phydev)
EXPORT_SYMBOL(phy_get_c45_ids);
/**
- * phy_find_first - finds the first PHY device on the bus
+ * phy_find_next - finds the next PHY device on the bus
* @bus: the target MII bus
+ * @pos: cursor
+ *
+ * Return: next phy_device on the bus, or NULL
*/
-struct phy_device *phy_find_first(struct mii_bus *bus)
+struct phy_device *phy_find_next(struct mii_bus *bus, struct phy_device *pos)
{
- struct phy_device *phydev;
- int addr;
+ for (int addr = pos ? pos->mdio.addr + 1 : 0;
+ addr < PHY_MAX_ADDR; addr++) {
+ struct phy_device *phydev = mdiobus_get_phy(bus, addr);
- for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
- phydev = mdiobus_get_phy(bus, addr);
if (phydev)
return phydev;
}
return NULL;
}
-EXPORT_SYMBOL(phy_find_first);
+EXPORT_SYMBOL_GPL(phy_find_next);
/**
* phy_prepare_link - prepares the PHY layer to monitor link status