Only set the devices_in_package to a non-zero value if we find a valid
value for this field, so we avoid leaving it set to e.g. 0x1fffffff.
Signed-off-by: Russell King <rmk+ker...@armlinux.org.uk>
---
drivers/net/phy/phy_device.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index fa9164ac0f3d..a483d79cfc87 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -730,13 +730,13 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr,
u32 *phy_id,
struct phy_c45_device_ids *c45_ids)
{
const int num_ids = ARRAY_SIZE(c45_ids->device_ids);
- u32 *devs = &c45_ids->devices_in_package;
+ u32 devs_in_pkg = 0;
int i, ret, phy_reg;
/* Find first non-zero Devices In package. Device zero is reserved
* for 802.3 c45 complied PHYs, so don't probe it at first.
*/
- for (i = 1; i < MDIO_MMD_NUM && *devs == 0; i++) {
+ for (i = 1; i < MDIO_MMD_NUM && devs_in_pkg == 0; i++) {
if (i >= 8) {
/* Only probe for the devices-in-package if there
* is a PHY reporting as present here; this avoids
@@ -750,22 +750,22 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr,
u32 *phy_id,
if (!ret)
continue;
}
- phy_reg = get_phy_c45_devs_in_pkg(bus, addr, i, devs);
+ phy_reg = get_phy_c45_devs_in_pkg(bus, addr, i, &devs_in_pkg);
if (phy_reg < 0)
return -EIO;
}
- if ((*devs & 0x1fffffff) == 0x1fffffff) {
+ if ((devs_in_pkg & 0x1fffffff) == 0x1fffffff) {
/* If mostly Fs, there is no device there, then let's probe
* MMD 0, as some 10G PHYs have zero Devices In package,
* e.g. Cortina CS4315/CS4340 PHY.
*/
- phy_reg = get_phy_c45_devs_in_pkg(bus, addr, 0, devs);
+ phy_reg = get_phy_c45_devs_in_pkg(bus, addr, 0, &devs_in_pkg);
if (phy_reg < 0)
return -EIO;
/* no device there, let's get out of here */
- if ((*devs & 0x1fffffff) == 0x1fffffff) {
+ if ((devs_in_pkg & 0x1fffffff) == 0x1fffffff) {
*phy_id = 0xffffffff;
return 0;
}
@@ -773,7 +773,7 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr,
u32 *phy_id,
/* Now probe Device Identifiers for each device present. */
for (i = 1; i < num_ids; i++) {
- if (!(c45_ids->devices_in_package & (1 << i)))
+ if (!(devs_in_pkg & (1 << i)))
continue;
phy_reg = mdiobus_c45_read(bus, addr, i, MII_PHYSID1);
@@ -786,6 +786,9 @@ static int get_phy_c45_ids(struct mii_bus *bus, int addr,
u32 *phy_id,
return -EIO;
c45_ids->device_ids[i] |= phy_reg;
}
+
+ c45_ids->devices_in_package = devs_in_pkg;
+
*phy_id = 0;
return 0;
}
--
2.20.1
