2023-02-20 13:57:02

by Oleksij Rempel

Subject: [PATCH net-next v1 1/4] net: phy: c45: use "supported_eee" instead of supported for access validation

Make use we use proper variable to validate access to potentially not
supported registers. Otherwise we will get false read/write errors.

Fixes: 022c3f87f88e ("net: phy: add genphy_c45_ethtool_get/set_eee() support")
Signed-off-by: Oleksij Rempel <[email protected]>
---
drivers/net/phy/phy-c45.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index f9b128cecc3f..f23cce2c5199 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -674,7 +674,7 @@ int genphy_c45_write_eee_adv(struct phy_device *phydev, unsigned long *adv)
{
int val, changed;

- if (linkmode_intersects(phydev->supported, PHY_EEE_CAP1_FEATURES)) {
+ if (linkmode_intersects(phydev->supported_eee, PHY_EEE_CAP1_FEATURES)) {
val = linkmode_to_mii_eee_cap1_t(adv);

/* In eee_broken_modes are stored MDIO_AN_EEE_ADV specific raw
@@ -726,7 +726,7 @@ static int genphy_c45_read_eee_adv(struct phy_device *phydev,
{
int val;

- if (linkmode_intersects(phydev->supported, PHY_EEE_CAP1_FEATURES)) {
+ if (linkmode_intersects(phydev->supported_eee, PHY_EEE_CAP1_FEATURES)) {
/* IEEE 802.3-2018 45.2.7.13 EEE advertisement 1
* (Register 7.60)
*/
@@ -762,7 +762,7 @@ static int genphy_c45_read_eee_lpa(struct phy_device *phydev,
{
int val;

- if (linkmode_intersects(phydev->supported, PHY_EEE_CAP1_FEATURES)) {
+ if (linkmode_intersects(phydev->supported_eee, PHY_EEE_CAP1_FEATURES)) {
/* IEEE 802.3-2018 45.2.7.14 EEE link partner ability 1
* (Register 7.61)
*/
--
2.30.2

2023-02-20 14:10:34

by Russell King (Oracle)

Subject: Re: [PATCH net-next v1 1/4] net: phy: c45: use "supported_eee" instead of supported for access validation

On Mon, Feb 20, 2023 at 02:56:02PM +0100, Oleksij Rempel wrote:
> Make use we use proper variable to validate access to potentially not
> supported registers. Otherwise we will get false read/write errors.
>
> Fixes: 022c3f87f88e ("net: phy: add genphy_c45_ethtool_get/set_eee() support")
> Signed-off-by: Oleksij Rempel <[email protected]>

Looks good to me.

Reviewed-by: Russell King (Oracle) <[email protected]>

Thanks!

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