mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 17:18:59 +00:00
e842e16f45
- Refresh all patches - Removed upstreamed - Adapted 1 Compile tested on: bcm53xx, cns3xxx, imx6, lantiq Run tested on: cns3xxx & imx6 Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com> [update from 4.9.28 to 4.9.29] Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
53 lines
1.8 KiB
Diff
53 lines
1.8 KiB
Diff
From: Russell King <rmk+kernel@armlinux.org.uk>
|
|
Date: Wed, 4 Jan 2017 21:00:51 +0000
|
|
Subject: [PATCH] net: phy: avoid setting unsupported EEE advertisments
|
|
|
|
We currently allow userspace to set any EEE advertisments it desires,
|
|
whether or not the PHY supports them. For example:
|
|
|
|
# ethtool --set-eee eth1 advertise 0xffffffff
|
|
# ethtool --show-eee eth1
|
|
EEE Settings for eth1:
|
|
EEE status: disabled
|
|
Tx LPI: disabled
|
|
Supported EEE link modes: 100baseT/Full
|
|
1000baseT/Full
|
|
10000baseT/Full
|
|
Advertised EEE link modes: 100baseT/Full
|
|
1000baseT/Full
|
|
1000baseKX/Full
|
|
10000baseT/Full
|
|
10000baseKX4/Full
|
|
10000baseKR/Full
|
|
|
|
Clearly, this is not sane, we should only allow link modes that are
|
|
supported to be advertised (as we do elsewhere.) Ensure that we mask
|
|
the MDIO_AN_EEE_ADV value with the capabilities retrieved from the
|
|
MDIO_PCS_EEE_ABLE register.
|
|
|
|
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
|
|
---
|
|
|
|
--- a/drivers/net/phy/phy.c
|
|
+++ b/drivers/net/phy/phy.c
|
|
@@ -1343,11 +1343,16 @@ EXPORT_SYMBOL(phy_ethtool_get_eee);
|
|
*/
|
|
int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data)
|
|
{
|
|
- int val = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
|
|
+ int cap, adv;
|
|
|
|
- phy_write_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, val);
|
|
+ /* Get Supported EEE */
|
|
+ cap = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_PCS_EEE_ABLE);
|
|
+ if (cap < 0)
|
|
+ return cap;
|
|
|
|
- return 0;
|
|
+ adv = ethtool_adv_to_mmd_eee_adv_t(data->advertised) & cap;
|
|
+
|
|
+ return phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_EEE_ADV, adv);
|
|
}
|
|
EXPORT_SYMBOL(phy_ethtool_set_eee);
|
|
|