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ethtool: switch back from ethtool_keee to ethtool_eee for ioctl

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In order to later extend struct ethtool_keee, we have to decouple it
from the userspace format represented by struct ethtool_eee.
Therefore switch back to struct ethtool_eee, representing the userspace
format, and add conversion between ethtool_eee and ethtool_keee.
Struct ethtool_keee will be changed in follow-up patches, therefore
don't do a *keee = *eee here.
Member cmd isn't copied, because it's not used, and we'll remove
it in the next patch of this series. In addition omit setting cmd
to ETHTOOL_GEEE in the ioctl response, userspace ethtool isn't
interested in it.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiner Kallweit 2024-01-27 14:26:06 +01:00 committed by David S. Miller
parent d80a523353
commit 0b3100bc8f
1 changed files with 39 additions and 9 deletions
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48
net/ethtool/ioctl.c
View file

@ -1508,22 +1508,50 @@ static int ethtool_set_wol(struct net_device *dev, char __user *useraddr)
return 0;
}
static void eee_to_keee(struct ethtool_keee *keee,
const struct ethtool_eee *eee)
{
memset(keee, 0, sizeof(*keee));
keee->supported = eee->supported;
keee->advertised = eee->advertised;
keee->lp_advertised = eee->lp_advertised;
keee->eee_active = eee->eee_active;
keee->eee_enabled = eee->eee_enabled;
keee->tx_lpi_enabled = eee->tx_lpi_enabled;
keee->tx_lpi_timer = eee->tx_lpi_timer;
}
static void keee_to_eee(struct ethtool_eee *eee,
const struct ethtool_keee *keee)
{
memset(eee, 0, sizeof(*eee));
eee->supported = keee->supported;
eee->advertised = keee->advertised;
eee->lp_advertised = keee->lp_advertised;
eee->eee_active = keee->eee_active;
eee->eee_enabled = keee->eee_enabled;
eee->tx_lpi_enabled = keee->tx_lpi_enabled;
eee->tx_lpi_timer = keee->tx_lpi_timer;
}
static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
{
struct ethtool_keee edata;
struct ethtool_keee keee;
struct ethtool_eee eee;
int rc;
if (!dev->ethtool_ops->get_eee)
return -EOPNOTSUPP;
memset(&edata, 0, sizeof(struct ethtool_keee));
edata.cmd = ETHTOOL_GEEE;
rc = dev->ethtool_ops->get_eee(dev, &edata);
memset(&keee, 0, sizeof(keee));
rc = dev->ethtool_ops->get_eee(dev, &keee);
if (rc)
return rc;
if (copy_to_user(useraddr, &edata, sizeof(edata)))
keee_to_eee(&eee, &keee);
if (copy_to_user(useraddr, &eee, sizeof(eee)))
return -EFAULT;
return 0;
@ -1531,16 +1559,18 @@ static int ethtool_get_eee(struct net_device *dev, char __user *useraddr)
static int ethtool_set_eee(struct net_device *dev, char __user *useraddr)
{
struct ethtool_keee edata;
struct ethtool_keee keee;
struct ethtool_eee eee;
int ret;
if (!dev->ethtool_ops->set_eee)
return -EOPNOTSUPP;
if (copy_from_user(&edata, useraddr, sizeof(edata)))
if (copy_from_user(&eee, useraddr, sizeof(eee)))
return -EFAULT;
ret = dev->ethtool_ops->set_eee(dev, &edata);
eee_to_keee(&keee, &eee);
ret = dev->ethtool_ops->set_eee(dev, &keee);
if (!ret)
ethtool_notify(dev, ETHTOOL_MSG_EEE_NTF, NULL);
return ret;