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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2023-04-02 15:37:51 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-04-03 12:04:26 +0300 |
| commit | 4ee58e1e56800b589afe31c34547e2bc0c59f586 (patch) | |
| tree | 8128f514e351f6a9fa4ba17cef103840d0062233 /net/core | |
| parent | 1193db2a55b6b04f296f03affdfa80c16ecc3814 (diff) | |
| download | linux-4ee58e1e56800b589afe31c34547e2bc0c59f586.tar.xz | |
net: promote SIOCSHWTSTAMP and SIOCGHWTSTAMP ioctls to dedicated handlers
DSA does not want to intercept all ioctls handled by dev_eth_ioctl(),
only SIOCSHWTSTAMP. This can be seen from commit f685e609a301 ("net:
dsa: Deny PTP on master if switch supports it"). However, the way in
which the dsa_ndo_eth_ioctl() is called would suggest otherwise.
Split the handling of SIOCSHWTSTAMP and SIOCGHWTSTAMP ioctls into
separate case statements of dev_ifsioc(), and make each one call its own
sub-function. This also removes the dsa_ndo_eth_ioctl() call from
dev_eth_ioctl(), which from now on exclusively handles PHY ioctls.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev_ioctl.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c index b299fb23fcfa..3b1402f6897c 100644 --- a/net/core/dev_ioctl.c +++ b/net/core/dev_ioctl.c @@ -246,20 +246,34 @@ static int dev_eth_ioctl(struct net_device *dev, struct ifreq *ifr, unsigned int cmd) { const struct net_device_ops *ops = dev->netdev_ops; + + if (!ops->ndo_eth_ioctl) + return -EOPNOTSUPP; + + if (!netif_device_present(dev)) + return -ENODEV; + + return ops->ndo_eth_ioctl(dev, ifr, cmd); +} + +static int dev_get_hwtstamp(struct net_device *dev, struct ifreq *ifr) +{ + return dev_eth_ioctl(dev, ifr, SIOCGHWTSTAMP); +} + +static int dev_set_hwtstamp(struct net_device *dev, struct ifreq *ifr) +{ int err; - err = dsa_ndo_eth_ioctl(dev, ifr, cmd); - if (err != -EOPNOTSUPP) + err = net_hwtstamp_validate(ifr); + if (err) return err; - if (ops->ndo_eth_ioctl) { - if (netif_device_present(dev)) - err = ops->ndo_eth_ioctl(dev, ifr, cmd); - else - err = -ENODEV; - } + err = dsa_ndo_eth_ioctl(dev, ifr, SIOCSHWTSTAMP); + if (err != -EOPNOTSUPP) + return err; - return err; + return dev_eth_ioctl(dev, ifr, SIOCSHWTSTAMP); } static int dev_siocbond(struct net_device *dev, @@ -395,12 +409,11 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data, return dev_siocdevprivate(dev, ifr, data, cmd); case SIOCSHWTSTAMP: - err = net_hwtstamp_validate(ifr); - if (err) - return err; - fallthrough; + return dev_set_hwtstamp(dev, ifr); case SIOCGHWTSTAMP: + return dev_get_hwtstamp(dev, ifr); + case SIOCGMIIPHY: case SIOCGMIIREG: case SIOCSMIIREG: |