[RFC net-next 18/28] cxgb3: use ndo_siocdevprivate

[Arnd Bergmann]

From: Arnd Bergmann <a...@arndb.de>

cxgb3 has a private multiplexor that works correctly in compat
mode, split out the siocdevprivate callback from do_ioctl for
simplification.

Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c 
b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index 84ad7261e243..c79a70d370bd 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -2135,13 +2135,18 @@ static int in_range(int val, int lo, int hi)
        return val < 0 || (val <= hi && val >= lo);
 }
 
-static int cxgb_extension_ioctl(struct net_device *dev, void __user *useraddr)
+static int cxgb_siocdevprivate(struct net_device *dev,
+                              struct ifreq *ifreq,
+                              void __user *useraddr,
+                              int cmd)
 {
        struct port_info *pi = netdev_priv(dev);
        struct adapter *adapter = pi->adapter;
-       u32 cmd;
        int ret;
 
+       if (cmd != SIOCCHIOCTL)
+               return -EOPNOTSUPP;
+
        if (copy_from_user(&cmd, useraddr, sizeof(cmd)))
                return -EFAULT;
 
@@ -2546,8 +2551,6 @@ static int cxgb_ioctl(struct net_device *dev, struct 
ifreq *req, int cmd)
                fallthrough;
        case SIOCGMIIPHY:
                return mdio_mii_ioctl(&pi->phy.mdio, data, cmd);
-       case SIOCCHIOCTL:
-               return cxgb_extension_ioctl(dev, req->ifr_data);
        default:
                return -EOPNOTSUPP;
        }
@@ -3181,6 +3184,7 @@ static const struct net_device_ops cxgb_netdev_ops = {
        .ndo_validate_addr      = eth_validate_addr,
        .ndo_set_rx_mode        = cxgb_set_rxmode,
        .ndo_do_ioctl           = cxgb_ioctl,
+       .ndo_siocdevprivate     = cxgb_siocdevprivate,
        .ndo_change_mtu         = cxgb_change_mtu,
        .ndo_set_mac_address    = cxgb_set_mac_addr,
        .ndo_fix_features       = cxgb_fix_features,
-- 
2.27.0