diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2021-07-27 15:44:52 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-27 20:11:43 +0100 |
| commit | 4747c1a8bc50a69e9b2cd7eb188fcbd95f177999 (patch) | |
| tree | c8e641af2b6f93c17dd0629c87b0480b14ff4e32 | |
| parent | 561d8352818f2ca79c13471f245b992398902090 (diff) | |
| download | linux-stable-4747c1a8bc50a69e9b2cd7eb188fcbd95f177999.tar.gz linux-stable-4747c1a8bc50a69e9b2cd7eb188fcbd95f177999.tar.bz2 linux-stable-4747c1a8bc50a69e9b2cd7eb188fcbd95f177999.zip | |
phonet: use siocdevprivate
phonet has a single private ioctl that is broken in compat
mode on big-endian machines today because the data returned
from it is never copied back to user space.
Move it over to the ndo_siocdevprivate callback, which also
fixes the compat issue.
Cc: Remi Denis-Courmont <courmisch@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rémi Denis-Courmont <courmisch@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/usb/cdc-phonet.c | 5 | ||||
| -rw-r--r-- | net/phonet/pn_dev.c | 6 |
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c index 8d1f69dad603..e1da9102a540 100644 --- a/drivers/net/usb/cdc-phonet.c +++ b/drivers/net/usb/cdc-phonet.c @@ -253,7 +253,8 @@ static int usbpn_close(struct net_device *dev) return usb_set_interface(pnd->usb, num, !pnd->active_setting); } -static int usbpn_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int usbpn_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { struct if_phonet_req *req = (struct if_phonet_req *)ifr; @@ -269,7 +270,7 @@ static const struct net_device_ops usbpn_ops = { .ndo_open = usbpn_open, .ndo_stop = usbpn_close, .ndo_start_xmit = usbpn_xmit, - .ndo_do_ioctl = usbpn_ioctl, + .ndo_siocdevprivate = usbpn_siocdevprivate, }; static void usbpn_setup(struct net_device *dev) diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c index ac0fae06cc15..876d0ae5f9fd 100644 --- a/net/phonet/pn_dev.c +++ b/net/phonet/pn_dev.c @@ -233,11 +233,11 @@ static int phonet_device_autoconf(struct net_device *dev) struct if_phonet_req req; int ret; - if (!dev->netdev_ops->ndo_do_ioctl) + if (!dev->netdev_ops->ndo_siocdevprivate) return -EOPNOTSUPP; - ret = dev->netdev_ops->ndo_do_ioctl(dev, (struct ifreq *)&req, - SIOCPNGAUTOCONF); + ret = dev->netdev_ops->ndo_siocdevprivate(dev, (struct ifreq *)&req, + NULL, SIOCPNGAUTOCONF); if (ret < 0) return ret; |