[RFC net-next 07/28] phonet: use siocdevprivate
From: Arnd Bergmann <arnd@kernel.org>
Date: 2020-11-06 22:18:21
Also in:
bridge, linux-hams, linux-wireless, lkml
Subsystem:
networking drivers, networking [general], phonet protocol, the rest, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Remi Denis-Courmont, Linus Torvalds
From: Arnd Bergmann <arnd@arndb.de> 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. Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/net/usb/cdc-phonet.c | 5 +++-- 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 dba847f28096..5f6d34acf871 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;
--
2.27.0