From: Arnd Bergmann <arnd@kernel.org>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH net-next v3 03/31] staging: wlan-ng: use siocdevprivate
Date: Tue, 27 Jul 2021 15:44:49 +0200 [thread overview]
Message-ID: <20210727134517.1384504-4-arnd@kernel.org> (raw)
In-Reply-To: <20210727134517.1384504-1-arnd@kernel.org>
From: Arnd Bergmann <arnd@arndb.de>
wlan-ng has two private ioctls that correctly work in compat
mode. Move these over to the new ndo_siocdevprivate mechanism.
The p80211netdev_ethtool() function is commented out and
has no use here, so this can be removed
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/staging/wlan-ng/p80211netdev.c | 76 ++++----------------------
1 file changed, 11 insertions(+), 65 deletions(-)
diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c
index 6f470e7ba647..1c62130a5eee 100644
--- a/drivers/staging/wlan-ng/p80211netdev.c
+++ b/drivers/staging/wlan-ng/p80211netdev.c
@@ -98,8 +98,8 @@ static int p80211knetdev_stop(struct net_device *netdev);
static netdev_tx_t p80211knetdev_hard_start_xmit(struct sk_buff *skb,
struct net_device *netdev);
static void p80211knetdev_set_multicast_list(struct net_device *dev);
-static int p80211knetdev_do_ioctl(struct net_device *dev, struct ifreq *ifr,
- int cmd);
+static int p80211knetdev_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
+ void __user *data, int cmd);
static int p80211knetdev_set_mac_address(struct net_device *dev, void *addr);
static void p80211knetdev_tx_timeout(struct net_device *netdev, unsigned int txqueue);
static int p80211_rx_typedrop(struct wlandevice *wlandev, u16 fc);
@@ -461,56 +461,8 @@ static void p80211knetdev_set_multicast_list(struct net_device *dev)
wlandev->set_multicast_list(wlandev, dev);
}
-#ifdef SIOCETHTOOL
-
-static int p80211netdev_ethtool(struct wlandevice *wlandev,
- void __user *useraddr)
-{
- u32 ethcmd;
- struct ethtool_drvinfo info;
- struct ethtool_value edata;
-
- memset(&info, 0, sizeof(info));
- memset(&edata, 0, sizeof(edata));
-
- if (copy_from_user(ðcmd, useraddr, sizeof(ethcmd)))
- return -EFAULT;
-
- switch (ethcmd) {
- case ETHTOOL_GDRVINFO:
- info.cmd = ethcmd;
- snprintf(info.driver, sizeof(info.driver), "p80211_%s",
- wlandev->nsdname);
- snprintf(info.version, sizeof(info.version), "%s",
- WLAN_RELEASE);
-
- if (copy_to_user(useraddr, &info, sizeof(info)))
- return -EFAULT;
- return 0;
-#ifdef ETHTOOL_GLINK
- case ETHTOOL_GLINK:
- edata.cmd = ethcmd;
-
- if (wlandev->linkstatus &&
- (wlandev->macmode != WLAN_MACMODE_NONE)) {
- edata.data = 1;
- } else {
- edata.data = 0;
- }
-
- if (copy_to_user(useraddr, &edata, sizeof(edata)))
- return -EFAULT;
- return 0;
-#endif
- }
-
- return -EOPNOTSUPP;
-}
-
-#endif
-
/*----------------------------------------------------------------
- * p80211knetdev_do_ioctl
+ * p80211knetdev_siocdevprivate
*
* Handle an ioctl call on one of our devices. Everything Linux
* ioctl specific is done here. Then we pass the contents of the
@@ -537,8 +489,9 @@ static int p80211netdev_ethtool(struct wlandevice *wlandev,
* locks.
*----------------------------------------------------------------
*/
-static int p80211knetdev_do_ioctl(struct net_device *dev,
- struct ifreq *ifr, int cmd)
+static int p80211knetdev_siocdevprivate(struct net_device *dev,
+ struct ifreq *ifr,
+ void __user *data, int cmd)
{
int result = 0;
struct p80211ioctl_req *req = (struct p80211ioctl_req *)ifr;
@@ -547,13 +500,8 @@ static int p80211knetdev_do_ioctl(struct net_device *dev,
netdev_dbg(dev, "rx'd ioctl, cmd=%d, len=%d\n", cmd, req->len);
-#ifdef SIOCETHTOOL
- if (cmd == SIOCETHTOOL) {
- result =
- p80211netdev_ethtool(wlandev, (void __user *)ifr->ifr_data);
- goto bail;
- }
-#endif
+ if (in_compat_syscall())
+ return -EOPNOTSUPP;
/* Test the magic, assume ifr is good if it's there */
if (req->magic != P80211_IOCTL_MAGIC) {
@@ -569,7 +517,7 @@ static int p80211knetdev_do_ioctl(struct net_device *dev,
goto bail;
}
- msgbuf = memdup_user(req->data, req->len);
+ msgbuf = memdup_user(data, req->len);
if (IS_ERR(msgbuf)) {
result = PTR_ERR(msgbuf);
goto bail;
@@ -578,10 +526,8 @@ static int p80211knetdev_do_ioctl(struct net_device *dev,
result = p80211req_dorequest(wlandev, msgbuf);
if (result == 0) {
- if (copy_to_user
- (req->data, msgbuf, req->len)) {
+ if (copy_to_user(data, msgbuf, req->len))
result = -EFAULT;
- }
}
kfree(msgbuf);
@@ -682,7 +628,7 @@ static const struct net_device_ops p80211_netdev_ops = {
.ndo_stop = p80211knetdev_stop,
.ndo_start_xmit = p80211knetdev_hard_start_xmit,
.ndo_set_rx_mode = p80211knetdev_set_multicast_list,
- .ndo_do_ioctl = p80211knetdev_do_ioctl,
+ .ndo_siocdevprivate = p80211knetdev_siocdevprivate,
.ndo_set_mac_address = p80211knetdev_set_mac_address,
.ndo_tx_timeout = p80211knetdev_tx_timeout,
.ndo_validate_addr = eth_validate_addr,
--
2.29.2
next prev parent reply other threads:[~2021-07-27 13:46 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-27 13:44 [PATCH net-next v3 00/31] ndo_ioctl rework Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 01/31] net: split out SIOCDEVPRIVATE handling from dev_ioctl Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 02/31] staging: rtlwifi: use siocdevprivate Arnd Bergmann
2021-07-27 13:44 ` Arnd Bergmann [this message]
2021-07-27 13:44 ` [PATCH net-next v3 04/31] hostap: use ndo_siocdevprivate Arnd Bergmann
2021-07-28 7:07 ` Kalle Valo
2021-07-27 13:44 ` [PATCH net-next v3 05/31] bridge: " Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 06/31] phonet: use siocdevprivate Arnd Bergmann
2021-07-27 16:03 ` Rémi Denis-Courmont
2021-07-27 13:44 ` [PATCH net-next v3 07/31] tulip: use ndo_siocdevprivate Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 08/31] bonding: use siocdevprivate Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 09/31] appletalk: use ndo_siocdevprivate Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 10/31] hamachi: " Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 11/31] tehuti: " Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 12/31] eql: " Arnd Bergmann
2021-07-27 13:44 ` [PATCH net-next v3 13/31] fddi: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 14/31] net: usb: " Arnd Bergmann
2021-07-28 13:02 ` Petko Manolov
2021-07-27 13:45 ` [PATCH net-next v3 15/31] slip/plip: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 16/31] qeth: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 17/31] cxgb3: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 18/31] hamradio: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 19/31] airo: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 20/31] ip_tunnel: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 21/31] hippi: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 22/31] sb1000: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 23/31] ppp: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 24/31] wan: " Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 25/31] wan: cosa: remove dead cosa_net_ioctl() function Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 26/31] dev_ioctl: pass SIOCDEVPRIVATE data separately Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 27/31] dev_ioctl: split out ndo_eth_ioctl Arnd Bergmann
2021-07-27 16:30 ` Jason Gunthorpe
2021-07-27 13:45 ` [PATCH net-next v3 28/31] net: split out ndo_siowandev ioctl Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 29/31] net: socket: return changed ifreq from SIOCDEVPRIVATE Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 30/31] net: bridge: move bridge ioctls out of .ndo_do_ioctl Arnd Bergmann
2021-07-27 13:45 ` [PATCH net-next v3 31/31] net: bonding: move ioctl handling to private ndo operation Arnd Bergmann
2021-07-27 20:00 ` [PATCH net-next v3 00/31] ndo_ioctl rework patchwork-bot+netdevbpf
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