From: Arnd Bergmann <arnd@kernel.org>
To: netdev@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>,
linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org,
bridge@lists.linux-foundation.org, linux-hams@vger.kernel.org,
Jakub Kicinski <kuba@kernel.org>, Christoph Hellwig <hch@lst.de>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Johannes Berg <johannes@sipsolutions.net>,
Andrew Lunn <andrew@lunn.ch>,
Heiner Kallweit <hkallweit1@gmail.com>
Subject: [RFC net-next 09/28] bonding: use siocdevprivate
Date: Fri, 6 Nov 2020 23:17:24 +0100 [thread overview]
Message-ID: <20201106221743.3271965-10-arnd@kernel.org> (raw)
In-Reply-To: <20201106221743.3271965-1-arnd@kernel.org>
From: Arnd Bergmann <arnd@arndb.de>
The bonding driver supports two command codes for each operation: one
in the SIOCDEVPRIVATE range and another one with the same definition
but a unique command code.
Only the second set currently works in compat mode, as the ifr_data
expansion overwrites part of the ifr_slave field.
Move the private ones into ndo_siocdevprivate and change the
implementation to call the other function. This makes both version
work correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/net/bonding/bond_main.c | 29 +++++++++++++++++++++++------
1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 84ecbc6fa0ff..5a2956fec025 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3781,7 +3781,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
}
return 0;
- case BOND_INFO_QUERY_OLD:
case SIOCBONDINFOQUERY:
u_binfo = (struct ifbond __user *)ifr->ifr_data;
@@ -3793,7 +3792,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
return -EFAULT;
return 0;
- case BOND_SLAVE_INFO_QUERY_OLD:
case SIOCBONDSLAVEINFOQUERY:
u_sinfo = (struct ifslave __user *)ifr->ifr_data;
@@ -3823,19 +3821,15 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
return -ENODEV;
switch (cmd) {
- case BOND_ENSLAVE_OLD:
case SIOCBONDENSLAVE:
res = bond_enslave(bond_dev, slave_dev, NULL);
break;
- case BOND_RELEASE_OLD:
case SIOCBONDRELEASE:
res = bond_release(bond_dev, slave_dev);
break;
- case BOND_SETHWADDR_OLD:
case SIOCBONDSETHWADDR:
res = bond_set_dev_addr(bond_dev, slave_dev);
break;
- case BOND_CHANGE_ACTIVE_OLD:
case SIOCBONDCHANGEACTIVE:
bond_opt_initstr(&newval, slave_dev->name);
res = __bond_opt_set_notify(bond, BOND_OPT_ACTIVE_SLAVE,
@@ -3848,6 +3842,28 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
return res;
}
+static int bond_siocdevprivate(struct net_device *bond_dev, struct ifreq *ifr,
+ void __user *data, int cmd)
+{
+ struct ifreq ifrdata = { .ifr_data = data };
+ switch (cmd) {
+ case BOND_INFO_QUERY_OLD:
+ return bond_do_ioctl(bond_dev, &ifrdata, SIOCBONDINFOQUERY);
+ case BOND_SLAVE_INFO_QUERY_OLD:
+ return bond_do_ioctl(bond_dev, &ifrdata, SIOCBONDSLAVEINFOQUERY);
+ case BOND_ENSLAVE_OLD:
+ return bond_do_ioctl(bond_dev, ifr, SIOCBONDENSLAVE);
+ case BOND_RELEASE_OLD:
+ return bond_do_ioctl(bond_dev, ifr, SIOCBONDRELEASE);
+ case BOND_SETHWADDR_OLD:
+ return bond_do_ioctl(bond_dev, ifr, SIOCBONDSETHWADDR);
+ case BOND_CHANGE_ACTIVE_OLD:
+ return bond_do_ioctl(bond_dev, ifr, SIOCBONDCHANGEACTIVE);
+ }
+
+ return -EOPNOTSUPP;
+}
+
static void bond_change_rx_flags(struct net_device *bond_dev, int change)
{
struct bonding *bond = netdev_priv(bond_dev);
@@ -4642,6 +4658,7 @@ static const struct net_device_ops bond_netdev_ops = {
.ndo_select_queue = bond_select_queue,
.ndo_get_stats64 = bond_get_stats,
.ndo_do_ioctl = bond_do_ioctl,
+ .ndo_siocdevprivate = bond_siocdevprivate,
.ndo_change_rx_flags = bond_change_rx_flags,
.ndo_set_rx_mode = bond_set_rx_mode,
.ndo_change_mtu = bond_change_mtu,
--
2.27.0
next prev parent reply other threads:[~2020-11-06 22:18 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-06 22:17 [RFC net-next 00/28] ndo_ioctl rework Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 01/28] net: split out SIOCDEVPRIVATE handling from dev_ioctl Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 02/28] staging: rtlwifi: use siocdevprivate Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 03/28] staging: wlan-ng: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 04/28] hostap: use ndo_siocdevprivate Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 05/28] wireless: remove old ioctls Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 06/28] bridge: use ndo_siocdevprivate Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 07/28] phonet: use siocdevprivate Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 08/28] tulip: use ndo_siocdevprivate Arnd Bergmann
2020-11-06 22:17 ` Arnd Bergmann [this message]
2020-11-06 22:17 ` [RFC net-next 10/28] appletalk: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 11/28] hamachi: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 12/28] tehuti: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 13/28] eql: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 14/28] fddi: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 15/28] net: usb: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 16/28] slip/plip: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 17/28] qeth: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 18/28] cxgb3: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 19/28] dev_ioctl: pass SIOCDEVPRIVATE data separately Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 20/28] dev_ioctl: split out ndo_eth_ioctl Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 21/28] wan: use ndo_siocdevprivate Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 22/28] hamradio: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 23/28] airo: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 24/28] ip_tunnel: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 25/28] hippi: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 26/28] sb1000: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 27/28] ppp: " Arnd Bergmann
2020-11-06 22:17 ` [RFC net-next 28/28] net: socket: return changed ifreq from SIOCDEVPRIVATE Arnd Bergmann
2020-11-08 0:06 ` [RFC net-next 00/28] ndo_ioctl rework Jakub Kicinski
2020-11-08 8:27 ` Arnd Bergmann
2020-11-08 11:21 ` Kalle Valo
2020-11-08 11:42 ` Arnd Bergmann
2020-11-09 11:25 ` Kalle Valo
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