Netdev Archive on lore.kernel.org
help / color / mirror / Atom feed
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>,
	Jay Vosburgh <j.vosburgh@gmail.com>,
	Veaceslav Falico <vfalico@gmail.com>,
	Andy Gospodarek <andy@greyhouse.net>
Subject: [PATCH net-next v3 08/31] bonding: use siocdevprivate
Date: Tue, 27 Jul 2021 15:44:54 +0200	[thread overview]
Message-ID: <20210727134517.1384504-9-arnd@kernel.org> (raw)
In-Reply-To: <20210727134517.1384504-1-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.

Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/net/bonding/bond_main.c | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 31730efa7538..96864183f92e 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4000,7 +4000,6 @@ 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;
 
@@ -4012,7 +4011,6 @@ 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;
 
@@ -4042,19 +4040,15 @@ 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,
@@ -4067,6 +4061,29 @@ 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);
@@ -4956,6 +4973,7 @@ 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,
-- 
2.29.2


  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 ` [PATCH net-next v3 03/31] staging: wlan-ng: " Arnd Bergmann
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 ` Arnd Bergmann [this message]
2021-07-27 13:44 ` [PATCH net-next v3 09/31] appletalk: " 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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210727134517.1384504-9-arnd@kernel.org \
    --to=arnd@kernel.org \
    --cc=andy@greyhouse.net \
    --cc=arnd@arndb.de \
    --cc=davem@davemloft.net \
    --cc=j.vosburgh@gmail.com \
    --cc=kuba@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=vfalico@gmail.com \
    --subject='Re: [PATCH net-next v3 08/31] bonding: use siocdevprivate' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).