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Date: Tue, 10 Aug 2021 02:40:31 -0400
From: Jonathan Toppins <jtoppins@...hat.com>
To: netdev@...r.kernel.org, joe@...ches.com, leon@...nel.org
Cc: Jay Vosburgh <j.vosburgh@...il.com>,
Veaceslav Falico <vfalico@...il.com>,
Andy Gospodarek <andy@...yhouse.net>,
"David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org
Subject: [PATCH net-next v2 2/2] bonding: combine netlink and console error messages
There seems to be no reason to have different error messages between
netlink and printk. It also cleans up the function slightly.
v2:
- changed the printks to reduce object code slightly
- emit a single error message based on if netlink or sysfs is
attempting to enslave
Signed-off-by: Jonathan Toppins <jtoppins@...hat.com>
---
drivers/net/bonding/bond_main.c | 49 +++++++++++++++++++--------------
1 file changed, 29 insertions(+), 20 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 3ba5f4871162..eaa82a668c8e 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1712,6 +1712,20 @@ void bond_lower_state_changed(struct slave *slave)
netdev_lower_state_changed(slave->dev, &info);
}
+#define BOND_NL_ERR(bond_dev, extack, errmsg) do { \
+ if (extack) \
+ NL_SET_ERR_MSG(extack, errmsg); \
+ else \
+ netdev_err(bond_dev, "Error: %s\n", errmsg); \
+} while (0)
+
+#define SLAVE_NL_ERR(bond_dev, slave_dev, extack, errmsg) do { \
+ if (extack) \
+ NL_SET_ERR_MSG(extack, errmsg); \
+ else \
+ slave_err(bond_dev, slave_dev, "Error: %s\n", errmsg); \
+} while (0)
+
/* enslave device <slave> to bond device <master> */
int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
struct netlink_ext_ack *extack)
@@ -1725,9 +1739,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
if (slave_dev->flags & IFF_MASTER &&
!netif_is_bond_master(slave_dev)) {
- NL_SET_ERR_MSG(extack, "Device with IFF_MASTER cannot be enslaved");
- netdev_err(bond_dev,
- "Error: Device with IFF_MASTER cannot be enslaved\n");
+ BOND_NL_ERR(bond_dev, extack,
+ "Device with IFF_MASTER cannot be enslaved");
return -EPERM;
}
@@ -1739,15 +1752,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
/* already in-use? */
if (netdev_is_rx_handler_busy(slave_dev)) {
- NL_SET_ERR_MSG(extack, "Device is in use and cannot be enslaved");
- slave_err(bond_dev, slave_dev,
- "Error: Device is in use and cannot be enslaved\n");
+ SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+ "Device is in use and cannot be enslaved");
return -EBUSY;
}
if (bond_dev == slave_dev) {
- NL_SET_ERR_MSG(extack, "Cannot enslave bond to itself.");
- netdev_err(bond_dev, "cannot enslave bond to itself.\n");
+ BOND_NL_ERR(bond_dev, extack, "Cannot enslave bond to itself.");
return -EPERM;
}
@@ -1756,8 +1767,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
if (slave_dev->features & NETIF_F_VLAN_CHALLENGED) {
slave_dbg(bond_dev, slave_dev, "is NETIF_F_VLAN_CHALLENGED\n");
if (vlan_uses_dev(bond_dev)) {
- NL_SET_ERR_MSG(extack, "Can not enslave VLAN challenged device to VLAN enabled bond");
- slave_err(bond_dev, slave_dev, "Error: cannot enslave VLAN challenged slave on VLAN enabled bond\n");
+ SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+ "Can not enslave VLAN challenged device to VLAN enabled bond");
return -EPERM;
} else {
slave_warn(bond_dev, slave_dev, "enslaved VLAN challenged slave. Adding VLANs will be blocked as long as it is part of bond.\n");
@@ -1775,8 +1786,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
* enslaving it; the old ifenslave will not.
*/
if (slave_dev->flags & IFF_UP) {
- NL_SET_ERR_MSG(extack, "Device can not be enslaved while up");
- slave_err(bond_dev, slave_dev, "slave is up - this may be due to an out of date ifenslave\n");
+ SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+ "Device can not be enslaved while up");
return -EPERM;
}
@@ -1815,17 +1826,15 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
bond_dev);
}
} else if (bond_dev->type != slave_dev->type) {
- NL_SET_ERR_MSG(extack, "Device type is different from other slaves");
- slave_err(bond_dev, slave_dev, "ether type (%d) is different from other slaves (%d), can not enslave it\n",
- slave_dev->type, bond_dev->type);
+ SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+ "Device type is different from other slaves");
return -EINVAL;
}
if (slave_dev->type == ARPHRD_INFINIBAND &&
BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
- NL_SET_ERR_MSG(extack, "Only active-backup mode is supported for infiniband slaves");
- slave_warn(bond_dev, slave_dev, "Type (%d) supports only active-backup mode\n",
- slave_dev->type);
+ SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+ "Only active-backup mode is supported for infiniband slaves");
res = -EOPNOTSUPP;
goto err_undo_flags;
}
@@ -1839,8 +1848,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
bond->params.fail_over_mac = BOND_FOM_ACTIVE;
slave_warn(bond_dev, slave_dev, "Setting fail_over_mac to active for active-backup mode\n");
} else {
- NL_SET_ERR_MSG(extack, "Slave device does not support setting the MAC address, but fail_over_mac is not set to active");
- slave_err(bond_dev, slave_dev, "The slave device specified does not support setting the MAC address, but fail_over_mac is not set to active\n");
+ SLAVE_NL_ERR(bond_dev, slave_dev, extack,
+ "Slave device does not support setting the MAC address, but fail_over_mac is not set to active");
res = -EOPNOTSUPP;
goto err_undo_flags;
}
--
2.27.0
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