* [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values
@ 2020-07-31 13:32 Florent Fourcot
2020-07-31 13:32 ` [PATCH net-next 2/2] ipv6/addrconf: use a boolean to choose between UNREGISTER/DOWN Florent Fourcot
2020-08-03 22:24 ` [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values David Miller
0 siblings, 2 replies; 4+ messages in thread
From: Florent Fourcot @ 2020-07-31 13:32 UTC (permalink / raw)
To: netdev; +Cc: Florent Fourcot
Second parameter of addrconf_ifdown "how" is used as a boolean
internally. It does not make sense to call it with something different
of 0 or 1.
This value is set to 2 in all git history.
Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
---
net/ipv6/addrconf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 840bfdb3d7bd..861265fa9d6d 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -7189,7 +7189,7 @@ void addrconf_cleanup(void)
continue;
addrconf_ifdown(dev, 1);
}
- addrconf_ifdown(init_net.loopback_dev, 2);
+ addrconf_ifdown(init_net.loopback_dev, 1);
/*
* Check hash table.
--
2.20.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH net-next 2/2] ipv6/addrconf: use a boolean to choose between UNREGISTER/DOWN
2020-07-31 13:32 [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values Florent Fourcot
@ 2020-07-31 13:32 ` Florent Fourcot
2020-08-03 22:25 ` David Miller
2020-08-03 22:24 ` [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values David Miller
1 sibling, 1 reply; 4+ messages in thread
From: Florent Fourcot @ 2020-07-31 13:32 UTC (permalink / raw)
To: netdev; +Cc: Florent Fourcot
"how" was used as a boolean. Change the type to bool, and improve
variable name
Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
---
net/ipv6/addrconf.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 861265fa9d6d..0acf6a9796ca 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -163,7 +163,7 @@ static void addrconf_leave_anycast(struct inet6_ifaddr *ifp);
static void addrconf_type_change(struct net_device *dev,
unsigned long event);
-static int addrconf_ifdown(struct net_device *dev, int how);
+static int addrconf_ifdown(struct net_device *dev, bool unregister);
static struct fib6_info *addrconf_get_prefix_route(const struct in6_addr *pfx,
int plen,
@@ -3630,7 +3630,7 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
* an L3 master device (e.g., VRF)
*/
if (info->upper_dev && netif_is_l3_master(info->upper_dev))
- addrconf_ifdown(dev, 0);
+ addrconf_ifdown(dev, false);
}
return NOTIFY_OK;
@@ -3663,9 +3663,9 @@ static bool addr_is_local(const struct in6_addr *addr)
(IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK);
}
-static int addrconf_ifdown(struct net_device *dev, int how)
+static int addrconf_ifdown(struct net_device *dev, bool unregister)
{
- unsigned long event = how ? NETDEV_UNREGISTER : NETDEV_DOWN;
+ unsigned long event = unregister ? NETDEV_UNREGISTER : NETDEV_DOWN;
struct net *net = dev_net(dev);
struct inet6_dev *idev;
struct inet6_ifaddr *ifa, *tmp;
@@ -3684,7 +3684,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
* Step 1: remove reference to ipv6 device from parent device.
* Do not dev_put!
*/
- if (how) {
+ if (unregister) {
idev->dead = 1;
/* protected by rtnl_lock */
@@ -3698,7 +3698,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* combine the user config with event to determine if permanent
* addresses are to be removed from address hash table
*/
- if (!how && !idev->cnf.disable_ipv6) {
+ if (!unregister && !idev->cnf.disable_ipv6) {
/* aggregate the system setting and interface setting */
int _keep_addr = net->ipv6.devconf_all->keep_addr_on_down;
@@ -3736,7 +3736,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
addrconf_del_rs_timer(idev);
/* Step 2: clear flags for stateless addrconf */
- if (!how)
+ if (!unregister)
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 3: clear tempaddr list */
@@ -3806,7 +3806,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
write_unlock_bh(&idev->lock);
/* Step 5: Discard anycast and multicast list */
- if (how) {
+ if (unregister) {
ipv6_ac_destroy_dev(idev);
ipv6_mc_destroy_dev(idev);
} else {
@@ -3816,7 +3816,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
idev->tstamp = jiffies;
/* Last: Shot the device (if unregistered) */
- if (how) {
+ if (unregister) {
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);
@@ -4038,7 +4038,7 @@ static void addrconf_dad_work(struct work_struct *w)
in6_ifa_hold(ifp);
addrconf_dad_stop(ifp, 1);
if (disable_ipv6)
- addrconf_ifdown(idev->dev, 0);
+ addrconf_ifdown(idev->dev, false);
goto out;
}
@@ -7187,9 +7187,9 @@ void addrconf_cleanup(void)
for_each_netdev(&init_net, dev) {
if (__in6_dev_get(dev) == NULL)
continue;
- addrconf_ifdown(dev, 1);
+ addrconf_ifdown(dev, true);
}
- addrconf_ifdown(init_net.loopback_dev, 1);
+ addrconf_ifdown(init_net.loopback_dev, true);
/*
* Check hash table.
--
2.20.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values
2020-07-31 13:32 [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values Florent Fourcot
2020-07-31 13:32 ` [PATCH net-next 2/2] ipv6/addrconf: use a boolean to choose between UNREGISTER/DOWN Florent Fourcot
@ 2020-08-03 22:24 ` David Miller
1 sibling, 0 replies; 4+ messages in thread
From: David Miller @ 2020-08-03 22:24 UTC (permalink / raw)
To: florent.fourcot; +Cc: netdev
From: Florent Fourcot <florent.fourcot@wifirst.fr>
Date: Fri, 31 Jul 2020 15:32:06 +0200
> Second parameter of addrconf_ifdown "how" is used as a boolean
> internally. It does not make sense to call it with something different
> of 0 or 1.
>
> This value is set to 2 in all git history.
>
> Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
The value '2' had a special meaning a very long time ago.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH net-next 2/2] ipv6/addrconf: use a boolean to choose between UNREGISTER/DOWN
2020-07-31 13:32 ` [PATCH net-next 2/2] ipv6/addrconf: use a boolean to choose between UNREGISTER/DOWN Florent Fourcot
@ 2020-08-03 22:25 ` David Miller
0 siblings, 0 replies; 4+ messages in thread
From: David Miller @ 2020-08-03 22:25 UTC (permalink / raw)
To: florent.fourcot; +Cc: netdev
From: Florent Fourcot <florent.fourcot@wifirst.fr>
Date: Fri, 31 Jul 2020 15:32:07 +0200
> "how" was used as a boolean. Change the type to bool, and improve
> variable name
>
> Signed-off-by: Florent Fourcot <florent.fourcot@wifirst.fr>
Applied.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-08-03 22:25 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-07-31 13:32 [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values Florent Fourcot
2020-07-31 13:32 ` [PATCH net-next 2/2] ipv6/addrconf: use a boolean to choose between UNREGISTER/DOWN Florent Fourcot
2020-08-03 22:25 ` David Miller
2020-08-03 22:24 ` [PATCH net-next 1/2] ipv6/addrconf: call addrconf_ifdown with consistent values David Miller
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