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Date: Thu, 13 Feb 2014 11:02:17 -0800
From: Joe Perches <joe@...ches.com>
To: Patrick McHardy <kaber@...sh.net>
Cc: Cong Wang <cwang@...pensource.com>,
Jozsef Kadlecsik <kadlec@...ckhole.kfki.hu>,
Ilia Mirkin <imirkin@...m.mit.edu>,
netdev <netdev@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Vitaly Lavrov <lve@...p.ru>
Subject: Re: ip_set: protocol %u message -- useful?
On Thu, 2014-02-13 at 18:42 +0000, Patrick McHardy wrote:
> On Thu, Feb 13, 2014 at 10:32:45AM -0800, Cong Wang wrote:
> > On Thu, Feb 13, 2014 at 2:30 AM, Jozsef Kadlecsik
> > <kadlec@...ckhole.kfki.hu> wrote:
> > > On Thu, 13 Feb 2014, Ilia Mirkin wrote:
> > >> messages in my dmesg. This might be because of some local
> > >> configuration changes I've made, or perhaps a kernel upgrade. Either
> > >> way, it appears this message has been a pr_notice since the original
> > >> code added it in a7b4f989a62 ("netfilter: ipset: IP set core
> > >> support").
> > >>
> > >> Does this message provide a lot of value? Or could it be made into a pr_debug?
> > >
> > > That's a report message on the protocol version used by the ipset
> > > subsystem. There was (and possibly will be) multiple protocols, so it
> > > helps to catch basic userpsace/kernelspace communication issues.
> >
> > But still it doesn't deserve a pr_notice()... pr_info() should be enough.
>
> Maybe printing "using protocol version X" will make it appear less like
> a debugging message referring to packet contents or something similar.
Maybe making all the ip_set messages be prefixed with "ip_set: "
would help too.
Add pr_fmt
Remove embedded ip_set prefixes
Convert pr_warning to pr_warn
Realign arguments
---
net/netfilter/ipset/ip_set_core.c | 39 ++++++++++++++++++++-------------------
1 file changed, 20 insertions(+), 19 deletions(-)
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index de770ec..1d4396f 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -9,6 +9,8 @@
/* Kernel module for IP set management */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/init.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -101,7 +103,7 @@ load_settype(const char *name)
nfnl_unlock(NFNL_SUBSYS_IPSET);
pr_debug("try to load ip_set_%s\n", name);
if (request_module("ip_set_%s", name) < 0) {
- pr_warning("Can't find ip_set type %s\n", name);
+ pr_warn("Can't find type %s\n", name);
nfnl_lock(NFNL_SUBSYS_IPSET);
return false;
}
@@ -195,25 +197,24 @@ ip_set_type_register(struct ip_set_type *type)
int ret = 0;
if (type->protocol != IPSET_PROTOCOL) {
- pr_warning("ip_set type %s, family %s, revision %u:%u uses "
- "wrong protocol version %u (want %u)\n",
- type->name, family_name(type->family),
- type->revision_min, type->revision_max,
- type->protocol, IPSET_PROTOCOL);
+ pr_warn("type %s, family %s, revision %u:%u uses wrong protocol version %u (want %u)\n",
+ type->name, family_name(type->family),
+ type->revision_min, type->revision_max,
+ type->protocol, IPSET_PROTOCOL);
return -EINVAL;
}
ip_set_type_lock();
if (find_set_type(type->name, type->family, type->revision_min)) {
/* Duplicate! */
- pr_warning("ip_set type %s, family %s with revision min %u "
- "already registered!\n", type->name,
- family_name(type->family), type->revision_min);
+ pr_warn("type %s, family %s with revision min %u already registered!\n",
+ type->name, family_name(type->family),
+ type->revision_min);
ret = -EINVAL;
goto unlock;
}
list_add_rcu(&type->list, &ip_set_type_list);
- pr_debug("type %s, family %s, revision %u:%u registered.\n",
+ pr_debug("type %s, family %s, revision %u:%u registered\n",
type->name, family_name(type->family),
type->revision_min, type->revision_max);
unlock:
@@ -228,13 +229,13 @@ ip_set_type_unregister(struct ip_set_type *type)
{
ip_set_type_lock();
if (!find_set_type(type->name, type->family, type->revision_min)) {
- pr_warning("ip_set type %s, family %s with revision min %u "
- "not registered\n", type->name,
- family_name(type->family), type->revision_min);
+ pr_warn("type %s, family %s with revision min %u not registered\n",
+ type->name, family_name(type->family),
+ type->revision_min);
goto unlock;
}
list_del_rcu(&type->list);
- pr_debug("type %s, family %s with revision min %u unregistered.\n",
+ pr_debug("type %s, family %s with revision min %u unregistered\n",
type->name, family_name(type->family), type->revision_min);
unlock:
ip_set_type_unlock();
@@ -269,8 +270,8 @@ EXPORT_SYMBOL_GPL(ip_set_alloc);
void
ip_set_free(void *members)
{
- pr_debug("%p: free with %s\n", members,
- is_vmalloc_addr(members) ? "vfree" : "kfree");
+ pr_debug("%p: free with %s\n",
+ members, is_vmalloc_addr(members) ? "vfree" : "kfree");
if (is_vmalloc_addr(members))
vfree(members);
else
@@ -1945,7 +1946,7 @@ ip_set_net_init(struct net *net)
return -ENOMEM;
inst->is_deleted = 0;
rcu_assign_pointer(inst->ip_set_list, list);
- pr_notice("ip_set: protocol %u\n", IPSET_PROTOCOL);
+ pr_notice("protocol %u\n", IPSET_PROTOCOL);
return 0;
}
@@ -1980,7 +1981,7 @@ ip_set_init(void)
{
int ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
if (ret != 0) {
- pr_err("ip_set: cannot register with nfnetlink.\n");
+ pr_err("cannot register with nfnetlink\n");
return ret;
}
ret = nf_register_sockopt(&so_set);
@@ -1991,7 +1992,7 @@ ip_set_init(void)
}
ret = register_pernet_subsys(&ip_set_net_ops);
if (ret) {
- pr_err("ip_set: cannot register pernet_subsys.\n");
+ pr_err("cannot register pernet_subsys\n");
nf_unregister_sockopt(&so_set);
nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
return ret;
--
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