TOMOYO: Print URL information before panic().

Configuration files for TOMOYO 2.3 are not compatible with TOMOYO 2.2.
But current panic() message is too unfriendly and is confusing users.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: James Morris <jmorris@namei.org>

security/tomoyo/common.c

@@ -2053,13 +2053,22 @@ void tomoyo_check_profile(void)
 		const u8 profile = domain->profile;
 		if (tomoyo_profile_ptr[profile])
 			continue;
+		printk(KERN_ERR "You need to define profile %u before using it.\n",
+		       profile);
+		printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.3/ "
+		       "for more information.\n");
 		panic("Profile %u (used by '%s') not defined.\n",
 		      profile, domain->domainname->name);
 	}
 	tomoyo_read_unlock(idx);
-	if (tomoyo_profile_version != 20090903)
+	if (tomoyo_profile_version != 20090903) {
+		printk(KERN_ERR "You need to install userland programs for "
+		       "TOMOYO 2.3 and initialize policy configuration.\n");
+		printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.3/ "
+		       "for more information.\n");
 		panic("Profile version %u is not supported.\n",
 		      tomoyo_profile_version);
+	}
 	printk(KERN_INFO "TOMOYO: 2.3.0\n");
 	printk(KERN_INFO "Mandatory Access Control activated.\n");
 }