unix: convert printks to pr_<level>

use pr_<level> instead of printk(LEVEL)
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/unix/af_unix.c

@@ -80,6 +80,8 @@
  *		  with BSD names.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
@@ -366,7 +368,7 @@ static void unix_sock_destructor(struct sock *sk)
 	WARN_ON(!sk_unhashed(sk));
 	WARN_ON(sk->sk_socket);
 	if (!sock_flag(sk, SOCK_DEAD)) {
-		printk(KERN_INFO "Attempt to release alive unix socket: %p\n", sk);
+		pr_info("Attempt to release alive unix socket: %p\n", sk);
 		return;
 	}
 
@@ -378,7 +380,7 @@ static void unix_sock_destructor(struct sock *sk)
 	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
 	local_bh_enable();
 #ifdef UNIX_REFCNT_DEBUG
-	printk(KERN_DEBUG "UNIX %p is destroyed, %ld are still alive.\n", sk,
+	pr_debug("UNIX %p is destroyed, %ld are still alive.\n", sk,
 		atomic_long_read(&unix_nr_socks));
 #endif
 }
@@ -2433,8 +2435,7 @@ static int __init af_unix_init(void)
 
 	rc = proto_register(&unix_proto, 1);
 	if (rc != 0) {
-		printk(KERN_CRIT "%s: Cannot create unix_sock SLAB cache!\n",
-		       __func__);
+		pr_crit("%s: Cannot create unix_sock SLAB cache!\n", __func__);
 		goto out;
 	}