tipc: use standard printk shortcut macros (pr_err etc.)

All messages should go directly to the kernel log.  The TIPC
specific error, warning, info and debug trace macro's are
removed and all references replaced with pr_err, pr_warn,
pr_info and pr_debug.

Commonly used sub-strings are explicitly declared as a const
char to reduce .text size.

Note that this means the debug messages (changed to pr_debug),
are now enabled through dynamic debugging, instead of a TIPC
specific Kconfig option (TIPC_DEBUG).  The latter will be
phased out completely

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
[PG: use pr_fmt as suggested by Joe Perches <joe@perches.com>]
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

net/tipc/ref.c

@@ -153,11 +153,11 @@ u32 tipc_ref_acquire(void *object, spinlock_t **lock)
 	struct reference *entry = NULL;
 
 	if (!object) {
-		err("Attempt to acquire reference to non-existent object\n");
+		pr_err("Attempt to acquire ref. to non-existent obj\n");
 		return 0;
 	}
 	if (!tipc_ref_table.entries) {
-		err("Reference table not found during acquisition attempt\n");
+		pr_err("Ref. table not found in acquisition attempt\n");
 		return 0;
 	}
 
@@ -211,7 +211,7 @@ void tipc_ref_discard(u32 ref)
 	u32 index_mask;
 
 	if (!tipc_ref_table.entries) {
-		err("Reference table not found during discard attempt\n");
+		pr_err("Ref. table not found during discard attempt\n");
 		return;
 	}
 
@@ -222,11 +222,11 @@ void tipc_ref_discard(u32 ref)
 	write_lock_bh(&ref_table_lock);
 
 	if (!entry->object) {
-		err("Attempt to discard reference to non-existent object\n");
+		pr_err("Attempt to discard ref. to non-existent obj\n");
 		goto exit;
 	}
 	if (entry->ref != ref) {
-		err("Attempt to discard non-existent reference\n");
+		pr_err("Attempt to discard non-existent reference\n");
 		goto exit;
 	}