1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * null_blk trace related helpers.
4  *
5  * Copyright (C) 2020 Western Digital Corporation or its affiliates.
6  */
7 #include "trace.h"
8 
9 /*
10  * Helper to use for all null_blk traces to extract disk name.
11  */
nullb_trace_disk_name(struct trace_seq * p,char * name)12 const char *nullb_trace_disk_name(struct trace_seq *p, char *name)
13 {
14 	const char *ret = trace_seq_buffer_ptr(p);
15 
16 	if (name && *name)
17 		trace_seq_printf(p, "disk=%s, ", name);
18 	trace_seq_putc(p, 0);
19 
20 	return ret;
21 }
22