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c51d0419 CK |
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 "null_blk_trace.h" | |
8 | ||
9 | /* | |
10 | * Helper to use for all null_blk traces to extract disk name. | |
11 | */ | |
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 | } |