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 */ 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