18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * null_blk trace related helpers. 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Copyright (C) 2020 Western Digital Corporation or its affiliates. 68c2ecf20Sopenharmony_ci */ 78c2ecf20Sopenharmony_ci#include "trace.h" 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci/* 108c2ecf20Sopenharmony_ci * Helper to use for all null_blk traces to extract disk name. 118c2ecf20Sopenharmony_ci */ 128c2ecf20Sopenharmony_ciconst char *nullb_trace_disk_name(struct trace_seq *p, char *name) 138c2ecf20Sopenharmony_ci{ 148c2ecf20Sopenharmony_ci const char *ret = trace_seq_buffer_ptr(p); 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ci if (name && *name) 178c2ecf20Sopenharmony_ci trace_seq_printf(p, "disk=%s, ", name); 188c2ecf20Sopenharmony_ci trace_seq_putc(p, 0); 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci return ret; 218c2ecf20Sopenharmony_ci} 22