Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: LGPL-2.1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #ifndef _TRACE_SEQ_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #define _TRACE_SEQ_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <stdarg.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /* ----------------------- trace_seq ----------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #ifndef TRACE_SEQ_BUF_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define TRACE_SEQ_BUF_SIZE 4096
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) enum trace_seq_fail {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	TRACE_SEQ__GOOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	TRACE_SEQ__BUFFER_POISONED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	TRACE_SEQ__MEM_ALLOC_FAILED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  * Trace sequences are used to allow a function to call several other functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * to create a string of data to use (up to a max of PAGE_SIZE).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) struct trace_seq {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	char			*buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	unsigned int		buffer_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	unsigned int		len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	unsigned int		readpos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	enum trace_seq_fail	state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) void trace_seq_init(struct trace_seq *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) void trace_seq_reset(struct trace_seq *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) void trace_seq_destroy(struct trace_seq *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	__attribute__ ((format (printf, 2, 3)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	__attribute__ ((format (printf, 2, 0)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) extern int trace_seq_puts(struct trace_seq *s, const char *str);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) extern void trace_seq_terminate(struct trace_seq *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) extern int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) extern int trace_seq_do_printf(struct trace_seq *s);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #endif /* _TRACE_SEQ_H */