kernel/printk/internal.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  * internal.h - printk internal definitions
6 #include <linux/console.h>
19 		(con->flags & CON_NBCON) ? "" : "legacy ",	\
20 		(con->flags & CON_BOOT) ? "boot" : "",		\
21 		con->name, con->index, ##__VA_ARGS__)
32  * the maximum size of a formatted record (i.e. with prefix added
37 /* the maximum size allowed to be reserved for a record */
75 u64 nbcon_seq_read(struct console *con);
76 void nbcon_seq_force(struct console *con, u64 seq);
77 bool nbcon_alloc(struct console *con);
78 void nbcon_init(struct console *con);
79 void nbcon_free(struct console *con);
89  * semaphore and some of console functions (console_unlock()/etc.), so
90  * printk-safe must preserve the existing local IRQ guarantees.
96 static inline u64 nbcon_seq_read(struct console *con) { return 0; }  in nbcon_seq_read()
97 static inline void nbcon_seq_force(struct console *con, u64 seq) { }  in nbcon_seq_force()
98 static inline bool nbcon_alloc(struct console *con) { return false; }  in nbcon_alloc()
99 static inline void nbcon_init(struct console *con) { }  in nbcon_init()
100 static inline void nbcon_free(struct console *con) { }  in nbcon_free()
107  * struct printk_buffers - Buffers to read/format/output printk messages.
109  * @scratchbuf:	Used as temporary ringbuffer reading and string-print space.
117  * struct printk_message - Container for a prepared printk message.
119  * @outbuf_len:	The length of prepared text in @pbufs->outbuf to output. This
122  * @seq:	The sequence number of the record used for @pbufs->outbuf.