1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * internal.h - printk internal definitions
5 #include <linux/percpu.h>
10 int vprintk_store(int facility, int level,
11 const struct dev_printk_info *dev_info,
12 const char *fmt, va_list args);
14 __printf(1, 0) int vprintk_default(const char *fmt, va_list args);
15 __printf(1, 0) int vprintk_deferred(const char *fmt, va_list args);
17 bool printk_percpu_data_ready(void);
19 #define printk_safe_enter_irqsave(flags) \
21 local_irq_save(flags); \
22 __printk_safe_enter(); \
25 #define printk_safe_exit_irqrestore(flags) \
27 __printk_safe_exit(); \
28 local_irq_restore(flags); \
31 void defer_console_output(void);
36 * In !PRINTK builds we still export console_sem
37 * semaphore and some of console functions (console_unlock()/etc.), so
38 * printk-safe must preserve the existing local IRQ guarantees.
40 #define printk_safe_enter_irqsave(flags) local_irq_save(flags)
41 #define printk_safe_exit_irqrestore(flags) local_irq_restore(flags)
43 static inline bool printk_percpu_data_ready(void) { return false; }
44 #endif /* CONFIG_PRINTK */