| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Anton Vorontsov | 060287b | 2012-07-09 17:10:41 -0700 | [diff] [blame] | 2 | #ifndef __PSTORE_INTERNAL_H__ |
| 3 | #define __PSTORE_INTERNAL_H__ |
| 4 | |
| Anton Vorontsov | 67a101f | 2012-07-17 11:37:07 -0700 | [diff] [blame] | 5 | #include <linux/types.h> |
| 6 | #include <linux/time.h> |
| Anton Vorontsov | 060287b | 2012-07-09 17:10:41 -0700 | [diff] [blame] | 7 | #include <linux/pstore.h> |
| 8 | |
| David Howells | 349d743 | 2017-07-05 16:24:34 +0100 | [diff] [blame] | 9 | extern unsigned long kmsg_bytes; |
| 10 | |
| Anton Vorontsov | 65f8c95 | 2012-07-17 14:26:15 -0700 | [diff] [blame] | 11 | #ifdef CONFIG_PSTORE_FTRACE |
| 12 | extern void pstore_register_ftrace(void); |
| Geliang Tang | ee1d267 | 2015-10-20 00:39:03 -0700 | [diff] [blame] | 13 | extern void pstore_unregister_ftrace(void); |
| Kees Cook | 16a5830 | 2020-05-08 08:42:12 -0700 | [diff] [blame] | 14 | ssize_t pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size, |
| 15 | const char *src_log, size_t src_log_size); |
| Anton Vorontsov | 65f8c95 | 2012-07-17 14:26:15 -0700 | [diff] [blame] | 16 | #else |
| 17 | static inline void pstore_register_ftrace(void) {} |
| Geliang Tang | ee1d267 | 2015-10-20 00:39:03 -0700 | [diff] [blame] | 18 | static inline void pstore_unregister_ftrace(void) {} |
| Kees Cook | 16a5830 | 2020-05-08 08:42:12 -0700 | [diff] [blame] | 19 | static inline ssize_t |
| 20 | pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size, |
| 21 | const char *src_log, size_t src_log_size) |
| 22 | { |
| 23 | *dest_log_size = 0; |
| 24 | return 0; |
| 25 | } |
| Anton Vorontsov | 65f8c95 | 2012-07-17 14:26:15 -0700 | [diff] [blame] | 26 | #endif |
| 27 | |
| Mark Salyzyn | 9d5438f | 2015-01-16 16:01:10 -0800 | [diff] [blame] | 28 | #ifdef CONFIG_PSTORE_PMSG |
| 29 | extern void pstore_register_pmsg(void); |
| Geliang Tang | ee1d267 | 2015-10-20 00:39:03 -0700 | [diff] [blame] | 30 | extern void pstore_unregister_pmsg(void); |
| Mark Salyzyn | 9d5438f | 2015-01-16 16:01:10 -0800 | [diff] [blame] | 31 | #else |
| 32 | static inline void pstore_register_pmsg(void) {} |
| Geliang Tang | ee1d267 | 2015-10-20 00:39:03 -0700 | [diff] [blame] | 33 | static inline void pstore_unregister_pmsg(void) {} |
| Mark Salyzyn | 9d5438f | 2015-01-16 16:01:10 -0800 | [diff] [blame] | 34 | #endif |
| 35 | |
| Anton Vorontsov | 060287b | 2012-07-09 17:10:41 -0700 | [diff] [blame] | 36 | extern struct pstore_info *psinfo; |
| 37 | |
| Luck, Tony | 366f7e7 | 2011-03-18 15:33:43 -0700 | [diff] [blame] | 38 | extern void pstore_set_kmsg_bytes(int); |
| Luck, Tony | 6dda926 | 2011-08-11 15:14:39 -0700 | [diff] [blame] | 39 | extern void pstore_get_records(int); |
| Kees Cook | 3a7d2fd | 2017-04-27 15:53:21 -0700 | [diff] [blame] | 40 | extern void pstore_get_backend_records(struct pstore_info *psi, |
| 41 | struct dentry *root, int quiet); |
| Kees Cook | 609e28bb | 2020-05-04 19:46:53 -0700 | [diff] [blame] | 42 | extern int pstore_put_backend_records(struct pstore_info *psi); |
| Kees Cook | 3a7d2fd | 2017-04-27 15:53:21 -0700 | [diff] [blame] | 43 | extern int pstore_mkfile(struct dentry *root, |
| 44 | struct pstore_record *record); |
| Kees Cook | e581ca8 | 2017-05-19 15:10:31 -0700 | [diff] [blame] | 45 | extern void pstore_record_init(struct pstore_record *record, |
| 46 | struct pstore_info *psi); |
| Anton Vorontsov | 060287b | 2012-07-09 17:10:41 -0700 | [diff] [blame] | 47 | |
| Kees Cook | cb095af | 2018-10-18 11:17:42 -0700 | [diff] [blame] | 48 | /* Called during pstore init/exit. */ |
| 49 | int __init pstore_init_fs(void); |
| 50 | void __exit pstore_exit_fs(void); |
| Kees Cook | fe1d475 | 2018-03-06 15:57:38 -0800 | [diff] [blame] | 51 | |
| Anton Vorontsov | 060287b | 2012-07-09 17:10:41 -0700 | [diff] [blame] | 52 | #endif |