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audit: avoid missing-prototype warnings

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Building with 'make W=1' reveals two function definitions without
a previous prototype in the audit code:

lib/compat_audit.c:32:5: error: no previous prototype for 'audit_classify_compat_syscall' [-Werror=missing-prototypes]
kernel/audit.c:1813:14: error: no previous prototype for 'audit_serial' [-Werror=missing-prototypes]

The first one needs a declaration from linux/audit.h but cannot
include that header without causing conflicting (compat) syscall number
definitions, so move the it into linux/audit_arch.h.

The second one is declared conditionally based on CONFIG_AUDITSYSCALL
but needed as a local function even when that option is disabled, so
move the declaration out of the #ifdef block.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Arnd Bergmann
2023-05-17 15:10:52 +02:00
committed by Paul Moore
parent ac9a78681b
commit e455ca40db
3 changed files with 3 additions and 3 deletions
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2
include/linux/audit.h
View File

@@ -130,8 +130,6 @@ extern unsigned compat_dir_class[];
extern unsigned compat_chattr_class[]; extern unsigned compat_chattr_class[];
extern unsigned compat_signal_class[]; extern unsigned compat_signal_class[];
extern int audit_classify_compat_syscall(int abi, unsigned syscall);
/* audit_names->type values */ /* audit_names->type values */
#define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */ #define AUDIT_TYPE_UNKNOWN 0 /* we don't know yet */
#define AUDIT_TYPE_NORMAL 1 /* a "normal" audit record */ #define AUDIT_TYPE_NORMAL 1 /* a "normal" audit record */

2
include/linux/audit_arch.h
View File

@@ -21,4 +21,6 @@ enum auditsc_class_t {
AUDITSC_NVALS /* count */ AUDITSC_NVALS /* count */
}; };
extern int audit_classify_compat_syscall(int abi, unsigned syscall);
#endif #endif

2
kernel/audit.h
View File

@@ -259,8 +259,8 @@ extern struct tty_struct *audit_get_tty(void);
extern void audit_put_tty(struct tty_struct *tty); extern void audit_put_tty(struct tty_struct *tty);
/* audit watch/mark/tree functions */ /* audit watch/mark/tree functions */
#ifdef CONFIG_AUDITSYSCALL
extern unsigned int audit_serial(void); extern unsigned int audit_serial(void);
#ifdef CONFIG_AUDITSYSCALL
extern int auditsc_get_stamp(struct audit_context *ctx, extern int auditsc_get_stamp(struct audit_context *ctx,
struct timespec64 *t, unsigned int *serial); struct timespec64 *t, unsigned int *serial);