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tty_audit: make tty pointers in exposed functions const

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Both tty_audit_add_data() and tty_audit_tiocsti() need only to read from
the tty struct, so make the tty parameters of them both const. This
aids the compiler a bit.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230621101611.10580-6-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2023-06-21 12:16:10 +02:00 committed by Greg Kroah-Hartman
parent 3e540a7bad
commit e64ed44bce
2 changed files with 9 additions and 7 deletions
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11
drivers/tty/tty.h
View File

@ -99,14 +99,15 @@ extern int tty_ldisc_autoload;
/* tty_audit.c */
#ifdef CONFIG_AUDIT
void tty_audit_add_data(struct tty_struct *tty, const void *data, size_t size);
void tty_audit_tiocsti(struct tty_struct *tty, char ch);
void tty_audit_add_data(const struct tty_struct *tty, const void *data,
size_t size);
void tty_audit_tiocsti(const struct tty_struct *tty, char ch);
#else
static inline void tty_audit_add_data(struct tty_struct *tty, const void *data,
size_t size)
static inline void tty_audit_add_data(const struct tty_struct *tty,
const void *data, size_t size)
{
}
static inline void tty_audit_tiocsti(struct tty_struct *tty, char ch)
static inline void tty_audit_tiocsti(const struct tty_struct *tty, char ch)
{
}
#endif

5
drivers/tty/tty_audit.c
View File

@ -134,7 +134,7 @@ void tty_audit_fork(struct signal_struct *sig)
/*
* tty_audit_tiocsti - Log TIOCSTI
*/
void tty_audit_tiocsti(struct tty_struct *tty, char ch)
void tty_audit_tiocsti(const struct tty_struct *tty, char ch)
{
dev_t dev;
@ -199,7 +199,8 @@ static struct tty_audit_buf *tty_audit_buf_get(void)
*
* Audit @data of @size from @tty, if necessary.
*/
void tty_audit_add_data(struct tty_struct *tty, const void *data, size_t size)
void tty_audit_add_data(const struct tty_struct *tty, const void *data,
size_t size)
{
struct tty_audit_buf *buf;
unsigned int audit_tty;