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tty: core: the rest to u8

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There are still last minor users in the tty core that still reference
characters by the 'char' type. Switch them to u8.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231206073712.17776-6-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2023-12-06 08:36:50 +01:00 committed by Greg Kroah-Hartman
parent 3a00da0279
commit 4e8d887814
2 changed files with 7 additions and 7 deletions
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10
drivers/tty/tty_io.c
View File

@ -852,9 +852,9 @@ static ssize_t iterate_tty_read(struct tty_ldisc *ld, struct tty_struct *tty,
{
void *cookie = NULL;
unsigned long offset = 0;
char kernel_buf[64];
ssize_t retval = 0;
size_t copied, count = iov_iter_count(to);
u8 kernel_buf[64];
do {
ssize_t size = min(count, sizeof(kernel_buf));
@ -995,7 +995,7 @@ static ssize_t iterate_tty_write(struct tty_ldisc *ld, struct tty_struct *tty,
/* write_buf/write_cnt is protected by the atomic_write_lock mutex */
if (tty->write_cnt < chunk) {
unsigned char *buf_chunk;
u8 *buf_chunk;
if (chunk < 1024)
chunk = 1024;
@ -2278,10 +2278,10 @@ static bool tty_legacy_tiocsti __read_mostly = IS_ENABLED(CONFIG_LEGACY_TIOCSTI)
* * Called functions take tty_ldiscs_lock
* * current->signal->tty check is safe without locks
*/
static int tiocsti(struct tty_struct *tty, char __user *p)
static int tiocsti(struct tty_struct *tty, u8 __user *p)
{
char ch;
struct tty_ldisc *ld;
u8 ch;
if (!tty_legacy_tiocsti && !capable(CAP_SYS_ADMIN))
return -EIO;
@ -3142,7 +3142,7 @@ struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx)
*
* Return: the number of characters successfully output.
*/
int tty_put_char(struct tty_struct *tty, unsigned char ch)
int tty_put_char(struct tty_struct *tty, u8 ch)
{
if (tty->ops->put_char)
return tty->ops->put_char(tty, ch);

4
include/linux/tty.h
View File

@ -242,7 +242,7 @@ struct tty_struct {
void *driver_data;
spinlock_t files_lock;
int write_cnt;
unsigned char *write_buf;
u8 *write_buf;
struct list_head tty_files;
@ -411,7 +411,7 @@ void stop_tty(struct tty_struct *tty);
void start_tty(struct tty_struct *tty);
void tty_write_message(struct tty_struct *tty, char *msg);
int tty_send_xchar(struct tty_struct *tty, u8 ch);
int tty_put_char(struct tty_struct *tty, unsigned char c);
int tty_put_char(struct tty_struct *tty, u8 c);
unsigned int tty_chars_in_buffer(struct tty_struct *tty);
unsigned int tty_write_room(struct tty_struct *tty);
void tty_driver_flush_buffer(struct tty_struct *tty);