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tty: n_tty: unify counts to size_t

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Some count types are already 'size_t' for a long time. Some were
switched to 'size_t' recently. Unify the rest with those now.

This allows for some min_t()s to become min()s. And make one min()
an explicit min_t() as we are comparing signed 'room' to unsigned
'count'.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230827074147.2287-13-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby (SUSE) 2023-08-27 09:41:45 +02:00 committed by Greg Kroah-Hartman
parent b9b96b2089
commit e30364c708
1 changed files with 15 additions and 17 deletions
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32
drivers/tty/n_tty.c
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@ -1523,27 +1523,27 @@ static void n_tty_lookahead_flow_ctrl(struct tty_struct *tty, const u8 *cp,
static void
n_tty_receive_buf_real_raw(const struct tty_struct *tty, const u8 *cp,
int count)
size_t count)
{
struct n_tty_data *ldata = tty->disc_data;
size_t n, head;
head = MASK(ldata->read_head);
n = min_t(size_t, count, N_TTY_BUF_SIZE - head);
n = min(count, N_TTY_BUF_SIZE - head);
memcpy(read_buf_addr(ldata, head), cp, n);
ldata->read_head += n;
cp += n;
count -= n;
head = MASK(ldata->read_head);
n = min_t(size_t, count, N_TTY_BUF_SIZE - head);
n = min(count, N_TTY_BUF_SIZE - head);
memcpy(read_buf_addr(ldata, head), cp, n);
ldata->read_head += n;
}
static void
n_tty_receive_buf_raw(struct tty_struct *tty, const u8 *cp, const u8 *fp,
int count)
size_t count)
{
struct n_tty_data *ldata = tty->disc_data;
u8 flag = TTY_NORMAL;
@ -1560,7 +1560,7 @@ n_tty_receive_buf_raw(struct tty_struct *tty, const u8 *cp, const u8 *fp,
static void
n_tty_receive_buf_closing(struct tty_struct *tty, const u8 *cp, const u8 *fp,
int count, bool lookahead_done)
size_t count, bool lookahead_done)
{
u8 flag = TTY_NORMAL;
@ -1573,7 +1573,7 @@ n_tty_receive_buf_closing(struct tty_struct *tty, const u8 *cp, const u8 *fp,
}
static void n_tty_receive_buf_standard(struct tty_struct *tty, const u8 *cp,
const u8 *fp, int count,
const u8 *fp, size_t count,
bool lookahead_done)
{
struct n_tty_data *ldata = tty->disc_data;
@ -1612,11 +1612,11 @@ static void n_tty_receive_buf_standard(struct tty_struct *tty, const u8 *cp,
}
static void __receive_buf(struct tty_struct *tty, const u8 *cp, const u8 *fp,
int count)
size_t count)
{
struct n_tty_data *ldata = tty->disc_data;
bool preops = I_ISTRIP(tty) || (I_IUCLC(tty) && L_IEXTEN(tty));
size_t la_count = min_t(size_t, ldata->lookahead_count, count);
size_t la_count = min(ldata->lookahead_count, count);
if (ldata->real_raw)
n_tty_receive_buf_real_raw(tty, cp, count);
@ -1687,11 +1687,11 @@ static void __receive_buf(struct tty_struct *tty, const u8 *cp, const u8 *fp,
*/
static size_t
n_tty_receive_buf_common(struct tty_struct *tty, const u8 *cp, const u8 *fp,
int count, bool flow)
size_t count, bool flow)
{
struct n_tty_data *ldata = tty->disc_data;
size_t rcvd = 0;
int room, n, overflow;
size_t n, rcvd = 0;
int room, overflow;
down_read(&tty->termios_rwsem);
@ -1724,7 +1724,7 @@ n_tty_receive_buf_common(struct tty_struct *tty, const u8 *cp, const u8 *fp,
} else
overflow = 0;
n = min(count, room);
n = min_t(size_t, count, room);
if (!n)
break;
@ -1954,9 +1954,8 @@ static inline int input_available_p(const struct tty_struct *tty, int poll)
* caller holds non-exclusive %termios_rwsem;
* read_tail published
*/
static bool copy_from_read_buf(const struct tty_struct *tty,
u8 **kbp,
size_t *nr)
static bool copy_from_read_buf(const struct tty_struct *tty, u8 **kbp,
size_t *nr)
{
struct n_tty_data *ldata = tty->disc_data;
@ -2009,8 +2008,7 @@ static bool copy_from_read_buf(const struct tty_struct *tty,
* caller holds non-exclusive %termios_rwsem;
* read_tail published
*/
static bool canon_copy_from_read_buf(const struct tty_struct *tty,
u8 **kbp,
static bool canon_copy_from_read_buf(const struct tty_struct *tty, u8 **kbp,
size_t *nr)
{
struct n_tty_data *ldata = tty->disc_data;