summaryrefslogtreecommitdiffstats
path: root/drivers/tty
diff options
context:
space:
mode:
authorJiri Slaby <jslaby@suse.cz>2021-06-18 08:14:37 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-06-18 13:10:00 +0200
commit95b3ea4c6f45f3172dae29f303579743c2aa303d (patch)
tree14ce6a5d5b7972221db097bac814254cd335cbb2 /drivers/tty
parentmxser: remove MOXA_HighSpeedOn ioctl (diff)
downloadlinux-95b3ea4c6f45f3172dae29f303579743c2aa303d.tar.xz
linux-95b3ea4c6f45f3172dae29f303579743c2aa303d.zip
mxser: remove cnt from mxser_receive_chars
After the previous ioctls removal, cnt is needed only in mxser_receive_chars_old now. So remove it from mxser_receive_chars and mxser_receive_chars_new and account only in mxser_receive_chars_old. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210618061516.662-32-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
-rw-r--r--drivers/tty/mxser.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 586fa3575673..d354c80083fd 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1743,7 +1743,7 @@ static int mxser_rs_break(struct tty_struct *tty, int break_state)
}
static bool mxser_receive_chars_new(struct tty_struct *tty,
- struct mxser_port *port, u8 status, int *cnt)
+ struct mxser_port *port, u8 status)
{
enum mxser_must_hwid hwid = port->board->must_hwid;
u8 gdl;
@@ -1767,19 +1767,19 @@ static bool mxser_receive_chars_new(struct tty_struct *tty,
while (gdl--) {
u8 ch = inb(port->ioaddr + UART_RX);
tty_insert_flip_char(&port->port, ch, 0);
- (*cnt)++;
}
return true;
}
static u8 mxser_receive_chars_old(struct tty_struct *tty,
- struct mxser_port *port, u8 status, int *cnt)
+ struct mxser_port *port, u8 status)
{
enum mxser_must_hwid hwid = port->board->must_hwid;
int recv_room = tty->receive_room;
int ignored = 0;
int max = 256;
+ int cnt = 0;
u8 ch;
do {
@@ -1814,8 +1814,8 @@ static u8 mxser_receive_chars_old(struct tty_struct *tty,
}
}
tty_insert_flip_char(&port->port, ch, flag);
- (*cnt)++;
- if (*cnt >= recv_room) {
+ cnt++;
+ if (cnt >= recv_room) {
if (!port->ldisc_stop_rx)
mxser_stoprx(tty);
break;
@@ -1835,13 +1835,11 @@ static u8 mxser_receive_chars_old(struct tty_struct *tty,
static u8 mxser_receive_chars(struct tty_struct *tty,
struct mxser_port *port, u8 status)
{
- int cnt = 0;
-
if (tty->receive_room == 0 && !port->ldisc_stop_rx)
mxser_stoprx(tty);
- if (!mxser_receive_chars_new(tty, port, status, &cnt))
- status = mxser_receive_chars_old(tty, port, status, &cnt);
+ if (!mxser_receive_chars_new(tty, port, status))
+ status = mxser_receive_chars_old(tty, port, status);
tty_flip_buffer_push(&port->port);