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tty: cyclades: Convert timers to use timer_setup()

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In preparation for unconditionally passing the struct timer_list
pointer to all timer callbacks, switch to using the new timer_setup() and
from_timer() to pass the timer pointer explicitly. Moves timer structures
from global to attached to struct cyclades_port.

Cc: Jiri Slaby <jslaby@suse.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kees Cook 2017-10-24 03:00:18 -07:00 committed by Greg Kroah-Hartman
parent 4790b6dc7a
commit a8497b31fe
2 changed files with 9 additions and 10 deletions
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16
drivers/tty/cyclades.c
View File

@ -286,8 +286,7 @@ static long cyz_polling_cycle = CZ_DEF_POLL;
static DEFINE_TIMER(cyz_timerlist, cyz_poll, 0, 0);
#else /* CONFIG_CYZ_INTR */
static void cyz_rx_restart(unsigned long);
static struct timer_list cyz_rx_full_timer[NR_PORTS];
static void cyz_rx_restart(struct timer_list *);
#endif /* CONFIG_CYZ_INTR */
static void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val)
@ -992,10 +991,8 @@ static void cyz_handle_rx(struct cyclades_port *info)
else
char_count = rx_put - rx_get + rx_bufsize;
if (char_count >= readl(&buf_ctrl->rx_threshold) &&
!timer_pending(&cyz_rx_full_timer[
info->line]))
mod_timer(&cyz_rx_full_timer[info->line],
jiffies + 1);
!timer_pending(&info->rx_full_timer))
mod_timer(&info->rx_full_timer, jiffies + 1);
#endif
info->idle_stats.recv_idle = jiffies;
tty_schedule_flip(&info->port);
@ -1197,9 +1194,9 @@ static irqreturn_t cyz_interrupt(int irq, void *dev_id)
return IRQ_HANDLED;
} /* cyz_interrupt */
static void cyz_rx_restart(unsigned long arg)
static void cyz_rx_restart(struct timer_list *t)
{
struct cyclades_port *info = (struct cyclades_port *)arg;
struct cyclades_port *info = from_timer(info, t, rx_full_timer);
struct cyclades_card *card = info->card;
int retval;
__u32 channel = info->line - card->first_line;
@ -3097,8 +3094,7 @@ static int cy_init_card(struct cyclades_card *cinfo)
else
info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE;
#ifdef CONFIG_CYZ_INTR
setup_timer(&cyz_rx_full_timer[port],
cyz_rx_restart, (unsigned long)info);
timer_setup(&info->rx_full_timer, cyz_rx_restart, 0);
#endif
} else {
unsigned short chip_number;

3
include/linux/cyclades.h
View File

@ -156,6 +156,9 @@ struct cyclades_port {
struct cyclades_icount icount;
struct completion shutdown_wait;
int throttle;
#ifdef CONFIG_CYZ_INTR
struct timer_list rx_full_timer;
#endif
};
#define CLOSING_WAIT_DELAY 30*HZ