tst_timer
struct idt77252_dev *card = timer_container_of(card, t, tst_timer);
mod_timer(&card->tst_timer, jiffies + 1);
mod_timer(&card->tst_timer, jiffies + 1);
if (timer_pending(&card->tst_timer))
if (!timer_pending(&card->tst_timer))
mod_timer(&card->tst_timer, jiffies + 1);
if (timer_pending(&card->tst_timer))
if (!timer_pending(&card->tst_timer))
mod_timer(&card->tst_timer, jiffies + 1);
if (!timer_pending(&card->tst_timer))
mod_timer(&card->tst_timer, jiffies + 1);
timer_setup(&card->tst_timer, tst_timer, 0);
timer_shutdown_sync(&card->tst_timer);
struct timer_list tst_timer;