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Revert "mei: vsc: Call wake_up() in the threaded IRQ handler" 

commit e3dc66d998 upstream.

This reverts commit 058a38acba.

It's not necessary to avoid a spinlock, a sleeping lock on PREEMPT_RT, in
an interrupt handler as the interrupt handler itself would be called in a
process context if PREEMPT_RT is enabled. So revert the patch.

Cc: stable@vger.kernel.org # for 6.8
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20240403051341.3534650-1-wentong.wu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sakari Ailus 2024-04-03 13:13:40 +08:00 committed by Greg Kroah-Hartman
parent e4e47e406d
commit e73fcc50e8
1 changed files with 2 additions and 2 deletions
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4
drivers/misc/mei/vsc-tp.c
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@ -419,6 +419,8 @@ static irqreturn_t vsc_tp_isr(int irq, void *data)
atomic_inc(&tp->assert_cnt);
wake_up(&tp->xfer_wait);
return IRQ_WAKE_THREAD;
}
@ -426,8 +428,6 @@ static irqreturn_t vsc_tp_thread_isr(int irq, void *data)
{
struct vsc_tp *tp = data;
wake_up(&tp->xfer_wait);
if (tp->event_notify)
tp->event_notify(tp->event_notify_context);