[tip: sched/fifo] sched,serial: Convert to sched_set_fifo()

[tip-bot2 for Peter Zijlstra]

The following commit has been merged into the sched/fifo branch of tip:

Commit-ID:     28d2f209cd1620afaca6d0a61d1e88a269e9e875
Gitweb:        https://git.kernel.org/tip/28d2f209cd1620afaca6d0a61d1e88a269e9e875
Author:        Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate:    Tue, 21 Apr 2020 12:09:13 +02:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Mon, 15 Jun 2020 14:10:23 +02:00

sched,serial: Convert to sched_set_fifo()

Because SCHED_FIFO is a broken scheduler model (see previous patches)
take away the priority field, the kernel can't possibly make an
informed decision.

Effectively no change.

Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 drivers/tty/serial/sc16is7xx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index d2e5c6c..809610b 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1179,7 +1179,6 @@ static int sc16is7xx_probe(struct device *dev,
 			   const struct sc16is7xx_devtype *devtype,
 			   struct regmap *regmap, int irq)
 {
-	struct sched_param sched_param = { .sched_priority = MAX_RT_PRIO / 2 };
 	unsigned long freq = 0, *pfreq = dev_get_platdata(dev);
 	unsigned int val;
 	u32 uartclk = 0;
@@ -1239,7 +1238,7 @@ static int sc16is7xx_probe(struct device *dev,
 		ret = PTR_ERR(s->kworker_task);
 		goto out_clk;
 	}
-	sched_setscheduler(s->kworker_task, SCHED_FIFO, &sched_param);
+	sched_set_fifo(s->kworker_task);
 
 #ifdef CONFIG_GPIOLIB
 	if (devtype->nr_gpio) {