scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 169 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/gunze.c b/drivers/input/touchscreen/gunze.c
new file mode 100644
index 000000000..2baeb4f3b
--- /dev/null
+++ b/drivers/input/touchscreen/gunze.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) 2000-2001 Vojtech Pavlik
+ */
+
+/*
+ * Gunze AHL-51S touchscreen driver for Linux
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"Gunze AHL-51S touchscreen driver"
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/*
+ * Definitions & global arrays.
+ */
+
+#define	GUNZE_MAX_LENGTH	10
+
+/*
+ * Per-touchscreen data.
+ */
+
+struct gunze {
+	struct input_dev *dev;
+	struct serio *serio;
+	int idx;
+	unsigned char data[GUNZE_MAX_LENGTH];
+	char phys[32];
+};
+
+static void gunze_process_packet(struct gunze *gunze)
+{
+	struct input_dev *dev = gunze->dev;
+
+	if (gunze->idx != GUNZE_MAX_LENGTH || gunze->data[5] != ',' ||
+		(gunze->data[0] != 'T' && gunze->data[0] != 'R')) {
+		printk(KERN_WARNING "gunze.c: bad packet: >%.*s<\n", GUNZE_MAX_LENGTH, gunze->data);
+		return;
+	}
+
+	input_report_abs(dev, ABS_X, simple_strtoul(gunze->data + 1, NULL, 10));
+	input_report_abs(dev, ABS_Y, 1024 - simple_strtoul(gunze->data + 6, NULL, 10));
+	input_report_key(dev, BTN_TOUCH, gunze->data[0] == 'T');
+	input_sync(dev);
+}
+
+static irqreturn_t gunze_interrupt(struct serio *serio,
+		unsigned char data, unsigned int flags)
+{
+	struct gunze *gunze = serio_get_drvdata(serio);
+
+	if (data == '\r') {
+		gunze_process_packet(gunze);
+		gunze->idx = 0;
+	} else {
+		if (gunze->idx < GUNZE_MAX_LENGTH)
+			gunze->data[gunze->idx++] = data;
+	}
+	return IRQ_HANDLED;
+}
+
+/*
+ * gunze_disconnect() is the opposite of gunze_connect()
+ */
+
+static void gunze_disconnect(struct serio *serio)
+{
+	struct gunze *gunze = serio_get_drvdata(serio);
+
+	input_get_device(gunze->dev);
+	input_unregister_device(gunze->dev);
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_put_device(gunze->dev);
+	kfree(gunze);
+}
+
+/*
+ * gunze_connect() is the routine that is called when someone adds a
+ * new serio device that supports Gunze protocol and registers it as
+ * an input device.
+ */
+
+static int gunze_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct gunze *gunze;
+	struct input_dev *input_dev;
+	int err;
+
+	gunze = kzalloc_obj(*gunze);
+	input_dev = input_allocate_device();
+	if (!gunze || !input_dev) {
+		err = -ENOMEM;
+		goto fail1;
+	}
+
+	gunze->serio = serio;
+	gunze->dev = input_dev;
+	scnprintf(gunze->phys, sizeof(serio->phys), "%s/input0", serio->phys);
+
+	input_dev->name = "Gunze AHL-51S TouchScreen";
+	input_dev->phys = gunze->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_GUNZE;
+	input_dev->id.product = 0x0051;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
+	input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+	input_set_abs_params(input_dev, ABS_X, 24, 1000, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y, 24, 1000, 0, 0);
+
+	serio_set_drvdata(serio, gunze);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(gunze->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3:	serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(gunze);
+	return err;
+}
+
+/*
+ * The serio driver structure.
+ */
+
+static const struct serio_device_id gunze_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_GUNZE,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, gunze_serio_ids);
+
+static struct serio_driver gunze_drv = {
+	.driver		= {
+		.name	= "gunze",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= gunze_serio_ids,
+	.interrupt	= gunze_interrupt,
+	.connect	= gunze_connect,
+	.disconnect	= gunze_disconnect,
+};
+
+module_serio_driver(gunze_drv);