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, 94 insertions, 0 deletions

diff --git a/drivers/input/misc/rave-sp-pwrbutton.c b/drivers/input/misc/rave-sp-pwrbutton.c
new file mode 100644
index 000000000..bcab3cdb7
--- /dev/null
+++ b/drivers/input/misc/rave-sp-pwrbutton.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Power Button driver for RAVE SP
+//
+// Copyright (C) 2017 Zodiac Inflight Innovations
+//
+//
+
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/rave-sp.h>
+#include <linux/platform_device.h>
+
+#define RAVE_SP_EVNT_BUTTON_PRESS	(RAVE_SP_EVNT_BASE + 0x00)
+
+struct rave_sp_power_button {
+	struct input_dev *idev;
+	struct notifier_block nb;
+};
+
+static int rave_sp_power_button_event(struct notifier_block *nb,
+				      unsigned long action, void *data)
+{
+	struct rave_sp_power_button *pb =
+		container_of(nb, struct rave_sp_power_button, nb);
+	const u8 event = rave_sp_action_unpack_event(action);
+	const u8 value = rave_sp_action_unpack_value(action);
+	struct input_dev *idev = pb->idev;
+
+	if (event == RAVE_SP_EVNT_BUTTON_PRESS) {
+		input_report_key(idev, KEY_POWER, value);
+		input_sync(idev);
+
+		return NOTIFY_STOP;
+	}
+
+	return NOTIFY_DONE;
+}
+
+static int rave_sp_pwrbutton_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rave_sp_power_button *pb;
+	struct input_dev *idev;
+	int error;
+
+	pb = devm_kzalloc(dev, sizeof(*pb), GFP_KERNEL);
+	if (!pb)
+		return -ENOMEM;
+
+	idev = devm_input_allocate_device(dev);
+	if (!idev)
+		return -ENOMEM;
+
+	idev->name = pdev->name;
+
+	input_set_capability(idev, EV_KEY, KEY_POWER);
+
+	error = input_register_device(idev);
+	if (error)
+		return error;
+
+	pb->idev = idev;
+	pb->nb.notifier_call = rave_sp_power_button_event;
+	pb->nb.priority = 128;
+
+	error = devm_rave_sp_register_event_notifier(dev, &pb->nb);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static const struct of_device_id rave_sp_pwrbutton_of_match[] = {
+	{ .compatible = "zii,rave-sp-pwrbutton" },
+	{}
+};
+
+static struct platform_driver rave_sp_pwrbutton_driver = {
+	.probe = rave_sp_pwrbutton_probe,
+	.driver	= {
+		.name = KBUILD_MODNAME,
+		.of_match_table = rave_sp_pwrbutton_of_match,
+	},
+};
+module_platform_driver(rave_sp_pwrbutton_driver);
+
+MODULE_DEVICE_TABLE(of, rave_sp_pwrbutton_of_match);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Andrey Vostrikov <andrey.vostrikov@cogentembedded.com>");
+MODULE_AUTHOR("Nikita Yushchenko <nikita.yoush@cogentembedded.com>");
+MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@gmail.com>");
+MODULE_DESCRIPTION("RAVE SP Power Button driver");