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, 153 insertions, 0 deletions

diff --git a/drivers/input/keyboard/stowaway.c b/drivers/input/keyboard/stowaway.c
new file mode 100644
index 000000000..eade05542
--- /dev/null
+++ b/drivers/input/keyboard/stowaway.c
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Stowaway keyboard driver for Linux
+ */
+
+/*
+ *  Copyright (c) 2006 Marek Vasut
+ *
+ *  Based on Newton keyboard driver for Linux
+ *  by Justin Cormack
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/input.h>
+#include <linux/serio.h>
+
+#define DRIVER_DESC	"Stowaway keyboard driver"
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+#define SKBD_KEY_MASK	0x7f
+#define SKBD_RELEASE	0x80
+
+static unsigned char skbd_keycode[128] = {
+	KEY_1, KEY_2, KEY_3, KEY_Z, KEY_4, KEY_5, KEY_6, KEY_7,
+	0, KEY_Q, KEY_W, KEY_E, KEY_R, KEY_T, KEY_Y, KEY_GRAVE,
+	KEY_X, KEY_A, KEY_S, KEY_D, KEY_F, KEY_G, KEY_H, KEY_SPACE,
+	KEY_CAPSLOCK, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0,
+	0, 0, 0, KEY_LEFTALT, 0, 0, 0, 0,
+	0, 0, 0, 0, KEY_C, KEY_V, KEY_B, KEY_N,
+	KEY_MINUS, KEY_EQUAL, KEY_BACKSPACE, KEY_HOME, KEY_8, KEY_9, KEY_0, KEY_ESC,
+	KEY_LEFTBRACE, KEY_RIGHTBRACE, KEY_BACKSLASH, KEY_END, KEY_U, KEY_I, KEY_O, KEY_P,
+	KEY_APOSTROPHE, KEY_ENTER, KEY_PAGEUP,0, KEY_J, KEY_K, KEY_L, KEY_SEMICOLON,
+	KEY_SLASH, KEY_UP, KEY_PAGEDOWN, 0,KEY_M, KEY_COMMA, KEY_DOT, KEY_INSERT,
+	KEY_DELETE, KEY_LEFT, KEY_DOWN, KEY_RIGHT,  0, 0, 0,
+	KEY_LEFTSHIFT, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0,
+	0, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7,
+	KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, 0, 0, 0
+};
+
+struct skbd {
+	unsigned char keycode[128];
+	struct input_dev *dev;
+	struct serio *serio;
+	char phys[32];
+};
+
+static irqreturn_t skbd_interrupt(struct serio *serio, unsigned char data,
+				  unsigned int flags)
+{
+	struct skbd *skbd = serio_get_drvdata(serio);
+	struct input_dev *dev = skbd->dev;
+
+	if (skbd->keycode[data & SKBD_KEY_MASK]) {
+		input_report_key(dev, skbd->keycode[data & SKBD_KEY_MASK],
+				 !(data & SKBD_RELEASE));
+		input_sync(dev);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int skbd_connect(struct serio *serio, struct serio_driver *drv)
+{
+	struct skbd *skbd;
+	struct input_dev *input_dev;
+	int err = -ENOMEM;
+	int i;
+
+	skbd = kzalloc_obj(*skbd);
+	input_dev = input_allocate_device();
+	if (!skbd || !input_dev)
+		goto fail1;
+
+	skbd->serio = serio;
+	skbd->dev = input_dev;
+	snprintf(skbd->phys, sizeof(skbd->phys), "%s/input0", serio->phys);
+	memcpy(skbd->keycode, skbd_keycode, sizeof(skbd->keycode));
+
+	input_dev->name = "Stowaway Keyboard";
+	input_dev->phys = skbd->phys;
+	input_dev->id.bustype = BUS_RS232;
+	input_dev->id.vendor = SERIO_STOWAWAY;
+	input_dev->id.product = 0x0001;
+	input_dev->id.version = 0x0100;
+	input_dev->dev.parent = &serio->dev;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
+	input_dev->keycode = skbd->keycode;
+	input_dev->keycodesize = sizeof(unsigned char);
+	input_dev->keycodemax = ARRAY_SIZE(skbd_keycode);
+	for (i = 0; i < ARRAY_SIZE(skbd_keycode); i++)
+		set_bit(skbd_keycode[i], input_dev->keybit);
+	clear_bit(0, input_dev->keybit);
+
+	serio_set_drvdata(serio, skbd);
+
+	err = serio_open(serio, drv);
+	if (err)
+		goto fail2;
+
+	err = input_register_device(skbd->dev);
+	if (err)
+		goto fail3;
+
+	return 0;
+
+ fail3: serio_close(serio);
+ fail2:	serio_set_drvdata(serio, NULL);
+ fail1:	input_free_device(input_dev);
+	kfree(skbd);
+	return err;
+}
+
+static void skbd_disconnect(struct serio *serio)
+{
+	struct skbd *skbd = serio_get_drvdata(serio);
+
+	serio_close(serio);
+	serio_set_drvdata(serio, NULL);
+	input_unregister_device(skbd->dev);
+	kfree(skbd);
+}
+
+static const struct serio_device_id skbd_serio_ids[] = {
+	{
+		.type	= SERIO_RS232,
+		.proto	= SERIO_STOWAWAY,
+		.id	= SERIO_ANY,
+		.extra	= SERIO_ANY,
+	},
+	{ 0 }
+};
+
+MODULE_DEVICE_TABLE(serio, skbd_serio_ids);
+
+static struct serio_driver skbd_drv = {
+	.driver		= {
+		.name	= "stowaway",
+	},
+	.description	= DRIVER_DESC,
+	.id_table	= skbd_serio_ids,
+	.interrupt	= skbd_interrupt,
+	.connect	= skbd_connect,
+	.disconnect	= skbd_disconnect,
+};
+
+module_serio_driver(skbd_drv);