treewide: refresh kmalloc_obj() conversionsgrafted

This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci

This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.

Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.

Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>

1 files changed, 189 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-max77650.c b/drivers/gpio/gpio-max77650.c
new file mode 100644
index 000000000..4540da4c1
--- /dev/null
+++ b/drivers/gpio/gpio-max77650.c
@@ -0,0 +1,189 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// GPIO driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/gpio/driver.h>
+#include <linux/i2c.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_GPIO_DIR_MASK		BIT(0)
+#define MAX77650_GPIO_INVAL_MASK	BIT(1)
+#define MAX77650_GPIO_DRV_MASK		BIT(2)
+#define MAX77650_GPIO_OUTVAL_MASK	BIT(3)
+#define MAX77650_GPIO_DEBOUNCE_MASK	BIT(4)
+
+#define MAX77650_GPIO_DIR_OUT		0x00
+#define MAX77650_GPIO_DIR_IN		BIT(0)
+#define MAX77650_GPIO_OUT_LOW		0x00
+#define MAX77650_GPIO_OUT_HIGH		BIT(3)
+#define MAX77650_GPIO_DRV_OPEN_DRAIN	0x00
+#define MAX77650_GPIO_DRV_PUSH_PULL	BIT(2)
+#define MAX77650_GPIO_DEBOUNCE		BIT(4)
+
+#define MAX77650_GPIO_DIR_BITS(_reg) \
+		((_reg) & MAX77650_GPIO_DIR_MASK)
+#define MAX77650_GPIO_INVAL_BITS(_reg) \
+		(((_reg) & MAX77650_GPIO_INVAL_MASK) >> 1)
+
+struct max77650_gpio_chip {
+	struct regmap *map;
+	struct gpio_chip gc;
+	int irq;
+};
+
+static int max77650_gpio_direction_input(struct gpio_chip *gc,
+					 unsigned int offset)
+{
+	struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+	return regmap_update_bits(chip->map,
+				  MAX77650_REG_CNFG_GPIO,
+				  MAX77650_GPIO_DIR_MASK,
+				  MAX77650_GPIO_DIR_IN);
+}
+
+static int max77650_gpio_direction_output(struct gpio_chip *gc,
+					  unsigned int offset, int value)
+{
+	struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+	int mask, regval;
+
+	mask = MAX77650_GPIO_DIR_MASK | MAX77650_GPIO_OUTVAL_MASK;
+	regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
+	regval |= MAX77650_GPIO_DIR_OUT;
+
+	return regmap_update_bits(chip->map,
+				  MAX77650_REG_CNFG_GPIO, mask, regval);
+}
+
+static int max77650_gpio_set_value(struct gpio_chip *gc,
+				   unsigned int offset, int value)
+{
+	struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+	int regval;
+
+	regval = value ? MAX77650_GPIO_OUT_HIGH : MAX77650_GPIO_OUT_LOW;
+
+	return regmap_update_bits(chip->map, MAX77650_REG_CNFG_GPIO,
+				  MAX77650_GPIO_OUTVAL_MASK, regval);
+}
+
+static int max77650_gpio_get_value(struct gpio_chip *gc,
+				   unsigned int offset)
+{
+	struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+	unsigned int val;
+	int rv;
+
+	rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
+	if (rv)
+		return rv;
+
+	return MAX77650_GPIO_INVAL_BITS(val);
+}
+
+static int max77650_gpio_get_direction(struct gpio_chip *gc,
+				       unsigned int offset)
+{
+	struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+	unsigned int val;
+	int rv;
+
+	rv = regmap_read(chip->map, MAX77650_REG_CNFG_GPIO, &val);
+	if (rv)
+		return rv;
+
+	return MAX77650_GPIO_DIR_BITS(val);
+}
+
+static int max77650_gpio_set_config(struct gpio_chip *gc,
+				    unsigned int offset, unsigned long cfg)
+{
+	struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+	switch (pinconf_to_config_param(cfg)) {
+	case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+		return regmap_update_bits(chip->map,
+					  MAX77650_REG_CNFG_GPIO,
+					  MAX77650_GPIO_DRV_MASK,
+					  MAX77650_GPIO_DRV_OPEN_DRAIN);
+	case PIN_CONFIG_DRIVE_PUSH_PULL:
+		return regmap_update_bits(chip->map,
+					  MAX77650_REG_CNFG_GPIO,
+					  MAX77650_GPIO_DRV_MASK,
+					  MAX77650_GPIO_DRV_PUSH_PULL);
+	case PIN_CONFIG_INPUT_DEBOUNCE:
+		return regmap_update_bits(chip->map,
+					  MAX77650_REG_CNFG_GPIO,
+					  MAX77650_GPIO_DEBOUNCE_MASK,
+					  MAX77650_GPIO_DEBOUNCE);
+	default:
+		return -ENOTSUPP;
+	}
+}
+
+static int max77650_gpio_to_irq(struct gpio_chip *gc, unsigned int offset)
+{
+	struct max77650_gpio_chip *chip = gpiochip_get_data(gc);
+
+	return chip->irq;
+}
+
+static int max77650_gpio_probe(struct platform_device *pdev)
+{
+	struct max77650_gpio_chip *chip;
+	struct device *dev, *parent;
+	struct i2c_client *i2c;
+
+	dev = &pdev->dev;
+	parent = dev->parent;
+	i2c = to_i2c_client(parent);
+
+	chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->map = dev_get_regmap(parent, NULL);
+	if (!chip->map)
+		return -ENODEV;
+
+	chip->irq = platform_get_irq_byname(pdev, "GPI");
+	if (chip->irq < 0)
+		return chip->irq;
+
+	chip->gc.base = -1;
+	chip->gc.ngpio = 1;
+	chip->gc.label = i2c->name;
+	chip->gc.parent = dev;
+	chip->gc.owner = THIS_MODULE;
+	chip->gc.can_sleep = true;
+
+	chip->gc.direction_input = max77650_gpio_direction_input;
+	chip->gc.direction_output = max77650_gpio_direction_output;
+	chip->gc.set = max77650_gpio_set_value;
+	chip->gc.get = max77650_gpio_get_value;
+	chip->gc.get_direction = max77650_gpio_get_direction;
+	chip->gc.set_config = max77650_gpio_set_config;
+	chip->gc.to_irq = max77650_gpio_to_irq;
+
+	return devm_gpiochip_add_data(dev, &chip->gc, chip);
+}
+
+static struct platform_driver max77650_gpio_driver = {
+	.driver = {
+		.name = "max77650-gpio",
+	},
+	.probe = max77650_gpio_probe,
+};
+module_platform_driver(max77650_gpio_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 GPIO driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:max77650-gpio");