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, 61 insertions, 0 deletions

diff --git a/drivers/gpio/gpiolib-of.h b/drivers/gpio/gpiolib-of.h
new file mode 100644
index 000000000..218cfe5bc
--- /dev/null
+++ b/drivers/gpio/gpiolib-of.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef GPIOLIB_OF_H
+#define GPIOLIB_OF_H
+
+#include <linux/err.h>
+#include <linux/types.h>
+
+#include <linux/notifier.h>
+
+struct device_node;
+struct fwnode_handle;
+struct fwnode_reference_args;
+
+struct gpio_chip;
+struct gpio_desc;
+struct gpio_device;
+
+#ifdef CONFIG_OF_GPIO
+struct gpio_desc *of_find_gpio(struct device_node *np,
+			       const char *con_id,
+			       unsigned int idx,
+			       unsigned long *lookupflags);
+int of_gpiochip_add(struct gpio_chip *gc);
+void of_gpiochip_remove(struct gpio_chip *gc);
+bool of_gpiochip_instance_match(struct gpio_chip *gc, unsigned int index);
+int of_gpio_count(const struct fwnode_handle *fwnode, const char *con_id);
+int of_gpiochip_get_lflags(struct gpio_chip *chip,
+			   struct fwnode_reference_args *gpiospec,
+			   unsigned long *lflags);
+#else
+static inline struct gpio_desc *of_find_gpio(struct device_node *np,
+					     const char *con_id,
+					     unsigned int idx,
+					     unsigned long *lookupflags)
+{
+	return ERR_PTR(-ENOENT);
+}
+static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
+static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
+static inline bool of_gpiochip_instance_match(struct gpio_chip *gc,
+					      unsigned int index)
+{
+	return false;
+}
+static inline int of_gpio_count(const struct fwnode_handle *fwnode,
+				const char *con_id)
+{
+	return 0;
+}
+static inline int of_gpiochip_get_lflags(struct gpio_chip *chip,
+					 struct fwnode_reference_args *gpiospec,
+					 unsigned long *lflags)
+{
+	return -ENOENT;
+}
+#endif /* CONFIG_OF_GPIO */
+
+extern struct notifier_block gpio_of_notifier;
+
+#endif /* GPIOLIB_OF_H */