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, 177 insertions, 0 deletions

diff --git a/arch/m68k/emu/nfcon.c b/arch/m68k/emu/nfcon.c
new file mode 100644
index 000000000..f4657d9f4
--- /dev/null
+++ b/arch/m68k/emu/nfcon.c
@@ -0,0 +1,177 @@
+/*
+ * ARAnyM console driver
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/tty.h>
+#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+
+#include <asm/natfeat.h>
+
+static int stderr_id;
+static struct tty_port nfcon_tty_port;
+static struct tty_driver *nfcon_tty_driver;
+
+static void nfputs(const u8 *str, size_t count)
+{
+	u8 buf[68];
+	unsigned long phys = virt_to_phys(buf);
+
+	buf[64] = 0;
+	while (count > 64) {
+		memcpy(buf, str, 64);
+		nf_call(stderr_id, phys);
+		str += 64;
+		count -= 64;
+	}
+	memcpy(buf, str, count);
+	buf[count] = 0;
+	nf_call(stderr_id, phys);
+}
+
+static void nfcon_write(struct console *con, const char *str,
+			unsigned int count)
+{
+	nfputs(str, count);
+}
+
+static struct tty_driver *nfcon_device(struct console *con, int *index)
+{
+	*index = 0;
+	return nfcon_tty_driver;
+}
+
+static struct console nf_console = {
+	.name	= "nfcon",
+	.write	= nfcon_write,
+	.device	= nfcon_device,
+	.flags	= CON_PRINTBUFFER,
+	.index	= -1,
+};
+
+
+static int nfcon_tty_open(struct tty_struct *tty, struct file *filp)
+{
+	return 0;
+}
+
+static void nfcon_tty_close(struct tty_struct *tty, struct file *filp)
+{
+}
+
+static ssize_t nfcon_tty_write(struct tty_struct *tty, const u8 *buf,
+			       size_t count)
+{
+	nfputs(buf, count);
+	return count;
+}
+
+static int nfcon_tty_put_char(struct tty_struct *tty, u8 ch)
+{
+	u8 temp[2] = { ch, 0 };
+
+	nf_call(stderr_id, virt_to_phys(temp));
+	return 1;
+}
+
+static unsigned int nfcon_tty_write_room(struct tty_struct *tty)
+{
+	return 64;
+}
+
+static const struct tty_operations nfcon_tty_ops = {
+	.open		= nfcon_tty_open,
+	.close		= nfcon_tty_close,
+	.write		= nfcon_tty_write,
+	.put_char	= nfcon_tty_put_char,
+	.write_room	= nfcon_tty_write_room,
+};
+
+#ifndef MODULE
+
+static int __init nf_debug_setup(char *arg)
+{
+	if (strcmp(arg, "nfcon"))
+		return 0;
+
+	stderr_id = nf_get_id("NF_STDERR");
+	if (stderr_id) {
+		/*
+		 * The console will be enabled when debug=nfcon is specified
+		 * as a kernel parameter. Since this is a non-standard way
+		 * of enabling consoles, it must be explicitly enabled.
+		 */
+		nf_console.flags |= CON_ENABLED;
+		register_console(&nf_console);
+	}
+
+	return 0;
+}
+
+early_param("debug", nf_debug_setup);
+
+#endif /* !MODULE */
+
+static int __init nfcon_init(void)
+{
+	struct tty_driver *driver;
+	int res;
+
+	stderr_id = nf_get_id("NF_STDERR");
+	if (!stderr_id)
+		return -ENODEV;
+
+	driver = tty_alloc_driver(1, TTY_DRIVER_REAL_RAW);
+	if (IS_ERR(driver))
+		return PTR_ERR(driver);
+
+	tty_port_init(&nfcon_tty_port);
+
+	driver->driver_name = "nfcon";
+	driver->name = "nfcon";
+	driver->type = TTY_DRIVER_TYPE_SYSTEM;
+	driver->subtype = SYSTEM_TYPE_TTY;
+	driver->init_termios = tty_std_termios;
+
+	tty_set_operations(driver, &nfcon_tty_ops);
+	tty_port_link_device(&nfcon_tty_port, driver, 0);
+	res = tty_register_driver(driver);
+	if (res) {
+		pr_err("failed to register nfcon tty driver\n");
+		tty_driver_kref_put(driver);
+		tty_port_destroy(&nfcon_tty_port);
+		return res;
+	}
+
+	nfcon_tty_driver = driver;
+
+	if (!console_is_registered(&nf_console))
+		register_console(&nf_console);
+
+	return 0;
+}
+
+static void __exit nfcon_exit(void)
+{
+	unregister_console(&nf_console);
+	tty_unregister_driver(nfcon_tty_driver);
+	tty_driver_kref_put(nfcon_tty_driver);
+	tty_port_destroy(&nfcon_tty_port);
+}
+
+module_init(nfcon_init);
+module_exit(nfcon_exit);
+
+MODULE_DESCRIPTION("Atari NatFeat console driver");
+MODULE_LICENSE("GPL");