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, 98 insertions, 0 deletions

diff --git a/arch/mips/bcm63xx/nvram.c b/arch/mips/bcm63xx/nvram.c
new file mode 100644
index 000000000..05757aed0
--- /dev/null
+++ b/arch/mips/bcm63xx/nvram.c
@@ -0,0 +1,98 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ * Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
+ * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
+ */
+
+#define pr_fmt(fmt) "bcm63xx_nvram: " fmt
+
+#include <linux/bcm963xx_nvram.h>
+#include <linux/init.h>
+#include <linux/crc32.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/if_ether.h>
+
+#include <bcm63xx_nvram.h>
+
+#define BCM63XX_DEFAULT_PSI_SIZE	64
+
+static struct bcm963xx_nvram nvram;
+static int mac_addr_used;
+
+void __init bcm63xx_nvram_init(void *addr)
+{
+	u32 crc, expected_crc;
+	u8 hcs_mac_addr[ETH_ALEN] = { 0x00, 0x10, 0x18, 0xff, 0xff, 0xff };
+
+	/* extract nvram data */
+	memcpy(&nvram, addr, BCM963XX_NVRAM_V5_SIZE);
+
+	/* check checksum before using data */
+	if (bcm963xx_nvram_checksum(&nvram, &expected_crc, &crc))
+		pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n",
+			expected_crc, crc);
+
+	/* Cable modems have a different NVRAM which is embedded in the eCos
+	 * firmware and not easily extractible, give at least a MAC address
+	 * pool.
+	 */
+	if (BCMCPU_IS_3368()) {
+		memcpy(nvram.mac_addr_base, hcs_mac_addr, ETH_ALEN);
+		nvram.mac_addr_count = 2;
+	}
+}
+
+u8 *bcm63xx_nvram_get_name(void)
+{
+	return nvram.name;
+}
+EXPORT_SYMBOL(bcm63xx_nvram_get_name);
+
+int bcm63xx_nvram_get_mac_address(u8 *mac)
+{
+	u8 *oui;
+	int count;
+
+	if (mac_addr_used >= nvram.mac_addr_count) {
+		pr_err("not enough mac addresses\n");
+		return -ENODEV;
+	}
+
+	memcpy(mac, nvram.mac_addr_base, ETH_ALEN);
+	oui = mac + ETH_ALEN/2 - 1;
+	count = mac_addr_used;
+
+	while (count--) {
+		u8 *p = mac + ETH_ALEN - 1;
+
+		do {
+			(*p)++;
+			if (*p != 0)
+				break;
+			p--;
+		} while (p != oui);
+
+		if (p == oui) {
+			pr_err("unable to fetch mac address\n");
+			return -ENODEV;
+		}
+	}
+
+	mac_addr_used++;
+	return 0;
+}
+EXPORT_SYMBOL(bcm63xx_nvram_get_mac_address);
+
+int bcm63xx_nvram_get_psi_size(void)
+{
+	if (nvram.psi_size > 0)
+		return nvram.psi_size;
+
+	return BCM63XX_DEFAULT_PSI_SIZE;
+}
+EXPORT_SYMBOL(bcm63xx_nvram_get_psi_size);