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, 77 insertions, 0 deletions

diff --git a/drivers/nvmem/qoriq-efuse.c b/drivers/nvmem/qoriq-efuse.c
new file mode 100644
index 000000000..80f514939
--- /dev/null
+++ b/drivers/nvmem/qoriq-efuse.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  Copyright (C) 2023  Westermo Network Technologies AB
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/nvmem-provider.h>
+#include <linux/platform_device.h>
+
+struct qoriq_efuse_priv {
+	void __iomem *base;
+};
+
+static int qoriq_efuse_read(void *context, unsigned int offset, void *val,
+			    size_t bytes)
+{
+	struct qoriq_efuse_priv *priv = context;
+
+	/* .stride = 4 so offset is guaranteed to be aligned */
+	__ioread32_copy(val, priv->base + offset, bytes / 4);
+
+	/* Ignore trailing bytes (there shouldn't be any) */
+
+	return 0;
+}
+
+static int qoriq_efuse_probe(struct platform_device *pdev)
+{
+	struct nvmem_config config = {
+		.dev = &pdev->dev,
+		.read_only = true,
+		.reg_read = qoriq_efuse_read,
+		.stride = sizeof(u32),
+		.word_size = sizeof(u32),
+		.name = "qoriq_efuse_read",
+		.id = NVMEM_DEVID_AUTO,
+		.root_only = true,
+	};
+	struct qoriq_efuse_priv *priv;
+	struct nvmem_device *nvmem;
+	struct resource *res;
+
+	priv = devm_kzalloc(config.dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	config.size = resource_size(res);
+	config.priv = priv;
+	nvmem = devm_nvmem_register(config.dev, &config);
+
+	return PTR_ERR_OR_ZERO(nvmem);
+}
+
+static const struct of_device_id qoriq_efuse_of_match[] = {
+	{ .compatible = "fsl,t1023-sfp", },
+	{/* sentinel */},
+};
+MODULE_DEVICE_TABLE(of, qoriq_efuse_of_match);
+
+static struct platform_driver qoriq_efuse_driver = {
+	.probe = qoriq_efuse_probe,
+	.driver = {
+		.name = "qoriq-efuse",
+		.of_match_table = qoriq_efuse_of_match,
+	},
+};
+module_platform_driver(qoriq_efuse_driver);
+
+MODULE_AUTHOR("Richard Alpe <richard.alpe@bit42.se>");
+MODULE_DESCRIPTION("NXP QorIQ Security Fuse Processor (SFP) Reader");
+MODULE_LICENSE("GPL");