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, 138 insertions, 0 deletions

diff --git a/drivers/pmdomain/mediatek/airoha-cpu-pmdomain.c b/drivers/pmdomain/mediatek/airoha-cpu-pmdomain.c
new file mode 100644
index 000000000..5efd7a38f
--- /dev/null
+++ b/drivers/pmdomain/mediatek/airoha-cpu-pmdomain.c
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/arm-smccc.h>
+#include <linux/bitfield.h>
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/slab.h>
+
+#define AIROHA_SIP_AVS_HANDLE			0x82000301
+#define AIROHA_AVS_OP_BASE			0xddddddd0
+#define AIROHA_AVS_OP_MASK			GENMASK(1, 0)
+#define AIROHA_AVS_OP_FREQ_DYN_ADJ		(AIROHA_AVS_OP_BASE | \
+						 FIELD_PREP(AIROHA_AVS_OP_MASK, 0x1))
+#define AIROHA_AVS_OP_GET_FREQ			(AIROHA_AVS_OP_BASE | \
+						 FIELD_PREP(AIROHA_AVS_OP_MASK, 0x2))
+
+struct airoha_cpu_pmdomain_priv {
+	struct clk_hw hw;
+	struct generic_pm_domain pd;
+};
+
+static unsigned long airoha_cpu_pmdomain_clk_get(struct clk_hw *hw,
+						 unsigned long parent_rate)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_invoke(AIROHA_SIP_AVS_HANDLE, AIROHA_AVS_OP_GET_FREQ,
+			     0, 0, 0, 0, 0, 0, &res);
+
+	/* SMCCC returns freq in MHz */
+	return (int)(res.a0 * 1000 * 1000);
+}
+
+/* Airoha CPU clk SMCC is always enabled */
+static int airoha_cpu_pmdomain_clk_is_enabled(struct clk_hw *hw)
+{
+	return true;
+}
+
+static const struct clk_ops airoha_cpu_pmdomain_clk_ops = {
+	.recalc_rate = airoha_cpu_pmdomain_clk_get,
+	.is_enabled = airoha_cpu_pmdomain_clk_is_enabled,
+	.determine_rate = clk_determine_rate_noop,
+};
+
+static int airoha_cpu_pmdomain_set_performance_state(struct generic_pm_domain *domain,
+						     unsigned int state)
+{
+	struct arm_smccc_res res;
+
+	arm_smccc_1_1_invoke(AIROHA_SIP_AVS_HANDLE, AIROHA_AVS_OP_FREQ_DYN_ADJ,
+			     0, state, 0, 0, 0, 0, &res);
+
+	/* SMC signal correct apply by unsetting BIT 0 */
+	return res.a0 & BIT(0) ? -EINVAL : 0;
+}
+
+static int airoha_cpu_pmdomain_probe(struct platform_device *pdev)
+{
+	struct airoha_cpu_pmdomain_priv *priv;
+	struct device *dev = &pdev->dev;
+	const struct clk_init_data init = {
+		.name = "cpu",
+		.ops = &airoha_cpu_pmdomain_clk_ops,
+		/* Clock with no set_rate, can't cache */
+		.flags = CLK_GET_RATE_NOCACHE,
+	};
+	struct generic_pm_domain *pd;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	/* Init and register a get-only clk for Cpufreq */
+	priv->hw.init = &init;
+	ret = devm_clk_hw_register(dev, &priv->hw);
+	if (ret)
+		return ret;
+
+	ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get,
+					  &priv->hw);
+	if (ret)
+		return ret;
+
+	/* Init and register a PD for CPU */
+	pd = &priv->pd;
+	pd->name = "cpu_pd";
+	pd->flags = GENPD_FLAG_ALWAYS_ON;
+	pd->set_performance_state = airoha_cpu_pmdomain_set_performance_state;
+
+	ret = pm_genpd_init(pd, NULL, false);
+	if (ret)
+		return ret;
+
+	ret = of_genpd_add_provider_simple(dev->of_node, pd);
+	if (ret)
+		goto err_add_provider;
+
+	platform_set_drvdata(pdev, priv);
+
+	return 0;
+
+err_add_provider:
+	pm_genpd_remove(pd);
+
+	return ret;
+}
+
+static void airoha_cpu_pmdomain_remove(struct platform_device *pdev)
+{
+	struct airoha_cpu_pmdomain_priv *priv = platform_get_drvdata(pdev);
+
+	of_genpd_del_provider(pdev->dev.of_node);
+	pm_genpd_remove(&priv->pd);
+}
+
+static const struct of_device_id airoha_cpu_pmdomain_of_match[] = {
+	{ .compatible = "airoha,en7581-cpufreq" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, airoha_cpu_pmdomain_of_match);
+
+static struct platform_driver airoha_cpu_pmdomain_driver = {
+	.probe = airoha_cpu_pmdomain_probe,
+	.remove = airoha_cpu_pmdomain_remove,
+	.driver = {
+		.name = "airoha-cpu-pmdomain",
+		.of_match_table = airoha_cpu_pmdomain_of_match,
+	},
+};
+module_platform_driver(airoha_cpu_pmdomain_driver);
+
+MODULE_AUTHOR("Christian Marangi <ansuelsmth@gmail.com>");
+MODULE_DESCRIPTION("CPU PM domain driver for Airoha SoCs");
+MODULE_LICENSE("GPL");