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, 99 insertions, 0 deletions

diff --git a/arch/powerpc/boot/pq2.c b/arch/powerpc/boot/pq2.c
new file mode 100644
index 000000000..de27f1c07
--- /dev/null
+++ b/arch/powerpc/boot/pq2.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * PowerQUICC II support functions
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ */
+
+#include "ops.h"
+#include "types.h"
+#include "fsl-soc.h"
+#include "pq2.h"
+#include "stdio.h"
+#include "io.h"
+
+#define PQ2_SCCR (0x10c80/4) /* System Clock Configuration Register */
+#define PQ2_SCMR (0x10c88/4) /* System Clock Mode Register */
+
+static int pq2_corecnf_map[] = {
+	3, 2, 2, 2, 4, 4, 5, 9, 6, 11, 8, 10, 3, 12, 7, -1,
+	6, 5, 13, 2, 14, 4, 15, 9, 0, 11, 8, 10, 16, 12, 7, -1
+};
+
+/* Get various clocks from crystal frequency.
+ * Returns zero on failure and non-zero on success.
+ */
+int pq2_get_clocks(u32 crystal, u32 *sysfreq, u32 *corefreq,
+                   u32 *timebase, u32 *brgfreq)
+{
+	u32 *immr;
+	u32 sccr, scmr, mainclk, busclk;
+	int corecnf, busdf, plldf, pllmf, dfbrg;
+
+	immr = fsl_get_immr();
+	if (!immr) {
+		printf("pq2_get_clocks: Couldn't get IMMR base.\r\n");
+		return 0;
+	}
+
+	sccr = in_be32(&immr[PQ2_SCCR]);
+	scmr = in_be32(&immr[PQ2_SCMR]);
+
+	dfbrg = sccr & 3;
+	corecnf = (scmr >> 24) & 0x1f;
+	busdf = (scmr >> 20) & 0xf;
+	plldf = (scmr >> 12) & 1;
+	pllmf = scmr & 0xfff;
+
+	mainclk = crystal * (pllmf + 1) / (plldf + 1);
+	busclk = mainclk / (busdf + 1);
+
+	if (sysfreq)
+		*sysfreq = mainclk / 2;
+	if (timebase)
+		*timebase = busclk / 4;
+	if (brgfreq)
+		*brgfreq = mainclk / (1 << ((dfbrg + 1) * 2));
+
+	if (corefreq) {
+		int coremult = pq2_corecnf_map[corecnf];
+
+		if (coremult < 0)
+			*corefreq = mainclk / 2;
+		else if (coremult == 0)
+			return 0;
+		else
+			*corefreq = busclk * coremult / 2;
+	}
+
+	return 1;
+}
+
+/* Set common device tree fields based on the given clock frequencies. */
+void pq2_set_clocks(u32 sysfreq, u32 corefreq, u32 timebase, u32 brgfreq)
+{
+	void *node;
+
+	dt_fixup_cpu_clocks(corefreq, timebase, sysfreq);
+
+	node = finddevice("/soc/cpm");
+	if (node)
+		setprop(node, "clock-frequency", &sysfreq, 4);
+
+	node = finddevice("/soc/cpm/brg");
+	if (node)
+		setprop(node, "clock-frequency", &brgfreq, 4);
+}
+
+int pq2_fixup_clocks(u32 crystal)
+{
+	u32 sysfreq, corefreq, timebase, brgfreq;
+
+	if (!pq2_get_clocks(crystal, &sysfreq, &corefreq, &timebase, &brgfreq))
+		return 0;
+
+	pq2_set_clocks(sysfreq, corefreq, timebase, brgfreq);
+	return 1;
+}