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, 97 insertions, 0 deletions

diff --git a/arch/arm/mach-rpc/time.c b/arch/arm/mach-rpc/time.c
new file mode 100644
index 000000000..9f8edcfe9
--- /dev/null
+++ b/arch/arm/mach-rpc/time.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  linux/arch/arm/common/time-acorn.c
+ *
+ *  Copyright (c) 1996-2000 Russell King.
+ *
+ *  Changelog:
+ *   24-Sep-1996	RMK	Created
+ *   10-Oct-1996	RMK	Brought up to date with arch-sa110eval
+ *   04-Dec-1997	RMK	Updated for new arch/arm/time.c
+ *   13=Jun-2004	DS	Moved to arch/arm/common b/c shared w/CLPS7500
+ */
+#include <linux/clocksource.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <asm/hardware/ioc.h>
+
+#include <asm/mach/time.h>
+
+#define RPC_CLOCK_FREQ 2000000
+#define RPC_LATCH DIV_ROUND_CLOSEST(RPC_CLOCK_FREQ, HZ)
+
+static u32 ioc_time;
+
+static u64 ioc_timer_read(struct clocksource *cs)
+{
+	unsigned int count1, count2, status;
+	unsigned long flags;
+	u32 ticks;
+
+	local_irq_save(flags);
+	ioc_writeb (0, IOC_T0LATCH);
+	barrier ();
+	count1 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
+	barrier ();
+	status = ioc_readb(IOC_IRQREQA);
+	barrier ();
+	ioc_writeb (0, IOC_T0LATCH);
+	barrier ();
+	count2 = ioc_readb(IOC_T0CNTL) | (ioc_readb(IOC_T0CNTH) << 8);
+	ticks = ioc_time + RPC_LATCH - count2;
+	local_irq_restore(flags);
+
+	if (count2 < count1) {
+		/*
+		 * The timer has not reloaded between reading count1 and
+		 * count2, check whether an interrupt was actually pending.
+		 */
+		if (status & (1 << 5))
+			ticks += RPC_LATCH;
+	} else if (count2 > count1) {
+		/*
+		 * The timer has reloaded, so count2 indicates the new
+		 * count since the wrap.  The interrupt would not have
+		 * been processed, so add the missed ticks.
+		 */
+		ticks += RPC_LATCH;
+	}
+
+	return ticks;
+}
+
+static struct clocksource ioctime_clocksource = {
+	.read = ioc_timer_read,
+	.mask = CLOCKSOURCE_MASK(32),
+	.rating = 100,
+};
+
+void __init ioctime_init(void)
+{
+	ioc_writeb(RPC_LATCH & 255, IOC_T0LTCHL);
+	ioc_writeb(RPC_LATCH >> 8, IOC_T0LTCHH);
+	ioc_writeb(0, IOC_T0GO);
+}
+
+static irqreturn_t
+ioc_timer_interrupt(int irq, void *dev_id)
+{
+	ioc_time += RPC_LATCH;
+	legacy_timer_tick(1);
+	return IRQ_HANDLED;
+}
+
+/*
+ * Set up timer interrupt.
+ */
+void __init ioc_timer_init(void)
+{
+	WARN_ON(clocksource_register_hz(&ioctime_clocksource, RPC_CLOCK_FREQ));
+	ioctime_init();
+	if (request_irq(IRQ_TIMER0, ioc_timer_interrupt, 0, "timer", NULL))
+		pr_err("Failed to request irq %d (timer)\n", IRQ_TIMER0);
+}