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, 145 insertions, 0 deletions

diff --git a/arch/arm/mach-omap1/sram-init.c b/arch/arm/mach-omap1/sram-init.c
new file mode 100644
index 000000000..736a72a2b
--- /dev/null
+++ b/arch/arm/mach-omap1/sram-init.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * OMAP SRAM detection and management
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Written by Tony Lindgren <tony@atomide.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/set_memory.h>
+
+#include <asm/fncpy.h>
+#include <asm/tlb.h>
+#include <asm/cacheflush.h>
+
+#include <asm/mach/map.h>
+
+#include "soc.h"
+#include "sram.h"
+
+#define OMAP1_SRAM_PA		0x20000000
+#define SRAM_BOOTLOADER_SZ	0x80
+#define ROUND_DOWN(value, boundary)	((value) & (~((boundary) - 1)))
+
+static void __iomem *omap_sram_base;
+static unsigned long omap_sram_start;
+static unsigned long omap_sram_skip;
+static unsigned long omap_sram_size;
+static void __iomem *omap_sram_ceil;
+
+/*
+ * Memory allocator for SRAM: calculates the new ceiling address
+ * for pushing a function using the fncpy API.
+ *
+ * Note that fncpy requires the returned address to be aligned
+ * to an 8-byte boundary.
+ */
+static void *omap_sram_push_address(unsigned long size)
+{
+	unsigned long available, new_ceil = (unsigned long)omap_sram_ceil;
+
+	available = omap_sram_ceil - (omap_sram_base + omap_sram_skip);
+
+	if (size > available) {
+		pr_err("Not enough space in SRAM\n");
+		return NULL;
+	}
+
+	new_ceil -= size;
+	new_ceil = ROUND_DOWN(new_ceil, FNCPY_ALIGN);
+	omap_sram_ceil = IOMEM(new_ceil);
+
+	return (void __force *)omap_sram_ceil;
+}
+
+void *omap_sram_push(void *funcp, unsigned long size)
+{
+	void *sram;
+	unsigned long base;
+	int pages;
+	void *dst = NULL;
+
+	sram = omap_sram_push_address(size);
+	if (!sram)
+		return NULL;
+
+	base = (unsigned long)sram & PAGE_MASK;
+	pages = PAGE_ALIGN(size) / PAGE_SIZE;
+
+	set_memory_rw(base, pages);
+
+	dst = fncpy(sram, funcp, size);
+
+	set_memory_rox(base, pages);
+
+	return dst;
+}
+
+/*
+ * The amount of SRAM depends on the core type.
+ * Note that we cannot try to test for SRAM here because writes
+ * to secure SRAM will hang the system. Also the SRAM is not
+ * yet mapped at this point.
+ * Note that we cannot use ioremap for SRAM, as clock init needs SRAM early.
+ */
+static void __init omap_detect_and_map_sram(void)
+{
+	unsigned long base;
+	int pages;
+
+	omap_sram_skip = SRAM_BOOTLOADER_SZ;
+	omap_sram_start = OMAP1_SRAM_PA;
+
+	if (cpu_is_omap15xx())
+		omap_sram_size = 0x30000;	/* 192K */
+	else if (cpu_is_omap1610() || cpu_is_omap1611() ||
+			cpu_is_omap1621() || cpu_is_omap1710())
+		omap_sram_size = 0x4000;	/* 16K */
+	else {
+		pr_err("Could not detect SRAM size\n");
+		omap_sram_size = 0x4000;
+	}
+
+	omap_sram_start = ROUND_DOWN(omap_sram_start, PAGE_SIZE);
+	omap_sram_base = __arm_ioremap_exec(omap_sram_start, omap_sram_size, 1);
+	if (!omap_sram_base) {
+		pr_err("SRAM: Could not map\n");
+		return;
+	}
+
+	omap_sram_ceil = omap_sram_base + omap_sram_size;
+
+	/*
+	 * Looks like we need to preserve some bootloader code at the
+	 * beginning of SRAM for jumping to flash for reboot to work...
+	 */
+	memset_io(omap_sram_base + omap_sram_skip, 0,
+		  omap_sram_size - omap_sram_skip);
+
+	base = (unsigned long)omap_sram_base;
+	pages = PAGE_ALIGN(omap_sram_size) / PAGE_SIZE;
+
+	set_memory_rox(base, pages);
+}
+
+static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl);
+
+void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
+{
+	BUG_ON(!_omap_sram_reprogram_clock);
+	_omap_sram_reprogram_clock(dpllctl, ckctl);
+}
+
+int __init omap1_sram_init(void)
+{
+	omap_detect_and_map_sram();
+	_omap_sram_reprogram_clock =
+			omap_sram_push(omap1_sram_reprogram_clock,
+					omap1_sram_reprogram_clock_sz);
+
+	return 0;
+}