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authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /arch/mips/ralink/of.c
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
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>
Diffstat (limited to 'arch/mips/ralink/of.c')
-rw-r--r--arch/mips/ralink/of.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
new file mode 100644
index 000000000..7f90068c6
--- /dev/null
+++ b/arch/mips/ralink/of.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2013 John Crispin <john@phrozen.org>
+ */
+
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/sizes.h>
+#include <linux/of_fdt.h>
+#include <linux/kernel.h>
+#include <linux/memblock.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <asm/reboot.h>
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+#include <asm/prom.h>
+#include <asm/mach-ralink/ralink_regs.h>
+
+#include "common.h"
+
+__iomem void *rt_sysc_membase;
+__iomem void *rt_memc_membase;
+EXPORT_SYMBOL_GPL(rt_sysc_membase);
+
+static const struct of_device_id mtmips_memc_match[] = {
+ { .compatible = "mediatek,mt7621-memc" },
+ { .compatible = "ralink,mt7620a-memc" },
+ { .compatible = "ralink,rt2880-memc" },
+ { .compatible = "ralink,rt3050-memc" },
+ { .compatible = "ralink,rt3883-memc" },
+ {}
+};
+
+static const struct of_device_id mtmips_sysc_match[] = {
+ { .compatible = "mediatek,mt7621-sysc" },
+ { .compatible = "ralink,mt7620-sysc" },
+ { .compatible = "ralink,mt7628-sysc" },
+ { .compatible = "ralink,mt7688-sysc" },
+ { .compatible = "ralink,rt2880-sysc" },
+ { .compatible = "ralink,rt3050-sysc" },
+ { .compatible = "ralink,rt3052-sysc" },
+ { .compatible = "ralink,rt3352-sysc" },
+ { .compatible = "ralink,rt3883-sysc" },
+ { .compatible = "ralink,rt5350-sysc" },
+ {}
+};
+
+static __iomem void *
+mtmips_of_remap_node(const struct of_device_id *match, const char *type)
+{
+ struct resource res;
+ struct device_node *np;
+
+ np = of_find_matching_node(NULL, match);
+ if (!np)
+ panic("Failed to find %s controller node", type);
+
+ if (of_address_to_resource(np, 0, &res))
+ panic("Failed to get resource for %s node", np->name);
+
+ if (!request_mem_region(res.start,
+ resource_size(&res),
+ res.name))
+ panic("Failed to request resources for %s node", np->name);
+
+ of_node_put(np);
+
+ return ioremap(res.start, resource_size(&res));
+}
+
+void __init ralink_of_remap(void)
+{
+ rt_sysc_membase = mtmips_of_remap_node(mtmips_sysc_match, "system");
+ rt_memc_membase = mtmips_of_remap_node(mtmips_memc_match, "memory");
+
+ if (!rt_sysc_membase || !rt_memc_membase)
+ panic("Failed to remap core resources");
+}
+
+void __init plat_mem_setup(void)
+{
+ void *dtb;
+
+ set_io_port_base(KSEG1);
+
+ /*
+ * Load the builtin devicetree. This causes the chosen node to be
+ * parsed resulting in our memory appearing.
+ */
+ dtb = get_fdt();
+ __dt_setup_arch(dtb);
+
+ if (early_init_dt_scan_memory())
+ return;
+
+ if (soc_info.mem_detect)
+ soc_info.mem_detect();
+ else if (soc_info.mem_size)
+ memblock_add(soc_info.mem_base, soc_info.mem_size * SZ_1M);
+ else
+ detect_memory_region(soc_info.mem_base,
+ soc_info.mem_size_min * SZ_1M,
+ soc_info.mem_size_max * SZ_1M);
+}
+
+static int __init plat_of_setup(void)
+{
+ __dt_register_buses(soc_info.compatible, "palmbus");
+
+ return 0;
+}
+
+arch_initcall(plat_of_setup);