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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/m68k/mm/init.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/m68k/mm/init.c')
-rw-r--r--arch/m68k/mm/init.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
new file mode 100644
index 000000000..3b88c0dd1
--- /dev/null
+++ b/arch/m68k/mm/init.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/arch/m68k/mm/init.c
+ *
+ * Copyright (C) 1995 Hamish Macdonald
+ *
+ * Contains common initialization routines, specific init code moved
+ * to motorola.c and sun3mmu.c
+ */
+
+#include <linux/module.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/memblock.h>
+#include <linux/gfp.h>
+
+#include <asm/setup.h>
+#include <linux/uaccess.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+#include <asm/traps.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+#ifdef CONFIG_ATARI
+#include <asm/atari_stram.h>
+#endif
+#include <asm/sections.h>
+#include <asm/tlb.h>
+
+void __init arch_zone_limits_init(unsigned long *max_zone_pfns)
+{
+ max_zone_pfns[ZONE_DMA] = PFN_DOWN(memblock_end_of_DRAM());
+}
+
+#ifdef CONFIG_MMU
+
+int m68k_virt_to_node_shift;
+
+void __init m68k_setup_node(int node)
+{
+ node_set_online(node);
+}
+
+#else /* CONFIG_MMU */
+
+/*
+ * paging_init() continues the virtual memory environment setup which
+ * was begun by the code in arch/head.S.
+ * The parameters are pointers to where to stick the starting and ending
+ * addresses of available kernel virtual memory.
+ */
+void __init paging_init(void)
+{
+ /*
+ * Make sure start_mem is page aligned, otherwise bootmem and
+ * page_alloc get different views of the world.
+ */
+ unsigned long end_mem = memory_end & PAGE_MASK;
+
+ high_memory = (void *) end_mem;
+}
+
+#endif /* CONFIG_MMU */
+
+void free_initmem(void)
+{
+#ifndef CONFIG_MMU_SUN3
+ free_initmem_default(-1);
+#endif /* CONFIG_MMU_SUN3 */
+}
+
+#if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
+#define VECTORS &vectors[0]
+#else
+#define VECTORS _ramvec
+#endif
+
+static inline void init_pointer_tables(void)
+{
+#if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)
+ int i, j;
+
+ /* insert pointer tables allocated so far into the tablelist */
+ init_pointer_table(kernel_pg_dir, TABLE_PGD);
+ for (i = 0; i < PTRS_PER_PGD; i++) {
+ pud_t *pud = (pud_t *)&kernel_pg_dir[i];
+ pmd_t *pmd_dir;
+
+ if (!pud_present(*pud))
+ continue;
+
+ pmd_dir = (pmd_t *)pgd_page_vaddr(kernel_pg_dir[i]);
+ init_pointer_table(pmd_dir, TABLE_PMD);
+
+ for (j = 0; j < PTRS_PER_PMD; j++) {
+ pmd_t *pmd = &pmd_dir[j];
+ pte_t *pte_dir;
+
+ if (!pmd_present(*pmd))
+ continue;
+
+ pte_dir = (pte_t *)pmd_page_vaddr(*pmd);
+ init_pointer_table(pte_dir, TABLE_PTE);
+ }
+ }
+#endif
+}
+
+void __init mem_init(void)
+{
+ init_pointer_tables();
+}