From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions 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 --- arch/powerpc/boot/page.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 arch/powerpc/boot/page.h (limited to 'arch/powerpc/boot/page.h') diff --git a/arch/powerpc/boot/page.h b/arch/powerpc/boot/page.h new file mode 100644 index 000000000..e44a31197 --- /dev/null +++ b/arch/powerpc/boot/page.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef _PPC_BOOT_PAGE_H +#define _PPC_BOOT_PAGE_H +/* + * Copyright (C) 2001 PPC64 Team, IBM Corp + */ + +#ifdef __ASSEMBLER__ +#define ASM_CONST(x) x +#else +#define __ASM_CONST(x) x##UL +#define ASM_CONST(x) __ASM_CONST(x) +#endif + +/* PAGE_SHIFT determines the page size */ +#define PAGE_SHIFT 12 +#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +/* align addr on a size boundary - adjust address up/down if needed */ +#define _ALIGN_UP(addr, size) (((addr)+((size)-1))&(~((typeof(addr))(size)-1))) +#define _ALIGN_DOWN(addr, size) ((addr)&(~((typeof(addr))(size)-1))) + +/* align addr on a size boundary - adjust address up if needed */ +#define _ALIGN(addr,size) _ALIGN_UP(addr,size) + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE) + +#endif /* _PPC_BOOT_PAGE_H */ -- cgit v1.3.1