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/arm/mm/cache-nop.S | 52 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 arch/arm/mm/cache-nop.S (limited to 'arch/arm/mm/cache-nop.S') diff --git a/arch/arm/mm/cache-nop.S b/arch/arm/mm/cache-nop.S new file mode 100644 index 000000000..f68dde201 --- /dev/null +++ b/arch/arm/mm/cache-nop.S @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#include +#include +#include +#include + +#include "proc-macros.S" + +/* + * These are all open-coded instead of aliased, to make clear + * what is going on here: all functions are stubbed out. + */ +SYM_TYPED_FUNC_START(nop_flush_icache_all) + ret lr +SYM_FUNC_END(nop_flush_icache_all) + +SYM_TYPED_FUNC_START(nop_flush_kern_cache_all) + ret lr +SYM_FUNC_END(nop_flush_kern_cache_all) + +SYM_TYPED_FUNC_START(nop_flush_user_cache_all) + ret lr +SYM_FUNC_END(nop_flush_user_cache_all) + +SYM_TYPED_FUNC_START(nop_flush_user_cache_range) + ret lr +SYM_FUNC_END(nop_flush_user_cache_range) + +SYM_TYPED_FUNC_START(nop_coherent_kern_range) + ret lr +SYM_FUNC_END(nop_coherent_kern_range) + +SYM_TYPED_FUNC_START(nop_coherent_user_range) + mov r0, 0 + ret lr +SYM_FUNC_END(nop_coherent_user_range) + +SYM_TYPED_FUNC_START(nop_flush_kern_dcache_area) + ret lr +SYM_FUNC_END(nop_flush_kern_dcache_area) + +SYM_TYPED_FUNC_START(nop_dma_flush_range) + ret lr +SYM_FUNC_END(nop_dma_flush_range) + +SYM_TYPED_FUNC_START(nop_dma_map_area) + ret lr +SYM_FUNC_END(nop_dma_map_area) + +SYM_TYPED_FUNC_START(nop_dma_unmap_area) + ret lr +SYM_FUNC_END(nop_dma_unmap_area) -- cgit v1.3.1