From 78cdaf3f4257ab10a6cec308ed774e7c7f7e5f72 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 10 Jun 2022 18:01:31 +0100 Subject: arm64: Add kasan_hw_tags_enable() prototype to silence sparse This function is only called from assembly, no need for a prototype declaration in a header file. In addition, add #ifdef around the function since it is only used when CONFIG_KASAN_HW_TAGS. Signed-off-by: Catalin Marinas Reported-by: kernel test robot --- arch/arm64/kernel/mte.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm64') diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c index 57b30bcf9f21..f6b00743c399 100644 --- a/arch/arm64/kernel/mte.c +++ b/arch/arm64/kernel/mte.c @@ -244,6 +244,11 @@ static void mte_update_gcr_excl(struct task_struct *task) SYS_GCR_EL1); } +#ifdef CONFIG_KASAN_HW_TAGS +/* Only called from assembly, silence sparse */ +void __init kasan_hw_tags_enable(struct alt_instr *alt, __le32 *origptr, + __le32 *updptr, int nr_inst); + void __init kasan_hw_tags_enable(struct alt_instr *alt, __le32 *origptr, __le32 *updptr, int nr_inst) { @@ -252,6 +257,7 @@ void __init kasan_hw_tags_enable(struct alt_instr *alt, __le32 *origptr, if (kasan_hw_tags_enabled()) *updptr = cpu_to_le32(aarch64_insn_gen_nop()); } +#endif void mte_thread_init_user(void) { -- cgit v1.2.3