Commit 78cdaf3f authored by Catalin Marinas's avatar Catalin Marinas
Browse files

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: default avatarCatalin Marinas <catalin.marinas@arm.com>
Reported-by: default avatarkernel test robot <lkp@intel.com>
parent 2e990e63

arch/arm64/kernel/mte.c

+6 −0
Original line number Diff line number Diff line
@@ -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)

{