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| author | Catalin Marinas <catalin.marinas@arm.com> | 2022-06-10 19:01:31 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2022-06-10 19:04:05 +0200 |
| commit | 78cdaf3f4257ab10a6cec308ed774e7c7f7e5f72 (patch) | |
| tree | 63d77e017267d2dba43cb6f2c5c6d97490e78e08 /arch/arm64/kernel/mte.c | |
| parent | arm64/sme: Fix EFI save/restore (diff) | |
| download | linux-78cdaf3f4257ab10a6cec308ed774e7c7f7e5f72.tar.xz linux-78cdaf3f4257ab10a6cec308ed774e7c7f7e5f72.zip | |
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 <catalin.marinas@arm.com>
Reported-by: kernel test robot <lkp@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/arm64/kernel/mte.c | 6 |
1 files changed, 6 insertions, 0 deletions
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) { |