arm64: Add per-cpu infrastructure to call ARCH_WORKAROUND_2

[mirror_ubuntu-bionic-kernel.git] / arch / arm64 / kernel / cpu_errata.c

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 44798a700f6cb0bde4ecc5f11fc2b906c59497d3..62530ba60497e465299ebf9e91272c044aa0a1ee 100644 (file)
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -229,6 +229,8 @@ static int qcom_enable_link_stack_sanitization(void *data)
 #endif /* CONFIG_HARDEN_BRANCH_PREDICTOR */
 
 #ifdef CONFIG_ARM64_SSBD
+DEFINE_PER_CPU_READ_MOSTLY(u64, arm64_ssbd_callback_required);
+
 void __init arm64_update_smccc_conduit(struct alt_instr *alt,
                                       __le32 *origptr, __le32 *updptr,
                                       int nr_inst)