From 1e55b44d9ecd42dee7106ce635ffd855183f5221 Mon Sep 17 00:00:00 2001 From: Usama Arif Date: Fri, 4 Nov 2022 06:16:59 +0000 Subject: [PATCH] arm64: paravirt: remove conduit check in has_pv_steal_clock arm_smccc_1_1_invoke() which is called later on in the function will return failure if there's no conduit (or pre-SMCCC 1.1), hence the check is unnecessary. Suggested-by: Steven Price Signed-off-by: Usama Arif Reviewed-by: Steven Price Link: https://lore.kernel.org/r/20221104061659.4116508-1-usama.arif@bytedance.com Signed-off-by: Will Deacon --- arch/arm64/kernel/paravirt.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/arm64/kernel/paravirt.c b/arch/arm64/kernel/paravirt.c index 57c7c211f8c71..aa718d6a9274a 100644 --- a/arch/arm64/kernel/paravirt.c +++ b/arch/arm64/kernel/paravirt.c @@ -141,10 +141,6 @@ static bool __init has_pv_steal_clock(void) { struct arm_smccc_res res; - /* To detect the presence of PV time support we require SMCCC 1.1+ */ - if (arm_smccc_1_1_get_conduit() == SMCCC_CONDUIT_NONE) - return false; - arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, ARM_SMCCC_HV_PV_TIME_FEATURES, &res); -- 2.30.2