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| author | Usama Arif <usama.arif@bytedance.com> | 2022-11-04 07:16:59 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-11-09 19:11:56 +0100 |
| commit | 1e55b44d9ecd42dee7106ce635ffd855183f5221 (patch) | |
| tree | 1adab652adf67e71be2c7262394c371b963fae3f | |
| parent | arm64: entry: Fix typo (diff) | |
| download | linux-1e55b44d9ecd42dee7106ce635ffd855183f5221.tar.xz linux-1e55b44d9ecd42dee7106ce635ffd855183f5221.zip | |
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 <steven.price@arm.com>
Signed-off-by: Usama Arif <usama.arif@bytedance.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://lore.kernel.org/r/20221104061659.4116508-1-usama.arif@bytedance.com
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/kernel/paravirt.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm64/kernel/paravirt.c b/arch/arm64/kernel/paravirt.c index 57c7c211f8c7..aa718d6a9274 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); |