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authorThorsten Blum <[email protected]>2024-08-14 22:33:46 +0200
committerSean Christopherson <[email protected]>2024-08-22 11:25:24 -0700
commit1448d4a935abb89942d0af7864480db349433079 (patch)
treea8e805b006d34f2c63e5eecb59902ebc0fced86a
parent47ac09b91befbb6a235ab620c32af719f8208399 (diff)
KVM: x86: Optimize local variable in start_sw_tscdeadline()
Change the data type of the local variable this_tsc_khz to u32 because virtual_tsc_khz is also declared as u32. Since do_div() casts the divisor to u32 anyway, changing the data type of this_tsc_khz to u32 also removes the following Coccinelle/coccicheck warning reported by do_div.cocci: WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead Signed-off-by: Thorsten Blum <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Sean Christopherson <[email protected]>
-rw-r--r--arch/x86/kvm/lapic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 5bb481aefcbc..d77cd3b87e85 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1944,7 +1944,7 @@ static void start_sw_tscdeadline(struct kvm_lapic *apic)
u64 ns = 0;
ktime_t expire;
struct kvm_vcpu *vcpu = apic->vcpu;
- unsigned long this_tsc_khz = vcpu->arch.virtual_tsc_khz;
+ u32 this_tsc_khz = vcpu->arch.virtual_tsc_khz;
unsigned long flags;
ktime_t now;