diff options
| author | Thorsten Blum <thorsten.blum@toblux.com> | 2024-08-14 23:33:46 +0300 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2024-08-22 21:25:24 +0300 |
| commit | 1448d4a935abb89942d0af7864480db349433079 (patch) | |
| tree | a8e805b006d34f2c63e5eecb59902ebc0fced86a | |
| parent | 47ac09b91befbb6a235ab620c32af719f8208399 (diff) | |
| download | linux-1448d4a935abb89942d0af7864480db349433079.tar.xz | |
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 <thorsten.blum@toblux.com>
Link: https://lore.kernel.org/r/20240814203345.2234-2-thorsten.blum@toblux.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/lapic.c | 2 |
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; |