[RFC PATCH 02/10] kvm: x86: make kvm_{load|put}_guest_fpu() static

[Sebastian Andrzej Siewior]

The functions
        kvm_load_guest_fpu()
        kvm_put_guest_fpu()

are only used locally, make them static. This requires also that both
functions are moved because they are used before their implementation.
Those functions were exported (via EXPORT_SYMBOL) before commit
e5bb40251a920 ("KVM: Drop kvm_{load,put}_guest_fpu() exports").

Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
---
 arch/x86/kvm/x86.c       | 46 ++++++++++++++++++++--------------------
 include/linux/kvm_host.h |  2 --
 2 files changed, 23 insertions(+), 25 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 542f6315444d7..2d8b3c257e769 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7829,6 +7829,29 @@ static int complete_emulated_mmio(struct kvm_vcpu *vcpu)
        return 0;
 }
 
+/* Swap (qemu) user FPU context for the guest FPU context. */
+static void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
+{
+       preempt_disable();
+       copy_fpregs_to_fpstate(&vcpu->arch.user_fpu);
+       /* PKRU is separately restored in kvm_x86_ops->run.  */
+       __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state,
+                               ~XFEATURE_MASK_PKRU);
+       preempt_enable();
+       trace_kvm_fpu(1);
+}
+
+/* When vcpu_run ends, restore user space FPU context. */
+static void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
+{
+       preempt_disable();
+       copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu);
+       copy_kernel_to_fpregs(&vcpu->arch.user_fpu.state);
+       preempt_enable();
+       ++vcpu->stat.fpu_reload;
+       trace_kvm_fpu(0);
+}
+
 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 {
        int r;
@@ -8406,29 +8429,6 @@ static void fx_init(struct kvm_vcpu *vcpu)
        vcpu->arch.cr0 |= X86_CR0_ET;
 }
 
-/* Swap (qemu) user FPU context for the guest FPU context. */
-void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
-{
-       preempt_disable();
-       copy_fpregs_to_fpstate(&vcpu->arch.user_fpu);
-       /* PKRU is separately restored in kvm_x86_ops->run.  */
-       __copy_kernel_to_fpregs(&vcpu->arch.guest_fpu.state,
-                               ~XFEATURE_MASK_PKRU);
-       preempt_enable();
-       trace_kvm_fpu(1);
-}
-
-/* When vcpu_run ends, restore user space FPU context. */
-void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
-{
-       preempt_disable();
-       copy_fpregs_to_fpstate(&vcpu->arch.guest_fpu);
-       copy_kernel_to_fpregs(&vcpu->arch.user_fpu.state);
-       preempt_enable();
-       ++vcpu->stat.fpu_reload;
-       trace_kvm_fpu(0);
-}
-
 void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
 {
        void *wbinvd_dirty_mask = vcpu->arch.wbinvd_dirty_mask;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 0205aee44dedd..c926698040e0d 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -733,8 +733,6 @@ bool kvm_vcpu_wake_up(struct kvm_vcpu *vcpu);
 void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
 int kvm_vcpu_yield_to(struct kvm_vcpu *target);
 void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu, bool usermode_vcpu_not_eligible);
-void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
-void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
 
 void kvm_flush_remote_tlbs(struct kvm *kvm);
 void kvm_reload_remote_mmus(struct kvm *kvm);
-- 
2.19.0