Now that fpstate_init() cannot fail the error return of fx_init()
has lost its purpose. Eliminate the error return and propagate this
change to all callers.

Reviewed-by: Borislav Petkov <b...@alien8.de>
Cc: Andy Lutomirski <l...@amacapital.net>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: Fenghua Yu <fenghua...@intel.com>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Oleg Nesterov <o...@redhat.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
 arch/x86/include/asm/kvm_host.h |  2 --
 arch/x86/kvm/x86.c              | 14 +++-----------
 2 files changed, 3 insertions(+), 13 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index dea2e7e962e3..c29e61a8d6d4 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -999,8 +999,6 @@ void kvm_pic_clear_all(struct kvm_pic *pic, int 
irq_source_id);
 
 void kvm_inject_nmi(struct kvm_vcpu *vcpu);
 
-int fx_init(struct kvm_vcpu *vcpu);
-
 void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
                       const u8 *new, int bytes);
 int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 74b53c314da0..92a8490cc69d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7004,10 +7004,8 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, 
struct kvm_fpu *fpu)
        return 0;
 }
 
-int fx_init(struct kvm_vcpu *vcpu)
+static void fx_init(struct kvm_vcpu *vcpu)
 {
-       int err;
-
        fpstate_init(&vcpu->arch.guest_fpu);
        if (cpu_has_xsaves)
                vcpu->arch.guest_fpu.state.xsave.header.xcomp_bv =
@@ -7019,10 +7017,7 @@ int fx_init(struct kvm_vcpu *vcpu)
        vcpu->arch.xcr0 = XSTATE_FP;
 
        vcpu->arch.cr0 |= X86_CR0_ET;
-
-       return 0;
 }
-EXPORT_SYMBOL_GPL(fx_init);
 
 void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
 {
@@ -7341,9 +7336,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
                goto fail_free_mce_banks;
        }
 
-       r = fx_init(vcpu);
-       if (r)
-               goto fail_free_wbinvd_dirty_mask;
+       fx_init(vcpu);
 
        vcpu->arch.ia32_tsc_adjust_msr = 0x0;
        vcpu->arch.pv_time_enabled = false;
@@ -7357,8 +7350,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
        kvm_pmu_init(vcpu);
 
        return 0;
-fail_free_wbinvd_dirty_mask:
-       free_cpumask_var(vcpu->arch.wbinvd_dirty_mask);
+
 fail_free_mce_banks:
        kfree(vcpu->arch.mce_banks);
 fail_free_lapic:
-- 
2.1.0

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