From 48ef9e87b407f89f230f804815af7ac2031ec17a Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 26 Jan 2024 16:22:07 +0800 Subject: LoongArch: KVM: Add returns to SIMD stubs The stubs for kvm_own/lsx()/kvm_own_lasx() when CONFIG_CPU_HAS_LSX or CONFIG_CPU_HAS_LASX is not defined should have a return value since they return an int, so add "return -EINVAL;" to the stubs. Fixes the build error: In file included from ../arch/loongarch/include/asm/kvm_csr.h:12, from ../arch/loongarch/kvm/interrupt.c:8: ../arch/loongarch/include/asm/kvm_vcpu.h: In function 'kvm_own_lasx': ../arch/loongarch/include/asm/kvm_vcpu.h:73:39: error: no return statement in function returning non-void [-Werror=return-type] 73 | static inline int kvm_own_lasx(struct kvm_vcpu *vcpu) { } Fixes: db1ecca22edf ("LoongArch: KVM: Add LSX (128bit SIMD) support") Fixes: 118e10cd893d ("LoongArch: KVM: Add LASX (256bit SIMD) support") Signed-off-by: Randy Dunlap Signed-off-by: Huacai Chen --- arch/loongarch/include/asm/kvm_vcpu.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/loongarch/include/asm/kvm_vcpu.h b/arch/loongarch/include/asm/kvm_vcpu.h index e71ceb88f29e..0cb4fdb8a9b5 100644 --- a/arch/loongarch/include/asm/kvm_vcpu.h +++ b/arch/loongarch/include/asm/kvm_vcpu.h @@ -60,7 +60,7 @@ int kvm_own_lsx(struct kvm_vcpu *vcpu); void kvm_save_lsx(struct loongarch_fpu *fpu); void kvm_restore_lsx(struct loongarch_fpu *fpu); #else -static inline int kvm_own_lsx(struct kvm_vcpu *vcpu) { } +static inline int kvm_own_lsx(struct kvm_vcpu *vcpu) { return -EINVAL; } static inline void kvm_save_lsx(struct loongarch_fpu *fpu) { } static inline void kvm_restore_lsx(struct loongarch_fpu *fpu) { } #endif @@ -70,7 +70,7 @@ int kvm_own_lasx(struct kvm_vcpu *vcpu); void kvm_save_lasx(struct loongarch_fpu *fpu); void kvm_restore_lasx(struct loongarch_fpu *fpu); #else -static inline int kvm_own_lasx(struct kvm_vcpu *vcpu) { } +static inline int kvm_own_lasx(struct kvm_vcpu *vcpu) { return -EINVAL; } static inline void kvm_save_lasx(struct loongarch_fpu *fpu) { } static inline void kvm_restore_lasx(struct loongarch_fpu *fpu) { } #endif -- cgit v1.2.3