Re: [PATCH v8 02/14] KVM: Declare kvm_arch_flush_remote_tlbs() globally

Shaoqin Huang
2023-08-11T03:18:40Z

On 8/9/23 07:13, Raghavendra Rao Ananta wrote:
> There's no reason for the architectures to declare
> kvm_arch_flush_remote_tlbs() in their own headers. Hence to
> avoid this duplication, make the declaration global, leaving
> the architectures to define only __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS
> as needed.
>
> Signed-off-by: Raghavendra Rao Ananta <rananta@google.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
> ---
> arch/mips/include/asm/kvm_host.h | 1 -
> include/linux/kvm_host.h | 2 ++
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
> index 9b0ad8f3bf327..54a85f1d4f2c8 100644
> --- a/arch/mips/include/asm/kvm_host.h
> +++ b/arch/mips/include/asm/kvm_host.h
> @@ -897,6 +897,5 @@ static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
> static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
>
> #define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLBS
> -int kvm_arch_flush_remote_tlbs(struct kvm *kvm);
>
> #endif /* __MIPS_KVM_HOST_H__ */
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index e3f968b38ae97..ade5d4500c2ce 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -1484,6 +1484,8 @@ static inline int kvm_arch_flush_remote_tlbs(struct kvm *kvm)
> {
> return -ENOTSUPP;
> }
> +#else
> +int kvm_arch_flush_remote_tlbs(struct kvm *kvm);
> #endif
>
> #ifdef __KVM_HAVE_ARCH_NONCOHERENT_DMA

--
Shaoqin