Re: [PATCH 2/4] riscv: kvm: move extern sbi_ext declarations to a header

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On Sun, Aug 14, 2022 at 7:42 PM Conor Dooley <mail@xxxxxxxxxxx> wrote:
>
> From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
>
> Sparse complains about missing statics in the declarations of several
> variables:
> arch/riscv/kvm/vcpu_sbi_replace.c:38:37: warning: symbol 'vcpu_sbi_ext_time' was not declared. Should it be static?
> arch/riscv/kvm/vcpu_sbi_replace.c:73:37: warning: symbol 'vcpu_sbi_ext_ipi' was not declared. Should it be static?
> arch/riscv/kvm/vcpu_sbi_replace.c:126:37: warning: symbol 'vcpu_sbi_ext_rfence' was not declared. Should it be static?
> arch/riscv/kvm/vcpu_sbi_replace.c:170:37: warning: symbol 'vcpu_sbi_ext_srst' was not declared. Should it be static?
> arch/riscv/kvm/vcpu_sbi_base.c:69:37: warning: symbol 'vcpu_sbi_ext_base' was not declared. Should it be static?
> arch/riscv/kvm/vcpu_sbi_base.c:90:37: warning: symbol 'vcpu_sbi_ext_experimental' was not declared. Should it be static?
> arch/riscv/kvm/vcpu_sbi_base.c:96:37: warning: symbol 'vcpu_sbi_ext_vendor' was not declared. Should it be static?
> arch/riscv/kvm/vcpu_sbi_hsm.c:115:37: warning: symbol 'vcpu_sbi_ext_hsm' was not declared. Should it be static?
>
> These variables are however used in vcpu_sbi.c where they are declared
> as extern. Move them to kvm_vcpu_sbi.h which is handily already
> included by the three other files.
>
> Fixes: a046c2d8578c ("RISC-V: KVM: Reorganize SBI code by moving SBI v0.1 to its own file")
> Fixes: 5f862df5585c ("RISC-V: KVM: Add v0.1 replacement SBI extensions defined in v0.2")
> Fixes: 3e1d86569c21 ("RISC-V: KVM: Add SBI HSM extension in KVM")
> Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>

I have queued this fix for 6.0-rc1

Thanks,
Anup

> ---
>  arch/riscv/include/asm/kvm_vcpu_sbi.h | 12 ++++++++++++
>  arch/riscv/kvm/vcpu_sbi.c             | 12 +-----------
>  2 files changed, 13 insertions(+), 11 deletions(-)
>
> diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi.h b/arch/riscv/include/asm/kvm_vcpu_sbi.h
> index 83d6d4d2b1df..26a446a34057 100644
> --- a/arch/riscv/include/asm/kvm_vcpu_sbi.h
> +++ b/arch/riscv/include/asm/kvm_vcpu_sbi.h
> @@ -33,4 +33,16 @@ void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu,
>                                      u32 type, u64 flags);
>  const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext(unsigned long extid);
>
> +#ifdef CONFIG_RISCV_SBI_V01
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01;
> +#endif
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_base;
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_time;
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_ipi;
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_rfence;
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_srst;
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_hsm;
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental;
> +extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor;
> +
>  #endif /* __RISCV_KVM_VCPU_SBI_H__ */
> diff --git a/arch/riscv/kvm/vcpu_sbi.c b/arch/riscv/kvm/vcpu_sbi.c
> index d45e7da3f0d3..f96991d230bf 100644
> --- a/arch/riscv/kvm/vcpu_sbi.c
> +++ b/arch/riscv/kvm/vcpu_sbi.c
> @@ -32,23 +32,13 @@ static int kvm_linux_err_map_sbi(int err)
>         };
>  }
>
> -#ifdef CONFIG_RISCV_SBI_V01
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01;
> -#else
> +#ifndef CONFIG_RISCV_SBI_V01
>  static const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01 = {
>         .extid_start = -1UL,
>         .extid_end = -1UL,
>         .handler = NULL,
>  };
>  #endif
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_base;
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_time;
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_ipi;
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_rfence;
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_srst;
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_hsm;
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental;
> -extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor;
>
>  static const struct kvm_vcpu_sbi_extension *sbi_ext[] = {
>         &vcpu_sbi_ext_v01,
> --
> 2.37.1
>



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