linux-kernel - Re: [PATCH] KVM: x86: fix warning Using plain integer as NULL pointer

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Message-ID: <ea8cda8a-bda1-c227-6bd2-d8c3bb2f5681@codeaurora.org>
Date:   Sun, 7 Apr 2019 00:47:40 +0530
From:   Mukesh Ojha <mojha@...eaurora.org>
To:     Hariprasad Kelam <hariprasad.kelam@...il.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: x86: fix warning Using plain integer as NULL pointer


On 4/6/2019 3:06 PM, Hariprasad Kelam wrote:
> Changed passing argument as "0 to NULL" which resolves below sparse warning
>
> arch/x86/kvm/x86.c:3096:61: warning: Using plain integer as NULL pointer
>
> Signed-off-by: Hariprasad Kelam <hariprasad.kelam@...il.com>
Reviewed-by: Mukesh Ojha <mojha@...eaurora.org>

Cheers,
-Mukesh

> ---
>   arch/x86/kvm/x86.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 099b851..39034ec 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -3093,7 +3093,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
>   		break;
>   	case KVM_CAP_NESTED_STATE:
>   		r = kvm_x86_ops->get_nested_state ?
> -			kvm_x86_ops->get_nested_state(NULL, 0, 0) : 0;
> +			kvm_x86_ops->get_nested_state(NULL, NULL, 0) : 0;
>   		break;
>   	default:
>   		break;