linux-kernel - Re: [PATCH 2/2] x86/virt/tdx: Fix sparse warnings from using 0 for NULL

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Message-ID: <ded37069ad3ce198d29ed1e1f5b75ef12b0d66ec.camel@intel.com>
Date: Wed, 29 Oct 2025 21:09:13 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>
CC: "seanjc@...gle.com" <seanjc@...gle.com>, "bp@...en8.de" <bp@...en8.de>,
	"kas@...nel.org" <kas@...nel.org>, "hpa@...or.com" <hpa@...or.com>,
	"mingo@...hat.com" <mingo@...hat.com>, "tglx@...utronix.de"
	<tglx@...utronix.de>, "x86@...nel.org" <x86@...nel.org>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>, "pbonzini@...hat.com"
	<pbonzini@...hat.com>, "Li, Xiaoyao" <xiaoyao.li@...el.com>
Subject: Re: [PATCH 2/2] x86/virt/tdx: Fix sparse warnings from using 0 for
 NULL

On Wed, 2025-10-29 at 12:48 -0700, Dave Hansen wrote:
> From: Dave Hansen <dave.hansen@...ux.intel.com>
> 
> sparse moans:
> 
> 	... arch/x86/kvm/vmx/tdx.c:859:38: warning: Using plain integer as NULL pointer
> 
> for several TDX pointer initializations. While I love a good ptr=0
> now and then, it's good to have quiet sparse builds.
> 
> Fix the sites up.
> 
If we want it:

Fixes: a50f673f25e0 ("KVM: TDX: Do TDX specific vcpu initialization")
Fixes: 8d032b683c29 ("KVM: TDX: create/destroy VM structure")