linux-kernel - Re: [PATCH v4 02/16] x86/tdx: Add helpers to check return status codes

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Message-ID: <76fc3731177a9be77d35cfadf31712932bd413a3.camel@intel.com>
Date: Mon, 24 Nov 2025 19:31:02 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To: "binbin.wu@...ux.intel.com" <binbin.wu@...ux.intel.com>
CC: "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "linux-coco@...ts.linux.dev"
	<linux-coco@...ts.linux.dev>, "Huang, Kai" <kai.huang@...el.com>, "Li,
 Xiaoyao" <xiaoyao.li@...el.com>, "Hansen, Dave" <dave.hansen@...el.com>,
	"Zhao, Yan Y" <yan.y.zhao@...el.com>, "Wu, Binbin" <binbin.wu@...el.com>,
	"kas@...nel.org" <kas@...nel.org>, "seanjc@...gle.com" <seanjc@...gle.com>,
	"mingo@...hat.com" <mingo@...hat.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "pbonzini@...hat.com" <pbonzini@...hat.com>,
	"Yamahata, Isaku" <isaku.yamahata@...el.com>,
	"kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>, "Annapurve, Vishal"
	<vannapurve@...gle.com>, "Gao, Chao" <chao.gao@...el.com>, "bp@...en8.de"
	<bp@...en8.de>, "x86@...nel.org" <x86@...nel.org>
Subject: Re: [PATCH v4 02/16] x86/tdx: Add helpers to check return status
 codes

On Mon, 2025-11-24 at 16:56 +0800, Binbin Wu wrote:
> > +static inline u64 TDX_STATUS(u64 err)
> > +{
> > +	return err & TDX_STATUS_MASK;
> > +}
> 
> Should be tagged with __always_inline since it's used in noinstr range.

Nice, catch. Yes both should be done.