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X-CSE-ConnectionGUID: 3dAiSv+7RBux8USqSzt/nA== X-CSE-MsgGUID: miQ/zjdMT8yKApCRQKnfOA== X-IronPort-AV: E=McAfee;i="6800,10657,11476"; a="55887736" X-IronPort-AV: E=Sophos;i="6.16,268,1744095600"; d="scan'208";a="55887736" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jun 2025 09:59:48 -0700 X-CSE-ConnectionGUID: J+uphDd+TlqC0dcbXL4H5w== X-CSE-MsgGUID: sbLwaa6ITd6slQ3Ps7cfVw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,268,1744095600"; d="scan'208";a="158066056" Received: from aschofie-mobl2.amr.corp.intel.com (HELO [10.125.109.42]) ([10.125.109.42]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jun 2025 09:59:48 -0700 Message-ID: <1fbdfffa-ac43-419c-8d96-c5bb1bdac73f@intel.com> Date: Thu, 26 Jun 2025 09:59:47 -0700 Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCHv2 01/12] x86/tdx: Consolidate TDX error handling To: Sean Christopherson Cc: "kirill.shutemov@linux.intel.com" , Rick P Edgecombe , "pbonzini@redhat.com" , "dave.hansen@linux.intel.com" , Chao Gao , "bp@alien8.de" , Kai Huang , "x86@kernel.org" , "mingo@redhat.com" , Yan Y Zhao , "tglx@linutronix.de" , "kvm@vger.kernel.org" , "linux-coco@lists.linux.dev" , Isaku Yamahata , "linux-kernel@vger.kernel.org" References: <20250609191340.2051741-1-kirill.shutemov@linux.intel.com> <20250609191340.2051741-2-kirill.shutemov@linux.intel.com> <5cfb2e09-7ecb-4144-9122-c11152b18b5e@intel.com> <3e55fd58-1d1c-437a-9e0a-72ac92facbb5@intel.com> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 6/26/25 08:51, Sean Christopherson wrote: > No, I was thinking: > > if (IS_TDX_ERR_OPERAND_BUSY(err)) > > e.g. to so that it looks like IS_ERR(), which is a familiar pattern. That would be a more more compelling if IS_ERR() worked on integers. It works on pointers, so I'm not sure it's a pattern we want to apply to integers here. I kind of hate all of this. I'd kinda prefer that we just shove the TDX error codes as far up into the helpers as possible rather than making them easier to deal with in random code.