From nobody Mon May 11 00:05:17 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25AA1C433EF for ; Wed, 20 Apr 2022 11:50:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378250AbiDTLxP (ORCPT ); Wed, 20 Apr 2022 07:53:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58028 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234463AbiDTLxO (ORCPT ); Wed, 20 Apr 2022 07:53:14 -0400 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D442511A1B for ; Wed, 20 Apr 2022 04:50:28 -0700 (PDT) Received: from zn.tnic (p200300ea971b58ed329c23fffea6a903.dip0.t-ipconnect.de [IPv6:2003:ea:971b:58ed:329c:23ff:fea6:a903]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 897111EC04EC; Wed, 20 Apr 2022 13:50:27 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1650455427; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type: content-transfer-encoding:content-transfer-encoding:in-reply-to: references; bh=QcJGoUKK849qjQfP32KT/DB395vjWIaLjTRFtrLgTuM=; b=jaMNswgxDqnjPA7/EwDWeH05ltD+uM/+vnRG3VTzzayBMBM1VsdbYJUCNOkVqcZ1Fqn4Hk Ymzh2wmsJTuf6VNHzuOUuMLyVbn5qvCq05aDgX61YeH965OHoNvhuVG/yh+3VPyDPDFAKm eSjbZoOanroDJDmBtcOSrl61Ay7o7pg= From: Borislav Petkov To: Kuppuswamy Sathyanarayanan , "Kirill A . Shutemov" Cc: X86 ML , LKML Subject: [PATCH] x86/tdx: Annotate a noreturn function Date: Wed, 20 Apr 2022 13:50:25 +0200 Message-Id: <20220420115025.5448-1-bp@alien8.de> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Borislav Petkov objdump complains: vmlinux.o: warning: objtool: __tdx_hypercall()+0x74: unreachable instruct= ion because __tdx_hypercall_failed() won't return but panic the guest. Annotate that that is ok and desired. Fixes: eb94f1b6a70a ("x86/tdx: Add __tdx_module_call() and __tdx_hypercall(= ) helper functions") Signed-off-by: Borislav Petkov Acked-by: Kirill A. Shutemov --- arch/x86/coco/tdx/tdcall.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/coco/tdx/tdcall.S b/arch/x86/coco/tdx/tdcall.S index 245888290bb6..eeb4511dc414 100644 --- a/arch/x86/coco/tdx/tdcall.S +++ b/arch/x86/coco/tdx/tdcall.S @@ -200,5 +200,6 @@ SYM_FUNC_START(__tdx_hypercall) .Lpanic: call __tdx_hypercall_failed /* __tdx_hypercall_failed never returns */ + REACHABLE jmp .Lpanic SYM_FUNC_END(__tdx_hypercall) --=20 2.35.1