From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1524C433FF for ; Mon, 5 Aug 2019 13:12:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8426D216F4 for ; Mon, 5 Aug 2019 13:12:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565010755; bh=BgD3mM4HkmQ/gs+W/RqVaygAB9Nz3ZXAEzte4C+fkoE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=oqat4OUx5wtNC2qYz2TuK6f9jMk3vbC8HNWywWJ9XBkMC+H308txmxVDC+8gENw/7 4jPMDLdI9Tb7pj2p68j/6BiQB1d0qz2hbCfo5JZJpdiR75gwrVmg/sHL92JPokvaDh m/qaaCRi1To18LP3nBQpOOtbw+zz4k8HvwZEhXBU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730035AbfHENMe (ORCPT ); Mon, 5 Aug 2019 09:12:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:49224 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730305AbfHENKT (ORCPT ); Mon, 5 Aug 2019 09:10:19 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1F2A52067D; Mon, 5 Aug 2019 13:10:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1565010618; bh=BgD3mM4HkmQ/gs+W/RqVaygAB9Nz3ZXAEzte4C+fkoE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1P0v75UwMXGNwttu87v2492ie2NpegFtYxnpqVu2+J6LkfTVm7goEBcn8aB/mEhkq o2NnJDYh5r4k8DbqU102NiysNfWgUd3QhuRbeK/PKMEx1N535UxFGRkSdCVlHM/LUT GMNLGaBvRRs8Utcq2BMolHWa0j+HCbVXORDxsw+0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Josh Poimboeuf , Thomas Gleixner , Juergen Gross , "Peter Zijlstra (Intel)" , Sasha Levin Subject: [PATCH 4.19 39/74] x86/paravirt: Fix callee-saved function ELF sizes Date: Mon, 5 Aug 2019 15:02:52 +0200 Message-Id: <20190805124939.004970037@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190805124935.819068648@linuxfoundation.org> References: <20190805124935.819068648@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org [ Upstream commit 083db6764821996526970e42d09c1ab2f4155dd4 ] The __raw_callee_save_*() functions have an ELF symbol size of zero, which confuses objtool and other tools. Fixes a bunch of warnings like the following: arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pte_val() is missing an ELF size annotation arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_pgd_val() is missing an ELF size annotation arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pte() is missing an ELF size annotation arch/x86/xen/mmu_pv.o: warning: objtool: __raw_callee_save_xen_make_pgd() is missing an ELF size annotation Signed-off-by: Josh Poimboeuf Signed-off-by: Thomas Gleixner Reviewed-by: Juergen Gross Acked-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/afa6d49bb07497ca62e4fc3b27a2d0cece545b4e.1563413318.git.jpoimboe@redhat.com Signed-off-by: Sasha Levin --- arch/x86/include/asm/paravirt.h | 1 + arch/x86/kernel/kvm.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index e375d4266b53e..a04677038872c 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -768,6 +768,7 @@ static __always_inline bool pv_vcpu_is_preempted(long cpu) PV_RESTORE_ALL_CALLER_REGS \ FRAME_END \ "ret;" \ + ".size " PV_THUNK_NAME(func) ", .-" PV_THUNK_NAME(func) ";" \ ".popsection") /* Get a reference to a callee-save function */ diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index 7f89d609095ac..cee45d46e67dc 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -830,6 +830,7 @@ asm( "cmpb $0, " __stringify(KVM_STEAL_TIME_preempted) "+steal_time(%rax);" "setne %al;" "ret;" +".size __raw_callee_save___kvm_vcpu_is_preempted, .-__raw_callee_save___kvm_vcpu_is_preempted;" ".popsection"); #endif -- 2.20.1