From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ABAD012CDBE; Thu, 12 Feb 2026 17:16:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770916601; cv=none; b=Of7tr9VfVw9tqlBOZQAX14yk072k/ctLmMHwzD/OPNgpcJ3brxVgazg3ErJHSLDft4TqjuOjbsT1247oh2RR0Ug56w4jKEhV6bWJe2MY5XnLnAXxL4X4Z/5WTnRqEIn5PTpTkuJeNS+tAjRNFl7Wk+vTmxRE5e3vPwi141HHc1c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770916601; c=relaxed/simple; bh=ukfbKIYaWioA88MWF8i1AnL7FUSI/OI7WtGr1Ojbg/A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=EDniWgMfNI5ppG/u7XPb3io1pDsDY8Z56D8gDFwi0R1Q8dJx/xsHVT3Z3IYOe0r77IMsdZYtkrkl3YLYBPI6VV0Rn7KFoLEQS3//Iam76IGWUTMA9U7cWq0hhdVFupyALdH+NRIiwxU2UXXHaSGx6yK46Om8ZvEtA8HakKiFVr0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=ildDXyVQ; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="ildDXyVQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770916600; x=1802452600; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=ukfbKIYaWioA88MWF8i1AnL7FUSI/OI7WtGr1Ojbg/A=; b=ildDXyVQYwF0BZHuBmJYG3cmsqW+/Nw8zjGHKEwshGxoRlgAVklqhokk 5OlkZNcEyvyQAjr5V+1w8ug4JeviZT5GIROj/ZbEU3PSjTLagL2XDXeCH FaekfApv+31hGzk0WsJ45iJFtXjK9Ev6a9ThBB4yexGT3IruY6Vi9tkuX 4ZEywkzfmSERcTv80bztLH/KqiJVloCcflLnZC7M8smnJ1w4GdFHN/do2 927LqtgA6i+5ozKbdDg9Sek8TPuMAlkuKyA2zaJp1td7/dHdRMlKL+Fbh ZINIsHBz/lQ6ZlBNuTVT1cqZAAgbKF8RJSEcHmoSA0yg6ZIZblz9LTfBX A==; X-CSE-ConnectionGUID: dgzlP90mSi2aTQNPcpAyaA== X-CSE-MsgGUID: Wm7OZyMiRVaLXnZkym+97w== X-IronPort-AV: E=McAfee;i="6800,10657,11699"; a="89506901" X-IronPort-AV: E=Sophos;i="6.21,287,1763452800"; d="scan'208";a="89506901" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Feb 2026 09:16:39 -0800 X-CSE-ConnectionGUID: qkVbthVaRvaAUlpur4Lc4Q== X-CSE-MsgGUID: jk6/WEgnSiCrYlGhxCYKkQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,287,1763452800"; d="scan'208";a="235647975" Received: from igk-lkp-server01.igk.intel.com (HELO e5404a91d123) ([10.211.93.152]) by fmviesa002.fm.intel.com with ESMTP; 12 Feb 2026 09:16:38 -0800 Received: from kbuild by e5404a91d123 with local (Exim 4.98.2) (envelope-from ) id 1vqaIt-000000001ML-330b; Thu, 12 Feb 2026 17:16:35 +0000 Date: Thu, 12 Feb 2026 18:16:12 +0100 From: kernel test robot To: Paolo Bonzini , linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [PATCH 1/2] KVM: remove CONFIG_KVM_GENERIC_MMU_NOTIFIER Message-ID: <202602121838.3VZCFFcb-lkp@intel.com> References: <20260212105211.1555876-2-pbonzini@redhat.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260212105211.1555876-2-pbonzini@redhat.com> Hi Paolo, kernel test robot noticed the following build errors: [auto build test ERROR on kvm/queue] [also build test ERROR on kvm/next kvms390/next next-20260212] [cannot apply to powerpc/topic/ppc-kvm kvmarm/next linus/master kvm/linux-next v6.16-rc1] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Paolo-Bonzini/KVM-remove-CONFIG_KVM_GENERIC_MMU_NOTIFIER/20260212-185546 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20260212105211.1555876-2-pbonzini%40redhat.com patch subject: [PATCH 1/2] KVM: remove CONFIG_KVM_GENERIC_MMU_NOTIFIER config: x86_64-kexec (https://download.01.org/0day-ci/archive/20260212/202602121838.3VZCFFcb-lkp@intel.com/config) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260212/202602121838.3VZCFFcb-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202602121838.3VZCFFcb-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/x86/kvm/../../../virt/kvm/kvm_main.c:900:9: error: call to undeclared function 'mmu_notifier_register'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 900 | return mmu_notifier_register(&kvm->mmu_notifier, current->mm); | ^ arch/x86/kvm/../../../virt/kvm/kvm_main.c:900:9: note: did you mean 'mmu_notifier_release'? include/linux/mmu_notifier.h:598:20: note: 'mmu_notifier_release' declared here 598 | static inline void mmu_notifier_release(struct mm_struct *mm) | ^ >> arch/x86/kvm/../../../virt/kvm/kvm_main.c:1220:3: error: call to undeclared function 'mmu_notifier_unregister'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1220 | mmu_notifier_unregister(&kvm->mmu_notifier, current->mm); | ^ arch/x86/kvm/../../../virt/kvm/kvm_main.c:1220:3: note: did you mean 'preempt_notifier_unregister'? include/linux/preempt.h:357:6: note: 'preempt_notifier_unregister' declared here 357 | void preempt_notifier_unregister(struct preempt_notifier *notifier); | ^ arch/x86/kvm/../../../virt/kvm/kvm_main.c:1283:2: error: call to undeclared function 'mmu_notifier_unregister'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1283 | mmu_notifier_unregister(&kvm->mmu_notifier, kvm->mm); | ^ 3 errors generated. vim +/mmu_notifier_register +900 arch/x86/kvm/../../../virt/kvm/kvm_main.c 4c07b0a4b6df45 Avi Kivity 2009-12-20 896 4c07b0a4b6df45 Avi Kivity 2009-12-20 897 static int kvm_init_mmu_notifier(struct kvm *kvm) 4c07b0a4b6df45 Avi Kivity 2009-12-20 898 { 4c07b0a4b6df45 Avi Kivity 2009-12-20 899 kvm->mmu_notifier.ops = &kvm_mmu_notifier_ops; 4c07b0a4b6df45 Avi Kivity 2009-12-20 @900 return mmu_notifier_register(&kvm->mmu_notifier, current->mm); 4c07b0a4b6df45 Avi Kivity 2009-12-20 901 } 4c07b0a4b6df45 Avi Kivity 2009-12-20 902 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki