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X-CSE-ConnectionGUID: wykbKnZNSdKzKIlOCvUbuw== X-CSE-MsgGUID: mdFSWAWBT3i+mzkR65xj+Q== X-IronPort-AV: E=McAfee;i="6800,10657,11915"; a="89952068" X-IronPort-AV: E=Sophos;i="6.27,121,1787036400"; d="scan'208";a="89952068" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Sep 2026 19:46:59 -0700 X-CSE-ConnectionGUID: tKbgamVLTKWaiOBujgJJMQ== X-CSE-MsgGUID: LzJbJEBfS9mn8boEgimRlQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,121,1787036400"; d="scan'208";a="273424593" Received: from lkp-server01.sh.intel.com (HELO 462990a40a85) ([10.239.97.150]) by fmviesa010.fm.intel.com with ESMTP; 24 Sep 2026 19:46:57 -0700 Received: from kbuild by 462990a40a85 with local (Exim 4.98.2) (envelope-from ) id 1x9vxf-00000000Jx8-2Z03; Fri, 25 Sep 2026 02:46:55 +0000 Date: Fri, 25 Sep 2026 10:46:23 +0800 From: kernel test robot To: cros-kernel-buildreports@googlegroups.com Cc: oe-kbuild-all@lists.linux.dev Subject: [android-common:android16-6.12-2026-06 2/2] drivers/virt/halla/hvm_vm.c:435: warning: Function parameter or struct member 'hvm' not described in 'hvm_destroy_vm' Message-ID: <202609251029.5tw2ShPo-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Hi Junho, FYI, the error/warning still remains. tree: https://android.googlesource.com/kernel/common android16-6.12-2026-06 head: 20ed81c930ecc79af10bfca7c8de6d163fe051b7 commit: e17566975f96abbb6d6b84aa4784161e51264095 [2/2] ANDROID: virt: halla: Tie struct hvm lifetime to vcpu fds with a kref config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20260925/202609251029.5tw2ShPo-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 6e714c8d91116794cb699cdf80c26afe9cda3ef3) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260925/202609251029.5tw2ShPo-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/202609251029.5tw2ShPo-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/virt/halla/hvm_vm.c:435: warning: Function parameter or struct member 'hvm' not described in 'hvm_destroy_vm' Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for INTEL_MEI_ME Depends on [n]: X86 && PCI [=y] Selected by [m]: - INTEL_MEI_HDCP [=m] && (DRM_I915 [=n] || DRM_XE [=m]) - INTEL_MEI_PXP [=m] && (DRM_I915 [=n] || DRM_XE [=m]) vim +435 drivers/virt/halla/hvm_vm.c e17566975f96abb Junho Choi 2026-06-10 423 e17566975f96abb Junho Choi 2026-06-10 424 /** e17566975f96abb Junho Choi 2026-06-10 425 * hvm_destroy_vm() - VM fd release path. e17566975f96abb Junho Choi 2026-06-10 426 * e17566975f96abb Junho Choi 2026-06-10 427 * Tears down everything that owns guest memory or hypervisor S2 e17566975f96abb Junho Choi 2026-06-10 428 * resources, detaches the live vcpus from the hypervisor, removes e17566975f96abb Junho Choi 2026-06-10 429 * the VM from hvm_list, then drops the VM fd's kref. The struct e17566975f96abb Junho Choi 2026-06-10 430 * hvm itself stays alive as long as any vcpu fd still holds a e17566975f96abb Junho Choi 2026-06-10 431 * reference, so a vcpu ioctl racing with VM fd close stays on e17566975f96abb Junho Choi 2026-06-10 432 * valid memory until the vcpu fd is also closed. e17566975f96abb Junho Choi 2026-06-10 433 */ 9007a992df6c7fb Kim Mankyum 2025-08-27 434 static void hvm_destroy_vm(struct hvm *hvm) 9007a992df6c7fb Kim Mankyum 2025-08-27 @435 { e17566975f96abb Junho Choi 2026-06-10 436 unsigned long ret; 9007a992df6c7fb Kim Mankyum 2025-08-27 437 9007a992df6c7fb Kim Mankyum 2025-08-27 438 mutex_lock(&hvm->lock); 9007a992df6c7fb Kim Mankyum 2025-08-27 439 f2801c7c470f11d Kim Mankyum 2026-04-14 440 hvm_pre_destroy_vm(hvm); 9007a992df6c7fb Kim Mankyum 2025-08-27 441 9007a992df6c7fb Kim Mankyum 2025-08-27 442 hvm_vm_irqfd_release(hvm); 9007a992df6c7fb Kim Mankyum 2025-08-27 443 9007a992df6c7fb Kim Mankyum 2025-08-27 444 ret = hvm_reclaim_guest_memory(hvm); 9007a992df6c7fb Kim Mankyum 2025-08-27 445 hvm_reclaim_guest_stage2_pgtable(hvm); 9007a992df6c7fb Kim Mankyum 2025-08-27 446 9007a992df6c7fb Kim Mankyum 2025-08-27 447 hvm_destroy_vcpus(hvm); 9007a992df6c7fb Kim Mankyum 2025-08-27 448 9007a992df6c7fb Kim Mankyum 2025-08-27 449 mutex_lock(&hvm_list_lock); 9007a992df6c7fb Kim Mankyum 2025-08-27 450 list_del(&hvm->vm_list); 9007a992df6c7fb Kim Mankyum 2025-08-27 451 mutex_unlock(&hvm_list_lock); 9007a992df6c7fb Kim Mankyum 2025-08-27 452 9007a992df6c7fb Kim Mankyum 2025-08-27 453 mutex_unlock(&hvm->lock); 9007a992df6c7fb Kim Mankyum 2025-08-27 454 9007a992df6c7fb Kim Mankyum 2025-08-27 455 /** 9007a992df6c7fb Kim Mankyum 2025-08-27 456 * Have to leave the page pinned as we don't know whether its 9007a992df6c7fb Kim Mankyum 2025-08-27 457 * save to access 9007a992df6c7fb Kim Mankyum 2025-08-27 458 */ 9007a992df6c7fb Kim Mankyum 2025-08-27 459 if (!ret) { 9007a992df6c7fb Kim Mankyum 2025-08-27 460 /** 9007a992df6c7fb Kim Mankyum 2025-08-27 461 * No need to lock here becauese it's single-threaded 9007a992df6c7fb Kim Mankyum 2025-08-27 462 * execution 9007a992df6c7fb Kim Mankyum 2025-08-27 463 */ 9007a992df6c7fb Kim Mankyum 2025-08-27 464 hvm_destroy_all_ppage(hvm); 9007a992df6c7fb Kim Mankyum 2025-08-27 465 } 9007a992df6c7fb Kim Mankyum 2025-08-27 466 e17566975f96abb Junho Choi 2026-06-10 467 hvm_vm_put(hvm); 9007a992df6c7fb Kim Mankyum 2025-08-27 468 } 9007a992df6c7fb Kim Mankyum 2025-08-27 469 :::::: The code at line 435 was first introduced by commit :::::: 9007a992df6c7fbc50cbcc21613b3a5c3c019ab6 ANDROID: drivers: virt: Initialization halla module :::::: TO: Kim Mankyum :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki