From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (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 3CFE02673AA for ; Sat, 13 Dec 2025 22:27:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765664848; cv=none; b=nZ09HlagIn0A79+DV2/8Z5RAvu/Vby3NZgG2GqqLijpVjKkgjHZXnz/XpQdAt+DG6kLYREwQSMR/NmSr2LHxGvvOqpCwru1MfoCZgX20EzY/97Xaesa0/0kTQEPNu1YlXV74oEgP9pWt80X9CDql6rB6PVa/QqPEL2fplBe6aZI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765664848; c=relaxed/simple; bh=8GrEwgFr5D15sUIJrLwFkH6mqqKztZQ+dKcQ5MDljt8=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=cMIRCfiEyirJ7N6iFzCvdcSEuV8WWZl8LlAegNbUkJLfj5WJYG7Zv5zFF8xO0wNAn6NeXJhZTAlFKgEb/n76qzrMSGPdRHTyiYg9Yf2Bd3vasl7mBT45WTK95NY4BxDCUx+DYibkAzBjPw3QxfyMuGWMI3FIt6PiwCurDvteYcA= 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=mT1KSxhA; arc=none smtp.client-ip=192.198.163.9 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="mT1KSxhA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1765664847; x=1797200847; h=date:from:to:cc:subject:message-id:mime-version; bh=8GrEwgFr5D15sUIJrLwFkH6mqqKztZQ+dKcQ5MDljt8=; b=mT1KSxhAjRt4Qhld+3PRQnS5D7ETL9Hc4tQOnSo/4ZFBxmhbkFtjTc6d nRxTcufsKOM3mtvqPoWctG8qXF9fxvCvsYWa6Wjb6EZIg3J7HeFc1WBe+ xTz9luZtTIb5MiRzk3z4wA2wvtI3VJYEdVuehx4NuPmWQkxKWzMpe8eM2 MsLILH0d4k1jhXXj0cV+a74WF+LJhntPBfi3BdruyZ34EreaZVAoUGOZI MxHULrx6k9NN3vAFMsdUZjENUnechPZpD4jF1+1AQ5h6QGNRdEmLy+G+B 1J/F924CrzALgnJrxwfTIMTF1zXBtMsdhJK6RNz2txp2+douwDAYl7gOr g==; X-CSE-ConnectionGUID: fSmpdQnlSsC8S8uDwfGOmg== X-CSE-MsgGUID: 5EB+3RGwSNyQhoamBgo4Cg== X-IronPort-AV: E=McAfee;i="6800,10657,11641"; a="78328218" X-IronPort-AV: E=Sophos;i="6.21,147,1763452800"; d="scan'208";a="78328218" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Dec 2025 14:27:26 -0800 X-CSE-ConnectionGUID: CaNX3IAFRK2Jp338bQWXgg== X-CSE-MsgGUID: z3b7A0OjSUOxTrBhvBPiQg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,147,1763452800"; d="scan'208";a="197656749" Received: from lkp-server01.sh.intel.com (HELO d335e3c6db51) ([10.239.97.150]) by fmviesa008.fm.intel.com with ESMTP; 13 Dec 2025 14:27:25 -0800 Received: from kbuild by d335e3c6db51 with local (Exim 4.98.2) (envelope-from ) id 1vUY5D-000000008Gj-1cBs; Sat, 13 Dec 2025 22:27:23 +0000 Date: Sun, 14 Dec 2025 06:27:10 +0800 From: kernel test robot To: kernel@openeuler.org, dinglongwei Cc: oe-kbuild-all@lists.linux.dev Subject: [openeuler:openEuler-1.0-LTS 1942/1942] drivers/gpu/drm/nouveau/nvkm/core/object.c:37:19: warning: mixing declarations and code is a C99 extension Message-ID: <202512140652.dui78VGp-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Dave, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 5a399b91821faeec2466751db2d714b24f8eb17c commit: 901dbb48d8a4f60af427f1ec67ac1247ff219f39 [1942/1942] nouveau: lock the client object tree. config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20251214/202512140652.dui78VGp-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 1335a05ab8bc8339ce24be3a9da89d8c3f4e0571) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251214/202512140652.dui78VGp-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/202512140652.dui78VGp-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/gpu/drm/nouveau/nvkm/core/object.c:37:19: warning: mixing declarations and code is a C99 extension [-Wdeclaration-after-statement] 37 | struct rb_node *node = client->objroot.rb_node; | ^ 1 warning generated. vim +37 drivers/gpu/drm/nouveau/nvkm/core/object.c 9274f4a9ba7e70 drivers/gpu/drm/nouveau/core/core/object.c Ben Skeggs 2012-07-06 27 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 28 struct nvkm_object * 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 29 nvkm_object_search(struct nvkm_client *client, u64 handle, 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 30 const struct nvkm_object_func *func) 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 31 { 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 32 struct nvkm_object *object; 901dbb48d8a4f6 drivers/gpu/drm/nouveau/nvkm/core/object.c Dave Airlie 2024-05-09 33 unsigned long flags; 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 34 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 35 if (handle) { 901dbb48d8a4f6 drivers/gpu/drm/nouveau/nvkm/core/object.c Dave Airlie 2024-05-09 36 spin_lock_irqsave(&client->obj_lock, flags); 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 @37 struct rb_node *node = client->objroot.rb_node; 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 38 while (node) { 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 39 object = rb_entry(node, typeof(*object), node); 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 40 if (handle < object->object) 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 41 node = node->rb_left; 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 42 else 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 43 if (handle > object->object) 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 44 node = node->rb_right; 901dbb48d8a4f6 drivers/gpu/drm/nouveau/nvkm/core/object.c Dave Airlie 2024-05-09 45 else { 901dbb48d8a4f6 drivers/gpu/drm/nouveau/nvkm/core/object.c Dave Airlie 2024-05-09 46 spin_unlock_irqrestore(&client->obj_lock, flags); 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 47 goto done; 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 48 } 901dbb48d8a4f6 drivers/gpu/drm/nouveau/nvkm/core/object.c Dave Airlie 2024-05-09 49 } 901dbb48d8a4f6 drivers/gpu/drm/nouveau/nvkm/core/object.c Dave Airlie 2024-05-09 50 spin_unlock_irqrestore(&client->obj_lock, flags); 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 51 return ERR_PTR(-ENOENT); 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 52 } else { 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 53 object = &client->object; 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 54 } 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 55 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 56 done: 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 57 if (unlikely(func && object->func != func)) 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 58 return ERR_PTR(-EINVAL); 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 59 return object; 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 60 } 110cccff955313 drivers/gpu/drm/nouveau/nvkm/core/object.c Ben Skeggs 2016-12-22 61 :::::: The code at line 37 was first introduced by commit :::::: 110cccff955313c66dccd2817f62368f106d9bf2 drm/nouveau/core/object: support lookup of specific object types :::::: TO: Ben Skeggs :::::: CC: Ben Skeggs -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki