From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) (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 0A24A281365; Wed, 23 Apr 2025 16:43:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745426611; cv=none; b=MGcAIy+Itz5oOpiqvJYTxXyaYQ+eHwaEWRuMQJVdNwmuhqz/shmBAvGFD3JEog6WJk3ieZlY//0WZwn6LmfjSWWk4C6FYEJCaAT3S5BXjtsFCK0i2H0KYBCPWOrPHDJftpGh/hhLNrrBdPFAHVKqgiT4zzcYNfzs5kM58NiNV60= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745426611; c=relaxed/simple; bh=CtjI7Yy/ZC+A4HIGtbsqdPQ9cZCHp/HLEyna3GdrrX4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=KH1DvhTgoRze0EYijm2/JDPQCJkyzVUsICQh+g36q+WIzDRi6ggJ1JsFC5Gpbr0IJx3TjU6SnblNtLA2llQPz79a3d/a+FQblgb8GGt876LH36vif78DBce+iS1dF1/ECaupYhdODeBcPF5Ub1galvjub9IyJt8hqLk1q9CphL4= 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=Q0DVbuMC; arc=none smtp.client-ip=198.175.65.18 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="Q0DVbuMC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1745426609; x=1776962609; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=CtjI7Yy/ZC+A4HIGtbsqdPQ9cZCHp/HLEyna3GdrrX4=; b=Q0DVbuMC6JBW9kbdU9G+pwHLgLFkrYSZuoS30kDq+vYgK9fSze3GfRyi KJC9FDFZRb5iQ2+aSlzMjJgPRW1ffXTFOtYXiH9ShBt657pA7eWiLamMe 8ceovW0Obzjqmlp3mDT3VtbBelwgmJjPRhEsJCQsb3dKJ2FL+neViMUax 7MhmeHBVRdU5G5rNmNe9f9RhRs9klZSLL+z5w7FTnUOsEmH+rcR24h2NH i7hgchOxnJFRCc2noDdkOoDnF3MvlSO4fx/icRzpRhhm0ISiiTEogzxYj 5cJyAf06fU8yDf6niFSJUoynjuXciLwmWjAAz9NbZ5XWIoGLaWk/XCEsO Q==; X-CSE-ConnectionGUID: 1FyPE68SRZOtd0RHOx9gkw== X-CSE-MsgGUID: Yr1RFVfHQg2TiEwr7XWKyQ== X-IronPort-AV: E=McAfee;i="6700,10204,11412"; a="47160693" X-IronPort-AV: E=Sophos;i="6.15,233,1739865600"; d="scan'208";a="47160693" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Apr 2025 09:43:28 -0700 X-CSE-ConnectionGUID: 8KtdgQPhQeOoi2GRFXEbQQ== X-CSE-MsgGUID: oGwgHLJYQZyEqd7oKlj1qw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,233,1739865600"; d="scan'208";a="132256337" Received: from lkp-server01.sh.intel.com (HELO 050dd05385d1) ([10.239.97.150]) by orviesa010.jf.intel.com with ESMTP; 23 Apr 2025 09:43:27 -0700 Received: from kbuild by 050dd05385d1 with local (Exim 4.96) (envelope-from ) id 1u7dC0-0003TH-2r; Wed, 23 Apr 2025 16:43:24 +0000 Date: Thu, 24 Apr 2025 00:43:11 +0800 From: kernel test robot To: Eugen Hristev Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: Re: [RFC][PATCH 02/14] kmemdump: introduce kmemdump Message-ID: <202504240005.n3Qql6rF-lkp@intel.com> References: <20250422113156.575971-3-eugen.hristev@linaro.org> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250422113156.575971-3-eugen.hristev@linaro.org> Hi Eugen, [This is a private test report for your RFC patch.] kernel test robot noticed the following build errors: [auto build test ERROR on tip/irq/core] [also build test ERROR on tip/sched/core lwn/docs-next linus/master v6.15-rc3 next-20250423] [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/Eugen-Hristev/Documentation-add-kmemdump/20250422-193638 base: tip/irq/core patch link: https://lore.kernel.org/r/20250422113156.575971-3-eugen.hristev%40linaro.org patch subject: [RFC][PATCH 02/14] kmemdump: introduce kmemdump config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20250424/202504240005.n3Qql6rF-lkp@intel.com/config) compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250424/202504240005.n3Qql6rF-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/202504240005.n3Qql6rF-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/debug/kmemdump.c:28:28: error: call to undeclared function 'kzalloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 28 | struct kmemdump_zone *z = kzalloc(sizeof(*z), GFP_KERNEL); | ^ >> drivers/debug/kmemdump.c:28:24: error: incompatible integer to pointer conversion initializing 'struct kmemdump_zone *' with an expression of type 'int' [-Wint-conversion] 28 | struct kmemdump_zone *z = kzalloc(sizeof(*z), GFP_KERNEL); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> drivers/debug/kmemdump.c:88:2: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 88 | kfree(z); | ^ 3 errors generated. vim +/kzalloc +28 drivers/debug/kmemdump.c 15 16 /** 17 * kmemdump_register() - Register region into kmemdump. 18 * @handle: string of maximum 8 chars that identifies this region 19 * @zone: pointer to the zone of memory 20 * @size: region size 21 * 22 * Return: On success, it returns an allocated unique id that can be used 23 * at a later point to identify the region. On failure, it returns 24 * negative error value. 25 */ 26 int kmemdump_register(char *handle, void *zone, size_t size) 27 { > 28 struct kmemdump_zone *z = kzalloc(sizeof(*z), GFP_KERNEL); 29 int id; 30 31 if (!z) 32 return -ENOMEM; 33 34 mutex_lock(&kmemdump_lock); 35 36 id = idr_alloc_cyclic(&kmemdump_idr, z, 0, MAX_ZONES, GFP_KERNEL); 37 if (id < 0) { 38 mutex_unlock(&kmemdump_lock); 39 return id; 40 } 41 42 if (!backend) 43 pr_debug("kmemdump backend not available yet, waiting...\n"); 44 45 z->zone = zone; 46 z->size = size; 47 z->id = id; 48 49 if (handle) 50 strscpy(z->handle, handle, 8); 51 52 if (backend) { 53 int ret; 54 55 ret = backend->register_region(id, handle, zone, size); 56 if (ret) { 57 mutex_unlock(&kmemdump_lock); 58 return ret; 59 } 60 z->registered = true; 61 } 62 63 mutex_unlock(&kmemdump_lock); 64 return id; 65 } 66 EXPORT_SYMBOL_GPL(kmemdump_register); 67 68 /** 69 * kmemdump_unregister() - Unregister region from kmemdump. 70 * @id: unique id that was returned when this region was successfully 71 * registered initially. 72 * 73 * Return: None 74 */ 75 void kmemdump_unregister(int id) 76 { 77 struct kmemdump_zone *z; 78 79 mutex_lock(&kmemdump_lock); 80 81 z = idr_find(&kmemdump_idr, id); 82 if (!z) 83 return; 84 if (z->registered && backend) 85 backend->unregister_region(z->id); 86 87 idr_remove(&kmemdump_idr, id); > 88 kfree(z); 89 90 mutex_unlock(&kmemdump_lock); 91 } 92 EXPORT_SYMBOL_GPL(kmemdump_unregister); 93 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki