From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 3E61D37880B; Tue, 7 Apr 2026 04:02:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775534563; cv=none; b=rGgNYfEwyUb4lnjXLd9lSId8MXLLaWx4To6Lq8z4Yoyx+bnz+yb+o3Zz+57/2bnufbjqPWMmshwk+OQUgZgij3iWrSVJJ8lWTqQWV57esgPzgRYKglZfVnVTxlkMgttLzkUEWWk9IXzW3dq2XlPVi3pbZ3JqhbicXRGJpIwmC8A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775534563; c=relaxed/simple; bh=bZyf8aTGjRvUAtTCX/fVYHoKib0HWebO8DvkWEfWZDw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aQ/G734awu++vapGXb3GAQ+DSsdruUJqah49h+yAs+JCC7L/BLjsiiY2aaesuOjhkI88/9NHsFFKvYdZrTckT+19SfKVTOpYMaHBQaFQVAmzO9iGkXxe69MAGbN+r2u9YngwMsTl5iwsViDImcR6BPIZWn3hUAEq2Yp+yro0rdQ= 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=az8PeBPP; arc=none smtp.client-ip=192.198.163.17 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="az8PeBPP" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1775534562; x=1807070562; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=bZyf8aTGjRvUAtTCX/fVYHoKib0HWebO8DvkWEfWZDw=; b=az8PeBPPbQtCAz5bDhAL3yApJAEPN2oVD12aNb5tU/ImwUVKxjv+6kro CWFLa9Emv3mUyAb04XblsT1azRKHgxsrAW+wlBWmd4A1TXfSHdwYwjrsi +/kAP3va7KQPsVRKm04XLwvPrxFVFecB++MPksHo5qyzg8gDCiJdRu4Nu S6W5xi1e00LxMnJyjUMfksYrsXe7o/DsCQiPxImz9WXwIx8zgdRz2/OCT T6UVvgk7X+wi4rwFRu+W1srkgRxQTWJ4hgl67yBdraG/MLYek8WLxNzb2 azshbqcAxz2l27qP8WyVWcFza9ErrU/6WhiZg52cr9tJmzHfXSZTVAE+c Q==; X-CSE-ConnectionGUID: l0oDYivKTFOGJUMU+F1HVw== X-CSE-MsgGUID: SNYMX4rYSCmCHAiKaAn2Lg== X-IronPort-AV: E=McAfee;i="6800,10657,11751"; a="76386034" X-IronPort-AV: E=Sophos;i="6.23,164,1770624000"; d="scan'208";a="76386034" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Apr 2026 21:02:38 -0700 X-CSE-ConnectionGUID: IWZOo124S120ONOvf0EHuA== X-CSE-MsgGUID: MSgBIt8UTzefnw9GUgvIKA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,164,1770624000"; d="scan'208";a="227957145" Received: from lkp-server01.sh.intel.com (HELO d00eb8a6782a) ([10.239.97.150]) by orviesa009.jf.intel.com with ESMTP; 06 Apr 2026 21:02:36 -0700 Received: from kbuild by d00eb8a6782a with local (Exim 4.98.2) (envelope-from ) id 1w9xe5-00000000083-3UAi; Tue, 07 Apr 2026 04:02:33 +0000 Date: Tue, 7 Apr 2026 12:01:48 +0800 From: kernel test robot To: Bjorn Helgaas , linux-pci@vger.kernel.org Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Simon Richter , linux-kernel@vger.kernel.org, Bjorn Helgaas Subject: Re: [PATCH v2] PCI/VGA: Move pci_set_vga_state() to vgaarb.c Message-ID: <202604060643.IASWcNje-lkp@intel.com> References: <20260312224713.1305228-1-bhelgaas@google.com> 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: <20260312224713.1305228-1-bhelgaas@google.com> Hi Bjorn, kernel test robot noticed the following build errors: [auto build test ERROR on pci/next] [also build test ERROR on pci/for-linus linus/master v7.0-rc6] [cannot apply to next-20260403] [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/Bjorn-Helgaas/PCI-VGA-Move-pci_set_vga_state-to-vgaarb-c/20260314-150705 base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next patch link: https://lore.kernel.org/r/20260312224713.1305228-1-bhelgaas%40google.com patch subject: [PATCH v2] PCI/VGA: Move pci_set_vga_state() to vgaarb.c config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20260406/202604060643.IASWcNje-lkp@intel.com/config) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260406/202604060643.IASWcNje-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/202604060643.IASWcNje-lkp@intel.com/ All errors (new ones prefixed by >>): >> drivers/pci/vgaarb.c:229:7: error: call to undeclared function 'pci_set_vga_state_arch'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 229 | rc = pci_set_vga_state_arch(dev, decode, command_bits, flags); | ^ drivers/pci/vgaarb.c:229:7: note: did you mean 'pci_set_vga_state'? drivers/pci/vgaarb.c:218:12: note: 'pci_set_vga_state' declared here 218 | static int pci_set_vga_state(struct pci_dev *dev, bool decode, | ^ 219 | unsigned int command_bits, u32 flags) 220 | { 221 | struct pci_bus *bus; 222 | struct pci_dev *bridge; 223 | u16 cmd; 224 | int rc; 225 | 226 | WARN_ON((flags & PCI_VGA_STATE_CHANGE_DECODES) && (command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY))); 227 | 228 | /* ARCH specific VGA enables */ 229 | rc = pci_set_vga_state_arch(dev, decode, command_bits, flags); | ~~~~~~~~~~~~~~~~~~~~~~ | pci_set_vga_state 1 error generated. vim +/pci_set_vga_state_arch +229 drivers/pci/vgaarb.c 209 210 /** 211 * pci_set_vga_state - set VGA decode state on device and parents if requested 212 * @dev: the PCI device 213 * @decode: true = enable decoding, false = disable decoding 214 * @command_bits: PCI_COMMAND_IO and/or PCI_COMMAND_MEMORY 215 * @flags: traverse ancestors and change bridges 216 * CHANGE_BRIDGE_ONLY / CHANGE_BRIDGE 217 */ 218 static int pci_set_vga_state(struct pci_dev *dev, bool decode, 219 unsigned int command_bits, u32 flags) 220 { 221 struct pci_bus *bus; 222 struct pci_dev *bridge; 223 u16 cmd; 224 int rc; 225 226 WARN_ON((flags & PCI_VGA_STATE_CHANGE_DECODES) && (command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY))); 227 228 /* ARCH specific VGA enables */ > 229 rc = pci_set_vga_state_arch(dev, decode, command_bits, flags); 230 if (rc) 231 return rc; 232 233 if (flags & PCI_VGA_STATE_CHANGE_DECODES) { 234 pci_read_config_word(dev, PCI_COMMAND, &cmd); 235 if (decode) 236 cmd |= command_bits; 237 else 238 cmd &= ~command_bits; 239 pci_write_config_word(dev, PCI_COMMAND, cmd); 240 } 241 242 if (!(flags & PCI_VGA_STATE_CHANGE_BRIDGE)) 243 return 0; 244 245 bus = dev->bus; 246 while (bus) { 247 bridge = bus->self; 248 if (bridge) { 249 pci_read_config_word(bridge, PCI_BRIDGE_CONTROL, 250 &cmd); 251 if (decode) 252 cmd |= PCI_BRIDGE_CTL_VGA; 253 else 254 cmd &= ~PCI_BRIDGE_CTL_VGA; 255 pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, 256 cmd); 257 } 258 bus = bus->parent; 259 } 260 return 0; 261 } 262 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki