linux-kernel - Re: [PATCH v3 1/3] ACPI/APEI: Add hest_parse_pcie

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Message-ID: <202407190133.KRXYQI5m-lkp@intel.com>
Date: Fri, 19 Jul 2024 01:53:47 +0800
From: kernel test robot <lkp@...el.com>
To: LeoLiu-oc <LeoLiu-oc@...oxin.com>, rafael@...nel.org, lenb@...nel.org,
	james.morse@....com, tony.luck@...el.com, bp@...en8.de,
	bhelgaas@...gle.com, robert.moore@...el.com, yazen.ghannam@....com,
	avadhut.naik@....com, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	acpica-devel@...ts.linux.dev
Cc: oe-kbuild-all@...ts.linux.dev, CobeChen@...oxin.com, TimGuo@...oxin.com,
	TonyWWang-oc@...oxin.com, leoliu-oc@...oxin.com
Subject: Re: [PATCH v3 1/3] ACPI/APEI: Add hest_parse_pcie_aer()

Hi LeoLiu-oc,

kernel test robot noticed the following build warnings:

[auto build test WARNING on pci/for-linus]
[also build test WARNING on rafael-pm/linux-next rafael-pm/bleeding-edge linus/master v6.10 next-20240718]
[cannot apply to pci/next]
[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/LeoLiu-oc/ACPI-APEI-Add-hest_parse_pcie_aer/20240718-144218
base:   https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git for-linus
patch link:    https://lore.kernel.org/r/20240718062405.30571-2-LeoLiu-oc%40zhaoxin.com
patch subject: [PATCH v3 1/3] ACPI/APEI: Add hest_parse_pcie_aer()
config: x86_64-randconfig-161-20240718 (https://download.01.org/0day-ci/archive/20240719/202407190133.KRXYQI5m-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240719/202407190133.KRXYQI5m-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 <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407190133.KRXYQI5m-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/acpi/apei/hest.c: In function 'hest_source_is_pcie_aer':
>> drivers/acpi/apei/hest.c:155:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
     155 |                 if (pcie_type != PCI_EXP_TYPE_ROOT_PORT)
         |                    ^
   drivers/acpi/apei/hest.c:157:9: note: here
     157 |         case ACPI_HEST_TYPE_AER_ENDPOINT:
         |         ^~~~
   drivers/acpi/apei/hest.c:158:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
     158 |                 if (pcie_type != PCI_EXP_TYPE_ENDPOINT)
         |                    ^
   drivers/acpi/apei/hest.c:160:9: note: here
     160 |         case ACPI_HEST_TYPE_AER_BRIDGE:
         |         ^~~~
   drivers/acpi/apei/hest.c:161:20: warning: this statement may fall through [-Wimplicit-fallthrough=]
     161 |                 if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE && pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE)
         |                    ^
   drivers/acpi/apei/hest.c:163:9: note: here
     163 |         default:
         |         ^~~~~~~


vim +155 drivers/acpi/apei/hest.c

   144	
   145	static bool hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr, struct pci_dev *dev)
   146	{
   147		u16 hest_type = hest_hdr->type;
   148		u8 pcie_type = pci_pcie_type(dev);
   149		struct acpi_hest_aer_common *common;
   150	
   151		common = (struct acpi_hest_aer_common *)(hest_hdr + 1);
   152	
   153		switch (hest_type) {
   154		case ACPI_HEST_TYPE_AER_ROOT_PORT:
 > 155			if (pcie_type != PCI_EXP_TYPE_ROOT_PORT)
   156				return false;
   157		case ACPI_HEST_TYPE_AER_ENDPOINT:
   158			if (pcie_type != PCI_EXP_TYPE_ENDPOINT)
   159				return false;
   160		case ACPI_HEST_TYPE_AER_BRIDGE:
   161			if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE && pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE)
   162				return false;
   163		default:
   164			return false;
   165		}
   166	
   167		if (common->flags & ACPI_HEST_GLOBAL)
   168			return true;
   169	
   170		if (hest_match_pci_devfn(common, dev))
   171			return true;
   172	
   173		return false;
   174	}
   175	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki