linux-kernel - Re: [PATCH] PCI: VMD: ACPI: Make ACPI companion lookup work for VMD bus

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Message-ID: <202108210447.M6zu1m0K-lkp@intel.com>
Date:   Sat, 21 Aug 2021 05:06:05 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Jonathan Derrick <jonathan.derrick@...el.com>
Cc:     kbuild-all@...ts.01.org, Wendy Wang <wendy.wang@...el.com>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        David Box <david.e.box@...ux.intel.com>
Subject: Re: [PATCH] PCI: VMD: ACPI: Make ACPI companion lookup work for VMD
 bus

Hi "Rafael,

I love your patch! Perhaps something to improve:

[auto build test WARNING on pci/next]
[also build test WARNING on pm/linux-next v5.14-rc6 next-20210820]
[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]

url:    https://github.com/0day-ci/linux/commits/Rafael-J-Wysocki/PCI-VMD-ACPI-Make-ACPI-companion-lookup-work-for-VMD-bus/20210821-001443
base:   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: i386-randconfig-s032-20210821 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-348-gf0e6938b-dirty
        # https://github.com/0day-ci/linux/commit/0722ac93bc98deb9a9c445d7dfb78e7e068c9cb0
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Rafael-J-Wysocki/PCI-VMD-ACPI-Make-ACPI-companion-lookup-work-for-VMD-bus/20210821-001443
        git checkout 0722ac93bc98deb9a9c445d7dfb78e7e068c9cb0
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/pci/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)
   drivers/pci/pci-acpi.c:1019:64: sparse: sparse: restricted pci_power_t degrades to integer
>> drivers/pci/pci-acpi.c:1164:1: sparse: sparse: symbol 'pci_acpi_companion_lookup_key' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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