Re: [PATCH v6 10/21] KVM: s390: pci: add basic kvm_zdev structure

[kernel test robot <lkp@intel.com>]

Hi Matthew,

I love your patch! Perhaps something to improve:

[auto build test WARNING on v5.18-rc4]
[cannot apply to s390/features kvms390/next awilliam-vfio/next next-20220427]
[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/intel-lab-lkp/linux/commits/Matthew-Rosato/KVM-s390-enable-zPCI-for-interpretive-execution/20220427-041853
base:    af2d861d4cd2a4da5137f795ee3509e6f944a25b
config: s390-defconfig (https://download.01.org/0day-ci/archive/20220427/202204271653.1ZoYsV9W-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/e6d8c620090a7b184afdf5b5123d10ac45776eaf
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Matthew-Rosato/KVM-s390-enable-zPCI-for-interpretive-execution/20220427-041853
        git checkout e6d8c620090a7b184afdf5b5123d10ac45776eaf
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash arch/s390/kvm/

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

All warnings (new ones prefixed by >>):

>> arch/s390/kvm/pci.c:14:5: warning: no previous prototype for 'kvm_s390_pci_dev_open' [-Wmissing-prototypes]
      14 | int kvm_s390_pci_dev_open(struct zpci_dev *zdev)
         |     ^~~~~~~~~~~~~~~~~~~~~
>> arch/s390/kvm/pci.c:29:6: warning: no previous prototype for 'kvm_s390_pci_dev_release' [-Wmissing-prototypes]
      29 | void kvm_s390_pci_dev_release(struct zpci_dev *zdev)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~


vim +/kvm_s390_pci_dev_open +14 arch/s390/kvm/pci.c

    13	
  > 14	int kvm_s390_pci_dev_open(struct zpci_dev *zdev)
    15	{
    16		struct kvm_zdev *kzdev;
    17	
    18		kzdev = kzalloc(sizeof(struct kvm_zdev), GFP_KERNEL);
    19		if (!kzdev)
    20			return -ENOMEM;
    21	
    22		kzdev->zdev = zdev;
    23		zdev->kzdev = kzdev;
    24	
    25		return 0;
    26	}
    27	EXPORT_SYMBOL_GPL(kvm_s390_pci_dev_open);
    28	
  > 29	void kvm_s390_pci_dev_release(struct zpci_dev *zdev)

-- 
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https://01.org/lkp