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Date:   Sat, 8 Oct 2022 06:45:12 +0800
From:   kernel test robot <>
To:     Max Gurtovoy <>
        "Michael S. Tsirkin" <>,
        Johannes Thumshirn <>
Subject: [mst-vhost:vhost 11/19] include/linux/stddef.h:8:14: error: called
 object is not a function or function pointer

tree: vhost
head:   0613363a73cff31ebfbb0b13a6522b13d68c3a66
commit: 5d300519d4977317e70c62031c4b2cf282a42710 [11/19] virtio_pci: use common helper to configure SR-IOV
config: m68k-randconfig-r024-20221005
compiler: m68k-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git remote add mst-vhost
        git fetch --no-tags mst-vhost vhost
        git checkout 5d300519d4977317e70c62031c4b2cf282a42710
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/virtio/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <>

All errors (new ones prefixed by >>):

   In file included from include/uapi/linux/posix_types.h:5,
                    from include/uapi/linux/types.h:14,
                    from include/linux/types.h:6,
                    from include/linux/kasan-checks.h:5,
                    from include/asm-generic/rwonce.h:26,
                    from ./arch/m68k/include/generated/asm/rwonce.h:1,
                    from include/linux/compiler.h:254,
                    from include/linux/build_bug.h:5,
                    from include/linux/container_of.h:5,
                    from include/linux/list.h:5,
                    from include/linux/module.h:12,
                    from drivers/virtio/virtio_pci_common.h:19,
                    from drivers/virtio/virtio_pci_common.c:17:
   drivers/virtio/virtio_pci_common.c: In function 'virtio_pci_sriov_configure':
>> include/linux/stddef.h:8:14: error: called object is not a function or function pointer
       8 | #define NULL ((void *)0)
         |              ^
   include/linux/pci.h:2231:41: note: in expansion of macro 'NULL'
    2231 | #define pci_sriov_configure_simple      NULL
         |                                         ^~~~
   drivers/virtio/virtio_pci_common.c:617:16: note: in expansion of macro 'pci_sriov_configure_simple'
     617 |         return pci_sriov_configure_simple(pci_dev, num_vfs);
         |                ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/virtio/virtio_pci_common.c:618:1: error: control reaches end of non-void function [-Werror=return-type]
     618 | }
         | ^
   cc1: some warnings being treated as errors

vim +8 include/linux/stddef.h

^1da177e4c3f41 Linus Torvalds   2005-04-16  6  
^1da177e4c3f41 Linus Torvalds   2005-04-16  7  #undef NULL
^1da177e4c3f41 Linus Torvalds   2005-04-16 @8  #define NULL ((void *)0)
6e218287432472 Richard Knutsson 2006-09-30  9  

:::::: The code at line 8 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <>
:::::: CC: Linus Torvalds <>

0-DAY CI Kernel Test Service

View attachment "config" of type "text/plain" (130436 bytes)

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