[vireshk:virtio/msg-test 2/26] drivers/virtio/virtio_msg_mmio.c:79:17: error: implicit declaration of function 'writeq'; did you mean 'writeb'?

[vireshk:virtio/msg-test 2/26] drivers/virtio/virtio_msg_mmio.c:79:17: error: implicit declaration of function 'writeq'; did you mean 'writeb'?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux.git virtio/msg-test
head:   702c1af18bf513f8297bfbb99b859c37b7b900ab
commit: 4095173660abdd1c436f8761ba626ad1a2098fda [2/26] virtio: Add support for MMIO based channel bus
config: arc-randconfig-r131-20241118 (https://download.01.org/0day-ci/archive/20241119/202411190237.nGmIEspd-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20241119/202411190237.nGmIEspd-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411190237.nGmIEspd-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/virtio/virtio_msg_mmio.c: In function 'virtio_msg_mmio_send':
>> drivers/virtio/virtio_msg_mmio.c:79:17: error: implicit declaration of function 'writeq'; did you mean 'writeb'? [-Werror=implicit-function-declaration]
      79 |                 writeq(*(data + i), addr + i);
         |                 ^~~~~~
         |                 writeb
>> drivers/virtio/virtio_msg_mmio.c:87:31: error: implicit declaration of function 'readq'; did you mean 'readw'? [-Werror=implicit-function-declaration]
      87 |                 *(data + i) = readq(addr + i);
         |                               ^~~~~
         |                               readw
   cc1: some warnings being treated as errors


vim +79 drivers/virtio/virtio_msg_mmio.c

    68	
    69	static int virtio_msg_mmio_send(struct virtio_msg_device *vmdev,
    70					struct virtio_msg *request,
    71					struct virtio_msg *response)
    72	{
    73		struct virtio_msg_mmio_device *vmmdev = to_virtio_msg_mmio_device(vmdev);
    74		int i, len = sizeof(*request) / sizeof(u64);
    75		u64 *data = (u64 *) request;
    76		u64 *addr = vmmdev->base;
    77	
    78		for (i = 0; i < len; i++)
  > 79			writeq(*(data + i), addr + i);
    80	
    81		if (!response)
    82			return 0;
    83	
    84		data = (u64 *) response;
    85	
    86		for (i = 0; i < len; i++)
  > 87			*(data + i) = readq(addr + i);
    88	
    89		return 0;
    90	}
    91	

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