[sashal-linux-stable:queue-4.19 82/115] drivers/pci//switch/switchtec.c:636:18: error: implicit declaration of function 'readq'

[sashal-linux-stable:queue-4.19 82/115] drivers/pci//switch/switchtec.c:636:18: error: implicit declaration of function 'readq'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-4.19
head:   f4c1e7929241424c54d103804ffa1483d687e1bb
commit: ed6c256c3df5d5e796cf2e6370079fa087e9dbc0 [82/115] PCI/switchtec: Read all 64 bits of part_event_bitmap
config: i386-randconfig-a001-20200102 (attached as .config)
compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
reproduce:
        git checkout ed6c256c3df5d5e796cf2e6370079fa087e9dbc0
        # save the attached .config to linux build tree
        make ARCH=i386 

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

All errors (new ones prefixed by >>):

   drivers/pci//switch/switchtec.c: In function 'ioctl_event_summary':
>> drivers/pci//switch/switchtec.c:636:18: error: implicit declaration of function 'readq' [-Werror=implicit-function-declaration]
     s.part_bitmap = readq(&stdev->mmio_sw_event->part_event_bitmap);
                     ^~~~~
   cc1: some warnings being treated as errors

vim +/readq +636 drivers/pci//switch/switchtec.c

   626	
   627	static int ioctl_event_summary(struct switchtec_dev *stdev,
   628		struct switchtec_user *stuser,
   629		struct switchtec_ioctl_event_summary __user *usum)
   630	{
   631		struct switchtec_ioctl_event_summary s = {0};
   632		int i;
   633		u32 reg;
   634	
   635		s.global = ioread32(&stdev->mmio_sw_event->global_summary);
 > 636		s.part_bitmap = readq(&stdev->mmio_sw_event->part_event_bitmap);
   637		s.local_part = ioread32(&stdev->mmio_part_cfg->part_event_summary);
   638	
   639		for (i = 0; i < stdev->partition_count; i++) {
   640			reg = ioread32(&stdev->mmio_part_cfg_all[i].part_event_summary);
   641			s.part[i] = reg;
   642		}
   643	
   644		for (i = 0; i < SWITCHTEC_MAX_PFF_CSR; i++) {
   645			reg = ioread16(&stdev->mmio_pff_csr[i].vendor_id);
   646			if (reg != PCI_VENDOR_ID_MICROSEMI)
   647				break;
   648	
   649			reg = ioread32(&stdev->mmio_pff_csr[i].pff_event_summary);
   650			s.pff[i] = reg;
   651		}
   652	
   653		if (copy_to_user(usum, &s, sizeof(s)))
   654			return -EFAULT;
   655	
   656		stuser->event_cnt = atomic_read(&stdev->event_cnt);
   657	
   658		return 0;
   659	}
   660	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

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