tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   ef2e9a563b0cd7965e2a1263125dcbb1c86aa6cc
commit: ba0fbe236fb8a7b992e82d6eafb03a600f5eba43 rtw88: extract: make 8822c an 
individual kernel module
date:   4 months ago
config: i386-randconfig-r034-20200913 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        git checkout ba0fbe236fb8a7b992e82d6eafb03a600f5eba43
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

All warnings (new ones prefixed by >>):

>> drivers/net/wireless/realtek/rtw88/pci.c:1477:5: warning: no previous 
>> prototype for 'rtw_pci_probe' [-Wmissing-prototypes]
    1477 | int rtw_pci_probe(struct pci_dev *pdev,
         |     ^~~~~~~~~~~~~
>> drivers/net/wireless/realtek/rtw88/pci.c:1557:6: warning: no previous 
>> prototype for 'rtw_pci_remove' [-Wmissing-prototypes]
    1557 | void rtw_pci_remove(struct pci_dev *pdev)
         |      ^~~~~~~~~~~~~~
>> drivers/net/wireless/realtek/rtw88/pci.c:1579:6: warning: no previous 
>> prototype for 'rtw_pci_shutdown' [-Wmissing-prototypes]
    1579 | void rtw_pci_shutdown(struct pci_dev *pdev)
         |      ^~~~~~~~~~~~~~~~

# 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ba0fbe236fb8a7b992e82d6eafb03a600f5eba43
git remote add linus 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ba0fbe236fb8a7b992e82d6eafb03a600f5eba43
vim +/rtw_pci_probe +1477 drivers/net/wireless/realtek/rtw88/pci.c

79066903454b0fe Yu-Yen Ting      2019-09-03  1476  
72f256c2b948622 Zong-Zhe Yang    2020-05-15 @1477  int rtw_pci_probe(struct 
pci_dev *pdev,
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1478                 const struct 
pci_device_id *id)
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1479  {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1480       struct ieee80211_hw *hw;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1481       struct rtw_dev *rtwdev;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1482       int drv_data_size;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1483       int ret;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1484  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1485       drv_data_size = 
sizeof(struct rtw_dev) + sizeof(struct rtw_pci);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1486       hw = 
ieee80211_alloc_hw(drv_data_size, &rtw_ops);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1487       if (!hw) {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1488               
dev_err(&pdev->dev, "failed to allocate hw\n");
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1489               return -ENOMEM;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1490       }
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1491  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1492       rtwdev = hw->priv;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1493       rtwdev->hw = hw;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1494       rtwdev->dev = 
&pdev->dev;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1495       rtwdev->chip = (struct 
rtw_chip_info *)id->driver_data;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1496       rtwdev->hci.ops = 
&rtw_pci_ops;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1497       rtwdev->hci.type = 
RTW_HCI_TYPE_PCIE;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1498  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1499       ret = 
rtw_core_init(rtwdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1500       if (ret)
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1501               goto 
err_release_hw;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1502  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1503       rtw_dbg(rtwdev, 
RTW_DBG_PCI,
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1504               "rtw88 pci 
probe: vendor=0x%4.04X device=0x%4.04X rev=%d\n",
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1505               pdev->vendor, 
pdev->device, pdev->revision);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1506  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1507       ret = 
rtw_pci_claim(rtwdev, pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1508       if (ret) {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1509               rtw_err(rtwdev, 
"failed to claim pci device\n");
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1510               goto 
err_deinit_core;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1511       }
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1512  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1513       ret = 
rtw_pci_setup_resource(rtwdev, pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1514       if (ret) {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1515               rtw_err(rtwdev, 
"failed to setup pci resources\n");
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1516               goto 
err_pci_declaim;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1517       }
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1518  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1519       ret = 
rtw_chip_info_setup(rtwdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1520       if (ret) {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1521               rtw_err(rtwdev, 
"failed to setup chip information\n");
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1522               goto 
err_destroy_pci;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1523       }
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1524  
474264d5a6b7db4 Yan-Hsuan Chuang 2019-10-08  1525       rtw_pci_phy_cfg(rtwdev);
474264d5a6b7db4 Yan-Hsuan Chuang 2019-10-08  1526  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1527       ret = 
rtw_register_hw(rtwdev, hw);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1528       if (ret) {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1529               rtw_err(rtwdev, 
"failed to register hw\n");
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1530               goto 
err_destroy_pci;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1531       }
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1532  
79066903454b0fe Yu-Yen Ting      2019-09-03  1533       ret = 
rtw_pci_request_irq(rtwdev, pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1534       if (ret) {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1535               
ieee80211_unregister_hw(hw);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1536               goto 
err_destroy_pci;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1537       }
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1538  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1539       return 0;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1540  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1541  err_destroy_pci:
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1542       rtw_pci_destroy(rtwdev, 
pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1543  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1544  err_pci_declaim:
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1545       rtw_pci_declaim(rtwdev, 
pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1546  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1547  err_deinit_core:
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1548       rtw_core_deinit(rtwdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1549  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1550  err_release_hw:
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1551       ieee80211_free_hw(hw);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1552  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1553       return ret;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1554  }
72f256c2b948622 Zong-Zhe Yang    2020-05-15  1555  EXPORT_SYMBOL(rtw_pci_probe);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1556  
72f256c2b948622 Zong-Zhe Yang    2020-05-15 @1557  void rtw_pci_remove(struct 
pci_dev *pdev)
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1558  {
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1559       struct ieee80211_hw *hw 
= pci_get_drvdata(pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1560       struct rtw_dev *rtwdev;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1561       struct rtw_pci *rtwpci;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1562  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1563       if (!hw)
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1564               return;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1565  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1566       rtwdev = hw->priv;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1567       rtwpci = (struct 
rtw_pci *)rtwdev->priv;
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1568  
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1569       
rtw_unregister_hw(rtwdev, hw);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1570       
rtw_pci_disable_interrupt(rtwdev, rtwpci);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1571       rtw_pci_destroy(rtwdev, 
pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1572       rtw_pci_declaim(rtwdev, 
pdev);
79066903454b0fe Yu-Yen Ting      2019-09-03  1573       
rtw_pci_free_irq(rtwdev, pdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1574       rtw_core_deinit(rtwdev);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1575       ieee80211_free_hw(hw);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1576  }
72f256c2b948622 Zong-Zhe Yang    2020-05-15  1577  
EXPORT_SYMBOL(rtw_pci_remove);
e3037485c68ec1a Yan-Hsuan Chuang 2019-04-26  1578  
72f256c2b948622 Zong-Zhe Yang    2020-05-15 @1579  void rtw_pci_shutdown(struct 
pci_dev *pdev)
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1580  {
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1581       struct ieee80211_hw *hw 
= pci_get_drvdata(pdev);
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1582       struct rtw_dev *rtwdev;
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1583       struct rtw_chip_info 
*chip;
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1584  
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1585       if (!hw)
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1586               return;
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1587  
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1588       rtwdev = hw->priv;
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1589       chip = rtwdev->chip;
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1590  
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1591       if (chip->ops->shutdown)
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1592               
chip->ops->shutdown(rtwdev);
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1593  }
72f256c2b948622 Zong-Zhe Yang    2020-05-15  1594  
EXPORT_SYMBOL(rtw_pci_shutdown);
05202746ed70ea9 Ping-Ke Shih     2020-05-12  1595  

:::::: The code at line 1477 was first introduced by commit
:::::: 72f256c2b948622cc45ff8bc0456dd6039d8fe36 rtw88: extract: export symbols 
about pci interface

:::::: TO: Zong-Zhe Yang <[email protected]>
:::::: CC: Kalle Valo <[email protected]>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

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