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Message-ID: <202009132352.cN4c9rTC%lkp@intel.com>
Date:   Sun, 13 Sep 2020 23:42:55 +0800
From:   kernel test robot <lkp@...el.com>
To:     Zong-Zhe Yang <kevin_yang@...ltek.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Kalle Valo <kvalo@...eaurora.org>,
        Yan-Hsuan Chuang <yhchuang@...ltek.com>
Subject: drivers/net/wireless/realtek/rtw88/pci.c:1477:5: warning: no
 previous prototype for 'rtw_pci_probe'

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 <lkp@...el.com>

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 <kevin_yang@...ltek.com>
:::::: CC: Kalle Valo <kvalo@...eaurora.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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