Re: [PATCH] fixed documentation warning about duplicate symbol

From: kernel test robot
Date: Sat Sep 30 2023 - 11:31:15 EST

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In reply to: Randy Dunlap: "Re: [PATCH] fixed documentation warning about duplicate symbol"
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Hi Abhinav,

kernel test robot noticed the following build errors:

[auto build test ERROR on usb/usb-testing]
[also build test ERROR on usb/usb-next usb/usb-linus johan-usb-serial/usb-next johan-usb-serial/usb-linus hid/for-next linus/master v6.6-rc3 next-20230929]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Abhinav/fixed-documentation-warning-about-duplicate-symbol/20230930-203554
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link: https://lore.kernel.org/r/20230930123449.1170359-1-singhabhinav9051571833%40gmail.com
patch subject: [PATCH] fixed documentation warning about duplicate symbol
config: sh-defconfig (https://download.01.org/0day-ci/archive/20230930/202309302312.Sk9H9aNZ-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309302312.Sk9H9aNZ-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309302312.Sk9H9aNZ-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

drivers/hid/usbhid/hid-core.c: In function 'usbhid_probe':
>> drivers/hid/usbhid/hid-core.c:1409:13: error: implicit declaration of function 'usb_string' [-Werror=implicit-function-declaration]
1409 | if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
| ^~~~~~~~~~
cc1: some warnings being treated as errors

vim +/usb_string +1409 drivers/hid/usbhid/hid-core.c

8c3e24065e3d37 drivers/hid/usbhid/hid-core.c Thomas Weißschuh 2022-12-22 1341
c4c259bcc27c42 drivers/hid/usbhid/hid-core.c Jiri Kosina 2009-09-15 1342 static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *id)
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1343 {
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1344 struct usb_host_interface *interface = intf->cur_altsetting;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1345 struct usb_device *dev = interface_to_usbdev(intf);
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1346 struct usbhid_device *usbhid;
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1347 struct hid_device *hid;
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1348 unsigned int n, has_in = 0;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1349 size_t len;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1350 int ret;
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1351
58037eb961f859 drivers/hid/usbhid/hid-core.c Jiri Kosina 2007-05-30 1352 dbg_hid("HID probe called for ifnum %d\n",
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1353 intf->altsetting->desc.bInterfaceNumber);
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1354
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1355 for (n = 0; n < interface->desc.bNumEndpoints; n++)
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1356 if (usb_endpoint_is_int_in(&interface->endpoint[n].desc))
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1357 has_in++;
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1358 if (!has_in) {
4291ee305e9bb0 drivers/hid/usbhid/hid-core.c Joe Perches 2010-12-09 1359 hid_err(intf, "couldn't find an input interrupt endpoint\n");
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1360 return -ENODEV;
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1361 }
131d3a7a009d56 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-11-14 1362
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1363 hid = hid_allocate_device();
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1364 if (IS_ERR(hid))
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1365 return PTR_ERR(hid);
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1366
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1367 usb_set_intfdata(intf, hid);
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1368 hid->ll_driver = &usb_hid_driver;
76483cf4d0efbc drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-09-18 1369 hid->ff_init = hid_pidff_init;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1370 #ifdef CONFIG_USB_HIDDEV
93c10132a7ac16 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-06-27 1371 hid->hiddev_connect = hiddev_connect;
c4c259bcc27c42 drivers/hid/usbhid/hid-core.c Jiri Kosina 2009-09-15 1372 hid->hiddev_disconnect = hiddev_disconnect;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1373 hid->hiddev_hid_event = hiddev_hid_event;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1374 hid->hiddev_report_event = hiddev_report_event;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1375 #endif
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1376 hid->dev.parent = &intf->dev;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1377 hid->bus = BUS_USB;
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1378 hid->vendor = le16_to_cpu(dev->descriptor.idVendor);
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1379 hid->product = le16_to_cpu(dev->descriptor.idProduct);
d5158e020c4593 drivers/hid/usbhid/hid-core.c Niels Skou Olsen 2017-10-04 1380 hid->version = le16_to_cpu(dev->descriptor.bcdDevice);
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1381 hid->name[0] = 0;
a73a63701f8f23 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-22 1382 if (intf->cur_altsetting->desc.bInterfaceProtocol ==
a73a63701f8f23 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-22 1383 USB_INTERFACE_PROTOCOL_MOUSE)
a73a63701f8f23 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-22 1384 hid->type = HID_TYPE_USBMOUSE;
6dc1418e131441 drivers/hid/usbhid/hid-core.c Tomoki Sekiyama 2011-05-23 1385 else if (intf->cur_altsetting->desc.bInterfaceProtocol == 0)
6dc1418e131441 drivers/hid/usbhid/hid-core.c Tomoki Sekiyama 2011-05-23 1386 hid->type = HID_TYPE_USBNONE;
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1387
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1388 if (dev->manufacturer)
eeeec27d682047 drivers/hid/usbhid/hid-core.c Wolfram Sang 2022-08-18 1389 strscpy(hid->name, dev->manufacturer, sizeof(hid->name));
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1390
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1391 if (dev->product) {
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1392 if (dev->manufacturer)
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1393 strlcat(hid->name, " ", sizeof(hid->name));
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1394 strlcat(hid->name, dev->product, sizeof(hid->name));
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1395 }
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1396
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1397 if (!strlen(hid->name))
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1398 snprintf(hid->name, sizeof(hid->name), "HID %04x:%04x",
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1399 le16_to_cpu(dev->descriptor.idVendor),
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1400 le16_to_cpu(dev->descriptor.idProduct));
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1401
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1402 usb_make_path(dev, hid->phys, sizeof(hid->phys));
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1403 strlcat(hid->phys, "/input", sizeof(hid->phys));
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1404 len = strlen(hid->phys);
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1405 if (len < sizeof(hid->phys) - 1)
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1406 snprintf(hid->phys + len, sizeof(hid->phys) - len,
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1407 "%d", intf->altsetting[0].desc.bInterfaceNumber);
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1408
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 @1409 if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1410 hid->uniq[0] = 0;
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1411
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1412 usbhid = kzalloc(sizeof(*usbhid), GFP_KERNEL);
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1413 if (usbhid == NULL) {
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1414 ret = -ENOMEM;
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1415 goto err;
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1416 }
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1417
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1418 hid->driver_data = usbhid;
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1419 usbhid->hid = hid;
57ab12e418ec4f drivers/hid/usbhid/hid-core.c Jiri Kosina 2010-02-17 1420 usbhid->intf = intf;
57ab12e418ec4f drivers/hid/usbhid/hid-core.c Jiri Kosina 2010-02-17 1421 usbhid->ifnum = interface->desc.bInterfaceNumber;
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1422
fde4e2f73208b8 drivers/hid/usbhid/hid-core.c Alan Stern 2010-05-07 1423 init_waitqueue_head(&usbhid->wait);
fde4e2f73208b8 drivers/hid/usbhid/hid-core.c Alan Stern 2010-05-07 1424 INIT_WORK(&usbhid->reset_work, hid_reset);
0ee32774aed648 drivers/hid/usbhid/hid-core.c Kees Cook 2017-10-04 1425 timer_setup(&usbhid->io_retry, hid_retry_timeout, 0);
fde4e2f73208b8 drivers/hid/usbhid/hid-core.c Alan Stern 2010-05-07 1426 spin_lock_init(&usbhid->lock);
0ed08faded1da0 drivers/hid/usbhid/hid-core.c Alan Stern 2020-04-22 1427 mutex_init(&usbhid->mutex);
fde4e2f73208b8 drivers/hid/usbhid/hid-core.c Alan Stern 2010-05-07 1428
85cdaf524b7dda drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1429 ret = hid_add_device(hid);
85cdaf524b7dda drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1430 if (ret) {
d458a9dfc4de24 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1431 if (ret != -ENODEV)
4291ee305e9bb0 drivers/hid/usbhid/hid-core.c Joe Perches 2010-12-09 1432 hid_err(intf, "can't add hid device: %d\n", ret);
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1433 goto err_free;
85cdaf524b7dda drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1434 }
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1435
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1436 return 0;
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1437 err_free:
3d5afd324a4bf9 drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-10-27 1438 kfree(usbhid);
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1439 err:
c500c9714011ed drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1440 hid_destroy_device(hid);
85cdaf524b7dda drivers/hid/usbhid/hid-core.c Jiri Slaby 2008-05-16 1441 return ret;
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1442 }
^1da177e4c3f41 drivers/usb/input/hid-core.c Linus Torvalds 2005-04-16 1443

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In reply to: Randy Dunlap: "Re: [PATCH] fixed documentation warning about duplicate symbol"
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