Re: [PATCH] rtl8712: add a check for the status of register_netdev

From: kbuild test robot
Date: Tue Dec 25 2018 - 21:32:24 EST


Hi Kangjie,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.20 next-20181224]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Kangjie-Lu/rtl8712-add-a-check-for-the-status-of-register_netdev/20181226-094828
config: xtensa-allmodconfig (attached as .config)
compiler: xtensa-linux-gcc (GCC) 8.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
GCC_VERSION=8.1.0 make.cross ARCH=xtensa

All errors (new ones prefixed by >>):

In file included from include/linux/usb/ch9.h:36,
from include/linux/usb.h:6,
from drivers/staging/rtl8712/hal_init.c:19:
drivers/staging/rtl8712/hal_init.c: In function 'rtl871x_load_fw_cb':
>> drivers/staging/rtl8712/hal_init.c:49:12: error: 'udev' undeclared (first use in this function); did you mean 'cdev'?
dev_err(&udev->dev, "r8712u: Registering netdev failed\n");
^~~~
include/linux/device.h:1453:11: note: in definition of macro 'dev_err'
_dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~
drivers/staging/rtl8712/hal_init.c:49:12: note: each undeclared identifier is reported only once for each function it appears in
dev_err(&udev->dev, "r8712u: Registering netdev failed\n");
^~~~
include/linux/device.h:1453:11: note: in definition of macro 'dev_err'
_dev_err(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~

vim +49 drivers/staging/rtl8712/hal_init.c

18
> 19 #include <linux/usb.h>
20 #include <linux/device.h>
21 #include <linux/usb/ch9.h>
22 #include <linux/firmware.h>
23 #include <linux/module.h>
24
25 #include "osdep_service.h"
26 #include "drv_types.h"
27 #include "usb_osintf.h"
28
29 #define FWBUFF_ALIGN_SZ 512
30 #define MAX_DUMP_FWSZ 49152 /*default = 49152 (48k)*/
31
32 static void rtl871x_load_fw_cb(const struct firmware *firmware, void *context)
33 {
34 struct _adapter *padapter = context;
35
36 complete(&padapter->rtl8712_fw_ready);
37 if (!firmware) {
38 struct usb_device *udev = padapter->dvobjpriv.pusbdev;
39 struct usb_interface *pusb_intf = padapter->pusb_intf;
40
41 dev_err(&udev->dev, "r8712u: Firmware request failed\n");
42 usb_put_dev(udev);
43 usb_set_intfdata(pusb_intf, NULL);
44 return;
45 }
46 padapter->fw = firmware;
47 /* firmware available - start netdev */
48 if (register_netdev(padapter->pnetdev))
> 49 dev_err(&udev->dev, "r8712u: Registering netdev failed\n");
50 }
51

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