Hi "Gustavo,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[cannot apply to v5.3-rc6 next-20190830]
[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/Gustavo-A-R-Silva/zd1211rw-zd_usb-Use-struct_size-helper/20190831-161121
config: mips-allmodconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 7.4.0
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=7.4.0 make.cross ARCH=mips 

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

All warnings (new ones prefixed by >>):

   In file included from drivers/net/wireless/zydas/zd1211rw/zd_usb.c:22:0:
   drivers/net/wireless/zydas/zd1211rw/zd_usb.c: In function 'check_read_regs':
>> drivers/net/wireless/zydas/zd1211rw/zd_def.h:18:25: warning: format '%ld' 
>> expects argument of type 'long int', but argument 6 has type 'size_t {aka 
>> unsigned int}' [-Wformat=]
     dev_printk(level, dev, "%s() " fmt, __func__, ##args)
                            ^
>> drivers/net/wireless/zydas/zd1211rw/zd_def.h:22:4: note: in expansion of 
>> macro 'dev_printk_f'
       dev_printk_f(KERN_DEBUG, dev, fmt, ## args)
       ^~~~~~~~~~~~
>> drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1635:3: note: in expansion of 
>> macro 'dev_dbg_f'
      dev_dbg_f(zd_usb_dev(usb),
      ^~~~~~~~~
   drivers/net/wireless/zydas/zd1211rw/zd_usb.c:1636:51: note: format string is 
defined here
        "error: actual length %d less than expected %ld\n",
                                                    ~~^
                                                    %d

vim +/dev_dbg_f +1635 drivers/net/wireless/zydas/zd1211rw/zd_usb.c

e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1622  
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1623  static bool check_read_regs(struct zd_usb *usb, struct 
usb_req_read_regs *req,
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1624                            unsigned int count)
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1625  {
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1626        int i;
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1627        struct zd_usb_interrupt *intr = &usb->intr;
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1628        struct read_regs_int *rr = &intr->read_regs;
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1629        struct usb_int_regs *regs = (struct usb_int_regs 
*)rr->buffer;
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1630  
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1631        /* The created block size seems to be larger than 
expected.
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1632         * However results appear to be correct.
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1633         */
d352eeccec7e84 drivers/net/wireless/zydas/zd1211rw/zd_usb.c Gustavo A. R. Silva 
2019-08-30  1634        if (rr->length < struct_size(regs, regs, count)) {
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02 @1635                dev_dbg_f(zd_usb_dev(usb),
d352eeccec7e84 drivers/net/wireless/zydas/zd1211rw/zd_usb.c Gustavo A. R. Silva 
2019-08-30  1636                         "error: actual length %d less than 
expected %ld\n",
d352eeccec7e84 drivers/net/wireless/zydas/zd1211rw/zd_usb.c Gustavo A. R. Silva 
2019-08-30  1637                         rr->length, struct_size(regs, regs, 
count));
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1638                return false;
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1639        }
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1640  
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1641        if (rr->length > sizeof(rr->buffer)) {
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1642                dev_dbg_f(zd_usb_dev(usb),
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1643                         "error: actual length %d exceeds 
buffer size %zu\n",
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1644                         rr->length, sizeof(rr->buffer));
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1645                return false;
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1646        }
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1647  
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1648        for (i = 0; i < count; i++) {
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1649                struct reg_data *rd = &regs->regs[i];
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1650                if (rd->addr != req->addr[i]) {
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1651                        dev_dbg_f(zd_usb_dev(usb),
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1652                                 "rd[%d] addr %#06hx expected 
%#06hx\n", i,
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1653                                 le16_to_cpu(rd->addr),
e85d0918b54fbd drivers/net/wireless/zd1211rw/zd_usb.c       Daniel Drake        
2006-06-02  1654                                 le16_to_cpu(req->addr[i]));
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1655                        return false;
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1656                }
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1657        }
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1658  
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1659        return true;
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1660  }
c900eff30a14ec drivers/net/wireless/zd1211rw/zd_usb.c       Jussi Kivilinna     
2011-06-20  1661  

:::::: The code at line 1635 was first introduced by commit
:::::: e85d0918b54fbd9b38003752f7d665416b06edd8 [PATCH] ZyDAS ZD1211 USB-WLAN 
driver

:::::: TO: Daniel Drake <d...@gentoo.org>
:::::: CC: Jeff Garzik <j...@garzik.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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