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Date: Sat, 31 Aug 2019 17:38:53 +0800
From: kbuild test robot <lkp@...el.com>
To: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc: kbuild-all@...org, Daniel Drake <dsd@...too.org>,
Ulrich Kunitz <kune@...ne-taler.de>,
Kalle Valo <kvalo@...eaurora.org>,
"David S. Miller" <davem@...emloft.net>,
linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: Re: [PATCH][next] zd1211rw: zd_usb: Use struct_size() helper
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 <lkp@...el.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 = ®s->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 <dsd@...too.org>
:::::: CC: Jeff Garzik <jeff@...zik.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
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