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From: kernel test robot <lkp@intel.com>
To: Azeem Shaikh <azeemshaikh38@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Valentina Manea <valentina.manea.m@gmail.com>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Kees Cook <keescook@chromium.org>
Cc: oe-kbuild-all@lists.linux.dev, linux-hardening@vger.kernel.org,
	Azeem Shaikh <azeemshaikh38@gmail.com>,
	Hongren Zheng <i@zenithal.me>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] usbip: usbip_host: Replace strlcpy with strscpy
Date: Thu, 15 Jun 2023 07:59:56 +0800	[thread overview]
Message-ID: <202306150753.vOUEonLq-lkp@intel.com> (raw)
In-Reply-To: <20230614141026.2113749-1-azeemshaikh38@gmail.com>

Hi Azeem,

kernel test robot noticed the following build warnings:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on usb/usb-next usb/usb-linus linus/master v6.4-rc6 next-20230614]
[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/Azeem-Shaikh/usbip-usbip_host-Replace-strlcpy-with-strscpy/20230614-221217
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link:    https://lore.kernel.org/r/20230614141026.2113749-1-azeemshaikh38%40gmail.com
patch subject: [PATCH v2] usbip: usbip_host: Replace strlcpy with strscpy
config: i386-randconfig-i012-20230614 (https://download.01.org/0day-ci/archive/20230615/202306150753.vOUEonLq-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build):
        git remote add usb https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
        git fetch usb usb-testing
        git checkout usb/usb-testing
        b4 shazam https://lore.kernel.org/r/20230614141026.2113749-1-azeemshaikh38@gmail.com
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/usb/usbip/

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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306150753.vOUEonLq-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/usb/usbip/stub_main.c: In function 'match_busid_store':
>> drivers/usb/usbip/stub_main.c:170:13: warning: unused variable 'len' [-Wunused-variable]
     170 |         int len;
         |             ^~~


vim +/len +170 drivers/usb/usbip/stub_main.c

4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  166  
cc3d53def83a99 drivers/usb/usbip/stub_main.c     Greg Kroah-Hartman 2017-06-09  167  static ssize_t match_busid_store(struct device_driver *dev, const char *buf,
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  168  				 size_t count)
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  169  {
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09 @170  	int len;
e913397202b755 drivers/staging/usbip/stub_main.c Kay Sievers        2008-10-30  171  	char busid[BUSID_SIZE];
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  172  
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  173  	if (count < 5)
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  174  		return -EINVAL;
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  175  
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  176  	/* busid needs to include \0 termination */
7e5b2b663aa01a drivers/usb/usbip/stub_main.c     Azeem Shaikh       2023-06-14  177  	if (strscpy(busid, buf + 4, BUSID_SIZE) < 0)
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  178  		return -EINVAL;
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  179  
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  180  	if (!strncmp(buf, "add ", 4)) {
2183b77ece517f drivers/staging/usbip/stub_main.c Kurt Kanzenbach    2013-04-04  181  		if (add_match_busid(busid) < 0)
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  182  			return -ENOMEM;
2183b77ece517f drivers/staging/usbip/stub_main.c Kurt Kanzenbach    2013-04-04  183  
1a4b6f66285785 drivers/staging/usbip/stub_main.c matt mooney        2011-05-19  184  		pr_debug("add busid %s\n", busid);
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  185  		return count;
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  186  	}
2183b77ece517f drivers/staging/usbip/stub_main.c Kurt Kanzenbach    2013-04-04  187  
2183b77ece517f drivers/staging/usbip/stub_main.c Kurt Kanzenbach    2013-04-04  188  	if (!strncmp(buf, "del ", 4)) {
2183b77ece517f drivers/staging/usbip/stub_main.c Kurt Kanzenbach    2013-04-04  189  		if (del_match_busid(busid) < 0)
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  190  			return -ENODEV;
2183b77ece517f drivers/staging/usbip/stub_main.c Kurt Kanzenbach    2013-04-04  191  
1a4b6f66285785 drivers/staging/usbip/stub_main.c matt mooney        2011-05-19  192  		pr_debug("del busid %s\n", busid);
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  193  		return count;
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  194  	}
2183b77ece517f drivers/staging/usbip/stub_main.c Kurt Kanzenbach    2013-04-04  195  
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  196  	return -EINVAL;
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  197  }
cc3d53def83a99 drivers/usb/usbip/stub_main.c     Greg Kroah-Hartman 2017-06-09  198  static DRIVER_ATTR_RW(match_busid);
4d7b5c7f8ad49b drivers/staging/usbip/stub_main.c Takahiro Hirofuchi 2008-07-09  199  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

  parent reply	other threads:[~2023-06-15  0:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-14 14:10 [PATCH v2] usbip: usbip_host: Replace strlcpy with strscpy Azeem Shaikh
2023-06-14 15:02 ` Shuah Khan
2023-06-14 17:48 ` Kees Cook
2023-06-14 23:59 ` kernel test robot [this message]
2023-06-15  9:33 ` Greg Kroah-Hartman
2023-06-15 18:08   ` Azeem Shaikh

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