linux-kernel - Re: [PATCH 2/2] net: Add DM9051 driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <202112090508.QK50XeZi-lkp@intel.com>
Date:   Thu, 9 Dec 2021 05:09:48 +0800
From:   kernel test robot <lkp@...el.com>
To:     Joseph CHANG <josright123@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] net: Add DM9051 driver

Hi Joseph,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on ce83278f313ce65a9bbd780a3e07fa3f62d82525]

url:    https://github.com/0day-ci/linux/commits/Joseph-CHANG/ADD-DM9051-NET-DEVICE/20211208-193833
base:   ce83278f313ce65a9bbd780a3e07fa3f62d82525
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20211209/202112090508.QK50XeZi-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/9ee7a9a16698431c764b4b21a0839e87f3692078
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Joseph-CHANG/ADD-DM9051-NET-DEVICE/20211208-193833
        git checkout 9ee7a9a16698431c764b4b21a0839e87f3692078
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   drivers/net/ethernet/davicom/dm9051.c: In function 'dm9051_read_mac_to_dev':
>> drivers/net/ethernet/davicom/dm9051.c:255:35: error: assignment of read-only location '*(ndev->dev_addr + (sizetype)i)'
     255 |                 ndev->dev_addr[i] = ior(db, DM9051_PAR + i);
         |                                   ^
   drivers/net/ethernet/davicom/dm9051.c:260:43: error: assignment of read-only location '*(ndev->dev_addr + (sizetype)i)'
     260 |                         ndev->dev_addr[i] = ior(db, DM9051_PAR + i);
         |                                           ^
   drivers/net/ethernet/davicom/dm9051.c: In function 'dm_set_mac_lock':
   drivers/net/ethernet/davicom/dm9051.c:341:57: warning: passing argument 3 of 'dm_write_eeprom_func' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     341 |                         dm_write_eeprom_func(db, i / 2, &ndev->dev_addr[i]);
         |                                                         ^~~~~~~~~~~~~~~~~~
   drivers/net/ethernet/davicom/dm9051.c:156:73: note: expected 'u8 *' {aka 'unsigned char *'} but argument is of type 'const unsigned char *'
     156 | static void dm_write_eeprom_func(struct board_info *db, int offset, u8 *data)
         |                                                                     ~~~~^~~~


vim +255 drivers/net/ethernet/davicom/dm9051.c

   245	
   246	/* functions process mac address is major from EEPROM
   247	 */
   248	static int dm9051_read_mac_to_dev(struct device *dev, struct net_device *ndev,
   249					  struct board_info *db)
   250	{
   251		int i;
   252		u8 mac_fix[ETH_ALEN] = { 0x00, 0x60, 0x6e, 0x90, 0x51, 0xee };
   253	
   254		for (i = 0; i < ETH_ALEN; i++)
 > 255			ndev->dev_addr[i] = ior(db, DM9051_PAR + i);
   256		if (!is_valid_ether_addr(ndev->dev_addr)) {
   257			for (i = 0; i < ETH_ALEN; i++)
   258				iow(db, DM9051_PAR + i, mac_fix[i]);
   259			for (i = 0; i < ETH_ALEN; i++)
   260				ndev->dev_addr[i] = ior(db, DM9051_PAR + i);
   261			dev_info(dev, "dm9 [reg_netdev][%s][chip MAC: %pM (%s)]\n",
   262				 ndev->name, ndev->dev_addr, "FIX-1");
   263			return 0;
   264		}
   265		return 1;
   266	}
   267	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org