netdev - Re: [PATCH net-next 09/11] qed: implement devlink dump

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Date:   Tue, 28 Jul 2020 04:40:07 +0800
From:   kernel test robot <lkp@...el.com>
To:     Igor Russkikh <irusskikh@...vell.com>, netdev@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Ariel Elior <aelior@...vell.com>,
        Michal Kalderon <mkalderon@...vell.com>,
        Igor Russkikh <irusskikh@...vell.com>,
        Alexander Lobakin <alobakin@...vell.com>
Subject: Re: [PATCH net-next 09/11] qed: implement devlink dump

Hi Igor,

I love your patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Igor-Russkikh/qed-introduce-devlink-health-support/20200728-024531
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git a57066b1a01977a646145f4ce8dfb4538b08368a
config: mips-allyesconfig (attached as .config)
compiler: mips-linux-gcc (GCC) 9.3.0
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
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips 

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

All error/warnings (new ones prefixed by >>):

   drivers/net/ethernet/qlogic/qed/qed_devlink.c: In function 'qed_fw_fatal_reporter_dump':
>> drivers/net/ethernet/qlogic/qed/qed_devlink.c:53:19: error: implicit declaration of function 'vzalloc'; did you mean 'kvzalloc'? [-Werror=implicit-function-declaration]
      53 |  p_dbg_data_buf = vzalloc(dbg_data_buf_size);
         |                   ^~~~~~~
         |                   kvzalloc
>> drivers/net/ethernet/qlogic/qed/qed_devlink.c:53:17: warning: assignment to 'u8 *' {aka 'unsigned char *'} from 'int' makes pointer from integer without a cast [-Wint-conversion]
      53 |  p_dbg_data_buf = vzalloc(dbg_data_buf_size);
         |                 ^
>> drivers/net/ethernet/qlogic/qed/qed_devlink.c:63:3: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration]
      63 |   vfree(p_dbg_data_buf);
         |   ^~~~~
         |   kvfree
   cc1: some warnings being treated as errors

vim +53 drivers/net/ethernet/qlogic/qed/qed_devlink.c

    33	
    34	static int
    35	qed_fw_fatal_reporter_dump(struct devlink_health_reporter *reporter,
    36				   struct devlink_fmsg *fmsg, void *priv_ctx,
    37				   struct netlink_ext_ack *extack)
    38	{
    39		struct qed_devlink *qdl = devlink_health_reporter_priv(reporter);
    40		struct qed_fw_fatal_ctx *fw_fatal_ctx = priv_ctx;
    41		struct qed_dev *cdev = qdl->cdev;
    42		u32 dbg_data_buf_size;
    43		u8 *p_dbg_data_buf;
    44		int err;
    45	
    46		/* Having context means that was a dump request after fatal,
    47		 * so we enable extra debugging while gathering the dump,
    48		 * just in case
    49		 */
    50		cdev->print_dbg_data = fw_fatal_ctx ? true : false;
    51	
    52		dbg_data_buf_size = qed_dbg_all_data_size(cdev);
  > 53		p_dbg_data_buf = vzalloc(dbg_data_buf_size);
    54		if (!p_dbg_data_buf) {
    55			DP_NOTICE(cdev,
    56				  "Failed to allocate memory for a debug data buffer\n");
    57			return -ENOMEM;
    58		}
    59	
    60		err = qed_dbg_all_data(cdev, p_dbg_data_buf);
    61		if (err) {
    62			DP_NOTICE(cdev, "Failed to obtain debug data\n");
  > 63			vfree(p_dbg_data_buf);
    64			return err;
    65		}
    66	
    67		err = devlink_fmsg_binary_pair_put(fmsg, "dump_data",
    68						   p_dbg_data_buf, dbg_data_buf_size);
    69	
    70		vfree(p_dbg_data_buf);
    71	
    72		return err;
    73	}
    74	

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

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