linux-kernel - Re: [PATCH] net: atlantic: fix aq

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Date:   Fri, 5 Aug 2022 22:53:51 +0800
From:   kernel test robot <lkp@...el.com>
To:     AceLan Kao <acelan.kao@...onical.com>,
        Igor Russkikh <irusskikh@...vell.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Dmitrii Tarakanov <Dmitrii.Tarakanov@...antia.com>,
        Alexander Loktionov <Alexander.Loktionov@...antia.com>,
        David VomLehn <vomlehn@...as.net>,
        Dmitry Bezrukov <Dmitry.Bezrukov@...antia.com>,
        linux-kernel@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, netdev@...r.kernel.org
Subject: Re: [PATCH] net: atlantic: fix aq_vec index out of range error

Hi AceLan,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on net-next/master]
[also build test WARNING on net/master linus/master horms-ipvs/master v5.19 next-20220804]
[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/AceLan-Kao/net-atlantic-fix-aq_vec-index-out-of-range-error/20220805-173434
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git f86d1fbbe7858884d6754534a0afbb74fc30bc26
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220805/202208052211.yWBUaHIc-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/23a65a8ebdb1e74cf7fc03a89741246de646622b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review AceLan-Kao/net-atlantic-fix-aq_vec-index-out-of-range-error/20220805-173434
        git checkout 23a65a8ebdb1e74cf7fc03a89741246de646622b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/ethernet/aquantia/atlantic/

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

All warnings (new ones prefixed by >>):

   drivers/net/ethernet/aquantia/atlantic/aq_nic.c: In function 'aq_nic_polling_timer_cb':
>> drivers/net/ethernet/aquantia/atlantic/aq_nic.c:268:26: warning: variable 'aq_vec' set but not used [-Wunused-but-set-variable]
     268 |         struct aq_vec_s *aq_vec = NULL;
         |                          ^~~~~~
   drivers/net/ethernet/aquantia/atlantic/aq_nic.c: In function 'aq_nic_stop':
   drivers/net/ethernet/aquantia/atlantic/aq_nic.c:1384:26: warning: variable 'aq_vec' set but not used [-Wunused-but-set-variable]
    1384 |         struct aq_vec_s *aq_vec = NULL;
         |                          ^~~~~~


vim +/aq_vec +268 drivers/net/ethernet/aquantia/atlantic/aq_nic.c

97bde5c4f909a55a David VomLehn         2017-01-23  264  
e99e88a9d2b06746 Kees Cook             2017-10-16  265  static void aq_nic_polling_timer_cb(struct timer_list *t)
97bde5c4f909a55a David VomLehn         2017-01-23  266  {
e99e88a9d2b06746 Kees Cook             2017-10-16  267  	struct aq_nic_s *self = from_timer(self, t, polling_timer);
97bde5c4f909a55a David VomLehn         2017-01-23 @268  	struct aq_vec_s *aq_vec = NULL;
97bde5c4f909a55a David VomLehn         2017-01-23  269  	unsigned int i = 0U;
97bde5c4f909a55a David VomLehn         2017-01-23  270  
97bde5c4f909a55a David VomLehn         2017-01-23  271  	for (i = 0U, aq_vec = self->aq_vec[0];
23a65a8ebdb1e74c Chia-Lin Kao (AceLan  2022-08-05  272) 		self->aq_vecs > i; ++i)
23a65a8ebdb1e74c Chia-Lin Kao (AceLan  2022-08-05  273) 		aq_vec_isr(i, (void *)self->aq_vec[i]);
97bde5c4f909a55a David VomLehn         2017-01-23  274  
97bde5c4f909a55a David VomLehn         2017-01-23  275  	mod_timer(&self->polling_timer, jiffies +
97bde5c4f909a55a David VomLehn         2017-01-23  276  		  AQ_CFG_POLLING_TIMER_INTERVAL);
97bde5c4f909a55a David VomLehn         2017-01-23  277  }
97bde5c4f909a55a David VomLehn         2017-01-23  278  

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