Re: [PATCH 1/2] firmware: stratix10-svc: Support up to N SVC clients

From: kernel test robot
Date: Tue Jun 20 2023 - 03:31:35 EST


Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.4-rc7 next-20230619]
[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/tien-sung-ang-intel-com/firmware-stratix10-svc-Support-up-to-N-SVC-clients/20230620-115443
base: linus/master
patch link: https://lore.kernel.org/r/20230620035205.1158032-1-tien.sung.ang%40intel.com
patch subject: [PATCH 1/2] firmware: stratix10-svc: Support up to N SVC clients
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20230620/202306201523.U6yvKscG-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230620/202306201523.U6yvKscG-lkp@xxxxxxxxx/reproduce)

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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306201523.U6yvKscG-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

drivers/firmware/stratix10-svc.c: In function 'stratix10_svc_free_channels':
>> drivers/firmware/stratix10-svc.c:1149:21: warning: the comparison will always evaluate as 'true' for the address of 'svc_fifo' will never be NULL [-Waddress]
1149 | if (&ctrl->chans[i].svc_fifo)
| ^
drivers/firmware/stratix10-svc.c:167:22: note: 'svc_fifo' declared here
167 | struct kfifo svc_fifo;
| ^~~~~~~~


vim +1149 drivers/firmware/stratix10-svc.c

1138
1139 static void stratix10_svc_free_channels(struct stratix10_svc_controller *ctrl)
1140 {
1141 int i;
1142
1143 for (i = 0; i < SVC_NUM_CHANNEL; i++) {
1144 if (ctrl->chans[i].task) {
1145 kthread_stop(ctrl->chans[i].task);
1146 ctrl->chans[i].task = NULL;
1147 }
1148
> 1149 if (&ctrl->chans[i].svc_fifo)
1150 kfifo_free(&ctrl->chans[i].svc_fifo);
1151 }
1152 }
1153

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