Re: [PATCH net-next v1 1/4] octeon_ep: add PF-VF mailbox communication
From: kernel test robot
Date: Fri Dec 08 2023 - 12:30:22 EST
Hi Shinas,
kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Shinas-Rasheed/octeon_ep-add-PF-VF-mailbox-communication/20231208-150756
base: net-next/main
patch link: https://lore.kernel.org/r/20231208070352.2606192-2-srasheed%40marvell.com
patch subject: [PATCH net-next v1 1/4] octeon_ep: add PF-VF mailbox communication
config: x86_64-randconfig-121-20231208 (https://download.01.org/0day-ci/archive/20231209/202312090134.EZuetV2i-lkp@xxxxxxxxx/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231209/202312090134.EZuetV2i-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/202312090134.EZuetV2i-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
drivers/net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c: In function 'octep_poll_pfvf_mailbox_cnxk_pf':
>> drivers/net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c:406:6: warning: variable 'handled' set but not used [-Wunused-but-set-variable]
int handled = 0;
^~~~~~~
vim +/handled +406 drivers/net/ethernet/marvell/octeon_ep/octep_cnxk_pf.c
401
402 static void octep_poll_pfvf_mailbox_cnxk_pf(struct octep_device *oct)
403 {
404 u32 vf, active_vfs, active_rings_per_vf, vf_mbox_queue;
405 u64 reg0;
> 406 int handled = 0;
407
408 reg0 = octep_read_csr64(oct, CNXK_SDP_EPF_MBOX_RINT(0));
409 if (reg0) {
410 active_vfs = CFG_GET_ACTIVE_VFS(oct->conf);
411 active_rings_per_vf = CFG_GET_ACTIVE_RPVF(oct->conf);
412 for (vf = 0; vf < active_vfs; vf++) {
413 vf_mbox_queue = vf * active_rings_per_vf;
414 if (!(reg0 & (0x1UL << vf_mbox_queue)))
415 continue;
416
417 if (!oct->mbox[vf_mbox_queue]) {
418 dev_err(&oct->pdev->dev, "bad mbox vf %d\n", vf);
419 continue;
420 }
421 schedule_work(&oct->mbox[vf_mbox_queue]->wk.work);
422 }
423 if (reg0)
424 octep_write_csr64(oct, CNXK_SDP_EPF_MBOX_RINT(0), reg0);
425
426 handled = 1;
427 }
428 }
429
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki