Re: [PATCH net] octeontx2-af: Fix npc_delete_flow counter read for cn20k

[kernel test robot]

Hi vmukunda,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net/main]

url:    https://github.com/intel-lab-lkp/linux/commits/vmukunda/octeontx2-af-Fix-npc_delete_flow-counter-read-for-cn20k/20261023-100112
base:   net/main
patch link:    https://lore.kernel.org/r/20261023100112.3402726-1-vmukunda%40marvell.com
patch subject: [PATCH net] octeontx2-af: Fix npc_delete_flow counter read for cn20k
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20261024/202610240855.NijJJoJD-lkp@xxxxxxxxx/config)
compiler: s390-linux-gcc (GCC) 16.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261024/202610240855.NijJJoJD-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/202610240855.NijJJoJD-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from drivers/net/ethernet/marvell/octeontx2/af/rvu.h:13,
                    from drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:11:
   drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c: In function 'rvu_mbox_handler_npc_delete_flow':
   drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:1962:58: error: 'rvu_pdev' undeclared (first use in this function)
    1962 |                                 if (blkaddr && !is_cn20k(rvu_pdev))
         |                                                          ^~~~~~~~
   include/linux/soc/marvell/silicons.h:22:41: note: in definition of macro 'is_cn20k'
      22 | #define is_cn20k(pdev)          ((void)(pdev), 0)
         |                                         ^~~~
   drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:1962:58: note: each undeclared identifier is reported only once for each function it appears in
   include/linux/soc/marvell/silicons.h:22:41: note: in definition of macro 'is_cn20k'
      22 | #define is_cn20k(pdev)          ((void)(pdev), 0)
         |                                         ^~~~
>> include/linux/soc/marvell/silicons.h:22:46: warning: left-hand operand of comma expression has no effect [-Wunused-value]
      22 | #define is_cn20k(pdev)          ((void)(pdev), 0)
         |                                              ^
   drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c:1962:49: note: in expansion of macro 'is_cn20k'
    1962 |                                 if (blkaddr && !is_cn20k(rvu_pdev))
         |                                                 ^~~~~~~~


vim +22 include/linux/soc/marvell/silicons.h

25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  12  
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  13  #define CN20K_CHIPID	0x20
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  14  /*
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  15   * Silicon check for CN20K family
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  16   */
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  17  static inline bool is_cn20k(struct pci_dev *pdev)
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  18  {
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  19  	return (pdev->subsystem_device & 0xFF) == CN20K_CHIPID;
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  20  }
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  21  #else
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11 @22  #define is_cn20k(pdev)		((void)(pdev), 0)
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  23  #endif
25d51ebf0f54f9 Subbaraya Sundeep 2025-06-11  24  

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