Hi Dong,

FYI, the error/warning still remains.

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 4672b15ea0310686f657dc38c95b8c90663590c0 commit: 6adab536d69347a10c2366aaf6b86de963d5994b [1455/1455] drivers: initial support for rnpvf drivers from Mucse Technology config: x86_64-randconfig-003-20241112 (https://download.01.org/0day-ci/archive/20241203/202412031516.G3dwLO6q-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241203/202412031516.G3dwLO6q-lkp@i...)

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@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202412031516.G3dwLO6q-lkp@intel.com/

All errors (new ones prefixed by >>):

| ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:127:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 127 | void rnpvf_unmap_and_free_tx_resource(struct rnpvf_ring *ring, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:1365:6: warning: no previous prototype for function 'rnpvf_alloc_rx_buffers' [-Wmissing-prototypes] 1365 | void rnpvf_alloc_rx_buffers(struct rnpvf_ring *rx_ring, u16 cleaned_count) | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:1365:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1365 | void rnpvf_alloc_rx_buffers(struct rnpvf_ring *rx_ring, u16 cleaned_count) | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:1659:7: warning: variable 'xdp_xmit' set but not used [-Wunused-but-set-variable] 1659 | bool xdp_xmit = false; | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:1945:6: warning: no previous prototype for function 'update_rx_count' [-Wmissing-prototypes] 1945 | void update_rx_count(int cleaned, struct rnpvf_q_vector *q_vector) | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:1945:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1945 | void update_rx_count(int cleaned, struct rnpvf_q_vector *q_vector) | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2420:6: warning: no previous prototype for function 'rnpvf_write_eitr_rx' [-Wmissing-prototypes] 2420 | void rnpvf_write_eitr_rx(struct rnpvf_q_vector *q_vector) | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2420:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2420 | void rnpvf_write_eitr_rx(struct rnpvf_q_vector *q_vector) | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2523:6: warning: no previous prototype for function 'rnpvf_configure_tx_ring' [-Wmissing-prototypes] 2523 | void rnpvf_configure_tx_ring(struct rnpvf_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2523:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2523 | void rnpvf_configure_tx_ring(struct rnpvf_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2589:6: warning: no previous prototype for function 'rnpvf_disable_rx_queue' [-Wmissing-prototypes] 2589 | void rnpvf_disable_rx_queue(struct rnpvf_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2589:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2589 | void rnpvf_disable_rx_queue(struct rnpvf_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2595:6: warning: no previous prototype for function 'rnpvf_enable_rx_queue' [-Wmissing-prototypes] 2595 | void rnpvf_enable_rx_queue(struct rnpvf_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2595:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2595 | void rnpvf_enable_rx_queue(struct rnpvf_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2601:6: warning: no previous prototype for function 'rnpvf_configure_rx_ring' [-Wmissing-prototypes] 2601 | void rnpvf_configure_rx_ring(struct rnpvf_adapter *adapter, | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2601:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 2601 | void rnpvf_configure_rx_ring(struct rnpvf_adapter *adapter, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:2736:6: warning: variable 'err' set but not used [-Wunused-but-set-variable] 2736 | int err = -EOPNOTSUPP; | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:3307:6: warning: variable 'vector_threshold' set but not used [-Wunused-but-set-variable] 3307 | int vector_threshold; | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:3456:19: warning: variable 'hw' set but not used [-Wunused-but-set-variable] 3456 | struct rnpvf_hw *hw; | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:4590:6: warning: no previous prototype for function 'rnpvf_tx_ctxtdesc' [-Wmissing-prototypes] 4590 | void rnpvf_tx_ctxtdesc(struct rnpvf_ring *tx_ring, u16 mss_seg_len, | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:4590:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 4590 | void rnpvf_tx_ctxtdesc(struct rnpvf_ring *tx_ring, u16 mss_seg_len, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5039:6: warning: no previous prototype for function 'rnpvf_maybe_tx_ctxtdesc' [-Wmissing-prototypes] 5039 | void rnpvf_maybe_tx_ctxtdesc(struct rnpvf_ring *tx_ring, | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5039:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 5039 | void rnpvf_maybe_tx_ctxtdesc(struct rnpvf_ring *tx_ring, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5089:13: warning: no previous prototype for function 'rnpvf_xmit_frame_ring' [-Wmissing-prototypes] 5089 | netdev_tx_t rnpvf_xmit_frame_ring(struct sk_buff *skb, | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5089:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 5089 | netdev_tx_t rnpvf_xmit_frame_ring(struct sk_buff *skb, | ^ | static drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5484:6: warning: variable 'ring_csum_err' set but not used [-Wunused-but-set-variable] 5484 | u64 ring_csum_err = 0; | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5485:6: warning: variable 'ring_csum_good' set but not used [-Wunused-but-set-variable] 5485 | u64 ring_csum_good = 0; | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5580:6: warning: no previous prototype for function 'rnpvf_assign_netdev_ops' [-Wmissing-prototypes] 5580 | void rnpvf_assign_netdev_ops(struct net_device *dev) | ^ drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5580:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 5580 | void rnpvf_assign_netdev_ops(struct net_device *dev) | ^ | static

...

drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c:5599:32: error: called object type 'int' is not a function or function pointer

5599 | v = rd32(hw, RNP_DMA_RX_START(ring)); | ~~~~~~~~~~~~~~~~^ drivers/net/ethernet/mucse/rnpvf/rnpvf_regs.h:116:53: note: expanded from macro 'rd32' 116 | #define rd32(hw, off) rnpvf_rd_reg((hw)->hw_addr + (off)) | ^~~ drivers/net/ethernet/mucse/rnpvf/rnpvf_regs.h:104:42: note: expanded from macro 'rnpvf_rd_reg' 104 | #define rnpvf_rd_reg(reg) readl((void *)(reg)) | ^~~ 19 warnings and 1 error generated.

vim +/int +5599 drivers/net/ethernet/mucse/rnpvf/rnpvf_main.c

5587 5588 static u8 rnpvf_vfnum(struct rnpvf_hw *hw) 5589 { 5590 u16 vf_num = -1; 5591 u32 pfvfnum_reg; 5592 5593 #if CONFIG_BAR4_PFVFNUM 5594 int ring, v; 5595 u16 func = 0; 5596 5597 func = ((hw->pdev->devfn & 0x1) ? 1 : 0); 5598 for (ring = 0; ring < 128; ring += 2) {

5599 v = rd32(hw, RNP_DMA_RX_START(ring));

5600 if ((v & 0xFFFF) == hw->pdev->vendor) { 5601 continue; 5602 } else { 5603 vf_num = (1 << 7) /*vf-active*/ | 5604 (func << 6) /*pf*/ | (ring / 2) /*vfnum*/; 5605 break; 5606 } 5607 } 5608 return vf_num; 5609 #else 5610 pfvfnum_reg = 5611 (VF_NUM_REG_N10 & (pci_resource_len(hw->pdev, 0) - 1)); 5612 vf_num = readl(hw->hw_addr_bar0 + pfvfnum_reg); 5613 #define VF_NUM_MASK_TEMP (0xff0) 5614 #define VF_NUM_OFF (4) 5615 return ((vf_num & VF_NUM_MASK_TEMP) >> VF_NUM_OFF); 5616 #endif 5617 } 5618