Hi Wei, 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/Wei-Fang/dt-bindings-net-add-compatible-string-for-i-MX95-EMDIO/20241009-181113 base: net-next/main patch link: https://lore.kernel.org/r/20241009095116.147412-6-wei.fang%40nxp.com patch subject: [PATCH net-next 05/11] net: enetc: add enetc-pf-common driver support config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20241011/202410110019.xUSLtcAC-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 70e0a7e7e6a8541bcc46908c592eed561850e416) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241011/202410110019.xUSLtcAC-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/202410110019.xUSLtcAC-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/freescale/enetc/enetc_pf_common.c:3: In file included from include/linux/fsl/enetc_mdio.h:7: In file included from include/linux/phy.h:16: In file included from include/linux/ethtool.h:18: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:10: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/net/ethernet/freescale/enetc/enetc_pf_common.c:3: In file included from include/linux/fsl/enetc_mdio.h:7: In file included from include/linux/phy.h:16: In file included from include/linux/ethtool.h:18: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/net/ethernet/freescale/enetc/enetc_pf_common.c:3: In file included from include/linux/fsl/enetc_mdio.h:7: In file included from include/linux/phy.h:16: In file included from include/linux/ethtool.h:18: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/net/ethernet/freescale/enetc/enetc_pf_common.c:3: In file included from include/linux/fsl/enetc_mdio.h:7: In file included from include/linux/phy.h:16: In file included from include/linux/ethtool.h:18: In file included from include/linux/if_ether.h:19: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ In file included from drivers/net/ethernet/freescale/enetc/enetc_pf_common.c:3: >> include/linux/fsl/enetc_mdio.h:62:18: warning: no previous prototype for function 'enetc_hw_alloc' [-Wmissing-prototypes] 62 | struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs) | ^ include/linux/fsl/enetc_mdio.h:62:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 62 | struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs) | ^ | static 8 warnings generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for MODVERSIONS Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y] Selected by [y]: - RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=y] || GCC_PLUGINS [=n]) && MODULES [=y] WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] vim +/enetc_hw_alloc +62 include/linux/fsl/enetc_mdio.h 6517798dd3432a Claudiu Manoil 2020-01-06 49 80e87442e69ba8 Andrew Lunn 2023-01-12 50 static inline int enetc_mdio_read_c22(struct mii_bus *bus, int phy_id, 80e87442e69ba8 Andrew Lunn 2023-01-12 51 int regnum) 6517798dd3432a Claudiu Manoil 2020-01-06 52 { return -EINVAL; } 80e87442e69ba8 Andrew Lunn 2023-01-12 53 static inline int enetc_mdio_write_c22(struct mii_bus *bus, int phy_id, 80e87442e69ba8 Andrew Lunn 2023-01-12 54 int regnum, u16 value) 80e87442e69ba8 Andrew Lunn 2023-01-12 55 { return -EINVAL; } 80e87442e69ba8 Andrew Lunn 2023-01-12 56 static inline int enetc_mdio_read_c45(struct mii_bus *bus, int phy_id, 80e87442e69ba8 Andrew Lunn 2023-01-12 57 int devad, int regnum) 80e87442e69ba8 Andrew Lunn 2023-01-12 58 { return -EINVAL; } 80e87442e69ba8 Andrew Lunn 2023-01-12 59 static inline int enetc_mdio_write_c45(struct mii_bus *bus, int phy_id, 80e87442e69ba8 Andrew Lunn 2023-01-12 60 int devad, int regnum, u16 value) 6517798dd3432a Claudiu Manoil 2020-01-06 61 { return -EINVAL; } 6517798dd3432a Claudiu Manoil 2020-01-06 @62 struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs) 6517798dd3432a Claudiu Manoil 2020-01-06 63 { return ERR_PTR(-EINVAL); } 6517798dd3432a Claudiu Manoil 2020-01-06 64 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
