Hi Daniel, 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/Daniel-Golle/net-phy-aquantia-allow-forcing-order-of-MDI-pairs/20240821-210717 base: net-next/main patch link: https://lore.kernel.org/r/ed46220cc4c52d630fc481c8148fc749242c368d.1724244281.git.daniel%40makrotopia.org patch subject: [PATCH net-next 2/2] net: phy: aquantia: allow forcing order of MDI pairs config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240822/202408221523.6Cc0ADf9-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 26670e7fa4f032a019d23d56c6a02926e854e8af) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240822/202408221523.6Cc0ADf9-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/202408221523.6Cc0ADf9-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/net/phy/aquantia/aquantia_main.c:15: 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:2228: include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/net/phy/aquantia/aquantia_main.c:15: 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/phy/aquantia/aquantia_main.c:15: 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/phy/aquantia/aquantia_main.c:15: 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); | ~~~~~~~~~~ ^ >> drivers/net/phy/aquantia/aquantia_main.c:483:5: warning: no previous prototype for function 'aqr107_config_mdi' [-Wmissing-prototypes] 483 | int aqr107_config_mdi(struct phy_device *phydev) | ^ drivers/net/phy/aquantia/aquantia_main.c:483:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 483 | int aqr107_config_mdi(struct phy_device *phydev) | ^ | static 8 warnings generated. vim +/aqr107_config_mdi +483 drivers/net/phy/aquantia/aquantia_main.c 482 > 483 int aqr107_config_mdi(struct phy_device *phydev) 484 { 485 struct device_node *np = phydev->mdio.dev.of_node; 486 bool force_normal, force_reverse; 487 488 force_normal = of_property_read_bool(np, "marvell,force-mdi-order-normal"); 489 force_reverse = of_property_read_bool(np, "marvell,force-mdi-order-reverse"); 490 491 if (force_normal && force_reverse) 492 return -EINVAL; 493 494 if (force_normal) 495 return phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, PMAPMD_RSVD_VEND_PROV, 496 PMAPMD_RSVD_VEND_PROV_MDI_CONF, 497 PMAPMD_RSVD_VEND_PROV_MDI_FORCE); 498 499 if (force_reverse) 500 return phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, PMAPMD_RSVD_VEND_PROV, 501 PMAPMD_RSVD_VEND_PROV_MDI_CONF, 502 PMAPMD_RSVD_VEND_PROV_MDI_REVERSE | 503 PMAPMD_RSVD_VEND_PROV_MDI_FORCE); 504 505 return 0; 506 } 507 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
