tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4d0515b235dec789578d135a5db586b25c5870cb commit: b0377116decdeecb8c6a928d59cd4bea00a4af6e [11468/12451] net: ethernet: Use device_get_match_data() config: hexagon-randconfig-r005-20221019 (https://download.01.org/0day-ci/archive/20231017/202310170627.2Kvf6ZHY-lkp@xxxxxxxxx/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231017/202310170627.2Kvf6ZHY-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/202310170627.2Kvf6ZHY-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/net/ethernet/apm/xgene/xgene_enet_main.c:11: In file included from drivers/net/ethernet/apm/xgene/xgene_enet_main.h:15: In file included from include/linux/efi.h:20: In file included from include/linux/rtc.h:17: In file included from include/linux/interrupt.h:11: 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:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 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' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/net/ethernet/apm/xgene/xgene_enet_main.c:11: In file included from drivers/net/ethernet/apm/xgene/xgene_enet_main.h:15: In file included from include/linux/efi.h:20: In file included from include/linux/rtc.h:17: In file included from include/linux/interrupt.h:11: 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:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 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' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/net/ethernet/apm/xgene/xgene_enet_main.c:11: In file included from drivers/net/ethernet/apm/xgene/xgene_enet_main.h:15: In file included from include/linux/efi.h:20: In file included from include/linux/rtc.h:17: In file included from include/linux/interrupt.h:11: 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:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ >> drivers/net/ethernet/apm/xgene/xgene_enet_main.c:2004:34: warning: unused variable 'xgene_enet_of_match' [-Wunused-const-variable] static const struct of_device_id xgene_enet_of_match[] = { ^ 7 warnings generated. vim +/xgene_enet_of_match +2004 drivers/net/ethernet/apm/xgene/xgene_enet_main.c 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2003 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 @2004 static const struct of_device_id xgene_enet_of_match[] = { 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2005 {.compatible = "apm,xgene-enet", .data = (void *)XGENE_ENET1}, 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2006 {.compatible = "apm,xgene1-sgenet", .data = (void *)XGENE_ENET1}, 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2007 {.compatible = "apm,xgene1-xgenet", .data = (void *)XGENE_ENET1}, 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2008 {.compatible = "apm,xgene2-sgenet", .data = (void *)XGENE_ENET2}, 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2009 {.compatible = "apm,xgene2-xgenet", .data = (void *)XGENE_ENET2}, 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2010 {}, 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2011 }; 1f3d62090d3ba4 Arnd Bergmann 2017-02-01 2012 :::::: The code at line 2004 was first introduced by commit :::::: 1f3d62090d3ba4d0c14e5271be87812fc577b197 xgene_enet: remove bogus forward declarations :::::: TO: Arnd Bergmann <arnd@xxxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
