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charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Hi Haiyue, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 330f4c53d3c2d8b11d86ec03a964b86dc81452f5 commit: 527691bf0682d7ddcca77fc17dabd2fa090572ff iavf: Support IPv4 Flow Director filters date: 12 months ago config: riscv-buildonly-randconfig-r006-20220307 (https://download.01.org/0day-ci/archive/20220309/202203091354.zyyOqu49-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=527691bf0682d7ddcca77fc17dabd2fa090572ff git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 527691bf0682d7ddcca77fc17dabd2fa090572ff # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/net/ethernet/intel/iavf/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): #define inw(c) ({ u16 __v; __io_pbr(); __v = readw_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) ~~~~~~~~~~ ^ arch/riscv/include/asm/mmio.h:88:76: note: expanded from macro 'readw_cpu' #define readw_cpu(c) ({ u16 __r = le16_to_cpu((__force __le16)__raw_readw(c)); __r; }) ^ include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/net/ethernet/intel/iavf/iavf_fdir.c:6: In file included from drivers/net/ethernet/intel/iavf/iavf.h:8: In file included from include/linux/pci.h:38: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/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/riscv/include/asm/io.h:149: include/asm-generic/io.h:572:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return inl(addr); ^~~~~~~~~ arch/riscv/include/asm/io.h:57:76: note: expanded from macro 'inl' #define inl(c) ({ u32 __v; __io_pbr(); __v = readl_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) ~~~~~~~~~~ ^ arch/riscv/include/asm/mmio.h:89:76: note: expanded from macro 'readl_cpu' #define readl_cpu(c) ({ u32 __r = le32_to_cpu((__force __le32)__raw_readl(c)); __r; }) ^ include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/net/ethernet/intel/iavf/iavf_fdir.c:6: In file included from drivers/net/ethernet/intel/iavf/iavf.h:8: In file included from include/linux/pci.h:38: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/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/riscv/include/asm/io.h:149: include/asm-generic/io.h:580:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] outb(value, addr); ^~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:59:68: note: expanded from macro 'outb' #define outb(v,c) ({ __io_pbw(); writeb_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); }) ~~~~~~~~~~ ^ arch/riscv/include/asm/mmio.h:91:52: note: expanded from macro 'writeb_cpu' #define writeb_cpu(v, c) ((void)__raw_writeb((v), (c))) ^ In file included from drivers/net/ethernet/intel/iavf/iavf_fdir.c:6: In file included from drivers/net/ethernet/intel/iavf/iavf.h:8: In file included from include/linux/pci.h:38: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/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/riscv/include/asm/io.h:149: include/asm-generic/io.h:588:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] outw(value, addr); ^~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:60:68: note: expanded from macro 'outw' #define outw(v,c) ({ __io_pbw(); writew_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); }) ~~~~~~~~~~ ^ arch/riscv/include/asm/mmio.h:92:76: note: expanded from macro 'writew_cpu' #define writew_cpu(v, c) ((void)__raw_writew((__force u16)cpu_to_le16(v), (c))) ^ In file included from drivers/net/ethernet/intel/iavf/iavf_fdir.c:6: In file included from drivers/net/ethernet/intel/iavf/iavf.h:8: In file included from include/linux/pci.h:38: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/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/riscv/include/asm/io.h:149: include/asm-generic/io.h:596:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] outl(value, addr); ^~~~~~~~~~~~~~~~~ arch/riscv/include/asm/io.h:61:68: note: expanded from macro 'outl' #define outl(v,c) ({ __io_pbw(); writel_cpu((v),(void*)(PCI_IOBASE + (c))); __io_paw(); }) ~~~~~~~~~~ ^ arch/riscv/include/asm/mmio.h:93:76: note: expanded from macro 'writel_cpu' #define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c))) ^ In file included from drivers/net/ethernet/intel/iavf/iavf_fdir.c:6: In file included from drivers/net/ethernet/intel/iavf/iavf.h:8: In file included from include/linux/pci.h:38: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:10: In file included from ./arch/riscv/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/riscv/include/asm/io.h:149: include/asm-generic/io.h:1005:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; ~~~~~~~~~~ ^ >> drivers/net/ethernet/intel/iavf/iavf_fdir.c:340:5: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat] ntohs(fltr->ip_data.dst_port), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:118:33: note: expanded from macro 'dev_info' _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/byteorder/generic.h:142:18: note: expanded from macro 'ntohs' #define ntohs(x) ___ntohs(x) ^~~~~~~~~~~ include/linux/byteorder/generic.h:137:21: note: expanded from macro '___ntohs' #define ___ntohs(x) __be16_to_cpu(x) ^~~~~~~~~~~~~~~~ include/uapi/linux/byteorder/little_endian.h:42:26: note: expanded from macro '__be16_to_cpu' #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/swab.h:105:2: note: expanded from macro '__swab16' (__builtin_constant_p((__u16)(x)) ? \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/intel/iavf/iavf_fdir.c:341:5: warning: format specifies type 'unsigned short' but the argument has type 'int' [-Wformat] ntohs(fltr->ip_data.src_port)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/dev_printk.h:118:33: note: expanded from macro 'dev_info' _dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__) ~~~ ^~~~~~~~~~~ include/linux/byteorder/generic.h:142:18: note: expanded from macro 'ntohs' #define ntohs(x) ___ntohs(x) ^~~~~~~~~~~ include/linux/byteorder/generic.h:137:21: note: expanded from macro '___ntohs' #define ___ntohs(x) __be16_to_cpu(x) ^~~~~~~~~~~~~~~~ include/uapi/linux/byteorder/little_endian.h:42:26: note: expanded from macro '__be16_to_cpu' #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/uapi/linux/swab.h:105:2: note: expanded from macro '__swab16' (__builtin_constant_p((__u16)(x)) ? \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 9 warnings generated. vim +340 drivers/net/ethernet/intel/iavf/iavf_fdir.c 316 317 /** 318 * iavf_print_fdir_fltr 319 * @adapter: adapter structure 320 * @fltr: Flow Director filter to print 321 * 322 * Print the Flow Director filter 323 **/ 324 void iavf_print_fdir_fltr(struct iavf_adapter *adapter, struct iavf_fdir_fltr *fltr) 325 { 326 const char *proto = iavf_fdir_flow_proto_name(fltr->flow_type); 327 328 if (!proto) 329 return; 330 331 switch (fltr->flow_type) { 332 case IAVF_FDIR_FLOW_IPV4_TCP: 333 case IAVF_FDIR_FLOW_IPV4_UDP: 334 case IAVF_FDIR_FLOW_IPV4_SCTP: 335 dev_info(&adapter->pdev->dev, "Rule ID: %u dst_ip: %pI4 src_ip %pI4 %s: dst_port %hu src_port %hu\n", 336 fltr->loc, 337 &fltr->ip_data.v4_addrs.dst_ip, 338 &fltr->ip_data.v4_addrs.src_ip, 339 proto, > 340 ntohs(fltr->ip_data.dst_port), 341 ntohs(fltr->ip_data.src_port)); 342 break; 343 case IAVF_FDIR_FLOW_IPV4_AH: 344 case IAVF_FDIR_FLOW_IPV4_ESP: 345 dev_info(&adapter->pdev->dev, "Rule ID: %u dst_ip: %pI4 src_ip %pI4 %s: SPI %u\n", 346 fltr->loc, 347 &fltr->ip_data.v4_addrs.dst_ip, 348 &fltr->ip_data.v4_addrs.src_ip, 349 proto, 350 ntohl(fltr->ip_data.spi)); 351 break; 352 case IAVF_FDIR_FLOW_IPV4_OTHER: 353 dev_info(&adapter->pdev->dev, "Rule ID: %u dst_ip: %pI4 src_ip %pI4 proto: %u L4_bytes: 0x%x\n", 354 fltr->loc, 355 &fltr->ip_data.v4_addrs.dst_ip, 356 &fltr->ip_data.v4_addrs.src_ip, 357 fltr->ip_data.proto, 358 ntohl(fltr->ip_data.l4_header)); 359 break; 360 default: 361 break; 362 } 363 } 364 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org