On Sat, Dec 19, 2020 at 06:50:23AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: 0d52778b8710eb11cb616761a02aee0a7fd60425 > commit: b1246bd4a18b50c0f424a877ab64605ce8ebad86 [5576/13785] drm/amdgpu: Fix missing prototype warning > config: riscv-randconfig-r022-20201217 (attached as .config) > compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45) > 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/next/linux-next.git/commit/?id=b1246bd4a18b50c0f424a877ab64605ce8ebad86 > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout b1246bd4a18b50c0f424a877ab64605ce8ebad86 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> Hi Luben, kindly ignore this false positive report. Thanks > > Note: the linux-next/master HEAD 0d52778b8710eb11cb616761a02aee0a7fd60425 builds fine. > It may have been fixed somewhere. > > All errors (new ones prefixed by >>): > > In file included from drivers/clk/clk-cdce925.c:18: > In file included from include/linux/regmap.h:20: > In file included from include/linux/iopoll.h:14: > 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:556:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] > return inb(addr); > ^~~~~~~~~ > arch/riscv/include/asm/io.h:55:76: note: expanded from macro 'inb' > #define inb(c) ({ u8 __v; __io_pbr(); __v = readb_cpu((void*)(PCI_IOBASE + (c))); __io_par(__v); __v; }) > ~~~~~~~~~~ ^ > arch/riscv/include/asm/mmio.h:87:48: note: expanded from macro 'readb_cpu' > #define readb_cpu(c) ({ u8 __r = __raw_readb(c); __r; }) > ^ > In file included from drivers/clk/clk-cdce925.c:18: > In file included from include/linux/regmap.h:20: > In file included from include/linux/iopoll.h:14: > 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:564:9: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] > return inw(addr); > ^~~~~~~~~ > arch/riscv/include/asm/io.h:56:76: note: expanded from macro 'inw' > #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/clk/clk-cdce925.c:18: > In file included from include/linux/regmap.h:20: > In file included from include/linux/iopoll.h:14: > 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/clk/clk-cdce925.c:18: > In file included from include/linux/regmap.h:20: > In file included from include/linux/iopoll.h:14: > 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/clk/clk-cdce925.c:18: > In file included from include/linux/regmap.h:20: > In file included from include/linux/iopoll.h:14: > 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/clk/clk-cdce925.c:18: > In file included from include/linux/regmap.h:20: > In file included from include/linux/iopoll.h:14: > 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/clk/clk-cdce925.c:18: > In file included from include/linux/regmap.h:20: > In file included from include/linux/iopoll.h:14: > 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; > ~~~~~~~~~~ ^ > 7 warnings generated. > /tmp/clk-cdce925-041827.s: Assembler messages: > >> /tmp/clk-cdce925-041827.s:1150: Error: unrecognized opcode `zext.b a1,s2' > >> /tmp/clk-cdce925-041827.s:1207: Error: unrecognized opcode `zext.b a5,a6' > >> /tmp/clk-cdce925-041827.s:1255: Error: unrecognized opcode `zext.b a1,a0' > >> /tmp/clk-cdce925-041827.s:1333: Error: unrecognized opcode `zext.b s3,s2' > >> /tmp/clk-cdce925-041827.s:1335: Error: unrecognized opcode `zext.b a2,s5' > >> /tmp/clk-cdce925-041827.s:2162: Error: unrecognized opcode `zext.b a2,s2' > clang-12: error: assembler command failed with exit code 1 (use -v to see invocation) > > --- > 0-DAY CI Kernel Test Service, Intel Corporation > https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx > _______________________________________________ > kbuild-all mailing list -- kbuild-all@xxxxxxxxxxxx > To unsubscribe send an email to kbuild-all-leave@xxxxxxxxxxxx
