Hi Jisheng, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.15-rc5 next-20211015] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Jisheng-Zhang/riscv-switch-to-relative-extable/20211017-001318 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 8fe31e0995f048d16b378b90926793a0aa4af1e5 config: riscv-randconfig-r032-20211017 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 746dd6a700931988dd9021d3d04718f1929885a5) 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://github.com/0day-ci/linux/commit/23c273bf6ec4ca672a21dba701725087208dc784 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jisheng-Zhang/riscv-switch-to-relative-extable/20211017-001318 git checkout 23c273bf6ec4ca672a21dba701725087208dc784 # save the attached .config 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 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from kernel/futex.c:36: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:11: 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:136: include/asm-generic/io.h:464:31: 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:477:61: 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:36:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from kernel/futex.c:36: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:11: 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:136: include/asm-generic/io.h:490:61: 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:34:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from kernel/futex.c:36: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:11: 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:136: include/asm-generic/io.h:501:33: 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:511:59: 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:521:59: 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); ~~~~~~~~~~ ^ include/asm-generic/io.h:1024:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; ~~~~~~~~~~ ^ In file included from kernel/futex.c:43: >> arch/riscv/include/asm/futex.h:51:3: error: expected ')' __futex_atomic_op("amoswap.w.aqrl %[ov],%z[op],%[u]", ^ arch/riscv/include/asm/futex.h:33:3: note: expanded from macro '__futex_atomic_op' _ASM_EXTABLE(1b, 3b) \ ^ arch/riscv/include/asm/futex.h:55:3: error: expected ')' __futex_atomic_op("amoadd.w.aqrl %[ov],%z[op],%[u]", ^ arch/riscv/include/asm/futex.h:33:3: note: expanded from macro '__futex_atomic_op' _ASM_EXTABLE(1b, 3b) \ ^ arch/riscv/include/asm/futex.h:59:3: error: expected ')' __futex_atomic_op("amoor.w.aqrl %[ov],%z[op],%[u]", ^ arch/riscv/include/asm/futex.h:33:3: note: expanded from macro '__futex_atomic_op' _ASM_EXTABLE(1b, 3b) \ ^ arch/riscv/include/asm/futex.h:63:3: error: expected ')' __futex_atomic_op("amoand.w.aqrl %[ov],%z[op],%[u]", ^ arch/riscv/include/asm/futex.h:33:3: note: expanded from macro '__futex_atomic_op' _ASM_EXTABLE(1b, 3b) \ ^ arch/riscv/include/asm/futex.h:67:3: error: expected ')' __futex_atomic_op("amoxor.w.aqrl %[ov],%z[op],%[u]", ^ arch/riscv/include/asm/futex.h:33:3: note: expanded from macro '__futex_atomic_op' _ASM_EXTABLE(1b, 3b) \ ^ arch/riscv/include/asm/futex.h:103:3: error: expected ')' _ASM_EXTABLE(1b, 4b) \ ^ 7 warnings and 6 errors generated. vim +51 arch/riscv/include/asm/futex.h b90edb33010bcf Jim Wilson 2018-10-16 40 b90edb33010bcf Jim Wilson 2018-10-16 41 static inline int b90edb33010bcf Jim Wilson 2018-10-16 42 arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) b90edb33010bcf Jim Wilson 2018-10-16 43 { b90edb33010bcf Jim Wilson 2018-10-16 44 int oldval = 0, ret = 0; b90edb33010bcf Jim Wilson 2018-10-16 45 a08971e9488d12 Al Viro 2020-02-16 46 if (!access_ok(uaddr, sizeof(u32))) a08971e9488d12 Al Viro 2020-02-16 47 return -EFAULT; b90edb33010bcf Jim Wilson 2018-10-16 48 b90edb33010bcf Jim Wilson 2018-10-16 49 switch (op) { b90edb33010bcf Jim Wilson 2018-10-16 50 case FUTEX_OP_SET: b90edb33010bcf Jim Wilson 2018-10-16 @51 __futex_atomic_op("amoswap.w.aqrl %[ov],%z[op],%[u]", b90edb33010bcf Jim Wilson 2018-10-16 52 ret, oldval, uaddr, oparg); b90edb33010bcf Jim Wilson 2018-10-16 53 break; b90edb33010bcf Jim Wilson 2018-10-16 54 case FUTEX_OP_ADD: b90edb33010bcf Jim Wilson 2018-10-16 55 __futex_atomic_op("amoadd.w.aqrl %[ov],%z[op],%[u]", b90edb33010bcf Jim Wilson 2018-10-16 56 ret, oldval, uaddr, oparg); b90edb33010bcf Jim Wilson 2018-10-16 57 break; b90edb33010bcf Jim Wilson 2018-10-16 58 case FUTEX_OP_OR: b90edb33010bcf Jim Wilson 2018-10-16 59 __futex_atomic_op("amoor.w.aqrl %[ov],%z[op],%[u]", b90edb33010bcf Jim Wilson 2018-10-16 60 ret, oldval, uaddr, oparg); b90edb33010bcf Jim Wilson 2018-10-16 61 break; b90edb33010bcf Jim Wilson 2018-10-16 62 case FUTEX_OP_ANDN: b90edb33010bcf Jim Wilson 2018-10-16 63 __futex_atomic_op("amoand.w.aqrl %[ov],%z[op],%[u]", b90edb33010bcf Jim Wilson 2018-10-16 64 ret, oldval, uaddr, ~oparg); b90edb33010bcf Jim Wilson 2018-10-16 65 break; b90edb33010bcf Jim Wilson 2018-10-16 66 case FUTEX_OP_XOR: b90edb33010bcf Jim Wilson 2018-10-16 67 __futex_atomic_op("amoxor.w.aqrl %[ov],%z[op],%[u]", b90edb33010bcf Jim Wilson 2018-10-16 68 ret, oldval, uaddr, oparg); b90edb33010bcf Jim Wilson 2018-10-16 69 break; b90edb33010bcf Jim Wilson 2018-10-16 70 default: b90edb33010bcf Jim Wilson 2018-10-16 71 ret = -ENOSYS; b90edb33010bcf Jim Wilson 2018-10-16 72 } b90edb33010bcf Jim Wilson 2018-10-16 73 b90edb33010bcf Jim Wilson 2018-10-16 74 if (!ret) b90edb33010bcf Jim Wilson 2018-10-16 75 *oval = oldval; b90edb33010bcf Jim Wilson 2018-10-16 76 b90edb33010bcf Jim Wilson 2018-10-16 77 return ret; b90edb33010bcf Jim Wilson 2018-10-16 78 } b90edb33010bcf Jim Wilson 2018-10-16 79 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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