Hi Genjian, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.3 next-20230427] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Genjian/fix-___SYNC-build-error-when-PROFILE_ALL_BRANCHES-is-enabled/20230427-230626 base: linus/master patch link: https://lore.kernel.org/r/20230427150332.2978867-1-zhanggenjian%40kylinos.cn patch subject: [PATCH v2] fix ___SYNC () build error when PROFILE_ALL_BRANCHES is enabled config: mips-randconfig-s053-20230427 (https://download.01.org/0day-ci/archive/20230428/202304281115.mEqaC6GM-lkp@xxxxxxxxx/config) compiler: mipsel-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/6eb50851d61ca808629a062e0545704eba5be950 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Genjian/fix-___SYNC-build-error-when-PROFILE_ALL_BRANCHES-is-enabled/20230427-230626 git checkout 6eb50851d61ca808629a062e0545704eba5be950 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips SHELL=/bin/bash arch/mips/dec/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304281115.mEqaC6GM-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> arch/mips/dec/kn01-berr.c:104:34: sparse: sparse: cast removes address space '__user' of expression vim +/__user +104 arch/mips/dec/kn01-berr.c 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 59 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 60 static int dec_kn01_be_backend(struct pt_regs *regs, int is_fixup, int invoker) 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 61 { a5fc9c0bbee8b9 Maciej W. Rozycki 2005-07-01 62 volatile u32 *kn01_erraddr = (void *)CKSEG1ADDR(KN01_SLOT_BASE + a5fc9c0bbee8b9 Maciej W. Rozycki 2005-07-01 63 KN01_ERRADDR); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 64 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 65 static const char excstr[] = "exception"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 66 static const char intstr[] = "interrupt"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 67 static const char cpustr[] = "CPU"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 68 static const char mreadstr[] = "memory read"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 69 static const char readstr[] = "read"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 70 static const char writestr[] = "write"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 71 static const char timestr[] = "timeout"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 72 static const char paritystr[] = "parity error"; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 73 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 74 int data = regs->cp0_cause & 4; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 75 unsigned int __user *pc = (unsigned int __user *)regs->cp0_epc + 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 76 ((regs->cp0_cause & CAUSEF_BD) != 0); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 77 union mips_instruction insn; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 78 unsigned long entrylo, offset; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 79 long asid, entryhi, vaddr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 80 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 81 const char *kind, *agent, *cycle, *event; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 82 unsigned long address; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 83 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 84 u32 erraddr = *kn01_erraddr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 85 int action = MIPS_BE_FATAL; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 86 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 87 /* Ack ASAP, so that any subsequent errors get caught. */ 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 88 dec_kn01_be_ack(); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 89 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 90 kind = invoker ? intstr : excstr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 91 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 92 agent = cpustr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 93 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 94 if (invoker) 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 95 address = erraddr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 96 else { 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 97 /* Bloody hardware doesn't record the address for reads... */ 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 98 if (data) { 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 99 /* This never faults. */ 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 100 __get_user(insn.word, pc); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 101 vaddr = regs->regs[insn.i_format.rs] + 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 102 insn.i_format.simmediate; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 103 } else 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 @104 vaddr = (long)pc; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 105 if (KSEGX(vaddr) == CKSEG0 || KSEGX(vaddr) == CKSEG1) 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 106 address = CPHYSADDR(vaddr); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 107 else { 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 108 /* Peek at what physical address the CPU used. */ 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 109 asid = read_c0_entryhi(); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 110 entryhi = asid & (PAGE_SIZE - 1); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 111 entryhi |= vaddr & ~(PAGE_SIZE - 1); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 112 write_c0_entryhi(entryhi); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 113 BARRIER; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 114 tlb_probe(); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 115 /* No need to check for presence. */ 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 116 tlb_read(); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 117 entrylo = read_c0_entrylo0(); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 118 write_c0_entryhi(asid); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 119 offset = vaddr & (PAGE_SIZE - 1); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 120 address = (entrylo & ~(PAGE_SIZE - 1)) | offset; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 121 } 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 122 } 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 123 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 124 /* Treat low 256MB as memory, high -- as I/O. */ 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 125 if (address < 0x10000000) { 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 126 cycle = mreadstr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 127 event = paritystr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 128 } else { 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 129 cycle = invoker ? writestr : readstr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 130 event = timestr; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 131 } 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 132 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 133 if (is_fixup) 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 134 action = MIPS_BE_FIXUP; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 135 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 136 if (action != MIPS_BE_FIXUP) 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 137 printk(KERN_ALERT "Bus error %s: %s %s %s at %#010lx\n", 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 138 kind, agent, cycle, event, address); 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 139 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 140 return action; 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 141 } 69c75fb458cd81 Maciej W. Rozycki 2005-06-22 142 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
