Messages in this thread | | | Date | Wed, 26 Jul 2023 07:34:00 +0800 | From | kernel test robot <> | Subject | arch/riscv/net/bpf_jit.h:241:30: sparse: sparse: cast truncates bits from constant value (7ff becomes ff) |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: af2e19389c2c1d8a299e04c5105b180ef0c5b5b5 commit: 2d311f480b52eeb2e1fd432d64b78d82952c3808 riscv, bpf: Fix patch_text implicit declaration date: 5 months ago config: riscv-randconfig-r072-20230725 (https://download.01.org/0day-ci/archive/20230726/202307260704.dUElCrWU-lkp@intel.com/config) compiler: riscv64-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230726/202307260704.dUElCrWU-lkp@intel.com/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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202307260704.dUElCrWU-lkp@intel.com/
sparse warnings: (new ones prefixed by >>) WARNING: invalid argument to '-march': '_zicbom_zihintpause' arch/riscv/net/bpf_jit_comp64.c: note: in included file: >> arch/riscv/net/bpf_jit.h:241:30: sparse: sparse: cast truncates bits from constant value (7ff becomes ff)
vim +241 arch/riscv/net/bpf_jit.h
ca6cb5447ceca6 Luke Nelson 2020-03-04 238 ca6cb5447ceca6 Luke Nelson 2020-03-04 239 static inline u32 rv_s_insn(u16 imm11_0, u8 rs2, u8 rs1, u8 funct3, u8 opcode) ca6cb5447ceca6 Luke Nelson 2020-03-04 240 { ca6cb5447ceca6 Luke Nelson 2020-03-04 @241 u8 imm11_5 = imm11_0 >> 5, imm4_0 = imm11_0 & 0x1f; ca6cb5447ceca6 Luke Nelson 2020-03-04 242 ca6cb5447ceca6 Luke Nelson 2020-03-04 243 return (imm11_5 << 25) | (rs2 << 20) | (rs1 << 15) | (funct3 << 12) | ca6cb5447ceca6 Luke Nelson 2020-03-04 244 (imm4_0 << 7) | opcode; ca6cb5447ceca6 Luke Nelson 2020-03-04 245 } ca6cb5447ceca6 Luke Nelson 2020-03-04 246
:::::: The code at line 241 was first introduced by commit :::::: ca6cb5447ceca6a87d6b62c9e5d41042c34f7ffa riscv, bpf: Factor common RISC-V JIT code
:::::: TO: Luke Nelson <lukenels@cs.washington.edu> :::::: CC: Daniel Borkmann <daniel@iogearbox.net>
-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
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