[kbuild-all] Re: [linux-next:master 1487/10701] drivers/firmware/arm_scmi/smc.c:109:2: error: write to reserved register 'R7'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: fb57b1fabcb28f358901b2df90abd2b48abc1ca8 commit: 1dc6558062dadfabd2fb3bd885fa6e92ec7196f2 [1487/10701] firmware: arm_scmi: Add smc/hvc transport config: arm-randconfig-r005-20200519 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 135b877874fae96b4372c8a3fbfaa8ff44ff86e3) reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi git checkout 1dc6558062dadfabd2fb3bd885fa6e92ec7196f2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): >> drivers/firmware/arm_scmi/smc.c:109:2: error: write to reserved register 'R7' arm_smccc_1_1_invoke(scmi_info->func_id, 0, 0, 0, 0, 0, 0, 0, &res); ^

include/linux/arm-smccc.h:357:4: note: expanded from macro 'arm_smccc_1_1_invoke' arm_smccc_1_1_smc(__VA_ARGS__); ^ include/linux/arm-smccc.h:299:48: note: expanded from macro 'arm_smccc_1_1_smc' #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) ^ include/linux/arm-smccc.h:176:24: note: expanded from macro 'SMCCC_SMC_INST' #define SMCCC_SMC_INST __SMC(0) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/arm/include/asm/opcodes.h:210:2: note: expanded from macro '__inst_arm_thumb32' __inst_thumb32(thumb_opcode) ^ arch/arm/include/asm/opcodes.h:200:27: note: expanded from macro '__inst_thumb32' #define __inst_thumb32(x) ___inst_thumb32( ^ arch/arm/include/asm/opcodes.h:225:2: note: expanded from macro '___inst_thumb32' ".short " __stringify(first) ", " __stringify(second) "nt" ^ >> drivers/firmware/arm_scmi/smc.c:109:2: error: write to reserved register 'R7' include/linux/arm-smccc.h:354:4: note: expanded from macro 'arm_smccc_1_1_invoke' arm_smccc_1_1_hvc(__VA_ARGS__); ^ include/linux/arm-smccc.h:315:48: note: expanded from macro 'arm_smccc_1_1_hvc' #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) ^ include/linux/arm-smccc.h:177:24: note: expanded from macro 'SMCCC_HVC_INST' #define SMCCC_HVC_INST __HVC(0) ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) arch/arm/include/asm/opcodes.h:210:2: note: expanded from macro '__inst_arm_thumb32' __inst_thumb32(thumb_opcode) ^ arch/arm/include/asm/opcodes.h:200:27: note: expanded from macro '__inst_thumb32' #define __inst_thumb32(x) ___inst_thumb32( ^ arch/arm/include/asm/opcodes.h:225:2: note: expanded from macro '___inst_thumb32' ".short " __stringify(first) ", " __stringify(second) "nt" ^ >> drivers/firmware/arm_scmi/smc.c:109:2: error: write to reserved register 'R7' include/linux/arm-smccc.h:360:4: note: expanded from macro 'arm_smccc_1_1_invoke' __fail_smccc_1_1(__VA_ARGS__); ^ include/linux/arm-smccc.h:330:8: note: expanded from macro '__fail_smccc_1_1' asm ("" __constraints(__count_args(__VA_ARGS__))); ^ 3 errors generated. vim +/R7 +109 drivers/firmware/arm_scmi/smc.c 98 99 static int smc_send_message(struct scmi_chan_info *cinfo, 100 struct scmi_xfer *xfer) 101 { 102 struct scmi_smc *scmi_info = cinfo->transport_info; 103 struct arm_smccc_res res; 104 105 mutex_lock(&smc_mutex); 106 107 shmem_tx_prepare(scmi_info->shmem, xfer); 108 > 109 arm_smccc_1_1_invoke(scmi_info->func_id, 0, 0, 0, 0, 0, 0, 0, &res); 110 scmi_rx_callback(scmi_info->cinfo, shmem_read_header(scmi_info->shmem)); 111 112 mutex_unlock(&smc_mutex); 113 114 return res.a0; 115 } 116 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org -- You received this message because you are subscribed to the Google Groups "Clang Built Linux" group. To unsubscribe from this group and stop receiving emails from it, send an email to clang-built-linux+unsubscribe(a)googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/clang-built-linux/202005200317.WyMjX6mI....