tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable head: 643039cbab79355ceb1ce9a91e2a7483a44bec05 commit: fceebffabbb6a664115469aac95d243048b09d22 [35/36] arm64: smccc: replace custom COUNT_ARGS() & CONCATENATE() implementations config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20230718/202307180935.HWK2YvKG-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230718/202307180935.HWK2YvKG-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202307180935.HWK2YvKG-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:419:59: error: 'arg2' undeclared (first use in this function); did you mean 'r2'? 419 | #define __constraint_read_2 __constraint_read_1, "r" (arg2) | ^~~~ include/linux/arm-smccc.h:420:33: note: in expansion of macro '__constraint_read_2' 420 | #define __constraint_read_3 __constraint_read_2, "r" (arg3) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:421:33: note: in expansion of macro '__constraint_read_3' 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:422:33: note: in expansion of macro '__constraint_read_4' 422 | #define __constraint_read_5 __constraint_read_4, "r" (arg5) | ^~~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_5' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:33:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 33 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:420:59: error: 'arg3' undeclared (first use in this function); did you mean 'r3'? 420 | #define __constraint_read_3 __constraint_read_2, "r" (arg3) | ^~~~ include/linux/arm-smccc.h:421:33: note: in expansion of macro '__constraint_read_3' 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:422:33: note: in expansion of macro '__constraint_read_4' 422 | #define __constraint_read_5 __constraint_read_4, "r" (arg5) | ^~~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_5' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:33:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 33 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:421:59: error: 'arg4' undeclared (first use in this function) 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~ include/linux/arm-smccc.h:422:33: note: in expansion of macro '__constraint_read_4' 422 | #define __constraint_read_5 __constraint_read_4, "r" (arg5) | ^~~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_5' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:33:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 33 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:422:59: error: 'arg5' undeclared (first use in this function) 422 | #define __constraint_read_5 __constraint_read_4, "r" (arg5) | ^~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_5' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:33:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 33 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:492:21: error: '___res' undeclared (first use in this function) 492 | if (___res) \ | ^~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:33:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 33 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, | ^~~~~~~~~~~~~~~~~ >> arch/arm64/hyperv/hv_core.c:28:33: warning: variable 'output_address' set but not used [-Wunused-but-set-variable] 28 | u64 output_address; | ^~~~~~~~~~~~~~ >> arch/arm64/hyperv/hv_core.c:27:33: warning: variable 'input_address' set but not used [-Wunused-but-set-variable] 27 | u64 input_address; | ^~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c: In function 'hv_do_fast_hypercall8': include/linux/arm-smccc.h:485:29: error: '__declare_arg_4' undeclared (first use in this function) 485 | CONCATENATE(__declare_arg_, COUNT_ARGS(__VA_ARGS__)); \ | ^~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in definition of macro '__CONCAT' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/arm-smccc.h:485:17: note: in expansion of macro 'CONCATENATE' 485 | CONCATENATE(__declare_arg_, COUNT_ARGS(__VA_ARGS__)); \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:52:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 52 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:417:38: error: 'arg0' undeclared (first use in this function); did you mean 'r0'? 417 | #define __constraint_read_0 "r" (arg0) | ^~~~ include/linux/arm-smccc.h:418:33: note: in expansion of macro '__constraint_read_0' 418 | #define __constraint_read_1 __constraint_read_0, "r" (arg1) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:419:33: note: in expansion of macro '__constraint_read_1' 419 | #define __constraint_read_2 __constraint_read_1, "r" (arg2) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:420:33: note: in expansion of macro '__constraint_read_2' 420 | #define __constraint_read_3 __constraint_read_2, "r" (arg3) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:421:33: note: in expansion of macro '__constraint_read_3' 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_4' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:52:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 52 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:418:59: error: 'arg1' undeclared (first use in this function); did you mean 'r1'? 418 | #define __constraint_read_1 __constraint_read_0, "r" (arg1) | ^~~~ include/linux/arm-smccc.h:419:33: note: in expansion of macro '__constraint_read_1' 419 | #define __constraint_read_2 __constraint_read_1, "r" (arg2) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:420:33: note: in expansion of macro '__constraint_read_2' 420 | #define __constraint_read_3 __constraint_read_2, "r" (arg3) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:421:33: note: in expansion of macro '__constraint_read_3' 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_4' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:52:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 52 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:419:59: error: 'arg2' undeclared (first use in this function); did you mean 'r2'? 419 | #define __constraint_read_2 __constraint_read_1, "r" (arg2) | ^~~~ include/linux/arm-smccc.h:420:33: note: in expansion of macro '__constraint_read_2' 420 | #define __constraint_read_3 __constraint_read_2, "r" (arg3) | ^~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:421:33: note: in expansion of macro '__constraint_read_3' 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_4' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:52:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 52 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:420:59: error: 'arg3' undeclared (first use in this function); did you mean 'r3'? 420 | #define __constraint_read_3 __constraint_read_2, "r" (arg3) | ^~~~ include/linux/arm-smccc.h:421:33: note: in expansion of macro '__constraint_read_3' 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_4' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:52:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 52 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:421:59: error: 'arg4' undeclared (first use in this function) 421 | #define __constraint_read_4 __constraint_read_3, "r" (arg4) | ^~~~ include/linux/args.h:25:24: note: in expansion of macro '__constraint_read_4' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/args.h:26:27: note: in expansion of macro '__CONCAT' 26 | #define CONCATENATE(a, b) __CONCAT(a, b) | ^~~~~~~~ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:52:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 52 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:492:21: error: '___res' undeclared (first use in this function) 492 | if (___res) \ | ^~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:52:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 52 | arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); | ^~~~~~~~~~~~~~~~~ >> arch/arm64/hyperv/hv_core.c:48:33: warning: variable 'control' set but not used [-Wunused-but-set-variable] 48 | u64 control; | ^~~~~~~ arch/arm64/hyperv/hv_core.c: In function 'hv_set_vpreg': include/linux/arm-smccc.h:485:29: error: '__declare_arg_9' undeclared (first use in this function) 485 | CONCATENATE(__declare_arg_, COUNT_ARGS(__VA_ARGS__)); \ | ^~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in definition of macro '__CONCAT' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/arm-smccc.h:485:17: note: in expansion of macro 'CONCATENATE' 485 | CONCATENATE(__declare_arg_, COUNT_ARGS(__VA_ARGS__)); \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:64:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 64 | arm_smccc_1_1_hvc(HV_FUNC_ID, | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:489:44: error: expected string literal before '__constraint_read_9' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~~~~~~~~ include/linux/args.h:25:24: note: in definition of macro '__CONCAT' 25 | #define __CONCAT(a, b) a ## b | ^ include/linux/arm-smccc.h:489:32: note: in expansion of macro 'CONCATENATE' 489 | : CONCATENATE(__constraint_read_, \ | ^~~~~~~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:64:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 64 | arm_smccc_1_1_hvc(HV_FUNC_ID, | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:492:21: error: '___res' undeclared (first use in this function) 492 | if (___res) \ | ^~~~~~ include/linux/arm-smccc.h:526:33: note: in expansion of macro '__arm_smccc_1_1' 526 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm64/hyperv/hv_core.c:64:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 64 | arm_smccc_1_1_hvc(HV_FUNC_ID, | ^~~~~~~~~~~~~~~~~ vim +/output_address +28 arch/arm64/hyperv/hv_core.c 57d276bbbd3224 Michael Kelley 2021-08-04 20 57d276bbbd3224 Michael Kelley 2021-08-04 21 /* 57d276bbbd3224 Michael Kelley 2021-08-04 22 * hv_do_hypercall- Invoke the specified hypercall 57d276bbbd3224 Michael Kelley 2021-08-04 23 */ 57d276bbbd3224 Michael Kelley 2021-08-04 24 u64 hv_do_hypercall(u64 control, void *input, void *output) 57d276bbbd3224 Michael Kelley 2021-08-04 25 { 57d276bbbd3224 Michael Kelley 2021-08-04 26 struct arm_smccc_res res; 57d276bbbd3224 Michael Kelley 2021-08-04 @27 u64 input_address; 57d276bbbd3224 Michael Kelley 2021-08-04 @28 u64 output_address; 57d276bbbd3224 Michael Kelley 2021-08-04 29 57d276bbbd3224 Michael Kelley 2021-08-04 30 input_address = input ? virt_to_phys(input) : 0; 57d276bbbd3224 Michael Kelley 2021-08-04 31 output_address = output ? virt_to_phys(output) : 0; 57d276bbbd3224 Michael Kelley 2021-08-04 32 57d276bbbd3224 Michael Kelley 2021-08-04 @33 arm_smccc_1_1_hvc(HV_FUNC_ID, control, 57d276bbbd3224 Michael Kelley 2021-08-04 34 input_address, output_address, &res); 57d276bbbd3224 Michael Kelley 2021-08-04 35 return res.a0; 57d276bbbd3224 Michael Kelley 2021-08-04 36 } 57d276bbbd3224 Michael Kelley 2021-08-04 37 EXPORT_SYMBOL_GPL(hv_do_hypercall); 57d276bbbd3224 Michael Kelley 2021-08-04 38 57d276bbbd3224 Michael Kelley 2021-08-04 39 /* 57d276bbbd3224 Michael Kelley 2021-08-04 40 * hv_do_fast_hypercall8 -- Invoke the specified hypercall 57d276bbbd3224 Michael Kelley 2021-08-04 41 * with arguments in registers instead of physical memory. 57d276bbbd3224 Michael Kelley 2021-08-04 42 * Avoids the overhead of virt_to_phys for simple hypercalls. 57d276bbbd3224 Michael Kelley 2021-08-04 43 */ 57d276bbbd3224 Michael Kelley 2021-08-04 44 57d276bbbd3224 Michael Kelley 2021-08-04 45 u64 hv_do_fast_hypercall8(u16 code, u64 input) 57d276bbbd3224 Michael Kelley 2021-08-04 46 { 57d276bbbd3224 Michael Kelley 2021-08-04 47 struct arm_smccc_res res; 57d276bbbd3224 Michael Kelley 2021-08-04 @48 u64 control; 57d276bbbd3224 Michael Kelley 2021-08-04 49 57d276bbbd3224 Michael Kelley 2021-08-04 50 control = (u64)code | HV_HYPERCALL_FAST_BIT; 57d276bbbd3224 Michael Kelley 2021-08-04 51 57d276bbbd3224 Michael Kelley 2021-08-04 @52 arm_smccc_1_1_hvc(HV_FUNC_ID, control, input, &res); 57d276bbbd3224 Michael Kelley 2021-08-04 53 return res.a0; 57d276bbbd3224 Michael Kelley 2021-08-04 54 } 57d276bbbd3224 Michael Kelley 2021-08-04 55 EXPORT_SYMBOL_GPL(hv_do_fast_hypercall8); 57d276bbbd3224 Michael Kelley 2021-08-04 56 :::::: The code at line 28 was first introduced by commit :::::: 57d276bbbd322409bb6f7c6446187a29953f8ded arm64: hyperv: Add Hyper-V hypercall and register access utilities :::::: TO: Michael Kelley <mikelley@xxxxxxxxxxxxx> :::::: CC: Wei Liu <wei.liu@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
