Hi all, After merging the mm tree, today's linux-next build (arm multi_v7_defconfig) failed like this: In file included from include/linux/arm-smccc.h:8, from arch/arm/mm/proc-v7-bugs.c:2: arch/arm/mm/proc-v7-bugs.c: In function 'spectre_v2_get_cpu_fw_mitigation_state': include/linux/arm-smccc.h:485:29: error: '__declare_arg_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:17:9: note: in expansion of macro 'arm_smccc_1_1_invoke' 17 | arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, | ^~~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:485:29: note: each undeclared identifier is reported only once for each function it appears in 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:17:9: note: in expansion of macro 'arm_smccc_1_1_invoke' 17 | arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, | ^~~~~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:17:9: note: in expansion of macro 'arm_smccc_1_1_invoke' 17 | arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, | ^~~~~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:17:9: note: in expansion of macro 'arm_smccc_1_1_invoke' 17 | arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, | ^~~~~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:17:9: note: in expansion of macro 'arm_smccc_1_1_invoke' 17 | arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, | ^~~~~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:17:9: note: in expansion of macro 'arm_smccc_1_1_invoke' 17 | arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:17:9: note: in expansion of macro 'arm_smccc_1_1_invoke' 17 | arm_smccc_1_1_invoke(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, | ^~~~~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c: In function 'call_smc_arch_workaround_1': include/linux/arm-smccc.h:485:29: error: '__declare_arg_2' 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:510:33: note: in expansion of macro '__arm_smccc_1_1' 510 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:58:9: note: in expansion of macro 'arm_smccc_1_1_smc' 58 | arm_smccc_1_1_smc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_2' 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:510:33: note: in expansion of macro '__arm_smccc_1_1' 510 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:58:9: note: in expansion of macro 'arm_smccc_1_1_smc' 58 | arm_smccc_1_1_smc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_2' 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:510:33: note: in expansion of macro '__arm_smccc_1_1' 510 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:58:9: note: in expansion of macro 'arm_smccc_1_1_smc' 58 | arm_smccc_1_1_smc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_2' 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:510:33: note: in expansion of macro '__arm_smccc_1_1' 510 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:58:9: note: in expansion of macro 'arm_smccc_1_1_smc' 58 | arm_smccc_1_1_smc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:492:21: error: '___res' undeclared (first use in this function) 492 | if (___res) \ | ^~~~~~ include/linux/arm-smccc.h:510:33: note: in expansion of macro '__arm_smccc_1_1' 510 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c:58:9: note: in expansion of macro 'arm_smccc_1_1_smc' 58 | arm_smccc_1_1_smc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ arch/arm/mm/proc-v7-bugs.c: In function 'call_hvc_arch_workaround_1': include/linux/arm-smccc.h:485:29: error: '__declare_arg_2' 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/arm/mm/proc-v7-bugs.c:63:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 63 | arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_2' 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/arm/mm/proc-v7-bugs.c:63:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 63 | arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_2' 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/arm/mm/proc-v7-bugs.c:63:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 63 | arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ 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/args.h:25:24: note: in expansion of macro '__constraint_read_2' 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/arm/mm/proc-v7-bugs.c:63:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 63 | arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ 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/arm/mm/proc-v7-bugs.c:63:9: note: in expansion of macro 'arm_smccc_1_1_hvc' 63 | arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); | ^~~~~~~~~~~~~~~~~ make[5]: *** [scripts/Makefile.build:243: arch/arm/mm/proc-v7-bugs.o] Error 1 make[4]: *** [scripts/Makefile.build:477: arch/arm/mm] Error 2 make[3]: *** [scripts/Makefile.build:477: arch/arm] Error 2 make[3]: *** Waiting for unfinished jobs.... In file included from include/linux/arm-smccc.h:8, from drivers/char/hw_random/arm_smccc_trng.c:20: drivers/char/hw_random/arm_smccc_trng.c: In function 'smccc_trng_read': include/linux/arm-smccc.h:485:29: error: '__declare_arg_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ drivers/char/hw_random/arm_smccc_trng.c:73:17: note: in expansion of macro 'arm_smccc_1_1_invoke' 73 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND, bits, &res); | ^~~~~~~~~~~~~~~~~~~~ include/linux/arm-smccc.h:485:29: note: each undeclared identifier is reported only once for each function it appears in 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ drivers/char/hw_random/arm_smccc_trng.c:73:17: note: in expansion of macro 'arm_smccc_1_1_invoke' 73 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND, bits, &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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ drivers/char/hw_random/arm_smccc_trng.c:73:17: note: in expansion of macro 'arm_smccc_1_1_invoke' 73 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND, bits, &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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ drivers/char/hw_random/arm_smccc_trng.c:73:17: note: in expansion of macro 'arm_smccc_1_1_invoke' 73 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND, bits, &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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ drivers/char/hw_random/arm_smccc_trng.c:73:17: note: in expansion of macro 'arm_smccc_1_1_invoke' 73 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND, bits, &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/args.h:25:24: note: in expansion of macro '__constraint_read_3' 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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ drivers/char/hw_random/arm_smccc_trng.c:73:17: note: in expansion of macro 'arm_smccc_1_1_invoke' 73 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND, bits, &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__) | ^~~~~~~~~~~~~~~ include/linux/arm-smccc.h:563:25: note: in expansion of macro 'arm_smccc_1_1_hvc' 563 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^~~~~~~~~~~~~~~~~ drivers/char/hw_random/arm_smccc_trng.c:73:17: note: in expansion of macro 'arm_smccc_1_1_invoke' 73 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND, bits, &res); | ^~~~~~~~~~~~~~~~~~~~ Presumably caused by commits 93e9856955f8 ("kernel.h: split out COUNT_ARGS() and CONCATENATE() to args.h") fceebffabbb6 ("arm64: smccc: replace custom COUNT_ARGS() & CONCATENATE() implementations") I have used the mm tree from next-20230717 for today. -- Cheers, Stephen Rothwell
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