tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 313516d1ae36cc86a40f2b86642bc1bfec17f74e commit: 11b558f5b0628f4701672b6778c068362ef329a7 [4507/30000] arm64: smccc: Support SMCCC v1.3 SVE register saving hint config: arm64-randconfig-001-20241009 (https://download.01.org/0day-ci/archive/20241009/202410090839.I1WLy52U-lkp@i...) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 70e0a7e7e6a8541bcc46908c592eed561850e416) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241009/202410090839.I1WLy52U-lkp@i...) 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/202410090839.I1WLy52U-lkp@intel.com/ All errors (new ones prefixed by >>): | ^ include/linux/arm-smccc.h:365:33: note: expanded from macro '__arm_smccc_1_1' 365 | register unsigned long r1 asm("r1"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r2' in asm include/linux/arm-smccc.h:441:4: note: expanded from macro 'arm_smccc_1_1_invoke' 441 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:407:32: note: expanded from macro 'arm_smccc_1_1_hvc' 407 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:366:33: note: expanded from macro '__arm_smccc_1_1' 366 | register unsigned long r2 asm("r2"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r3' in asm include/linux/arm-smccc.h:441:4: note: expanded from macro 'arm_smccc_1_1_invoke' 441 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:407:32: note: expanded from macro 'arm_smccc_1_1_hvc' 407 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:367:33: note: expanded from macro '__arm_smccc_1_1' 367 | register unsigned long r3 asm("r3"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r0' in asm include/linux/arm-smccc.h:441:4: note: expanded from macro 'arm_smccc_1_1_invoke' 441 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:407:32: note: expanded from macro 'arm_smccc_1_1_hvc' 407 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:368:3: note: expanded from macro '__arm_smccc_1_1' 368 | __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \ | ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/arm-smccc.h:349:37: note: expanded from macro '___declare_args' 349 | #define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__) | ^ <scratch space>:25:1: note: expanded from here 25 | __declare_arg_0 | ^ include/linux/arm-smccc.h:303:34: note: expanded from macro '__declare_arg_0' 303 | register unsigned long arg0 asm("r0") = (u32)a0 | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121:

...

arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'x16' in asm include/linux/arm-smccc.h:441:4: note: expanded from macro 'arm_smccc_1_1_invoke' 441 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:407:32: note: expanded from macro 'arm_smccc_1_1_hvc' 407 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:372:9: note: expanded from macro '__arm_smccc_1_1' 372 | __constraints(__count_args(__VA_ARGS__))); \ | ^ include/linux/arm-smccc.h:355:30: note: expanded from macro '__constraints' 355 | #define __constraints(count) ___constraints(count) | ^ include/linux/arm-smccc.h:354:4: note: expanded from macro '___constraints' 354 | : smccc_sve_clobbers "memory" | ^ include/linux/arm-smccc.h:278:28: note: expanded from macro 'smccc_sve_clobbers' 278 | #define smccc_sve_clobbers "x16", "x30", "cc", | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r0' in asm include/linux/arm-smccc.h:444:4: note: expanded from macro 'arm_smccc_1_1_invoke' 444 | arm_smccc_1_1_smc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:391:32: note: expanded from macro 'arm_smccc_1_1_smc' 391 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:364:33: note: expanded from macro '__arm_smccc_1_1' 364 | register unsigned long r0 asm("r0"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r1' in asm include/linux/arm-smccc.h:444:4: note: expanded from macro 'arm_smccc_1_1_invoke' 444 | arm_smccc_1_1_smc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:391:32: note: expanded from macro 'arm_smccc_1_1_smc' 391 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:365:33: note: expanded from macro '__arm_smccc_1_1' 365 | register unsigned long r1 asm("r1"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r2' in asm include/linux/arm-smccc.h:444:4: note: expanded from macro 'arm_smccc_1_1_invoke' 444 | arm_smccc_1_1_smc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:391:32: note: expanded from macro 'arm_smccc_1_1_smc' 391 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:366:33: note: expanded from macro '__arm_smccc_1_1' 366 | register unsigned long r2 asm("r2"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r3' in asm include/linux/arm-smccc.h:444:4: note: expanded from macro 'arm_smccc_1_1_invoke' 444 | arm_smccc_1_1_smc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:391:32: note: expanded from macro 'arm_smccc_1_1_smc' 391 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:367:33: note: expanded from macro '__arm_smccc_1_1' 367 | register unsigned long r3 asm("r3"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r0' in asm include/linux/arm-smccc.h:444:4: note: expanded from macro 'arm_smccc_1_1_invoke' 444 | arm_smccc_1_1_smc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:391:32: note: expanded from macro 'arm_smccc_1_1_smc' 391 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:368:3: note: expanded from macro '__arm_smccc_1_1' 368 | __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \ | ^ note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/arm-smccc.h:349:37: note: expanded from macro '___declare_args' 349 | #define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__) | ^ <scratch space>:33:1: note: expanded from here 33 | __declare_arg_0 | ^ include/linux/arm-smccc.h:303:34: note: expanded from macro '__declare_arg_0' 303 | register unsigned long arg0 asm("r0") = (u32)a0 | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'x16' in asm include/linux/arm-smccc.h:444:4: note: expanded from macro 'arm_smccc_1_1_invoke' 444 | arm_smccc_1_1_smc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:391:32: note: expanded from macro 'arm_smccc_1_1_smc' 391 | #define arm_smccc_1_1_smc(...) __arm_smccc_1_1(SMCCC_SMC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:372:9: note: expanded from macro '__arm_smccc_1_1' 372 | __constraints(__count_args(__VA_ARGS__))); \ | ^ include/linux/arm-smccc.h:355:30: note: expanded from macro '__constraints' 355 | #define __constraints(count) ___constraints(count) | ^ include/linux/arm-smccc.h:354:4: note: expanded from macro '___constraints' 354 | : smccc_sve_clobbers "memory" | ^ include/linux/arm-smccc.h:278:28: note: expanded from macro 'smccc_sve_clobbers' 278 | #define smccc_sve_clobbers "x16", "x30", "cc", | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'r0' in asm include/linux/arm-smccc.h:447:4: note: expanded from macro 'arm_smccc_1_1_invoke' 447 | __fail_smccc_1_1(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:416:3: note: expanded from macro '__fail_smccc_1_1' 416 | __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \ | ^ include/linux/arm-smccc.h:350:37: note: expanded from macro '__declare_args' 350 | #define __declare_args(count, ...) ___declare_args(count, __VA_ARGS__) | ^ include/linux/arm-smccc.h:349:37: note: expanded from macro '___declare_args' 349 | #define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__) | ^ <scratch space>:41:1: note: expanded from here 41 | __declare_arg_0 | ^ include/linux/arm-smccc.h:303:34: note: expanded from macro '__declare_arg_0' 303 | register unsigned long arg0 asm("r0") = (u32)a0 | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:20:2: error: unknown register name 'x16' in asm include/linux/arm-smccc.h:447:4: note: expanded from macro 'arm_smccc_1_1_invoke' 447 | __fail_smccc_1_1(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:417:13: note: expanded from macro '__fail_smccc_1_1' 417 | asm ("" : __constraints(__count_args(__VA_ARGS__))); \ | ^ include/linux/arm-smccc.h:355:30: note: expanded from macro '__constraints' 355 | #define __constraints(count) ___constraints(count) | ^ include/linux/arm-smccc.h:354:4: note: expanded from macro '___constraints' 354 | : smccc_sve_clobbers "memory" | ^ include/linux/arm-smccc.h:278:28: note: expanded from macro 'smccc_sve_clobbers' 278 | #define smccc_sve_clobbers "x16", "x30", "cc", | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:66:3: error: unknown register name 'r0' in asm 66 | arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_RND64, 64, &res); | ^ include/linux/arm-smccc.h:441:4: note: expanded from macro 'arm_smccc_1_1_invoke' 441 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:407:32: note: expanded from macro 'arm_smccc_1_1_hvc' 407 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:364:33: note: expanded from macro '__arm_smccc_1_1' 364 | register unsigned long r0 asm("r0"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:66:3: error: unknown register name 'r1' in asm include/linux/arm-smccc.h:441:4: note: expanded from macro 'arm_smccc_1_1_invoke' 441 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:407:32: note: expanded from macro 'arm_smccc_1_1_hvc' 407 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:365:33: note: expanded from macro '__arm_smccc_1_1' 365 | register unsigned long r1 asm("r1"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19: In file included from arch/arm64/include/asm/processor.h:45: In file included from arch/arm64/include/asm/pointer_auth.h:6: In file included from include/linux/random.h:121: arch/arm64/include/asm/archrandom.h:66:3: error: unknown register name 'r2' in asm include/linux/arm-smccc.h:441:4: note: expanded from macro 'arm_smccc_1_1_invoke' 441 | arm_smccc_1_1_hvc(__VA_ARGS__); \ | ^ include/linux/arm-smccc.h:407:32: note: expanded from macro 'arm_smccc_1_1_hvc' 407 | #define arm_smccc_1_1_hvc(...) __arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__) | ^ include/linux/arm-smccc.h:366:33: note: expanded from macro '__arm_smccc_1_1' 366 | register unsigned long r2 asm("r2"); \ | ^ In file included from arch/arm64/kernel/asm-offsets.c:10: In file included from include/linux/arm_sdei.h:8: In file included from include/acpi/ghes.h:5: In file included from include/acpi/apei.h:9: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:21: In file included from include/linux/sysfs.h:17: In file included from include/linux/kernfs.h:13: In file included from include/linux/mutex.h:19:

vim +/x16 +20 arch/arm64/include/asm/archrandom.h 78d8f4f7a298a5 Andre Przywara 2022-01-17 15 181f11fd395b9e Andre Przywara 2022-01-17 16 static inline bool __init smccc_probe_trng(void) 181f11fd395b9e Andre Przywara 2022-01-17 17 { 78d8f4f7a298a5 Andre Przywara 2022-01-17 18 struct arm_smccc_res res; 78d8f4f7a298a5 Andre Przywara 2022-01-17 19 78d8f4f7a298a5 Andre Przywara 2022-01-17 @20 arm_smccc_1_1_invoke(ARM_SMCCC_TRNG_VERSION, &res); 78d8f4f7a298a5 Andre Przywara 2022-01-17 21 if ((s32)res.a0 < 0) 181f11fd395b9e Andre Przywara 2022-01-17 22 return false; 78d8f4f7a298a5 Andre Przywara 2022-01-17 23 78d8f4f7a298a5 Andre Przywara 2022-01-17 24 return res.a0 >= ARM_SMCCC_TRNG_MIN_VERSION; 181f11fd395b9e Andre Przywara 2022-01-17 25 } 181f11fd395b9e Andre Przywara 2022-01-17 26 :::::: The code at line 20 was first introduced by commit :::::: 78d8f4f7a298a5d259b2163121ea20b9e60e93f7 arm64: Add support for SMCCC TRNG entropy source :::::: TO: Andre Przywara <andre.przywara@arm.com> :::::: CC: Zheng Zengkai <zhengzengkai@huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki