Hi All, A native build of next-20220923 on arm64 host has failed with the error: ./usr/include/asm/perf_regs.h:42:26: error: C++ style comments are not allowed in ISO C90 42 | PERF_REG_ARM64_VG = 46, // SVE Vector Granule | ^ ./usr/include/asm/perf_regs.h:42:26: note: (this will be reported only once per input file) I have not bisected but I think it will be from cbb0c02caf4b ("perf: arm64: Add SVE vector granule register to user regs"). I will be happy to test any patch or provide any extra log if needed. -- Regards Sudip