RISCV_MAX_COUNTERS 25 arch/riscv/include/asm/perf_event.h #ifndef RISCV_MAX_COUNTERS RISCV_MAX_COUNTERS 54 arch/riscv/include/asm/perf_event.h struct perf_event *events[RISCV_MAX_COUNTERS]; RISCV_MAX_COUNTERS 194 arch/riscv/kernel/perf_event.c WARN_ON_ONCE(idx < 0 || idx > RISCV_MAX_COUNTERS);