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Use the flag CONFIG_ARCH_HAVE_PERF_EVENTS to detect whether the architecture specific code provides the up_perf_* functions. Now it is mixed with CONFIG_ARCH_PERF_EVENTS, which should select just whether the perf events (perf_*) are enabled for the configuration. - drivers/timers/arch_alarm.c: Don't compile the up_perf_* functions here if the CONFIG_ARCH_HAVE_PERF_EVENTS is defined - arch/*/*_perf.c: Change CONFIG_ARCH_PERF_EVENTS -> CONFIG_ARCH_HAVE_PERF_EVENTS to select whether architecture specific up_perf_* functions are provided Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>