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The sleep_sem semaphore and the specific_wait field (member of sched_atom) are initialized but not used anywhere in the code, so this patch removes them. The SCHED_EVENT_MIGRATION case in perf_sched__process_event() is currently not used and is also removed. Additionally, prev_state in add_sched_event_sleep() is marked with __maybe_unused and is not utilized anywhere in the function. This patch removes the parameter. If the task_state parameter was intended for future use, it can be reintroduced when needed. No functionality change intended. Signed-off-by: Madadi Vineeth Reddy <vineethr@linux.ibm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Link: https://lore.kernel.org/r/20240917090100.42783-1-vineethr@linux.ibm.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>