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--></style></head><body lang=ES-CO link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi list<br><br>In the /kernel /events /core.c file there are some functions like:<br><span class=pl-en>perf_event_free_filter <a href="https://elixir.bootlin.com/linux/v5.8/A/ident/perf_event_free_filter">https://elixir.bootlin.com/linux/v5.8/A/ident/perf_event_free_filter</a></span><br><span class=pl-en>perf_tp_register <a href="https://elixir.bootlin.com/linux/v5.8/A/ident/perf_tp_register">https://elixir.bootlin.com/linux/v5.8/A/ident/perf_tp_register</a></span> <span class=pl-en><o:p></o:p></span></p><p class=MsoNormal><span class=pl-en><br></span>Who have an empty body,<br>I understand that they are inside a conditional created by the preprocessor directives and also that they are called in some parts of the code , but would it really be necessary that when the directive is not true to leave the function with the body empty, would it be a solution? Or is it just missing to eliminate those functions without a body?<br><br>very thanks!!.<o:p></o:p></p></div></body></html>