From 787dbea11a5d6843999ff71a3fb9aa1ed6d5d889 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Thu, 21 Jul 2022 20:55:09 +0100 Subject: profile: setup_profiling_timer() is moslty not implemented The setup_profiling_timer() is mostly un-implemented by many architectures. In many places it isn't guarded by CONFIG_PROFILE which is needed for it to be used. Make it a weak symbol in kernel/profile.c and remove the 'return -EINVAL' implementations from the kenrel. There are a couple of architectures which do return 0 from the setup_profiling_timer() function but they don't seem to do anything else with it. To keep the /proc compatibility for now, leave these for a future update or removal. On ARM, this fixes the following sparse warning: arch/arm/kernel/smp.c:793:5: warning: symbol 'setup_profiling_timer' was not declared. Should it be static? Link: https://lkml.kernel.org/r/20220721195509.418205-1-ben-linux@fluff.org Signed-off-by: Ben Dooks Signed-off-by: Andrew Morton --- arch/ia64/kernel/smp.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'arch/ia64/kernel') diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index 7b7b64eb3129..e2cc59db86bc 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -333,9 +333,3 @@ smp_send_stop (void) { send_IPI_allbutself(IPI_CPU_STOP); } - -int -setup_profiling_timer (unsigned int multiplier) -{ - return -EINVAL; -} -- cgit v1.2.3-59-g8ed1b