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authorBen Dooks <ben-linux@fluff.org>2022-07-21 20:55:09 +0100
committerakpm <akpm@linux-foundation.org>2022-07-29 18:12:36 -0700
commit787dbea11a5d6843999ff71a3fb9aa1ed6d5d889 (patch)
tree8d66478e7d8d053c29a077300188fcd298f2d647 /arch/arc
parent45ee6d1e935d879d86aebd1fd15afb3bc015c4a0 (diff)
downloadlinux-787dbea11a5d6843999ff71a3fb9aa1ed6d5d889.tar.gz
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 <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/kernel/smp.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index d947473f1e6d..ab9e75e90f72 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -232,14 +232,6 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle)
return 0;
}
-/*
- * not supported here
- */
-int setup_profiling_timer(unsigned int multiplier)
-{
- return -EINVAL;
-}
-
/*****************************************************************************/
/* Inter Processor Interrupt Handling */
/*****************************************************************************/