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authorBen Dooks <ben-linux@fluff.org>2022-07-21 21:55:09 +0200
committerakpm <akpm@linux-foundation.org>2022-07-30 03:12:36 +0200
commit787dbea11a5d6843999ff71a3fb9aa1ed6d5d889 (patch)
tree8d66478e7d8d053c29a077300188fcd298f2d647 /arch/hexagon
parentocfs2: fix a typo in a comment (diff)
downloadlinux-787dbea11a5d6843999ff71a3fb9aa1ed6d5d889.tar.xz
linux-787dbea11a5d6843999ff71a3fb9aa1ed6d5d889.zip
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/hexagon')
-rw-r--r--arch/hexagon/kernel/smp.c5
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 619c56420aa0..4ba93e59370c 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -240,11 +240,6 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)
send_ipi(mask, IPI_CALL_FUNC);
}
-int setup_profiling_timer(unsigned int multiplier)
-{
- return -EINVAL;
-}
-
void smp_start_cpus(void)
{
int i;