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| author | Ben Dooks <ben-linux@fluff.org> | 2022-07-21 22:55:09 +0300 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-30 04:12:36 +0300 |
| commit | 787dbea11a5d6843999ff71a3fb9aa1ed6d5d889 (patch) | |
| tree | 8d66478e7d8d053c29a077300188fcd298f2d647 /arch/x86/include/asm/apic.h | |
| parent | 45ee6d1e935d879d86aebd1fd15afb3bc015c4a0 (diff) | |
| download | linux-787dbea11a5d6843999ff71a3fb9aa1ed6d5d889.tar.xz | |
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/x86/include/asm/apic.h')
| -rw-r--r-- | arch/x86/include/asm/apic.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index bd8ae0a7010a..3415321c8240 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -98,8 +98,6 @@ static inline bool apic_from_smp_config(void) #include <asm/paravirt.h> #endif -extern int setup_profiling_timer(unsigned int); - static inline void native_apic_mem_write(u32 reg, u32 v) { volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg); |