On Mon, Feb 18, 2019 at 02:59:31PM +0900, Masahiro Yamada wrote:
> arch/x86/include/asm/arch_hweight.h uses __sw_hweight{32,64} as
> alternatives, but they are implemented in arch/x86/lib/hweight.S
>
> x86 does not rely on the generic C implementation lib/hweight.c
> at all, so CONFIG_GENERIC_HWEIGHT should be disabled.
>
> __HAVE_ARCH_SW_HWEIGHT was unneeded in the first place.
Well, it was needed because I didn't think of removing the selection of
GENERIC_HWEIGHT in arch/x86/ at the time:
ld: lib/built-in.o:/dev/shm/bpetkov/kernel/linux/lib/hweight.c:27: multiple
definition of `__ksymtab___sw_hweight32';
arch/x86/built-in.o:/dev/shm/bpetkov/kernel/linux/arch/x86/kernel/x8664_ksyms_64.c:47:
first defined here
ld: lib/built-in.o:/dev/shm/bpetkov/kernel/linux/lib/hweight.c:67: multiple
definition of `__ksymtab___sw_hweight64';
arch/x86/built-in.o:/dev/shm/bpetkov/kernel/linux/arch/x86/kernel/x8664_ksyms_64.c:48:
first defined here
ld: arch/x86/lib/built-in.o: in function `__sw_hweight32':
/dev/shm/bpetkov/kernel/linux/arch/x86/lib/hweight.S:12: multiple definition of
`__sw_hweight32';
lib/built-in.o:/dev/shm/bpetkov/kernel/linux/lib/hweight.c:15: first defined
here
ld: arch/x86/lib/built-in.o: in function `__sw_hweight64':
/dev/shm/bpetkov/kernel/linux/arch/x86/lib/hweight.S:38: multiple definition of
`__sw_hweight64';
lib/built-in.o:/dev/shm/bpetkov/kernel/linux/lib/hweight.c:53: first defined
here
make: *** [vmlinux] Error 1
--
Regards/Gruss,
Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
