Re: [PATCH 2/5] bitops: compile time optimization forhweight_long(CONSTANT)

[Borislav Petkov]

On Wed, Feb 17, 2010 at 02:57:42PM +0100, Michal Marek wrote:
> On 12.2.2010 20:05, H. Peter Anvin wrote:
> > On 02/12/2010 09:47 AM, Borislav Petkov wrote:
> >>
> >> However, this is generic code and for the above to work we have to
> >> enforce x86-specific CFLAGS for it. What is the preferred way to do
> >> that?
> >>
> > 
> > That's a question for Michal and the kbuild list.  Michal?
> 
> (I was offline last week).
> 
> The _preferred_ way probably is not to do it :), but otherwise you can
> set CFLAGS_hweight.o depending on CONFIG_X86(_32|_64), just like you do
> in arch/x86/lib/Makefile already.

Wouldn't it be better if we had something like ARCH_CFLAGS_hweight.o
which gets set in the arch Makefile instead?

-- 
Regards/Gruss,
Boris.

--
Advanced Micro Devices, Inc.
Operating Systems Research Center
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/