2.6.27-rc3-git4: Multiple implicit declarations in log2.h

[Rafael J. Wysocki]

Hi,

I see this compiling the current mainline on x86-64:

  AS      arch/x86/boot/compressed/head_64.o
In file included from /home/rafael/src/linux-2.6/include/linux/kernel.h:16,
                 from /home/rafael/src/linux-2.6/arch/x86/boot/memory.c:16:
/home/rafael/src/linux-2.6/include/linux/log2.h: In function â__ilog2_u32â:
/home/rafael/src/linux-2.6/include/linux/log2.h:34: warning: implicit declaration of function âflsâ
/home/rafael/src/linux-2.6/include/linux/log2.h: In function â__ilog2_u64â:
/home/rafael/src/linux-2.6/include/linux/log2.h:42: warning: implicit declaration of function âfls64â
/home/rafael/src/linux-2.6/include/linux/log2.h: In function â__roundup_pow_of_twoâ:
/home/rafael/src/linux-2.6/include/linux/log2.h:63: warning: implicit declaration of function âfls_longâ
  CC      arch/x86/boot/compressed/misc.o

I guess there's a missing #include or something?

Rafael
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