Commit abb39bc7 authored Oct 12, 2015 by Michael Ellerman

selftests/powerpc: Fix build failure of load_unaligned_zeropad test



Commit 7a5692e6 ("arch/powerpc: provide zero_bytemask() for
big-endian") added a call to __fls() in our word-at-a-time.h. That was
fine for the kernel build but missed the fact that we also use
word-at-a-time.h in a userspace test.

Pulling in the kernel version of __fls() gets messy, so just define our
own, it's unlikely to change often.

Fixes: 7a5692e6 ("arch/powerpc: provide zero_bytemask() for big-endian")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent f2dd80ec

tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -25,10 +25,19 @@

		#define FIXUP_SECTION ".ex_fixup"

		static inline unsigned long __fls(unsigned long x);

		#include "word-at-a-time.h"

		#include "utils.h"

		static inline unsigned long __fls(unsigned long x)
		{
		int lz;

		asm (PPC_CNTLZL "%0,%1" : "=r" (lz) : "r" (x));
		return sizeof(unsigned long) - 1 - lz;
		}

		static int page_size;
		static char *mem_region;