Commit 7a5692e6e533 ("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: 7a5692e6e533 ("arch/powerpc: provide zero_bytemask() for big-endian")
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
.../testing/selftests/powerpc/primitives/load_unaligned_zeropad.c | 7 +++++++
1 file changed, 7 insertions(+)
v2: Use a static inline, otherwise the little endian build fails because
__fls() is unused >:(
diff --git
a/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
b/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
index d1b647509596..d33b380344aa 100644
--- a/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
+++ b/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
@@ -29,6 +29,13 @@
#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;
--
2.1.4
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