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-rw-r--r--tools/include/asm-generic/bitsperlong.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/include/asm-generic/bitsperlong.h b/tools/include/asm-generic/bitsperlong.h
index 8f2283052333..2093d56ddd11 100644
--- a/tools/include/asm-generic/bitsperlong.h
+++ b/tools/include/asm-generic/bitsperlong.h
@@ -18,4 +18,7 @@
#define BITS_PER_LONG_LONG 64
#endif
+#define small_const_nbits(nbits) \
+ (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG && (nbits) > 0)
+
#endif /* __ASM_GENERIC_BITS_PER_LONG */