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-rw-r--r--tools/perf/util/include/linux/bitops.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index bb4ac2e0538..305c8484f20 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -2,6 +2,7 @@
#define _PERF_LINUX_BITOPS_H_
#include <linux/kernel.h>
+#include <linux/compiler.h>
#include <asm/hweight.h>
#define BITS_PER_LONG __WORDSIZE
@@ -13,6 +14,11 @@ static inline void set_bit(int nr, unsigned long *addr)
addr[nr / BITS_PER_LONG] |= 1UL << (nr % BITS_PER_LONG);
}
+static inline void clear_bit(int nr, unsigned long *addr)
+{
+ addr[nr / BITS_PER_LONG] &= ~(1UL << (nr % BITS_PER_LONG));
+}
+
static __always_inline int test_bit(unsigned int nr, const unsigned long *addr)
{
return ((1UL << (nr % BITS_PER_LONG)) &