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-rw-r--r--tools/lib/bpf/bpf_helpers.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf_helpers.h b/tools/lib/bpf/bpf_helpers.h
index 686824b8b413..a50773d4616e 100644
--- a/tools/lib/bpf/bpf_helpers.h
+++ b/tools/lib/bpf/bpf_helpers.h
@@ -15,6 +15,14 @@
#define __array(name, val) typeof(val) *name[]
#define __ulong(name, val) enum { ___bpf_concat(__unique_value, __COUNTER__) = val } name
+#ifndef likely
+#define likely(x) (__builtin_expect(!!(x), 1))
+#endif
+
+#ifndef unlikely
+#define unlikely(x) (__builtin_expect(!!(x), 0))
+#endif
+
/*
* Helper macro to place programs, maps, license in
* different sections in elf_bpf file. Section names