A minor optimization that save a few cycles during flow setup.
Use the GCC cold attribute for the rte_flow_error_set function.
This attribute implicitly marks all code paths that arrive at
this function as unlikely.
Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
lib/librte_ethdev/rte_flow.h | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index 63f84fca65c4..dc821be43f19 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -2591,7 +2591,13 @@ rte_flow_error_set(struct rte_flow_error *error,
int code,
enum rte_flow_error_type type,
const void *cause,
- const char *message);
+ const char *message)
+#ifdef __GNUC__
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 2))
+ __attribute__((cold))
+#endif
+#endif
+ ;
/**
* @deprecated
--
2.20.1
