From d08cb45362e0c00f29bf0a1f9c639f22042df34b Mon Sep 17 00:00:00 2001
From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 8 Apr 2022 17:25:14 -0700
Subject: [PATCH] iflib: Use empty inline functions for prefetch*() on non-x86.

This avoids warnings about unused variables in expressions passed to
prefetch*().
---
 sys/net/iflib.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/sys/net/iflib.c b/sys/net/iflib.c
index 2971a22d799e..d088571b09c0 100644
--- a/sys/net/iflib.c
+++ b/sys/net/iflib.c
@@ -1399,6 +1399,7 @@ prefetch(void *x)
 {
 	__asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
 }
+
 static __inline void
 prefetch2cachelines(void *x)
 {
@@ -1408,8 +1409,15 @@ prefetch2cachelines(void *x)
 #endif
 }
 #else
-#define prefetch(x)
-#define prefetch2cachelines(x)
+static __inline void
+prefetch(void *x)
+{
+}
+
+static __inline void
+prefetch2cachelines(void *x)
+{
+}
 #endif
 
 static void