From: Arthur Kiyanovski <akiyano@amazon.com>
Date: Sun, 21 Oct 2018 18:07:14 +0300
Subject: [PATCH 16/19] net: ena: fix compilation error in xtensa architecture
Origin: https://git.kernel.org/linus/00f17a8219f02139119d8b4547e032bf4888fa0d

linux/prefetch.h is never explicitly included in ena_com, although
functions from it, such as prefetchw(), are used throughout ena_com.
This is an inclusion bug, and we fix it here by explicitly including
linux/prefetch.h. The bug was exposed when the driver was compiled
for the xtensa architecture.

Fixes: 689b2bdaaa14 ("net: ena: add functions for handling Low Latency Queues in ena_com")
Fixes: 8c590f977638 ("ena: Fix Kconfig dependency on X86")
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/amazon/ena/ena_com.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/amazon/ena/ena_com.h b/drivers/net/ethernet/amazon/ena/ena_com.h
index ae8b4857fce3..078d6f2b4f39 100644
--- a/drivers/net/ethernet/amazon/ena/ena_com.h
+++ b/drivers/net/ethernet/amazon/ena/ena_com.h
@@ -38,6 +38,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/gfp.h>
 #include <linux/io.h>
+#include <linux/prefetch.h>
 #include <linux/sched.h>
 #include <linux/sizes.h>
 #include <linux/spinlock.h>
-- 
2.19.2

