# \[PATCH v6 3/8\] macvtap: introduce macvtap\_is\_little\_endian() helper

- From: Greg Kurz \<hidden\>
- Date: 2015-04-24 12:24:59 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2015/04/4478262
- Thread: https://ratatoskr.run/kvm/2015/04/4478259/t.md

```text
Signed-off-by: Greg Kurz <redacted>
---
 drivers/net/macvtap.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 27ecc5c..a2f2958 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -49,14 +49,19 @@ struct macvtap_queue {
 
 #define MACVTAP_VNET_LE 0x80000000
 
+static inline bool macvtap_is_little_endian(struct macvtap_queue *q)
+{
+	return q->flags & MACVTAP_VNET_LE;
+}
+
 static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val)
 {
-	return __virtio16_to_cpu(q->flags & MACVTAP_VNET_LE, val);
+	return __virtio16_to_cpu(macvtap_is_little_endian(q), val);
 }
 
 static inline __virtio16 cpu_to_macvtap16(struct macvtap_queue *q, u16 val)
 {
-	return __cpu_to_virtio16(q->flags & MACVTAP_VNET_LE, val);
+	return __cpu_to_virtio16(macvtap_is_little_endian(q), val);
 }
 
 static struct proto macvtap_proto = {
```