From: Eli Cohen <[email protected]>

[ Upstream commit 36bdcf318bc21af24de10b68e32cdea6b9a8d17f ]

Introduce a dedicated function to be used for setting 16 bit fields per
virio endianness requirements and use it to set the mtu field.

Signed-off-by: Eli Cohen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
---
 drivers/vdpa/mlx5/net/mlx5_vnet.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c 
b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 74264e5906951..56228467d7ec6 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -1522,6 +1522,11 @@ static inline bool mlx5_vdpa_is_little_endian(struct 
mlx5_vdpa_dev *mvdev)
                (mvdev->actual_features & (1ULL << VIRTIO_F_VERSION_1));
 }
 
+static __virtio16 cpu_to_mlx5vdpa16(struct mlx5_vdpa_dev *mvdev, u16 val)
+{
+       return __cpu_to_virtio16(mlx5_vdpa_is_little_endian(mvdev), val);
+}
+
 static int mlx5_vdpa_set_features(struct vdpa_device *vdev, u64 features)
 {
        struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev);
@@ -1535,8 +1540,7 @@ static int mlx5_vdpa_set_features(struct vdpa_device 
*vdev, u64 features)
                return err;
 
        ndev->mvdev.actual_features = features & ndev->mvdev.mlx_features;
-       ndev->config.mtu = __cpu_to_virtio16(mlx5_vdpa_is_little_endian(mvdev),
-                                            ndev->mtu);
+       ndev->config.mtu = cpu_to_mlx5vdpa16(mvdev, ndev->mtu);
        return err;
 }
 
-- 
2.25.1



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