From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kurz Subject: [PATCH v4 5/8] vhost: introduce vhost_is_little_endian() helper Date: Fri, 10 Apr 2015 12:16:09 +0200 Message-ID: <20150410101605.31843.27429.stgit@bahia.local> References: <20150410101500.31843.61248.stgit@bahia.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150410101500.31843.61248.stgit@bahia.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Rusty Russell , "Michael S. Tsirkin" Cc: linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org List-Id: linux-api@vger.kernel.org Signed-off-by: Greg Kurz --- drivers/vhost/vhost.h | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 8c1c792..6a49960 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -173,34 +173,39 @@ static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit) return vq->acked_features & (1ULL << bit); } +static inline bool vhost_is_little_endian(struct vhost_virtqueue *vq) +{ + return vhost_has_feature(vq, VIRTIO_F_VERSION_1); +} + /* Memory accessors */ static inline u16 vhost16_to_cpu(struct vhost_virtqueue *vq, __virtio16 val) { - return __virtio16_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __virtio16_to_cpu(vhost_is_little_endian(vq), val); } static inline __virtio16 cpu_to_vhost16(struct vhost_virtqueue *vq, u16 val) { - return __cpu_to_virtio16(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio16(vhost_is_little_endian(vq), val); } static inline u32 vhost32_to_cpu(struct vhost_virtqueue *vq, __virtio32 val) { - return __virtio32_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __virtio32_to_cpu(vhost_is_little_endian(vq), val); } static inline __virtio32 cpu_to_vhost32(struct vhost_virtqueue *vq, u32 val) { - return __cpu_to_virtio32(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio32(vhost_is_little_endian(vq), val); } static inline u64 vhost64_to_cpu(struct vhost_virtqueue *vq, __virtio64 val) { - return __virtio64_to_cpu(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __virtio64_to_cpu(vhost_is_little_endian(vq), val); } static inline __virtio64 cpu_to_vhost64(struct vhost_virtqueue *vq, u64 val) { - return __cpu_to_virtio64(vhost_has_feature(vq, VIRTIO_F_VERSION_1), val); + return __cpu_to_virtio64(vhost_is_little_endian(vq), val); } #endif