Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030822AbbDWTFO (ORCPT ); Thu, 23 Apr 2015 15:05:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43408 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030531AbbDWTFK (ORCPT ); Thu, 23 Apr 2015 15:05:10 -0400 Date: Thu, 23 Apr 2015 21:05:02 +0200 From: Thomas Huth To: Greg Kurz Cc: Rusty Russell , "Michael S. Tsirkin" , Cornelia Huck , linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH v5 5/8] vhost: introduce vhost_is_little_endian() helper Message-ID: <20150423210502.1d97ca77@thh440s> In-Reply-To: <20150423152700.11795.9146.stgit@bahia.local> References: <20150423152608.11795.4373.stgit@bahia.local> <20150423152700.11795.9146.stgit@bahia.local> Organization: Red Hat MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2425 Lines: 65 On Thu, 23 Apr 2015 17:27:05 +0200 Greg Kurz wrote: > 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 Reviewed-by: Thomas Huth -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/