From: "Michael S. Tsirkin" <mst@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: David Miller <davem@davemloft.net>,
cornelia.huck@de.ibm.com, rusty@au1.ibm.com, nab@linux-iscsi.org,
pbonzini@redhat.com, thuth@linux.vnet.ibm.com,
dahi@linux.vnet.ibm.com,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>,
Ben Hutchings <ben@decadent.org.uk>,
Jason Wang <jasowang@redhat.com>,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org
Subject: [PATCH v8 29/50] vhost: make features 64 bit
Date: Mon, 1 Dec 2014 18:05:09 +0200 [thread overview]
Message-ID: <1417449619-24896-30-git-send-email-mst@redhat.com> (raw)
In-Reply-To: <1417449619-24896-1-git-send-email-mst@redhat.com>
We need to use bit 32 for virtio 1.0.
Make vhost_has_feature bool to avoid discarding high bits.
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
---
drivers/vhost/vhost.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index 3eda654..55a95c9 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -106,7 +106,7 @@ struct vhost_virtqueue {
/* Protected by virtqueue mutex. */
struct vhost_memory *memory;
void *private_data;
- unsigned acked_features;
+ u64 acked_features;
/* Log write descriptors */
void __user *log_base;
struct vhost_log *log;
@@ -172,8 +172,8 @@ enum {
(1ULL << VHOST_F_LOG_ALL),
};
-static inline int vhost_has_feature(struct vhost_virtqueue *vq, int bit)
+static inline bool vhost_has_feature(struct vhost_virtqueue *vq, int bit)
{
- return vq->acked_features & (1 << bit);
+ return vq->acked_features & (1ULL << bit);
}
#endif
--
MST
next prev parent reply other threads:[~2014-12-01 16:05 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1417449619-24896-1-git-send-email-mst@redhat.com>
2014-12-01 16:04 ` [PATCH v8 15/50] virtio_net: v1.0 endianness Michael S. Tsirkin
2014-12-01 16:04 ` [PATCH v8 23/50] virtio_net: pass vi around Michael S. Tsirkin
2014-12-01 16:04 ` [PATCH v8 24/50] virtio_net: get rid of virtio_net_hdr/skb_vnet_hdr Michael S. Tsirkin
2014-12-01 16:04 ` [PATCH v8 25/50] virtio_net: stricter short buffer length checks Michael S. Tsirkin
2014-12-01 16:04 ` [PATCH v8 26/50] virtio_net: bigger header when VERSION_1 is set Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 27/50] virtio_net: disable mac write for virtio 1.0 Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 28/50] virtio_net: enable v1.0 support Michael S. Tsirkin
2014-12-01 16:05 ` Michael S. Tsirkin [this message]
2014-12-01 16:05 ` [PATCH v8 30/50] vhost: add memory access wrappers Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 31/50] vhost/net: force len for TX to host endian Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 32/50] vhost: switch to __get/__put_user exclusively Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 33/50] vhost: virtio 1.0 endian-ness support Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 34/50] vhost/net: virtio 1.0 byte swap Michael S. Tsirkin
2015-01-06 23:55 ` Alex Williamson
2015-01-07 8:31 ` Greg Kurz
2015-01-07 8:57 ` Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 35/50] vhost/net: larger header for virtio 1.0 Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 36/50] vhost/net: enable " Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 37/50] tun: move internal flag defines out of uapi Michael S. Tsirkin
2014-12-01 16:05 ` [PATCH v8 38/50] tun: drop most type defines Michael S. Tsirkin
2014-12-01 16:06 ` [PATCH v8 39/50] tun: add VNET_LE flag Michael S. Tsirkin
2014-12-01 16:06 ` [PATCH v8 40/50] tun: TUN_VNET_LE support, fix sparse warnings for virtio headers Michael S. Tsirkin
2014-12-01 16:06 ` [PATCH v8 41/50] macvtap: TUN_VNET_LE support Michael S. Tsirkin
2014-12-01 16:06 ` [PATCH v8 45/50] vhost/scsi: partial virtio 1.0 support Michael S. Tsirkin
2014-12-01 16:06 ` [PATCH v8 46/50] af_packet: virtio 1.0 stubs Michael S. Tsirkin
2014-12-01 16:06 ` [PATCH v8 50/50] virtio: drop VIRTIO_F_VERSION_1 from drivers Michael S. Tsirkin
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