usb: phy: don't check resource with devm_ioremap_resource

[~andy/linux] / drivers / vhost / net.c

diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 99f8d63491aa2723ecd63e77241b8b1ebfdf3606..969a85960e9f6bf09a5bb9a6b1ea828d9f5ae9fb 100644 (file)
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -15,7 +15,6 @@
 #include <linux/moduleparam.h>
 #include <linux/mutex.h>
 #include <linux/workqueue.h>
-#include <linux/rcupdate.h>
 #include <linux/file.h>
 #include <linux/slab.h>
 
@@ -749,8 +748,7 @@ static int vhost_net_enable_vq(struct vhost_net *n,
        struct vhost_poll *poll = n->poll + (nvq - n->vqs);
        struct socket *sock;
 
-       sock = rcu_dereference_protected(vq->private_data,
-                                        lockdep_is_held(&vq->mutex));
+       sock = vq->private_data;
        if (!sock)
                return 0;
 
@@ -763,10 +761,9 @@ static struct socket *vhost_net_stop_vq(struct vhost_net *n,
        struct socket *sock;
 
        mutex_lock(&vq->mutex);
-       sock = rcu_dereference_protected(vq->private_data,
-                                        lockdep_is_held(&vq->mutex));
+       sock = vq->private_data;
        vhost_net_disable_vq(n, vq);
-       rcu_assign_pointer(vq->private_data, NULL);
+       vq->private_data = NULL;
        mutex_unlock(&vq->mutex);
        return sock;
 }
@@ -922,8 +919,7 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
        }
 
        /* start polling new socket */
-       oldsock = rcu_dereference_protected(vq->private_data,
-                                           lockdep_is_held(&vq->mutex));
+       oldsock = vq->private_data;
        if (sock != oldsock) {
                ubufs = vhost_net_ubuf_alloc(vq,
                                             sock && vhost_sock_zcopy(sock));
@@ -933,7 +929,7 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
                }
 
                vhost_net_disable_vq(n, vq);
-               rcu_assign_pointer(vq->private_data, sock);
+               vq->private_data = sock;
                r = vhost_init_used(vq);
                if (r)
                        goto err_used;
@@ -967,7 +963,7 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
        return 0;
 
 err_used:
-       rcu_assign_pointer(vq->private_data, oldsock);
+       vq->private_data = oldsock;
        vhost_net_enable_vq(n, vq);
        if (ubufs)
                vhost_net_ubuf_put_wait_and_free(ubufs);