diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/9p/trans_virtio.c | 16 | ||||
| -rw-r--r-- | net/rxrpc/ar-key.c | 24 |
2 files changed, 12 insertions, 28 deletions
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 6e70ddb158b4..199bc76202d2 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -105,7 +105,7 @@ static struct list_head virtio_chan_list; /* How many bytes left in this page. */ static unsigned int rest_of_page(void *data) { - return PAGE_SIZE - ((unsigned long)data % PAGE_SIZE); + return PAGE_SIZE - offset_in_page(data); } /** @@ -143,7 +143,6 @@ static void p9_virtio_close(struct p9_client *client) static void req_done(struct virtqueue *vq) { struct virtio_chan *chan = vq->vdev->priv; - struct p9_fcall *rc; unsigned int len; struct p9_req_t *req; unsigned long flags; @@ -152,8 +151,8 @@ static void req_done(struct virtqueue *vq) while (1) { spin_lock_irqsave(&chan->lock, flags); - rc = virtqueue_get_buf(chan->vq, &len); - if (rc == NULL) { + req = virtqueue_get_buf(chan->vq, &len); + if (req == NULL) { spin_unlock_irqrestore(&chan->lock, flags); break; } @@ -161,9 +160,6 @@ static void req_done(struct virtqueue *vq) spin_unlock_irqrestore(&chan->lock, flags); /* Wakeup if anyone waiting for VirtIO ring space. */ wake_up(chan->vc_wq); - p9_debug(P9_DEBUG_TRANS, ": rc %p\n", rc); - p9_debug(P9_DEBUG_TRANS, ": lookup tag %d\n", rc->tag); - req = p9_tag_lookup(chan->client, rc->tag); p9_client_cb(chan->client, req, REQ_STATUS_RCVD); } } @@ -284,7 +280,7 @@ req_retry: if (in) sgs[out_sgs + in_sgs++] = chan->sg + out; - err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req->tc, + err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req, GFP_ATOMIC); if (err < 0) { if (err == -ENOSPC) { @@ -369,7 +365,7 @@ static int p9_get_mapped_pages(struct virtio_chan *chan, return -ENOMEM; *need_drop = 0; - p -= (*offs = (unsigned long)p % PAGE_SIZE); + p -= (*offs = offset_in_page(p)); for (index = 0; index < nr_pages; index++) { if (is_vmalloc_addr(p)) (*pages)[index] = vmalloc_to_page(p); @@ -469,7 +465,7 @@ req_retry_pinned: } BUG_ON(out_sgs + in_sgs > ARRAY_SIZE(sgs)); - err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req->tc, + err = virtqueue_add_sgs(chan->vq, sgs, out_sgs, in_sgs, req, GFP_ATOMIC); if (err < 0) { if (err == -ENOSPC) { diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c index da3cc09f683e..3f6571651d32 100644 --- a/net/rxrpc/ar-key.c +++ b/net/rxrpc/ar-key.c @@ -896,15 +896,9 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen) if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL; - description = kmalloc(optlen + 1, GFP_KERNEL); - if (!description) - return -ENOMEM; - - if (copy_from_user(description, optval, optlen)) { - kfree(description); - return -EFAULT; - } - description[optlen] = 0; + description = memdup_user_nul(optval, optlen); + if (IS_ERR(description)) + return PTR_ERR(description); key = request_key(&key_type_rxrpc, description, NULL); if (IS_ERR(key)) { @@ -933,15 +927,9 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval, if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL; - description = kmalloc(optlen + 1, GFP_KERNEL); - if (!description) - return -ENOMEM; - - if (copy_from_user(description, optval, optlen)) { - kfree(description); - return -EFAULT; - } - description[optlen] = 0; + description = memdup_user_nul(optval, optlen); + if (IS_ERR(description)) + return PTR_ERR(description); key = request_key(&key_type_keyring, description, NULL); if (IS_ERR(key)) { |