This reverts this upstream patch for older kernel versions:
commit 9f87eaae842575ec7de51654127a9bf4ad07ad6d
Author: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Date: Sat Aug 23 11:28:14 2014 -0400
switch hci_vhci to ->write_iter()
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
.../network/0047-write_iter/bluetooth.patch | 83 ++++++++++++++++++++++
1 file changed, 83 insertions(+)
create mode 100644 patches/collateral-evolutions/network/0047-write_iter/bluetooth.patch
diff --git a/patches/collateral-evolutions/network/0047-write_iter/bluetooth.patch b/patches/collateral-evolutions/network/0047-write_iter/bluetooth.patch
new file mode 100644
index 0000000..692b777
--- /dev/null
+++ b/patches/collateral-evolutions/network/0047-write_iter/bluetooth.patch
@@ -0,0 +1,83 @@
+--- a/drivers/bluetooth/hci_vhci.c
++++ b/drivers/bluetooth/hci_vhci.c
+@@ -159,6 +159,7 @@ static int vhci_create_device(struct vhc
+ return 0;
+ }
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
+ static inline ssize_t vhci_get_user(struct vhci_data *data,
+ struct iov_iter *from)
+ {
+@@ -166,6 +167,17 @@ static inline ssize_t vhci_get_user(stru
+ struct sk_buff *skb;
+ __u8 pkt_type, opcode;
+ int ret;
++#else
++static inline ssize_t vhci_get_user(struct vhci_data *data,
++ const struct iovec *iov,
++ unsigned long count)
++{
++ size_t len = iov_length(iov, count);
++ struct sk_buff *skb;
++ __u8 pkt_type, opcode;
++ unsigned long i;
++ int ret;
++#endif
+
+ if (len < 2 || len > HCI_MAX_FRAME_SIZE)
+ return -EINVAL;
+@@ -174,10 +186,20 @@ static inline ssize_t vhci_get_user(stru
+ if (!skb)
+ return -ENOMEM;
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
+ if (copy_from_iter(skb_put(skb, len), len, from) != len) {
+ kfree_skb(skb);
+ return -EFAULT;
+ }
++#else
++ for (i = 0; i < count; i++) {
++ if (copy_from_user(skb_put(skb, iov[i].iov_len),
++ iov[i].iov_base, iov[i].iov_len)) {
++ kfree_skb(skb);
++ return -EFAULT;
++ }
++ }
++#endif
+
+ pkt_type = *((__u8 *) skb->data);
+ skb_pull(skb, 1);
+@@ -289,12 +311,21 @@ static ssize_t vhci_read(struct file *fi
+ return ret;
+ }
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
+ static ssize_t vhci_write(struct kiocb *iocb, struct iov_iter *from)
++#else
++static ssize_t vhci_write(struct kiocb *iocb, const struct iovec *iov,
++ unsigned long count, loff_t pos)
++#endif
+ {
+ struct file *file = iocb->ki_filp;
+ struct vhci_data *data = file->private_data;
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
+ return vhci_get_user(data, from);
++#else
++ return vhci_get_user(data, iov, count);
++#endif
+ }
+
+ static unsigned int vhci_poll(struct file *file, poll_table *wait)
+@@ -359,7 +390,11 @@ static int vhci_release(struct inode *in
+ static const struct file_operations vhci_fops = {
+ .owner = THIS_MODULE,
+ .read = vhci_read,
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
+ .write_iter = vhci_write,
++#else
++ .aio_write = vhci_write,
++#endif
+ .poll = vhci_poll,
+ .open = vhci_open,
+ .release = vhci_release,
--
1.9.1
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