Update Linux to v5.10.157
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.157.tar.xz
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I7b30d9e98d8c465d6b44de8e7433b4a40b3289ba
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 9125eff..3558356 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -180,19 +180,21 @@
#define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
#endif
+#define bt_dev_name(hdev) ((hdev) ? (hdev)->name : "null")
+
#define bt_dev_info(hdev, fmt, ...) \
- BT_INFO("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+ BT_INFO("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
#define bt_dev_warn(hdev, fmt, ...) \
- BT_WARN("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+ BT_WARN("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
#define bt_dev_err(hdev, fmt, ...) \
- BT_ERR("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+ BT_ERR("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
#define bt_dev_dbg(hdev, fmt, ...) \
- BT_DBG("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+ BT_DBG("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
#define bt_dev_warn_ratelimited(hdev, fmt, ...) \
- bt_warn_ratelimited("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+ bt_warn_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
#define bt_dev_err_ratelimited(hdev, fmt, ...) \
- bt_err_ratelimited("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
+ bt_err_ratelimited("%s: " fmt, bt_dev_name(hdev), ##__VA_ARGS__)
/* Connection and socket states */
enum {
@@ -420,6 +422,71 @@
return NULL;
}
+/* Shall not be called with lock_sock held */
+static inline struct sk_buff *bt_skb_sendmsg(struct sock *sk,
+ struct msghdr *msg,
+ size_t len, size_t mtu,
+ size_t headroom, size_t tailroom)
+{
+ struct sk_buff *skb;
+ size_t size = min_t(size_t, len, mtu);
+ int err;
+
+ skb = bt_skb_send_alloc(sk, size + headroom + tailroom,
+ msg->msg_flags & MSG_DONTWAIT, &err);
+ if (!skb)
+ return ERR_PTR(err);
+
+ skb_reserve(skb, headroom);
+ skb_tailroom_reserve(skb, mtu, tailroom);
+
+ if (!copy_from_iter_full(skb_put(skb, size), size, &msg->msg_iter)) {
+ kfree_skb(skb);
+ return ERR_PTR(-EFAULT);
+ }
+
+ skb->priority = sk->sk_priority;
+
+ return skb;
+}
+
+/* Similar to bt_skb_sendmsg but can split the msg into multiple fragments
+ * accourding to the MTU.
+ */
+static inline struct sk_buff *bt_skb_sendmmsg(struct sock *sk,
+ struct msghdr *msg,
+ size_t len, size_t mtu,
+ size_t headroom, size_t tailroom)
+{
+ struct sk_buff *skb, **frag;
+
+ skb = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
+ if (IS_ERR_OR_NULL(skb))
+ return skb;
+
+ len -= skb->len;
+ if (!len)
+ return skb;
+
+ /* Add remaining data over MTU as continuation fragments */
+ frag = &skb_shinfo(skb)->frag_list;
+ while (len) {
+ struct sk_buff *tmp;
+
+ tmp = bt_skb_sendmsg(sk, msg, len, mtu, headroom, tailroom);
+ if (IS_ERR(tmp)) {
+ return skb;
+ }
+
+ len -= tmp->len;
+
+ *frag = tmp;
+ frag = &(*frag)->next;
+ }
+
+ return skb;
+}
+
int bt_to_errno(u16 code);
void hci_sock_set_flag(struct sock *sk, int nr);