[BLUETOOTH]: Introduce skb->data accessor methods for hci_{acl,event,sco}_hdr

For consistency with other skb data accessors, reducing the number of direct
accesses to skb->data.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 41456c14884..93ce272a5d2 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -709,6 +709,24 @@ struct hci_sco_hdr {
         __u8    dlen;
 } __attribute__ ((packed));
 
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+static inline struct hci_event_hdr *hci_event_hdr(const struct sk_buff *skb)
+{
+        return (struct hci_event_hdr *)skb->data;
+}
+
+static inline struct hci_acl_hdr *hci_acl_hdr(const struct sk_buff *skb)
+{
+        return (struct hci_acl_hdr *)skb->data;
+}
+
+static inline struct hci_sco_hdr *hci_sco_hdr(const struct sk_buff *skb)
+{
+        return (struct hci_sco_hdr *)skb->data;
+}
+#endif
+
 /* Command opcode pack/unpack */
 #define hci_opcode_pack(ogf, ocf)       (__u16) ((ocf & 0x03ff)|(ogf << 10))
 #define hci_opcode_ogf(op)              (op >> 10)