Re: [RFC v4 15/18] Refactor bt_get_unaligned macro

Use extra parameter type for bt_get_unaligned to avoid pointer casting
which might trigger compile time errors due to unaligned memory access.

---
 attrib/att.h       |    6 +++---
 lib/bluetooth.h    |   28 ++++++++++++++--------------
 lib/sdp.c          |   22 +++++++++++-----------
 src/sdpd-request.c |    4 ++--
 4 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/attrib/att.h b/attrib/att.h
index a563255..6101dac 100644
--- a/attrib/att.h
+++ b/attrib/att.h

@@ -115,19 +115,19 @@ struct att_range {
 static inline uint8_t att_get_u8(const void *ptr)
 {
 	const uint8_t *u8_ptr = ptr;
-	return bt_get_unaligned(u8_ptr);
+	return bt_get_unaligned(u8_ptr, uint8_t);
 }
 
 static inline uint16_t att_get_u16(const void *ptr)
 {
 	const uint16_t *u16_ptr = ptr;
-	return btohs(bt_get_unaligned(u16_ptr));
+	return btohs(bt_get_unaligned(u16_ptr, uint16_t));
 }
 
 static inline uint32_t att_get_u32(const void *ptr)
 {
 	const uint32_t *u32_ptr = ptr;
-	return btohl(bt_get_unaligned(u32_ptr));
+	return btohl(bt_get_unaligned(u32_ptr, uint32_t));
 }
 
 static inline uint128_t att_get_u128(const void *ptr)

diff --git a/lib/bluetooth.h b/lib/bluetooth.h
index 161b7bd..898a122 100644
--- a/lib/bluetooth.h
+++ b/lib/bluetooth.h

@@ -137,10 +137,10 @@ enum {
 #endif
 
 /* Bluetooth unaligned access */
-#define bt_get_unaligned(ptr)			\
+#define bt_get_unaligned(ptr, type)		\
 ({						\
 	struct __attribute__((packed)) {	\
-		typeof(*(ptr)) __v;		\
+		type __v;			\
 	} *__p = (typeof(__p)) (ptr);		\
 	__p->__v;				\
 })