shared: Add get_le16()

Add helper to avoid possible unaligned memory access when handling
uint16 value using little-endian representation.

diff --git a/src/shared/util.h b/src/shared/util.h
index a129272..ef845ae 100644 (file)
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -101,6 +101,11 @@ static inline void bswap_128(const void *src, void *dst)
                d[15 - i] = s[i];
 }
 
+static inline uint16_t get_le16(const void *ptr)
+{
+       return le16_to_cpu(get_unaligned((const uint16_t *) ptr));
+}
+
 static inline void put_le16(uint16_t val, void *dst)
 {
        put_unaligned(cpu_to_le16(val), (uint16_t *) dst);