On Thu, Jun 04, 2009 at 09:03:47PM +0200, Wolfgang Denk wrote:
+static inline u16 get_unaligned_le16(const void *p) +{
- return __get_unaligned_cpu16((const u8 *)p);
+}
+static inline u32 get_unaligned_le32(const void *p) +{
- return __get_unaligned_cpu32((const u8 *)p);
+}
+static inline u64 get_unaligned_le64(const void *p) +{
- return __get_unaligned_cpu64((const u8 *)p);
+}
Are these 3 really all "u8" pointers, or is this a copy & paste error?
Yes, this is how it came from the Linux kernel and my tests show that these access methods work well.
Is there any guarantee that such macros are never used on device registers and the like?
Well - how can I guarantee that? Anyway - the functions can be enhanced later to make them work with different types of memories. For now, they implement a working set of functions to allow ubifs (and probably other code as well) to be compiled and ran on ARMs.
Daniel