X-Git-Url: http://git.onelab.eu/?p=linux-2.6.git;a=blobdiff_plain;f=include%2Flinux%2Fbyteorder%2Fgeneric.h;fp=include%2Flinux%2Fbyteorder%2Fgeneric.h;h=e86e4a938373e15a3a8edcbb07802a5c9274bb02;hp=5fde6f4d6c1e3692b0abd52945e48721f428410d;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hpb=cee37fe97739d85991964371c1f3a745c00dd236

diff --git a/include/linux/byteorder/generic.h b/include/linux/byteorder/generic.h
index 5fde6f4d6..e86e4a938 100644
--- a/include/linux/byteorder/generic.h
+++ b/include/linux/byteorder/generic.h
@@ -5,6 +5,10 @@
  * linux/byteorder_generic.h
  * Generic Byte-reordering support
  *
+ * The "... p" macros, like le64_to_cpup, can be used with pointers
+ * to unaligned data, but there will be a performance penalty on 
+ * some architectures.  Use get_unaligned for unaligned data.
+ *
  * Francois-Rene Rideau <fare@tunes.org> 19970707
  *    gathered all the good ideas from all asm-foo/byteorder.h into one file,
  *    cleaned them up.
@@ -152,7 +156,7 @@ extern __be32			htonl(__u32);
 extern __u16			ntohs(__be16);
 extern __be16			htons(__u16);
 
-#if defined(__GNUC__) && (__GNUC__ >= 2) && defined(__OPTIMIZE__)
+#if defined(__GNUC__) && defined(__OPTIMIZE__)
 
 #define ___htonl(x) __cpu_to_be32(x)
 #define ___htons(x) __cpu_to_be16(x)