[PATCH] lib/crc32.c: to use compiler.h defines

[Clay Haapala <chaapala@cisco.com>]

On Fri, 23 Apr 2004, David S. Miller told this:
> On Mon, 19 Apr 2004 16:37:01 -0500
> Clay Haapala <chaapala@cisco.com> wrote:
> 
>> +#if __GNUC__ >= 3 /* 2.x has "attribute", but only 3.0 has "pure
>> +*/ #define attribute(x) __attribute__(x) #else #define
>> +attribute(x) #endif
> 
> I was about to apply your two patches, but then I noticed this
> thing.  WHatever you may need this for exists in linux/compiler.h
> and if it doesn't you should add the necessary macro interfaces
> there.
> 
> Thanks.

Below is a patch to lib/crc32.c to use the compiler.h define for
attribute((pure)).
-- 
Clay Haapala (chaapala@cisco.com) Cisco Systems SRBU +1 763-398-1056
   6450 Wedgwood Rd, Suite 130 Maple Grove MN 55311 PGP: C89240AD
  "Oh, *that* Physics Prize.  Well, I just substituted 'stupidity' for
      'dark matter' in the equations, and it all came together."

--- linux-2.6.5.orig/lib/crc32.c	Sat Apr  3 21:36:14 2004
+++ linux-2.6.5/lib/crc32.c	Tue Apr 27 14:48:03 2004
@@ -37,13 +37,6 @@
 #endif
 #include "crc32table.h"
 
-#if __GNUC__ >= 3	/* 2.x has "attribute", but only 3.0 has "pure */
-#define attribute(x) __attribute__(x)
-#else
-#define attribute(x)
-#endif
-
-
 MODULE_AUTHOR("Matt Domsch <Matt_Domsch@dell.com>");
 MODULE_DESCRIPTION("Ethernet CRC32 calculations");
 MODULE_LICENSE("GPL");
@@ -62,7 +55,7 @@
  * @len - length of buffer @p
  * 
  */
-u32 attribute((pure)) crc32_le(u32 crc, unsigned char const *p, size_t len)
+u32 __attribute_pure__ crc32_le(u32 crc, unsigned char const *p, size_t len)
 {
 	int i;
 	while (len--) {
@@ -82,7 +75,7 @@
  * @len - length of buffer @p
  * 
  */
-u32 attribute((pure)) crc32_le(u32 crc, unsigned char const *p, size_t len)
+u32 __attribute_pure__ crc32_le(u32 crc, unsigned char const *p, size_t len)
 {
 # if CRC_LE_BITS == 8
 	const u32      *b =(u32 *)p;
@@ -165,7 +158,7 @@
  * @len - length of buffer @p
  * 
  */
-u32 attribute((pure)) crc32_be(u32 crc, unsigned char const *p, size_t len)
+u32 __attribute_pure__ crc32_be(u32 crc, unsigned char const *p, size_t len)
 {
 	int i;
 	while (len--) {
@@ -187,7 +180,7 @@
  * @len -