patch-2.4.21 linux-2.4.21/include/asm-x86_64/checksum.h

• Lines: 24
• Date: 2003-06-13 07:51:38.000000000 -0700
• Orig file: linux-2.4.20/include/asm-x86_64/checksum.h
• Orig date: 2002-11-28 15:53:15.000000000 -0800

diff -urN linux-2.4.20/include/asm-x86_64/checksum.h linux-2.4.21/include/asm-x86_64/checksum.h
@@ -125,7 +125,7 @@
  * Before filling it in it needs to be csum_fold()'ed.
  * buff should be aligned to a 64bit boundary if possible.
  */ 
-extern unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum);
+extern unsigned int csum_partial(const unsigned char *buff, unsigned len, unsigned int sum);
 
 #define  _HAVE_ARCH_COPY_AND_CSUM_FROM_USER 1
 #define HAVE_CSUM_COPY_USER 1
@@ -179,4 +179,14 @@
 csum_ipv6_magic(struct in6_addr *saddr, struct in6_addr *daddr,
 		__u32 len, unsigned short proto, unsigned int sum);
 
+static inline unsigned add32_with_carry(unsigned a, unsigned b)
+{
+	asm("addl %2,%0\n\t"
+	    "adcl $0,%0" 
+	    : "=r" (a) 
+	    : "0" (a), "r" (b));
+	return a;
+}
+
 #endif
+