um/asm/checksum_64.h

0001 /*
0002  * Licensed under the GPL
0003  */
0004
0005 #ifndef __UM_SYSDEP_CHECKSUM_H
0006 #define __UM_SYSDEP_CHECKSUM_H
0007
0008 static inline unsigned add32_with_carry(unsigned a, unsigned b)
0009 {
0010         asm("addl %2,%0\n\t"
0011             "adcl $0,%0"
0012             : "=r" (a)
0013             : "0" (a), "r" (b));
0014         return a;
0015 }
0016
0017 extern __sum16 ip_compute_csum(const void *buff, int len);
0018
0019 #endif