arch/x86/um/asm/checksum_64.h

   1 /*
   2  * Licensed under the GPL
   3  */
   4
   5 #ifndef __UM_SYSDEP_CHECKSUM_H
   6 #define __UM_SYSDEP_CHECKSUM_H
   7
   8 static inline unsigned add32_with_carry(unsigned a, unsigned b)
   9 {
  10         asm("addl %2,%0\n\t"
  11             "adcl $0,%0"
  12             : "=r" (a)
  13             : "0" (a), "r" (b));
  14         return a;
  15 }
  16
  17 extern __sum16 ip_compute_csum(const void *buff, int len);
  18
  19 #endif