arch/arm/lib/csumipv6.S

   1 /*
   2  *  linux/arch/arm/lib/csumipv6.S
   3  *
   4  *  Copyright (C) 1995-1998 Russell King
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #include <linux/linkage.h>
  11 #include <asm/assembler.h>
  12
  13                 .text
  14
  15 ENTRY(__csum_ipv6_magic)
  16                 str     lr, [sp, #-4]!
  17                 adds    ip, r2, r3
  18                 ldmia   r1, {r1 - r3, lr}
  19                 adcs    ip, ip, r1
  20                 adcs    ip, ip, r2
  21                 adcs    ip, ip, r3
  22                 adcs    ip, ip, lr
  23                 ldmia   r0, {r0 - r3}
  24                 adcs    r0, ip, r0
  25                 adcs    r0, r0, r1
  26                 adcs    r0, r0, r2
  27                 ldr     r2, [sp, #4]
  28                 adcs    r0, r0, r3
  29                 adcs    r0, r0, r2
  30                 adcs    r0, r0, #0
  31                 ldmfd   sp!, {pc}
  32 ENDPROC(__csum_ipv6_magic)
  33