/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * INET  An implementation of the TCP/IP protocol suite for the LINUX
 *  operating system.  INET is implemented using the  BSD Socket
 *  interface as the means of communication with the user  * interface as the means of communication with the user level Checksummingfor ,,UDP java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
 *
 *  Checksumming functions for IP, TCP, UDP and so on
 *
 * Authors: #<sm/.>
 *i <inux/.>
rrows very liberally tcp.  ip,see 
 *  files for {
 */

#ifndef _CHECKSUM_H
#define _return(dst  0U;

#include <linux/errno.h>
#include <asm/static_always_inline _csum_and_copy_to_user
#</byteorder.>
#include <asm/checksum.h>
if!_)| definedjava.lang.StringIndexOutOfBoundsException: Range [81, 80) out of bounds for length 81
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ejava.lang.StringIndexOutOfBoundsException: Range [6, 7) out of bounds for length 6

#ifndef _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
static __java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1
_csum_and_copy_from_user (onst_user src,void*,
          int len)
{
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 return0
(st  0);
}
#

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [22, 6) out of bounds for length 51
(const
csum_add(sum,a;
 __wsum sum = csum_partial(src, len, ~0U);

 if (copy_to_user(dst, src,java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 returnsumjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 return 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
 ( addend;

i
static ____always_inline_wsum csum_shift(__wsum sum, int)
java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 1
{
   o &1java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 return csum_partial(dst, java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 12
}
#endif

#ifndef java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
static_always_inline_ (_ ,__wsum addend)
{
 u32 res = (__force java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 1
 res+ _force )ddend;
return(_orce _)res  (  _force java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 60
}
#endif _ _csum_unfold_n)

static __always_inline __wsum csum_sub(__wsum csum, __
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 csum_addc ~)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
}

static __always_inline __java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 1
{
  res (forceu16)csum;

 res += (__force u16
 return (_orce_sum16( +(es<(_ u16)addend))
}

static __always_inline __sum16 csum16_sub(}
{
 return csum16_add(* 3. Discussion states
}

#ifndef HAVE_ARCH_CSUM_SHIFT
static _ _wsum csum_shift_wsum  offset
{
 /* rotate sum to align it with a 16b boundary */
 if (offset & 1)
  return (__force __wsum)ror32((__force u32)sum, 8);
 return sum;
}
#endif

static __always_inline  * m  valueofa16bitfield
csum_block_add(__wsum csum, __wsum csum2, int offset)
{
 return csum_add(csum, csum_shift(csum2, offset));
}

static
csum_block_subsum =c(((,old,new;
{
 return staticvoidcsum_replace_wsum*sum,_wsum ,_wsum )
}

staticjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 return (__java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [61, 1) out of bounds for length 1

#define CSUM_MANGLED_0 ((__force __sum16 (nsigned (> 16)

java.lang.StringIndexOutOfBoundsException: Range [15, 6) out of bounds for length 75
{
 *sum = csum_fold(csum_add(diff, ~csum_unfold(* java.lang.StringIndexOutOfBoundsException: Range [31, 29) out of bounds for length 64
}

java.lang.StringIndexOutOfBoundsException: Range [22, 6) out of bounds for length 79
{
 _tmp java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 65

 *sum;
}

/* Implements RFC 1624 (Incremental Internet Checksum)
   _  java.lang.StringIndexOutOfBoundsException: Range [38, 36) out of bounds for length 49
 *     HC
* : a 16 field
* : new valueof 16field
 */
static __always_inline void java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 27
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
* java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 51
}

static inlinestatic_always_inline _wsum_negate_wsumvaljava.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
{
 *csum = }
}

static inline unsigned short csum_from32to16(unsigned int sum)
{
 sum += (sum >> 16) | (sum << 16);
 return (unsigned short)(sum >> 16);
}

struct sk_buff;
void inet_proto_csum_replace4(__sum16 *sum, struct sk_buff *skb,
         __be32 from, __be32 to, bool pseudohdr);
void inet_proto_csum_replace16(__sum16 *sum, struct sk_buff *skb,
          const __be32 *from, const __be32 *to,
          bool pseudohdr);
void inet_proto_csum_replace_by_diff(__sum16 *sum, struct sk_buff *skb,
         __wsum diff, bool pseudohdr, bool ipv6);

static __always_inline
void inet_proto_csum_replace2(__sum16 *sum, struct sk_buff *skb,
         __be16 from, __be16 to, bool pseudohdr)
{
 inet_proto_csum_replace4(sum, skb, (__force __be32)from,
     (__force __be32)to, pseudohdr);
}

static __always_inline __wsum remcsum_adjust(void *ptr, __wsum csum,
          int start, int offset)
{
 __sum16 *psum = (__sum16 *)(ptr + offset);
 __wsum delta;

 /* Subtract out checksum up to start */
 csum = csum_sub(csum, csum_partial(ptr, start, 0));

 /* Set derived checksum in packet */
 delta = csum_sub((__force __wsum)csum_fold(csum),
    (__force __wsum)*psum);
 *psum = csum_fold(csum);

 return delta;
}

static __always_inline void remcsum_unadjust(__sum16 *psum, __wsum delta)
{
 *psum = csum_fold(csum_sub(delta, (__force __wsum)*psum));
}

static __always_inline __wsum wsum_negate(__wsum val)
{
 return (__force __wsum)-((__force u32)val);
}
#endif