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netinet: Remove in_cksum_update()

Browse source 
It was never implemented on powerpc or riscv and appears to have been
unused since it was added in 1998.  No functional change intended.

Reviewed by:	kp, glebius, cy
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D33093
This commit is contained in:
Mark Johnston 2021-11-24 13:15:40 -05:00
parent 00dbcdbe0a
commit 09100f936b
4 changed files with 0 additions and 106 deletions
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29
sys/amd64/include/in_cksum.h
View file

@ -45,35 +45,6 @@
#define in_cksum(m, len) in_cksum_skip(m, len, 0)
#if defined(IPVERSION) && (IPVERSION == 4)
/*
* It it useful to have an Internet checksum routine which is inlineable
* and optimized specifically for the task of computing IP header checksums
* in the normal case (where there are no options and the header length is
* therefore always exactly five 32-bit words.
*/
#ifdef __CC_SUPPORTS___INLINE
static __inline void
in_cksum_update(struct ip *ip)
{
int __tmpsum;
__tmpsum = (int)ntohs(ip->ip_sum) + 256;
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16));
}
#else
#define in_cksum_update(ip) \
do { \
int __tmpsum; \
__tmpsum = (int)ntohs(ip->ip_sum) + 256; \
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16)); \
} while(0)
#endif
#endif
#ifdef _KERNEL
#if defined(IPVERSION) && (IPVERSION == 4)
u_int in_cksum_hdr(const struct ip *ip);

19
sys/i386/include/in_cksum.h
View file

@ -83,14 +83,6 @@ in_cksum_hdr(const struct ip *ip)
return ~sum & 0xffff;
}
static __inline void
in_cksum_update(struct ip *ip)
{
int __tmpsum;
__tmpsum = (int)ntohs(ip->ip_sum) + 256;
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16));
}
#endif
static __inline u_short
@ -123,17 +115,6 @@ in_pseudo(u_int sum, u_int b, u_int c)
sum -= 0xffff;
return (sum);
}
#else
#if defined(IPVERSION) && (IPVERSION == 4)
#define in_cksum_update(ip) \
do { \
int __tmpsum; \
__tmpsum = (int)ntohs(ip->ip_sum) + 256; \
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16)); \
} while(0)
#endif
#endif
#ifdef _KERNEL

29
sys/mips/include/in_cksum.h
View file

@ -42,35 +42,6 @@
#define in_cksum(m, len) in_cksum_skip(m, len, 0)
#if defined(IPVERSION) && (IPVERSION == 4)
/*
* It it useful to have an Internet checksum routine which is inlineable
* and optimized specifically for the task of computing IP header checksums
* in the normal case (where there are no options and the header length is
* therefore always exactly five 32-bit words.
*/
#ifdef __CC_SUPPORTS___INLINE
static __inline void
in_cksum_update(struct ip *ip)
{
int __tmpsum;
__tmpsum = (int)ntohs(ip->ip_sum) + 256;
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16));
}
#else
#define in_cksum_update(ip) \
do { \
int __tmpsum; \
__tmpsum = (int)ntohs(ip->ip_sum) + 256; \
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16)); \
} while(0)
#endif
#endif
#ifdef _KERNEL
#if defined(IPVERSION) && (IPVERSION == 4)
u_int in_cksum_hdr(const struct ip *ip);

29
sys/powerpc/include/in_cksum.h
View file

@ -41,35 +41,6 @@
#define in_cksum(m, len) in_cksum_skip(m, len, 0)
#if defined(IPVERSION) && (IPVERSION == 4)
/*
* It it useful to have an Internet checksum routine which is inlineable
* and optimized specifically for the task of computing IP header checksums
* in the normal case (where there are no options and the header length is
* therefore always exactly five 32-bit words.
*/
#ifdef __CC_SUPPORTS___INLINE
static __inline void
in_cksum_update(struct ip *ip)
{
int __tmpsum;
__tmpsum = (int)ntohs(ip->ip_sum) + 256;
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16));
}
#else
#define in_cksum_update(ip) \
do { \
int __tmpsum; \
__tmpsum = (int)ntohs(ip->ip_sum) + 256; \
ip->ip_sum = htons(__tmpsum + (__tmpsum >> 16)); \
} while(0)
#endif
#endif
#ifdef _KERNEL
#if defined(IPVERSION) && (IPVERSION == 4)
u_int in_cksum_hdr(const struct ip *ip);