*
* it's best to have buff aligned on a 32-bit boundary
*/
-unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum);
+__wsum csum_partial(const void *buff, int len, __wsum sum);
/*
* the same as csum_partial, but copies from src while it
* better 64-bit) boundary
*/
-extern unsigned int csum_partial_copy_from_user(const unsigned char *src,
- unsigned char *dst,
- int len, int sum,
+extern __wsum csum_partial_copy_from_user(const void __user *src,
+ void *dst,
+ int len, __wsum sum,
int *csum_err);
-extern unsigned int csum_partial_copy_nocheck(const unsigned char *src,
- unsigned char *dst, int len,
- int sum);
+extern __wsum csum_partial_copy_nocheck(const void *src,
+ void *dst, int len,
+ __wsum sum);
/*
* This is a version of ip_compute_csum() optimized for IP headers,
* which always checksum on 4 octet boundaries.
*
*/
-static inline unsigned short
-ip_fast_csum(unsigned char *iph, unsigned int ihl)
+static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
{
unsigned int sum = 0;
+ unsigned long tmp;
__asm__ ("subqw #1,%2\n"
"1:\t"
- "movel %1@+,%/d0\n\t"
- "addxl %/d0,%0\n\t"
+ "movel %1@+,%3\n\t"
+ "addxl %3,%0\n\t"
"dbra %2,1b\n\t"
- "movel %0,%/d0\n\t"
- "swap %/d0\n\t"
- "addxw %/d0,%0\n\t"
- "clrw %/d0\n\t"
- "addxw %/d0,%0\n\t"
- : "=d" (sum), "=a" (iph), "=d" (ihl)
+ "movel %0,%3\n\t"
+ "swap %3\n\t"
+ "addxw %3,%0\n\t"
+ "clrw %3\n\t"
+ "addxw %3,%0\n\t"
+ : "=d" (sum), "=&a" (iph), "=&d" (ihl), "=&d" (tmp)
: "0" (sum), "1" (iph), "2" (ihl)
- : "d0");
- return ~sum;
+ : "memory");
+ return (__force __sum16)~sum;
}
/*
* Fold a partial checksum
*/
-static inline unsigned int csum_fold(unsigned int sum)
+static inline __sum16 csum_fold(__wsum sum)
{
- unsigned int tmp = sum;
+ unsigned int tmp = (__force u32)sum;
__asm__("swap %1\n\t"
"addw %1, %0\n\t"
"clrw %1\n\t"
"addxw %1, %0"
: "=&d" (sum), "=&d" (tmp)
- : "0" (sum), "1" (sum));
- return ~sum;
+ : "0" (sum), "1" (tmp));
+ return (__force __sum16)~sum;
}
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-
-static inline unsigned int
-csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, unsigned short len,
- unsigned short proto, unsigned int sum)
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+ unsigned short proto, __wsum sum)
{
- __asm__ ("addl %1,%0\n\t"
+ __asm__ ("addl %2,%0\n\t"
+ "addxl %3,%0\n\t"
"addxl %4,%0\n\t"
- "addxl %5,%0\n\t"
"clrl %1\n\t"
"addxl %1,%0"
- : "=&d" (sum), "=&d" (saddr)
- : "0" (daddr), "1" (saddr), "d" (len + proto),
- "d"(sum));
+ : "=&d" (sum), "=d" (saddr)
+ : "g" (daddr), "1" (saddr), "d" (len + proto),
+ "0" (sum));
return sum;
}
-static inline unsigned short int
-csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, unsigned short len,
- unsigned short proto, unsigned int sum)
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+static inline __sum16
+csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
+ unsigned short proto, __wsum sum)
{
return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
}
* in icmp.c
*/
-static inline unsigned short
-ip_compute_csum(unsigned char * buff, int len)
+static inline __sum16 ip_compute_csum(const void *buff, int len)
{
return csum_fold (csum_partial(buff, len, 0));
}
#define _HAVE_ARCH_IPV6_CSUM
-static __inline__ unsigned short int
-csum_ipv6_magic(struct in6_addr *saddr, struct in6_addr *daddr,
- __u32 len, unsigned short proto, unsigned int sum)
+static __inline__ __sum16
+csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr,
+ __u32 len, unsigned short proto, __wsum sum)
{
register unsigned long tmp;
__asm__("addl %2@,%0\n\t"