[NET]: M68Knommu checksum annotations and cleanups.
* sanitize prototypes, annotated
* collapsed csum_partial_copy()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-m68knommu/checksum.h b/include/asm-m68knommu/checksum.h
index 294ec75..8188348 100644
--- a/include/asm-m68knommu/checksum.h
+++ b/include/asm-m68knommu/checksum.h
@@ -15,7 +15,7 @@
*
* 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
@@ -25,8 +25,8 @@
* better 64-bit) boundary
*/
-unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
- int len, int sum);
+__wsum csum_partial_copy_nocheck(const void *src, void *dst,
+ int len, __wsum sum);
/*
@@ -36,33 +36,31 @@
* better 64-bit) boundary
*/
-extern unsigned int csum_partial_copy_from_user(const unsigned char *src,
- unsigned char *dst, int len, int sum, int *csum_err);
+extern __wsum csum_partial_copy_from_user(const void __user *src,
+ void *dst, int len, __wsum sum, int *csum_err);
-#define csum_partial_copy_nocheck(src, dst, len, sum) \
- csum_partial_copy((src), (dst), (len), (sum))
-
-unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl);
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
/*
* Fold a partial checksum
*/
-static inline unsigned int csum_fold(unsigned int sum)
+static inline __sum16 csum_fold(__wsum sum)
{
+ unsigned int tmp = (__force u32)sum;
#ifdef CONFIG_COLDFIRE
- sum = (sum & 0xffff) + (sum >> 16);
- sum = (sum & 0xffff) + (sum >> 16);
+ tmp = (tmp & 0xffff) + (tmp >> 16);
+ tmp = (tmp & 0xffff) + (tmp >> 16);
+ return (__force __sum16)~tmp;
#else
- unsigned int tmp = 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 (__force __sum16)~sum;
#endif
- return ~sum;
}
@@ -71,9 +69,9 @@
* 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"
"addxl %4,%0\n\t"
@@ -86,9 +84,9 @@
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)
+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));
}
@@ -98,12 +96,12 @@
* in icmp.c
*/
-extern unsigned short ip_compute_csum(const unsigned char * buff, int len);
+extern __sum16 ip_compute_csum(const void *buff, int len);
#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"