[NET]: FRV checksum annotations.
* sanitize prototypes and annotate
* collapse 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-frv/checksum.h b/include/asm-frv/checksum.h
index 42bf0db..9b16898 100644
--- a/include/asm-frv/checksum.h
+++ b/include/asm-frv/checksum.h
@@ -26,7 +26,7 @@
*
* 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
@@ -35,7 +35,7 @@
* here even more important to align src and dst on a 32-bit (or even
* better 64-bit) boundary
*/
-unsigned int csum_partial_copy(const char *src, char *dst, int len, int sum);
+__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
/*
* the same as csum_partial_copy, but copies from user space.
@@ -43,11 +43,8 @@
* here even more important to align src and dst on a 32-bit (or even
* better 64-bit) boundary
*/
-extern unsigned int csum_partial_copy_from_user(const char __user *src, char *dst,
- int len, int sum, int *csum_err);
-
-#define csum_partial_copy_nocheck(src, dst, len, sum) \
- csum_partial_copy((src), (dst), (len), (sum))
+extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
+ int len, __wsum sum, int *csum_err);
/*
* This is a version of ip_compute_csum() optimized for IP headers,
@@ -55,7 +52,7 @@
*
*/
static inline
-unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl)
+__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
{
unsigned int tmp, inc, sum = 0;
@@ -81,13 +78,13 @@
: "icc0", "icc1"
);
- return ~sum;
+ 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;
@@ -100,16 +97,16 @@
: "0"(sum)
);
- return ~sum;
+ 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(" addcc %1,%0,%0,icc0 \n"
" addxcc %2,%0,%0,icc0 \n"
@@ -122,9 +119,9 @@
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));
}
@@ -133,12 +130,12 @@
* this routine is used for miscellaneous IP-like checksums, mainly
* 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)
{
unsigned long tmp, tmp2;
@@ -177,7 +174,7 @@
: "icc0"
);
- return ~sum;
+ return (__force __sum16)~sum;
}
#endif /* _ASM_CHECKSUM_H */