*
* it's best to have buff aligned on a 32-bit boundary
*/
-extern unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum);
+extern __wsum csum_partial(const void *buff, int len, __wsum sum);
/* the same as csum_partial, but copies from fs:src while it
* checksums
extern unsigned int __csum_partial_copy_sparc_generic (const unsigned char *, unsigned char *);
-static inline unsigned int
-csum_partial_copy_nocheck (const unsigned char *src, unsigned char *dst, int len,
- unsigned int sum)
+static inline __wsum
+csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
{
register unsigned int ret asm("o0") = (unsigned int)src;
register char *d asm("o1") = dst;
: "o2", "o3", "o4", "o5", "o7",
"g2", "g3", "g4", "g5", "g7",
"memory", "cc");
- return ret;
+ return (__force __wsum)ret;
}
-static inline unsigned int
-csum_partial_copy_from_user(const unsigned char __user *src, unsigned char *dst, int len,
- unsigned int sum, int *err)
+static inline __wsum
+csum_partial_copy_from_user(const void __user *src, void *dst, int len,
+ __wsum sum, int *err)
{
- if (!access_ok (VERIFY_READ, src, len)) {
- *err = -EFAULT;
- memset (dst, 0, len);
- return sum;
- } else {
- register unsigned long ret asm("o0") = (unsigned long)src;
- register char *d asm("o1") = dst;
- register int l asm("g1") = len;
- register unsigned int s asm("g7") = sum;
+ register unsigned long ret asm("o0") = (unsigned long)src;
+ register char *d asm("o1") = dst;
+ register int l asm("g1") = len;
+ register __wsum s asm("g7") = sum;
- __asm__ __volatile__ (
- ".section __ex_table,#alloc\n\t"
- ".align 4\n\t"
- ".word 1f,2\n\t"
- ".previous\n"
- "1:\n\t"
- "call __csum_partial_copy_sparc_generic\n\t"
- " st %8, [%%sp + 64]\n"
- : "=&r" (ret), "=&r" (d), "=&r" (l), "=&r" (s)
- : "0" (ret), "1" (d), "2" (l), "3" (s), "r" (err)
- : "o2", "o3", "o4", "o5", "o7", "g2", "g3", "g4", "g5",
- "cc", "memory");
- return ret;
- }
- }
+ __asm__ __volatile__ (
+ ".section __ex_table,#alloc\n\t"
+ ".align 4\n\t"
+ ".word 1f,2\n\t"
+ ".previous\n"
+ "1:\n\t"
+ "call __csum_partial_copy_sparc_generic\n\t"
+ " st %8, [%%sp + 64]\n"
+ : "=&r" (ret), "=&r" (d), "=&r" (l), "=&r" (s)
+ : "0" (ret), "1" (d), "2" (l), "3" (s), "r" (err)
+ : "o2", "o3", "o4", "o5", "o7", "g2", "g3", "g4", "g5",
+ "cc", "memory");
+ return (__force __wsum)ret;
+}
-static inline unsigned int
-csum_partial_copy_to_user(const unsigned char *src, unsigned char __user *dst, int len,
- unsigned int sum, int *err)
+static inline __wsum
+csum_partial_copy_to_user(const void *src, void __user *dst, int len,
+ __wsum sum, int *err)
{
if (!access_ok (VERIFY_WRITE, dst, len)) {
*err = -EFAULT;
register unsigned long ret asm("o0") = (unsigned long)src;
register char __user *d asm("o1") = dst;
register int l asm("g1") = len;
- register unsigned int s asm("g7") = sum;
+ register __wsum s asm("g7") = sum;
__asm__ __volatile__ (
".section __ex_table,#alloc\n\t"
: "o2", "o3", "o4", "o5", "o7",
"g2", "g3", "g4", "g5",
"cc", "memory");
- return ret;
+ return (__force __wsum)ret;
}
}
/* ihl is always 5 or greater, almost always is 5, and iph is word aligned
* the majority of the time.
*/
-static inline unsigned short ip_fast_csum(const unsigned char *iph,
- unsigned int ihl)
+static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
{
- unsigned short sum;
+ __sum16 sum;
/* Note: We must read %2 before we touch %0 for the first time,
* because GCC can legitimately use the same register for
"xnor\t%%g0, %0, %0"
: "=r" (sum), "=&r" (iph)
: "r" (ihl), "1" (iph)
- : "g2", "g3", "g4", "cc");
+ : "g2", "g3", "g4", "cc", "memory");
return sum;
}
/* Fold a partial checksum without adding pseudo headers. */
-static inline unsigned int csum_fold(unsigned int sum)
+static inline __sum16 csum_fold(__wsum sum)
{
unsigned int tmp;
"addx\t%1, %%g0, %1\n\t"
"xnor\t%%g0, %1, %0"
: "=&r" (sum), "=r" (tmp)
- : "0" (sum), "1" (sum<<16)
+ : "0" (sum), "1" ((__force u32)sum<<16)
: "cc");
- return sum;
+ return (__force __sum16)sum;
}
-static inline unsigned long csum_tcpudp_nofold(unsigned long saddr,
- unsigned long daddr,
- unsigned int len,
+static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+ unsigned short len,
unsigned short proto,
- unsigned int sum)
+ __wsum sum)
{
__asm__ __volatile__("addcc\t%1, %0, %0\n\t"
"addxcc\t%2, %0, %0\n\t"
"addxcc\t%3, %0, %0\n\t"
"addx\t%0, %%g0, %0\n\t"
: "=r" (sum), "=r" (saddr)
- : "r" (daddr), "r" ((proto<<16)+len), "0" (sum),
+ : "r" (daddr), "r" (proto + len), "0" (sum),
"1" (saddr)
: "cc");
return sum;
* computes the checksum of the TCP/UDP pseudo-header
* returns a 16-bit checksum, already complemented
*/
-static inline unsigned short int csum_tcpudp_magic(unsigned long saddr,
- unsigned long daddr,
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
unsigned short len,
unsigned short proto,
- unsigned int sum)
+ __wsum sum)
{
return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
}
#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)
{
__asm__ __volatile__ (
"addcc %3, %4, %%g4\n\t"
}
/* this routine is used for miscellaneous IP-like checksums, mainly 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));
}
git://git.onelab.eu / linux-2.6.git / blobdiff