diff options
Diffstat (limited to 'arch/alpha/lib/checksum.c')
| -rw-r--r-- | arch/alpha/lib/checksum.c | 37 |
1 files changed, 17 insertions, 20 deletions
diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c index 89044e6385fe..ab3761c437a8 100644 --- a/arch/alpha/lib/checksum.c +++ b/arch/alpha/lib/checksum.c @@ -41,28 +41,25 @@ static inline unsigned short from64to16(unsigned long x) * computes the checksum of the TCP/UDP pseudo-header * returns a 16-bit checksum, already complemented. */ -unsigned short int csum_tcpudp_magic(unsigned long saddr, - unsigned long daddr, +__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, - unsigned int sum) + __wsum sum) { - return ~from64to16(saddr + daddr + sum + - ((unsigned long) ntohs(len) << 16) + - ((unsigned long) proto << 8)); + return (__force __sum16)~from64to16( + (__force u64)saddr + (__force u64)daddr + + (__force u64)sum + ((len + proto) << 8)); } -unsigned int csum_tcpudp_nofold(unsigned long saddr, - unsigned long daddr, +__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, - unsigned int sum) + __wsum sum) { unsigned long result; - result = (saddr + daddr + sum + - ((unsigned long) ntohs(len) << 16) + - ((unsigned long) proto << 8)); + result = (__force u64)saddr + (__force u64)daddr + + (__force u64)sum + ((len + proto) << 8); /* Fold down to 32-bits so we don't lose in the typedef-less network stack. */ @@ -70,7 +67,7 @@ unsigned int csum_tcpudp_nofold(unsigned long saddr, result = (result & 0xffffffff) + (result >> 32); /* 33 to 32 */ result = (result & 0xffffffff) + (result >> 32); - return result; + return (__force __wsum)result; } /* @@ -146,9 +143,9 @@ out: * This is a version of ip_compute_csum() optimized for IP headers, * which always checksum on 4 octet boundaries. */ -unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl) +__sum16 ip_fast_csum(const void *iph, unsigned int ihl) { - return ~do_csum(iph,ihl*4); + return (__force __sum16)~do_csum(iph,ihl*4); } /* @@ -163,15 +160,15 @@ unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl) * * 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) { unsigned long result = do_csum(buff, len); /* add in old sum, and carry.. */ - result += sum; + result += (__force u32)sum; /* 32+c bits -> 32 bits */ result = (result & 0xffffffff) + (result >> 32); - return result; + return (__force __wsum)result; } EXPORT_SYMBOL(csum_partial); @@ -180,7 +177,7 @@ EXPORT_SYMBOL(csum_partial); * this routine is used for miscellaneous IP-like checksums, mainly * in icmp.c */ -unsigned short ip_compute_csum(unsigned char * buff, int len) +__sum16 ip_compute_csum(const void *buff, int len) { - return ~from64to16(do_csum(buff,len)); + return (__force __sum16)~from64to16(do_csum(buff,len)); } |