diff options
Diffstat (limited to 'include/asm-mips/checksum.h')
| -rw-r--r-- | include/asm-mips/checksum.h | 55 |
1 files changed, 26 insertions, 29 deletions
diff --git a/include/asm-mips/checksum.h b/include/asm-mips/checksum.h index a5e6050ec0f3..9b768c3b96b3 100644 --- a/include/asm-mips/checksum.h +++ b/include/asm-mips/checksum.h @@ -27,23 +27,22 @@ * * 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); /* * this is a new version of the above that records errors it finds in *errp, * but continues and zeros the rest of the buffer. */ -unsigned int csum_partial_copy_from_user(const unsigned char __user *src, - unsigned char *dst, int len, - unsigned int sum, int *errp); +__wsum csum_partial_copy_from_user(const void __user *src, + void *dst, int len, + __wsum sum, int *errp); /* * Copy and checksum to user */ #define HAVE_CSUM_COPY_USER -static inline unsigned int csum_and_copy_to_user (const unsigned char *src, - unsigned char __user *dst, - int len, int sum, +static inline __wsum csum_and_copy_to_user (const void *src, void __user *dst, + int len, __wsum sum, int *err_ptr) { might_sleep(); @@ -51,7 +50,7 @@ static inline unsigned int csum_and_copy_to_user (const unsigned char *src, if (copy_to_user(dst, src, len)) { *err_ptr = -EFAULT; - return -1; + return (__force __wsum)-1; } return sum; @@ -61,13 +60,13 @@ static inline unsigned int csum_and_copy_to_user (const unsigned char *src, * the same as csum_partial, but copies from user space (but on MIPS * we have just one address space, so this is identical to the above) */ -unsigned int csum_partial_copy_nocheck(const unsigned char *src, unsigned char *dst, - int len, unsigned int sum); +__wsum csum_partial_copy_nocheck(const void *src, void *dst, + int len, __wsum sum); /* * Fold a partial checksum without adding pseudo headers */ -static inline unsigned short int csum_fold(unsigned int sum) +static inline __sum16 csum_fold(__wsum sum) { __asm__( " .set push # csum_fold\n" @@ -82,7 +81,7 @@ static inline unsigned short int csum_fold(unsigned int sum) : "=r" (sum) : "0" (sum)); - return sum; + return (__force __sum16)sum; } /* @@ -92,10 +91,10 @@ static inline unsigned short int csum_fold(unsigned int sum) * By Jorge Cwik <jorge@laser.satlink.net>, adapted for linux by * Arnt Gulbrandsen. */ -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 *word = (unsigned int *) iph; - unsigned int *stop = word + ihl; + const unsigned int *word = iph; + const unsigned int *stop = word + ihl; unsigned int csum; int carry; @@ -123,9 +122,9 @@ static inline unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl) return csum_fold(csum); } -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__( " .set push # csum_tcpudp_nofold\n" @@ -155,9 +154,9 @@ static inline unsigned int csum_tcpudp_nofold(unsigned long saddr, : "=r" (sum) : "0" (daddr), "r"(saddr), #ifdef __MIPSEL__ - "r" (((unsigned long)htons(len)<<16) + proto*256), + "r" ((proto + len) << 8), #else - "r" (((unsigned long)(proto)<<16) + len), + "r" (proto + len), #endif "r" (sum)); @@ -168,11 +167,10 @@ static inline unsigned int csum_tcpudp_nofold(unsigned long saddr, * 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)); } @@ -181,17 +179,16 @@ static inline unsigned short int csum_tcpudp_magic(unsigned long saddr, * 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)); } #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__( " .set push # csum_ipv6_magic\n" |
