[NET]: V850 checksum annotations and cleanups.
* sanitize prototypes, annotate
* collapse csum_partial_copy
* usual ntohs->shift
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/v850/lib/checksum.c b/arch/v850/lib/checksum.c
index fa58726..042158d 100644
--- a/arch/v850/lib/checksum.c
+++ b/arch/v850/lib/checksum.c
@@ -88,32 +88,32 @@
* 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);
}
/*
* this routine is used for miscellaneous IP-like checksums, mainly
* in icmp.c
*/
-unsigned short ip_compute_csum(const unsigned char * buff, int len)
+__sum16 ip_compute_csum(const void *buff, int len)
{
- return ~do_csum(buff,len);
+ return (__force __sum16)~do_csum(buff,len);
}
/*
* computes a partial checksum, e.g. for TCP/UDP fragments
*/
-unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum)
+__wsum csum_partial(const void *buff, int len, __wsum sum)
{
unsigned int result = do_csum(buff, len);
/* add in old sum, and carry.. */
- result += sum;
- if(sum > result)
+ result += (__force u32)sum;
+ if ((__force u32)sum > result)
result += 1;
- return result;
+ return (__force __wsum)result;
}
EXPORT_SYMBOL(csum_partial);
@@ -121,8 +121,8 @@
/*
* copy while checksumming, otherwise like csum_partial
*/
-unsigned int csum_partial_copy(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)
{
/*
* It's 2:30 am and I don't feel like doing it real ...
@@ -138,9 +138,9 @@
* Copy from userspace and compute checksum. If we catch an exception
* then zero the rest of the buffer.
*/
-unsigned int csum_partial_copy_from_user (const unsigned char *src,
- unsigned char *dst,
- int len, unsigned int sum,
+__wsum csum_partial_copy_from_user (const void *src,
+ void *dst,
+ int len, __wsum sum,
int *err_ptr)
{
int missing;