[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>

1 files changed, 13 insertions, 13 deletions

diff --git a/arch/v850/lib/checksum.c b/arch/v850/lib/checksum.c
index fa5872633075..042158dfe17a 100644
--- a/arch/v850/lib/checksum.c
+++ b/arch/v850/lib/checksum.c
@@ -88,32 +88,32 @@ 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);
 }
 
 /*
  * 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 @@ EXPORT_SYMBOL(csum_partial);
 /*
  * 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 @@ unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
  * 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;