[NET]: FRV checksum annotations.

* sanitize prototypes and annotate
* collapse csum_partial_copy

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 12 deletions

diff --git a/arch/frv/lib/checksum.c b/arch/frv/lib/checksum.c
index 2581a960d58f..44e16d59bc10 100644
--- a/arch/frv/lib/checksum.c
+++ b/arch/frv/lib/checksum.c
@@ -104,15 +104,15 @@ out:
  *
  * 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 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);
@@ -121,9 +121,9 @@ EXPORT_SYMBOL(csum_partial);
  * 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);
 }
 
 EXPORT_SYMBOL(ip_compute_csum);
@@ -131,9 +131,9 @@ EXPORT_SYMBOL(ip_compute_csum);
 /*
  * copy from fs while checksumming, otherwise like csum_partial
  */
-unsigned int
-csum_partial_copy_from_user(const char __user *src, char *dst,
-                            int len, int sum, int *csum_err)
+__wsum
+csum_partial_copy_from_user(const void __user *src, void *dst,
+                            int len, __wsum sum, int *csum_err)
 {
         int rem;
 
@@ -156,11 +156,11 @@ EXPORT_SYMBOL(csum_partial_copy_from_user);
 /*
  * copy from ds while checksumming, otherwise like csum_partial
  */
-unsigned int
-csum_partial_copy(const char *src, char *dst, int len, int sum)
+__wsum
+csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
 {
         memcpy(dst, src, len);
         return csum_partial(dst, len, sum);
 }
 
-EXPORT_SYMBOL(csum_partial_copy);
+EXPORT_SYMBOL(csum_partial_copy_nocheck);