include/net net/ - csum_partial - remove unnecessary casts

The first argument to csum_partial is const void *
casts to char/u8 * are not necessary

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 07602b7..ba55d8b 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -98,7 +98,7 @@
 {
 	__be32 diff[] = { ~from, to };
 
-	*sum = csum_fold(csum_partial((char *)diff, sizeof(diff), ~csum_unfold(*sum)));
+	*sum = csum_fold(csum_partial(diff, sizeof(diff), ~csum_unfold(*sum)));
 }
 
 static inline void csum_replace2(__sum16 *sum, __be16 from, __be16 to)