[NET]: Annotate csum_partial() callers in net/*

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

4 files changed, 9 insertions, 8 deletions

diff --git a/net/core/iovec.c b/net/core/iovec.c
index 65e4b56fbc77..04b249c40b5b 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -158,9 +158,9 @@ int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov, int offset,
  *      call to this function will be unaligned also.
  */
 int csum_partial_copy_fromiovecend(unsigned char *kdata, struct iovec *iov,
-                                 int offset, unsigned int len, int *csump)
+                                 int offset, unsigned int len, __wsum *csump)
 {
-        int csum = *csump;
+        __wsum csum = *csump;
         int partial_cnt = 0, err = 0;
 
         /* Skip over the finished iovecs */
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index dfa02cc8d687..c0e3427057fc 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1265,7 +1265,7 @@ unsigned int skb_checksum(const struct sk_buff *skb, int offset,
 
                 end = start + skb_shinfo(skb)->frags[i].size;
                 if ((copy = end - offset) > 0) {
-                        unsigned int csum2;
+                        __wsum csum2;
                         u8 *vaddr;
                         skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
 
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 5f3e35c03637..f9194f7e39d3 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -682,7 +682,7 @@ ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk
                 if (memcpy_fromiovecend(to, iov, offset, len) < 0)
                         return -EFAULT;
         } else {
-                unsigned int csum = 0;
+                __wsum csum = 0;
                 if (csum_partial_copy_fromiovecend(to, iov, offset, len, &csum) < 0)
                         return -EFAULT;
                 skb->csum = csum_block_add(skb->csum, csum, odd);
@@ -690,11 +690,11 @@ ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk
         return 0;
 }
 
-static inline unsigned int
+static inline __wsum
 csum_page(struct page *page, int offset, int copy)
 {
         char *kaddr;
-        unsigned int csum;
+        __wsum csum;
         kaddr = kmap(page);
         csum = csum_partial(kaddr + offset, copy, 0);
         kunmap(page);
@@ -1166,7 +1166,7 @@ ssize_t	ip_append_page(struct sock *sk, struct page *page,
                 }
 
                 if (skb->ip_summed == CHECKSUM_NONE) {
-                        unsigned int csum;
+                        __wsum csum;
                         csum = csum_page(page, offset, len);
                         skb->csum = csum_block_add(skb->csum, csum, skb->len);
                 }
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index b43a27828df5..2f208c7f4d43 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -151,8 +151,9 @@ static inline void unix_set_secdata(struct scm_cookie *scm, struct sk_buff *skb)
  *    each socket state is protected by separate rwlock.
  */
 
-static inline unsigned unix_hash_fold(unsigned hash)
+static inline unsigned unix_hash_fold(__wsum n)
 {
+        unsigned hash = (__force unsigned)n;
         hash ^= hash>>16;
         hash ^= hash>>8;
         return hash&(UNIX_HASH_SIZE-1);