datapath: Make checksum offsets unsigned.

The offsets for checksum offsets should always be positive so make
that explicit by using unsigned ints.  This helps bug checks that
test if the offsets are greater than their upper limits.

diff --git a/datapath/datapath.c b/datapath/datapath.c
index 8833bc149de9b1db99c0d1c63887ce371d575585..2681fed72fc8abbe31bf0d33669fff7fc7d1c89b 100644 (file)
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -2193,7 +2193,7 @@ success:
        if (skb->ip_summed == CHECKSUM_PARTIAL) {
                if (copy_bytes == skb->len) {
                        __wsum csum = 0;
        if (skb->ip_summed == CHECKSUM_PARTIAL) {
                if (copy_bytes == skb->len) {
                        __wsum csum = 0;

-                       int csum_start, csum_offset;
+                       unsigned int csum_start, csum_offset;

 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
                        csum_start = skb->csum_start - skb_headroom(skb);
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
                        csum_start = skb->csum_start - skb_headroom(skb);