@@ -3,7 +3,8 @@
#
obj-y := sock.o request_sock.o skbuff.o iovec.o datagram.o stream.o scm.o \
- gen_stats.o gen_estimator.o net_namespace.o secure_seq.o flow_dissector.o
+ gen_stats.o gen_estimator.o net_namespace.o secure_seq.o flow_dissector.o \
+ checksum.o
obj-$(CONFIG_SYSCTL) += sysctl_net_core.o
new file mode 100644
@@ -0,0 +1,26 @@
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+
+#include <net/checksum.h>
+
+__sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len)
+{
+ __sum16 sum;
+
+ sum = csum_fold(skb_checksum(skb, 0, len, skb->csum));
+ if (likely(!sum)) {
+ if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
+ netdev_rx_csum_fault(skb->dev);
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ }
+ return sum;
+}
+EXPORT_SYMBOL(__skb_checksum_complete_head);
+
+__sum16 __skb_checksum_complete(struct sk_buff *skb)
+{
+ return __skb_checksum_complete_head(skb, skb->len);
+}
+EXPORT_SYMBOL(__skb_checksum_complete);
@@ -734,26 +734,6 @@ fault:
return -EFAULT;
}
-__sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len)
-{
- __sum16 sum;
-
- sum = csum_fold(skb_checksum(skb, 0, len, skb->csum));
- if (likely(!sum)) {
- if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
- netdev_rx_csum_fault(skb->dev);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- }
- return sum;
-}
-EXPORT_SYMBOL(__skb_checksum_complete_head);
-
-__sum16 __skb_checksum_complete(struct sk_buff *skb)
-{
- return __skb_checksum_complete_head(skb, skb->len);
-}
-EXPORT_SYMBOL(__skb_checksum_complete);
-
/**
* skb_copy_and_csum_datagram_iovec - Copy and checkum skb to user iovec.
* @skb: skbuff
New file for skbuff checksum routines. Moved checksum complete functions from datagram.c. Signed-off-by: Tom Herbert <therbert@google.com> --- net/core/Makefile | 3 ++- net/core/checksum.c | 26 ++++++++++++++++++++++++++ net/core/datagram.c | 20 -------------------- 3 files changed, 28 insertions(+), 21 deletions(-) create mode 100644 net/core/checksum.c