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-rw-r--r--sys/sys/mbuf.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/sys/mbuf.h b/sys/sys/mbuf.h
index 380bc1f..eb0ff1e8 100644
--- a/sys/sys/mbuf.h
+++ b/sys/sys/mbuf.h
@@ -209,6 +209,7 @@ struct mbuf {
/*
* Flags indicating hw checksum support and sw checksum requirements.
+ * This field can be directly tested against if_data.ifi_hwassist.
*/
#define CSUM_IP 0x0001 /* will csum IP */
#define CSUM_TCP 0x0002 /* will csum TCP */
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