enic: bug fix: make the set/get netlink VF_PORT support symmetrical

To make get/set netlink VF_PORT truly symmetrical, we need to keep track
of what items are set and only return those items on get.  Previously, the
driver wasn't differentiating between a set of attr with a NULL string,
for example, and not setting the attr at all.  We only want to return
the NULL string if the attr was actually set with a NULL string.  Otherwise,
don't return the attr.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 85f2a2e7030a..45e86d1e5b1b 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -74,7 +74,14 @@ struct enic_msix_entry {
         void *devid;
 };
 
+#define ENIC_SET_APPLIED                (1 << 0)
+#define ENIC_SET_REQUEST                (1 << 1)
+#define ENIC_SET_NAME                   (1 << 2)
+#define ENIC_SET_INSTANCE               (1 << 3)
+#define ENIC_SET_HOST                   (1 << 4)
+
 struct enic_port_profile {
+        u32 set;
         u8 request;
         char name[PORT_PROFILE_MAX];
         u8 instance_uuid[PORT_UUID_MAX];