net/ncsi: Allow to extend NCSI request properties

There is only one NCSI request property for now: the response for
the sent command need drive the workqueue or not. So we had one
field (@driven) for the purpose. We lost the flexibility to extend
NCSI request properties.

This replaces @driven with @flags and @req_flags in NCSI request
and NCSI command argument struct. Each bit of the newly introduced
field can be used for one property. No functional changes introduced.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ncsi/internal.h b/net/ncsi/internal.h
index c956fe8..26e9295 100644
--- a/net/ncsi/internal.h
+++ b/net/ncsi/internal.h
@@ -207,7 +207,8 @@
 struct ncsi_request {
 	unsigned char        id;      /* Request ID - 0 to 255           */
 	bool                 used;    /* Request that has been assigned  */
-	bool                 driven;  /* Drive state machine             */
+	unsigned int         flags;   /* NCSI request property           */
+#define NCSI_REQ_FLAG_EVENT_DRIVEN	1
 	struct ncsi_dev_priv *ndp;    /* Associated NCSI device          */
 	struct sk_buff       *cmd;    /* Associated NCSI command packet  */
 	struct sk_buff       *rsp;    /* Associated NCSI response packet */
@@ -276,7 +277,7 @@
 	unsigned char        package;     /* Destination package ID        */
 	unsigned char        channel;     /* Detination channel ID or 0x1f */
 	unsigned short       payload;     /* Command packet payload length */
-	bool                 driven;      /* Drive the state machine?      */
+	unsigned int         req_flags;   /* NCSI request properties       */
 	union {
 		unsigned char  bytes[16]; /* Command packet specific data  */
 		unsigned short words[8];
@@ -315,7 +316,8 @@
 				   unsigned char id,
 				   struct ncsi_package **np,
 				   struct ncsi_channel **nc);
-struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp, bool driven);
+struct ncsi_request *ncsi_alloc_request(struct ncsi_dev_priv *ndp,
+					unsigned int req_flags);
 void ncsi_free_request(struct ncsi_request *nr);
 struct ncsi_dev *ncsi_find_dev(struct net_device *dev);
 int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);