isdn/gigaset: elliminate unnecessary argument from send_cb()

No need to pass a member of the cardstate structure as a separate
argument if the entire structure is already passed.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c
index c31d746..5f306e2 100644 (file)
--- a/drivers/isdn/gigaset/usb-gigaset.c
+++ b/drivers/isdn/gigaset/usb-gigaset.c
@@ -293,7 +293,7 @@ static int gigaset_close_bchannel(struct bc_state *bcs)
 }
 
 static int write_modem(struct cardstate *cs);
-static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb);
+static int send_cb(struct cardstate *cs);
 
 
 /* Write tasklet handler: Continue sending current skb, or send command, or
@@ -303,7 +303,6 @@ static void gigaset_modem_fill(unsigned long data)
 {
        struct cardstate *cs = (struct cardstate *) data;
        struct bc_state *bcs = &cs->bcs[0]; /* only one channel */
-       struct cmdbuf_t *cb;
 
        gig_dbg(DEBUG_OUTPUT, "modem_fill");
 
@@ -314,10 +313,9 @@ static void gigaset_modem_fill(unsigned long data)
 
 again:
        if (!bcs->tx_skb) {     /* no skb is being sent */
-               cb = cs->cmdbuf;
-               if (cb) {       /* commands to send? */
+               if (cs->cmdbuf) {       /* commands to send? */
                        gig_dbg(DEBUG_OUTPUT, "modem_fill: cb");
-                       if (send_cb(cs, cb) < 0) {
+                       if (send_cb(cs) < 0) {
                                gig_dbg(DEBUG_OUTPUT,
                                        "modem_fill: send_cb failed");
                                goto again; /* no callback will be called! */
@@ -425,9 +423,9 @@ static void gigaset_write_bulk_callback(struct urb *urb)
        spin_unlock_irqrestore(&cs->lock, flags);
 }
 
-static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
+static int send_cb(struct cardstate *cs)
 {
-       struct cmdbuf_t *tcb;
+       struct cmdbuf_t *cb = cs->cmdbuf;
        unsigned long flags;
        int count;
        int status = -ENOENT;
@@ -435,26 +433,27 @@ static int send_cb(struct cardstate *cs, struct cmdbuf_t *cb)
 
        do {
                if (!cb->len) {
-                       tcb = cb;
-
                        spin_lock_irqsave(&cs->cmdlock, flags);
                        cs->cmdbytes -= cs->curlen;
                        gig_dbg(DEBUG_OUTPUT, "send_cb: sent %u bytes, %u left",
                                cs->curlen, cs->cmdbytes);
-                       cs->cmdbuf = cb = cb->next;
-                       if (cb) {
-                               cb->prev = NULL;
-                               cs->curlen = cb->len;
+                       cs->cmdbuf = cb->next;
+                       if (cs->cmdbuf) {
+                               cs->cmdbuf->prev = NULL;
+                               cs->curlen = cs->cmdbuf->len;
                        } else {
                                cs->lastcmdbuf = NULL;
                                cs->curlen = 0;
                        }
                        spin_unlock_irqrestore(&cs->cmdlock, flags);
 
-                       if (tcb->wake_tasklet)
-                               tasklet_schedule(tcb->wake_tasklet);
-                       kfree(tcb);
+                       if (cb->wake_tasklet)
+                               tasklet_schedule(cb->wake_tasklet);
+                       kfree(cb);
+
+                       cb = cs->cmdbuf;
                }
+
                if (cb) {
                        count = min(cb->len, ucs->bulk_out_size);
                        gig_dbg(DEBUG_OUTPUT, "send_cb: send %d bytes", count);