From f99a6fde9ab3614adbff03580a15b107f6e0e25b Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Wed, 10 Dec 2014 13:41:55 +0100 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/isdn/gigaset/usb-gigaset.c | 31 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/drivers/isdn/gigaset/usb-gigaset.c b/drivers/isdn/gigaset/usb-gigaset.c index c31d74626498..5f306e2eece5 100644 --- 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); -- 2.20.1