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mISDN: Make clearing B-channel a common function

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Clearing B-channel is needed in every driver, so it makes sense
to have it as common function.

Signed-off-by: Karsten Keil <keil@b1-systems.de>
This commit is contained in:
Karsten Keil 2009-07-09 10:02:29 +02:00
parent f3fad223ed
commit fb286f0471
5 changed files with 17 additions and 47 deletions
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16
drivers/isdn/hardware/mISDN/hfcmulti.c
View file

@ -3416,22 +3416,8 @@ deactivate_bchannel(struct bchannel *bch)
u_long flags;
spin_lock_irqsave(&hc->lock, flags);
if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) {
dev_kfree_skb(bch->next_skb);
bch->next_skb = NULL;
}
if (bch->tx_skb) {
dev_kfree_skb(bch->tx_skb);
bch->tx_skb = NULL;
}
bch->tx_idx = 0;
if (bch->rx_skb) {
dev_kfree_skb(bch->rx_skb);
bch->rx_skb = NULL;
}
mISDN_clear_bchannel(bch);
hc->chan[bch->slot].coeff_count = 0;
test_and_clear_bit(FLG_ACTIVE, &bch->Flags);
test_and_clear_bit(FLG_TX_BUSY, &bch->Flags);
hc->chan[bch->slot].rx_off = 0;
hc->chan[bch->slot].conf = -1;
mode_hfcmulti(hc, bch->slot, ISDN_P_NONE, -1, 0, -1, 0);

16
drivers/isdn/hardware/mISDN/hfcpci.c
View file

@ -1522,22 +1522,8 @@ deactivate_bchannel(struct bchannel *bch)
u_long flags;
spin_lock_irqsave(&hc->lock, flags);
if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) {
dev_kfree_skb(bch->next_skb);
bch->next_skb = NULL;
}
if (bch->tx_skb) {
dev_kfree_skb(bch->tx_skb);
bch->tx_skb = NULL;
}
bch->tx_idx = 0;
if (bch->rx_skb) {
dev_kfree_skb(bch->rx_skb);
bch->rx_skb = NULL;
}
mISDN_clear_bchannel(bch);
mode_hfcpci(bch, bch->nr, ISDN_P_NONE);
test_and_clear_bit(FLG_ACTIVE, &bch->Flags);
test_and_clear_bit(FLG_TX_BUSY, &bch->Flags);
spin_unlock_irqrestore(&hc->lock, flags);
}

16
drivers/isdn/hardware/mISDN/hfcsusb.c
View file

@ -1809,21 +1809,7 @@ deactivate_bchannel(struct bchannel *bch)
hw->name, __func__, bch->nr);
spin_lock_irqsave(&hw->lock, flags);
if (test_and_clear_bit(FLG_TX_NEXT, &bch->Flags)) {
dev_kfree_skb(bch->next_skb);
bch->next_skb = NULL;
}
if (bch->tx_skb) {
dev_kfree_skb(bch->tx_skb);
bch->tx_skb = NULL;
}
bch->tx_idx = 0;
if (bch->rx_skb) {
dev_kfree_skb(bch->rx_skb);
bch->rx_skb = NULL;
}
clear_bit(FLG_ACTIVE, &bch->Flags);
clear_bit(FLG_TX_BUSY, &bch->Flags);
mISDN_clear_bchannel(bch);
spin_unlock_irqrestore(&hw->lock, flags);
hfcsusb_setup_bch(bch, ISDN_P_NONE);
hfcsusb_stop_endpoint(hw, bch->nr);

15
drivers/isdn/mISDN/hwchannel.c
View file

@ -114,13 +114,14 @@ mISDN_freedchannel(struct dchannel *ch)
}
EXPORT_SYMBOL(mISDN_freedchannel);
int
mISDN_freebchannel(struct bchannel *ch)
void
mISDN_clear_bchannel(struct bchannel *ch)
{
if (ch->tx_skb) {
dev_kfree_skb(ch->tx_skb);
ch->tx_skb = NULL;
}
ch->tx_idx = 0;
if (ch->rx_skb) {
dev_kfree_skb(ch->rx_skb);
ch->rx_skb = NULL;
@ -129,6 +130,16 @@ mISDN_freebchannel(struct bchannel *ch)
dev_kfree_skb(ch->next_skb);
ch->next_skb = NULL;
}
test_and_clear_bit(FLG_TX_BUSY, &ch->Flags);
test_and_clear_bit(FLG_TX_NEXT, &ch->Flags);
test_and_clear_bit(FLG_ACTIVE, &ch->Flags);
}
EXPORT_SYMBOL(mISDN_clear_bchannel);
int
mISDN_freebchannel(struct bchannel *ch)
{
mISDN_clear_bchannel(ch);
skb_queue_purge(&ch->rqueue);
ch->rcount = 0;
flush_scheduled_work();

1
include/linux/mISDNhw.h
View file

@ -168,6 +168,7 @@ struct bchannel {
extern int mISDN_initdchannel(struct dchannel *, int, void *);
extern int mISDN_initbchannel(struct bchannel *, int);
extern int mISDN_freedchannel(struct dchannel *);
extern void mISDN_clear_bchannel(struct bchannel *);
extern int mISDN_freebchannel(struct bchannel *);
extern void queue_ch_frame(struct mISDNchannel *, u_int,
int, struct sk_buff *);