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path: root/drivers/isdn/i4l/isdn_net.h
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Diffstat (limited to 'drivers/isdn/i4l/isdn_net.h')
-rw-r--r--drivers/isdn/i4l/isdn_net.h69
1 files changed, 15 insertions, 54 deletions
diff --git a/drivers/isdn/i4l/isdn_net.h b/drivers/isdn/i4l/isdn_net.h
index bc2f0dd962e..cca6d68da17 100644
--- a/drivers/isdn/i4l/isdn_net.h
+++ b/drivers/isdn/i4l/isdn_net.h
@@ -11,7 +11,7 @@
*
*/
- /* Definitions for hupflags: */
+/* Definitions for hupflags: */
#define ISDN_WAITCHARGE 1 /* did not get a charge info yet */
#define ISDN_HAVECHARGE 2 /* We know a charge info */
#define ISDN_CHARGEHUP 4 /* We want to use the charge mechanism */
@@ -56,6 +56,11 @@ extern void isdn_net_write_super(isdn_net_local *lp, struct sk_buff *skb);
#define ISDN_NET_MAX_QUEUE_LENGTH 2
+#define ISDN_MASTER_PRIV(lp) ((isdn_net_local *) netdev_priv(lp->master))
+#define ISDN_SLAVE_PRIV(lp) ((isdn_net_local *) netdev_priv(lp->slave))
+#define MASTER_TO_SLAVE(master) \
+ (((isdn_net_local *) netdev_priv(master))->slave)
+
/*
* is this particular channel busy?
*/
@@ -63,7 +68,7 @@ static __inline__ int isdn_net_lp_busy(isdn_net_local *lp)
{
if (atomic_read(&lp->frame_cnt) < ISDN_NET_MAX_QUEUE_LENGTH)
return 0;
- else
+ else
return 1;
}
@@ -71,26 +76,26 @@ static __inline__ int isdn_net_lp_busy(isdn_net_local *lp)
* For the given net device, this will get a non-busy channel out of the
* corresponding bundle. The returned channel is locked.
*/
-static __inline__ isdn_net_local * isdn_net_get_locked_lp(isdn_net_dev *nd)
+static __inline__ isdn_net_local *isdn_net_get_locked_lp(isdn_net_dev *nd)
{
unsigned long flags;
isdn_net_local *lp;
spin_lock_irqsave(&nd->queue_lock, flags);
lp = nd->queue; /* get lp on top of queue */
- spin_lock(&nd->queue->xmit_lock);
while (isdn_net_lp_busy(nd->queue)) {
- spin_unlock(&nd->queue->xmit_lock);
nd->queue = nd->queue->next;
if (nd->queue == lp) { /* not found -- should never happen */
lp = NULL;
goto errout;
}
- spin_lock(&nd->queue->xmit_lock);
}
lp = nd->queue;
nd->queue = nd->queue->next;
+ spin_unlock_irqrestore(&nd->queue_lock, flags);
+ spin_lock(&lp->xmit_lock);
local_bh_disable();
+ return lp;
errout:
spin_unlock_irqrestore(&nd->queue_lock, flags);
return lp;
@@ -108,7 +113,7 @@ static __inline__ void isdn_net_add_to_bundle(isdn_net_dev *nd, isdn_net_local *
lp = nd->queue;
// printk(KERN_DEBUG "%s: lp:%s(%p) nlp:%s(%p) last(%p)\n",
-// __FUNCTION__, lp->name, lp, nlp->name, nlp, lp->last);
+// __func__, lp->name, lp, nlp->name, nlp, lp->last);
nlp->last = lp->last;
lp->last->next = nlp;
lp->last = nlp;
@@ -126,10 +131,10 @@ static __inline__ void isdn_net_rm_from_bundle(isdn_net_local *lp)
unsigned long flags;
if (lp->master)
- master_lp = (isdn_net_local *) lp->master->priv;
+ master_lp = ISDN_MASTER_PRIV(lp);
// printk(KERN_DEBUG "%s: lp:%s(%p) mlp:%s(%p) last(%p) next(%p) mndq(%p)\n",
-// __FUNCTION__, lp->name, lp, master_lp->name, master_lp, lp->last, lp->next, master_lp->netdev->queue);
+// __func__, lp->name, lp, master_lp->name, master_lp, lp->last, lp->next, master_lp->netdev->queue);
spin_lock_irqsave(&master_lp->netdev->queue_lock, flags);
lp->last->next = lp->next;
lp->next->last = lp->last;
@@ -141,50 +146,6 @@ static __inline__ void isdn_net_rm_from_bundle(isdn_net_local *lp)
}
lp->next = lp->last = lp; /* (re)set own pointers */
// printk(KERN_DEBUG "%s: mndq(%p)\n",
-// __FUNCTION__, master_lp->netdev->queue);
+// __func__, master_lp->netdev->queue);
spin_unlock_irqrestore(&master_lp->netdev->queue_lock, flags);
}
-
-static inline int
-put_u8(unsigned char *p, u8 x)
-{
- *p = x;
- return 1;
-}
-
-static inline int
-put_u16(unsigned char *p, u16 x)
-{
- *((u16 *)p) = htons(x);
- return 2;
-}
-
-static inline int
-put_u32(unsigned char *p, u32 x)
-{
- *((u32 *)p) = htonl(x);
- return 4;
-}
-
-static inline int
-get_u8(unsigned char *p, u8 *x)
-{
- *x = *p;
- return 1;
-}
-
-static inline int
-get_u16(unsigned char *p, u16 *x)
-{
- *x = ntohs(*((u16 *)p));
- return 2;
-}
-
-static inline int
-get_u32(unsigned char *p, u32 *x)
-{
- *x = ntohl(*((u32 *)p));
- return 4;
-}
-
-