[PATCH 03/14] staging: csr: netdev.c: Clean up KERNEL_VERSION checks: 2.6.28

From: Priit Laes
Date: Sat Sep 01 2012 - 05:20:33 EST


Signed-off-by: Priit Laes <plaes@xxxxxxxxx>
---
drivers/staging/csr/netdev.c | 454 -------------------------------------------
1 file changed, 454 deletions(-)

diff --git a/drivers/staging/csr/netdev.c b/drivers/staging/csr/netdev.c
index c44526e..6a5a483 100644
--- a/drivers/staging/csr/netdev.c
+++ b/drivers/staging/csr/netdev.c
@@ -67,7 +67,6 @@
*/
#define ALLOW_Q_PAUSE

-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
#ifdef UNIFI_NET_NAME
#define UF_ALLOC_NETDEV(_dev, _size, _name, _setup, _num_of_queues) \
do { \
@@ -81,21 +80,6 @@
_dev = alloc_etherdev_mq(_size, _num_of_queues); \
} while (0);
#endif /* UNIFI_NET_NAME */
-#else
-#ifdef UNIFI_NET_NAME
-#define UF_ALLOC_NETDEV(_dev, _size, _name, _setup, _num_of_queues) \
- do { \
- static char name[8]; \
- sprintf(name, "%s%s", UNIFI_NET_NAME, _name); \
- _dev = alloc_netdev(_size, name, _setup); \
- } while (0);
-#else
-#define UF_ALLOC_NETDEV(_dev, _size, _name, _setup, _num_of_queues) \
- do { \
- _dev = alloc_etherdev(_size); \
- } while (0);
-#endif /* UNIFI_NET_NAME */
-#endif /* LINUX_VERSION_CODE */


/* Wext handler is suported only if CSR_SUPPORT_WEXT is defined */
@@ -116,9 +100,7 @@ static int uf_net_open(struct net_device *dev);
static int uf_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int uf_net_stop(struct net_device *dev);
static struct net_device_stats *uf_net_get_stats(struct net_device *dev);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
static u16 uf_net_select_queue(struct net_device *dev, struct sk_buff *skb);
-#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
static netdev_tx_t uf_net_xmit(struct sk_buff *skb, struct net_device *dev);
#else
@@ -179,48 +161,6 @@ struct uf_tx_packet_data {
unsigned long host_tag;
};

-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-static int uf_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd);
-static int uf_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd);
-static struct sk_buff *uf_qdiscop_dequeue(struct Qdisc* qd);
-static void uf_qdiscop_reset(struct Qdisc* qd);
-static void uf_qdiscop_destroy(struct Qdisc* qd);
-static int uf_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb);
-static int uf_qdiscop_tune(struct Qdisc *qd, struct nlattr *opt);
-static int uf_qdiscop_init(struct Qdisc *qd, struct nlattr *opt);
-#endif
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-/* queueing discipline operations */
-static struct Qdisc_ops uf_qdisc_ops =
-{
- .next = NULL,
- .cl_ops = NULL,
- .id = "UniFi Qdisc",
- .priv_size = sizeof(struct uf_sched_data),
-
- .enqueue = uf_qdiscop_enqueue,
- .dequeue = uf_qdiscop_dequeue,
- .requeue = uf_qdiscop_requeue,
- .drop = NULL, /* drop not needed since we are always the root qdisc */
-
- .init = uf_qdiscop_init,
- .reset = uf_qdiscop_reset,
- .destroy = uf_qdiscop_destroy,
- .change = uf_qdiscop_tune,
-
- .dump = uf_qdiscop_dump,
-};
-#endif /* LINUX_VERSION_CODE */
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
-#define UF_QDISC_CREATE_DFLT(_dev, _ops, _root)
-#else
-#define UF_QDISC_CREATE_DFLT(_dev, _ops, _root) \
- qdisc_create_dflt(dev, _ops)
-#endif /* LINUX_VERSION_CODE */
-
#endif /* CONFIG_NET_SCHED */

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29)
@@ -330,10 +270,8 @@ uf_alloc_netdevice(CsrSdioFunction *sdio_dev, int bus_id)
dev->get_stats = uf_net_get_stats;

dev->set_multicast_list = uf_set_multicast_list;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
dev->select_queue = uf_net_select_queue;
#endif
-#endif

#ifdef CSR_SUPPORT_WEXT
dev->wireless_handlers = &unifi_iw_handler_def;
@@ -473,16 +411,8 @@ uf_alloc_netdevice(CsrSdioFunction *sdio_dev, int bus_id)
#endif
#endif

-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#ifdef CONFIG_NET_SCHED
- /* Register the qdisc operations */
- register_qdisc(&uf_qdisc_ops);
-#endif /* CONFIG_NET_SCHED */
-#endif /* LINUX_VERSION_CODE */
-
priv->ref_count = 1;

-
priv->amp_client = NULL;
priv->coredump_mode = 0;
priv->ptest_mode = 0;
@@ -672,13 +602,6 @@ uf_free_netdevice(unifi_priv_t *priv)
spin_unlock_irqrestore(&priv->wapi_lock, flags);
#endif

-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#ifdef CONFIG_NET_SCHED
- /* Unregister the qdisc operations */
- unregister_qdisc(&uf_qdisc_ops);
-#endif /* CONFIG_NET_SCHED */
-#endif /* LINUX_VERSION_CODE */
-
#ifdef CSR_SUPPORT_WEXT
/* Unregister callback for netdevice state changes */
unregister_netdevice_notifier(&uf_netdev_notifier);
@@ -941,7 +864,6 @@ get_packet_priority(unifi_priv_t *priv, struct sk_buff *skb, const struct ethhdr
return priority;
}

-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
/*
* ---------------------------------------------------------------------------
* uf_net_select_queue
@@ -989,7 +911,6 @@ uf_net_select_queue(struct net_device *dev, struct sk_buff *skb)
func_exit();
return (u16)queue;
} /* uf_net_select_queue() */
-#endif

int
skb_add_llc_snap(struct net_device *dev, struct sk_buff *skb, int proto)
@@ -1913,9 +1834,7 @@ uf_net_xmit(struct sk_buff *skb, struct net_device *dev)
int result;
static tx_signal_handler tx_handler;
CSR_PRIORITY priority;
-#if !defined (CONFIG_NET_SCHED) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
CsrWifiRouterCtrlPortAction port_action;
-#endif /* CONFIG_NET_SCHED */

func_enter();

@@ -1940,11 +1859,6 @@ uf_net_xmit(struct sk_buff *skb, struct net_device *dev)
port = UF_UNCONTROLLED_PORT_Q;
}

-#if defined (CONFIG_NET_SCHED) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28))
- /* Remove the ethernet header */
- skb_pull(skb, ETH_HLEN);
- result = tx_handler(priv, skb, &ehdr, priority);
-#else
/* Uncontrolled port rules apply */
port_action = verify_port(priv
, (((CSR_WIFI_ROUTER_CTRL_MODE_STA == interfacePriv->interfaceMode)||(CSR_WIFI_ROUTER_CTRL_MODE_P2PCLI== interfacePriv->interfaceMode))? interfacePriv->bssid.a: ehdr.h_dest)
@@ -1970,7 +1884,6 @@ uf_net_xmit(struct sk_buff *skb, struct net_device *dev)
func_exit();
return NETDEV_TX_OK;
}
-#endif /* CONFIG_NET_SCHED */

if (result == NETDEV_TX_OK) {
#if (defined(CSR_WIFI_SECURITY_WAPI_ENABLE) && defined(CSR_WIFI_SECURITY_WAPI_SW_ENCRYPTION))
@@ -2043,7 +1956,6 @@ unifi_pause_xmit(void *ospriv, unifi_TrafficQueue queue)
func_enter();
unifi_trace(priv, UDBG2, "Stopping queue %d\n", queue);

-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
{
if (netif_running(priv->netdev[i]))
@@ -2051,24 +1963,6 @@ unifi_pause_xmit(void *ospriv, unifi_TrafficQueue queue)
netif_stop_subqueue(priv->netdev[i], (u16)queue);
}
}
-#else
-#ifdef ALLOW_Q_PAUSE
- unifi_trace(priv, UDBG2, "Stopping netif\n");
- /* stop the traffic from all the interfaces. */
- for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
- {
- if (netif_running(priv->netdev[i])) {
- UF_NETIF_TX_STOP_ALL_QUEUES(priv->netdev[i]);
- }
- }
-#else
- if (net_is_tx_q_paused(priv, queue)) {
- unifi_trace(priv, UDBG2, "Queue already stopped\n");
- return;
- }
- net_tx_q_pause(priv, queue);
-#endif
-#endif

#ifdef CSR_SUPPORT_SME
if(queue<=3) {
@@ -2092,7 +1986,6 @@ unifi_restart_xmit(void *ospriv, unifi_TrafficQueue queue)
func_enter();
unifi_trace(priv, UDBG2, "Waking queue %d\n", queue);

-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
{
if (netif_running(priv->netdev[i]))
@@ -2100,25 +1993,6 @@ unifi_restart_xmit(void *ospriv, unifi_TrafficQueue queue)
netif_wake_subqueue(priv->netdev[i], (u16)queue);
}
}
-#else
-#ifdef ALLOW_Q_PAUSE
- /* Need to supply queue number depending on Kernel support */
- /* Resume the traffic from all the interfaces */
- for(i=0;i<CSR_WIFI_NUM_INTERFACES;i++)
- {
- if (netif_running(priv->netdev[i])) {
- UF_NETIF_TX_WAKE_ALL_QUEUES(priv->netdev[i]);
- }
- }
-#else
- if (!(net_is_tx_q_paused(priv, queue))) {
- unifi_trace(priv, UDBG2, "Queue already running\n");
- func_exit();
- return;
- }
- net_tx_q_unpause(priv, queue);
-#endif
-#endif

#ifdef CSR_SUPPORT_SME
if(queue <=3) {
@@ -2333,11 +2207,7 @@ uf_resume_data_plane(unifi_priv_t *priv, int queue,
{
#ifdef CONFIG_NET_SCHED
if (netif_running(priv->netdev[interfaceTag])) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
netif_tx_schedule_all(priv->netdev[interfaceTag]);
-#else
- netif_schedule(priv->netdev[interfaceTag]);
-#endif /* LINUX_VERSION_CODE */
}
#endif
uf_process_rx_pending_queue(priv, queue, peer_address, 1,interfaceTag);
@@ -3163,330 +3033,6 @@ void uf_net_get_name(struct net_device *dev, char *name, int len)

} /* uf_net_get_name */

-
-
-
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-#ifdef CONFIG_NET_SCHED
-
-/*
- * ---------------------------------------------------------------------------
- * uf_install_qdisc
- *
- * Creates a root qdisc, registers our qdisc handlers and
- * overrides the device's qdisc_sleeping to prevent the system
- * from creating a new one for our network device.
- *
- * Arguments:
- * dev Pointer to the network device.
- *
- * Returns:
- * 0 on success, Linux error code otherwise.
- *
- * Notes:
- * This function holds the qdisk lock so it needs to be called
- * after registering the network device in uf_register_netdev().
- * Also, the qdisc_create_dflt() API has changed in 2.6.20 to
- * include the parentid.
- * ---------------------------------------------------------------------------
- */
-int uf_install_qdisc(struct net_device *dev)
-{
- struct Qdisc *qdisc;
- struct netdev_queue *queue0;
-
-
- func_enter();
-
- qdisc = UF_QDISC_CREATE_DFLT(dev, &uf_qdisc_ops, TC_H_ROOT);
- if (!qdisc) {
- unifi_error(NULL, "%s: qdisc installation failed\n", dev->name);
- func_exit_r(-EFAULT);
- return -EFAULT;
- }
- unifi_trace(NULL, UDBG5, "%s: parent qdisc=0x%p\n",
- dev->name, qdisc);
-
- qdisc->handle = 0x80020000;
- qdisc->flags = 0x0;
-
- queue0 = netdev_get_tx_queue(dev, 0);
- if (queue0 == NULL) {
- unifi_error(NULL, "%s: netdev_get_tx_queue returned no queue\n",
- dev->name);
- func_exit_r(-EFAULT);
- return -EFAULT;
- }
- queue0->qdisc = qdisc;
- queue0->qdisc_sleeping = qdisc;
-
- func_exit_r(0);
- return 0;
-
-} /* uf_install_qdisc() */
-
-static int uf_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
-{
- netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(qd->dev_queue->dev);
- unifi_priv_t *priv = interfacePriv->privPtr;
- struct uf_sched_data *q = qdisc_priv(qd);
- struct uf_tx_packet_data *pkt_data = (struct uf_tx_packet_data *) skb->cb;
- struct ethhdr ehdr;
- struct Qdisc *qdisc;
- int r, proto;
-
- func_enter();
-
- memcpy(&ehdr, skb->data, ETH_HLEN);
- proto = ntohs(ehdr.h_proto);
-
- /* 802.1x - apply controlled/uncontrolled port rules */
- if ((proto != ETH_P_PAE)
-#ifdef CSR_WIFI_SECURITY_WAPI_ENABLE
- && (proto != ETH_P_WAI)
-#endif
- ) {
- /* queues 0 - 3 */
- pkt_data->priority = get_packet_priority(priv, skb, &ehdr, interfacePriv);
- pkt_data->queue = unifi_frame_priority_to_queue(pkt_data->priority);
- } else {
- pkt_data->queue = UNIFI_TRAFFIC_Q_EAPOL;
- }
-
- qdisc = q->queues[pkt_data->queue];
- r = qdisc->enqueue(skb, qdisc);
- if (r == NET_XMIT_SUCCESS) {
- qd->q.qlen++;
- qd->bstats.bytes += skb->len;
- qd->bstats.packets++;
- func_exit_r(NET_XMIT_SUCCESS);
- return NET_XMIT_SUCCESS;
- }
-
- unifi_error(priv, "uf_qdiscop_enqueue: dropped\n");
- qd->qstats.drops++;
-
- func_exit_r(r);
- return r;
-
-} /* uf_qdiscop_enqueue() */
-
-
-static int uf_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
-{
- netInterface_priv_t *interfacePriv = (netInterface_priv_t*)netdev_priv(qd->dev_queue->dev);
- unifi_priv_t *priv = interfacePriv->privPtr;
- struct uf_sched_data *q = qdisc_priv(qd);
- struct uf_tx_packet_data *pkt_data = (struct uf_tx_packet_data *) skb->cb;
- struct Qdisc *qdisc;
- int r;
-
- func_enter();
-
- unifi_trace(priv, UDBG5, "uf_qdiscop_requeue: (q=%d), tag=%u\n",
- pkt_data->queue, pkt_data->host_tag);
-
- /* we recorded which queue to use earlier! */
- qdisc = q->queues[pkt_data->queue];
-
- if ((r = qdisc->ops->requeue(skb, qdisc)) == 0) {
- qd->q.qlen++;
- func_exit_r(0);
- return 0;
- }
-
- unifi_error(priv, "uf_qdiscop_requeue: dropped\n");
- qd->qstats.drops++;
-
- func_exit_r(r);
- return r;
-} /* uf_qdiscop_requeue() */
-
-static struct sk_buff *uf_qdiscop_dequeue(struct Qdisc* qd)
-{
- netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(qd->dev_queue->dev);
- unifi_priv_t *priv = interfacePriv->privPtr;
- struct uf_sched_data *q = qdisc_priv(qd);
- struct sk_buff *skb;
- struct Qdisc *qdisc;
- int queue, i;
- struct ethhdr ehdr;
- struct uf_tx_packet_data *pkt_data;
- CsrWifiRouterCtrlPortAction port_action;
-
- func_enter();
-
- /* check all the queues */
- for (i = UNIFI_TRAFFIC_Q_MAX - 1; i >= 0; i--) {
-
- if (i != UNIFI_TRAFFIC_Q_EAPOL) {
- queue = priv->prev_queue;
- if (++priv->prev_queue >= UNIFI_TRAFFIC_Q_EAPOL) {
- priv->prev_queue = 0;
- }
- } else {
- queue = i;
- }
-
-#ifndef ALLOW_Q_PAUSE
- /* If queue is paused, do not dequeue */
- if (net_is_tx_q_paused(priv, queue)) {
- unifi_trace(priv, UDBG5,
- "uf_qdiscop_dequeue: tx queue paused (q=%d)\n", queue);
- continue;
- }
-#endif
-
- qdisc = q->queues[queue];
- skb = qdisc->dequeue(qdisc);
- if (skb) {
- /* A packet has been dequeued, decrease the queued packets count */
- qd->q.qlen--;
-
- pkt_data = (struct uf_tx_packet_data *) skb->cb;
-
- /* Check the (un)controlled port status */
- memcpy(&ehdr, skb->data, ETH_HLEN);
-
- port_action = verify_port(priv
- , (((CSR_WIFI_ROUTER_CTRL_MODE_STA == interfacePriv->interfaceMode) ||(CSR_WIFI_ROUTER_CTRL_MODE_P2PCLI == interfacePriv->interfaceMode))? interfacePriv->bssid.a: ehdr.h_dest)
- , (UNIFI_TRAFFIC_Q_EAPOL == queue? UF_UNCONTROLLED_PORT_Q: UF_CONTROLLED_PORT_Q)
- , interfacePriv->InterfaceTag);
-
- /* Dequeue packet if port is open */
- if (port_action == CSR_WIFI_ROUTER_CTRL_PORT_ACTION_8021X_PORT_OPEN) {
- unifi_trace(priv, UDBG5,
- "uf_qdiscop_dequeue: new (q=%d), tag=%u\n",
- queue, pkt_data->host_tag);
-
- func_exit();
- return skb;
- }
-
- /* Discard or block the packet if necessary */
- if (port_action == CSR_WIFI_ROUTER_CTRL_PORT_ACTION_8021X_PORT_CLOSED_DISCARD) {
- unifi_trace(priv, UDBG5,
- "uf_qdiscop_dequeue: drop (q=%d), tag=%u\n",
- queue, pkt_data->host_tag);
- kfree_skb(skb);
- break;
- }
-
- /* We can not send the packet now, put it back to the queue */
- if (qdisc->ops->requeue(skb, qdisc) != 0) {
- unifi_error(priv,
- "uf_qdiscop_dequeue: requeue (q=%d) failed, tag=%u, drop it\n",
- queue, pkt_data->host_tag);
-
- /* Requeue failed, drop the packet */
- kfree_skb(skb);
- break;
- }
- /* We requeued the packet, increase the queued packets count */
- qd->q.qlen++;
-
- unifi_trace(priv, UDBG5,
- "uf_qdiscop_dequeue: skip (q=%d), tag=%u\n",
- queue, pkt_data->host_tag);
- }
- }
-
- func_exit();
- return NULL;
-} /* uf_qdiscop_dequeue() */
-
-
-static void uf_qdiscop_reset(struct Qdisc* qd)
-{
- struct uf_sched_data *q = qdisc_priv(qd);
- int queue;
- func_enter();
-
- for (queue = 0; queue < UNIFI_TRAFFIC_Q_MAX; queue++) {
- qdisc_reset(q->queues[queue]);
- }
- qd->q.qlen = 0;
-
- func_exit();
-} /* uf_qdiscop_reset() */
-
-
-static void uf_qdiscop_destroy(struct Qdisc* qd)
-{
- struct uf_sched_data *q = qdisc_priv(qd);
- int queue;
-
- func_enter();
-
- for (queue=0; queue < UNIFI_TRAFFIC_Q_MAX; queue++) {
- qdisc_destroy(q->queues[queue]);
- q->queues[queue] = &noop_qdisc;
- }
-
- func_exit();
-} /* uf_qdiscop_destroy() */
-
-
-/* called whenever parameters are updated on existing qdisc */
-static int uf_qdiscop_tune(struct Qdisc *qd, struct nlattr *opt)
-{
- func_enter();
- func_exit();
- return 0;
-} /* uf_qdiscop_tune() */
-
-
-/* called during initial creation of qdisc on device */
-static int uf_qdiscop_init(struct Qdisc *qd, struct nlattr *opt)
-{
- struct net_device *dev = qd->dev_queue->dev;
- netInterface_priv_t *interfacePriv = (netInterface_priv_t *)netdev_priv(dev);
- unifi_priv_t *priv = interfacePriv->privPtr;
- struct uf_sched_data *q = qdisc_priv(qd);
- int err = 0, i;
-
- func_enter();
-
- /* make sure we do not mess with the ingress qdisc */
- if (qd->flags & TCQ_F_INGRESS) {
- func_exit();
- return -EINVAL;
- }
-
- /* if options were passed in, set them */
- if (opt) {
- err = uf_qdiscop_tune(qd, opt);
- }
-
- /* create child queues */
- for (i = 0; i < UNIFI_TRAFFIC_Q_MAX; i++) {
- q->queues[i] = UF_QDISC_CREATE_DFLT(dev, &pfifo_qdisc_ops,
- qd->handle);
- if (!q->queues[i]) {
- q->queues[i] = &noop_qdisc;
- unifi_error(priv, "%s child qdisc %i creation failed\n");
- }
-
- unifi_trace(priv, UDBG5, "%s: child qdisc=0x%p\n",
- dev->name, q->queues[i]);
- }
-
- func_exit_r(err);
- return err;
-} /* uf_qdiscop_init() */
-
-
-static int uf_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
-{
- func_enter();
- func_exit_r(skb->len);
- return skb->len;
-} /* uf_qdiscop_dump() */
-
-#endif /* CONFIG_NET_SCHED */
-#endif /* LINUX_VERSION_CODE */
-
#ifdef CSR_SUPPORT_WEXT

/*
--
1.7.12

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