caif: code cleanup
Cleanup of new CAIF code.
* make local functions static
* remove code that is never used
* expand get_caif_conf() since wrapper is no longer needed
* make args to comparison functions const
* rename connect_req_to_link_param to keep exported names
consistent
Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/caif/caif_config_util.c b/net/caif/caif_config_util.c
index d522d8c..9b63e4e 100644
--- a/net/caif/caif_config_util.c
+++ b/net/caif/caif_config_util.c
@@ -10,9 +10,9 @@
#include <net/caif/cfcnfg.h>
#include <net/caif/caif_dev.h>
-int connect_req_to_link_param(struct cfcnfg *cnfg,
- struct caif_connect_request *s,
- struct cfctrl_link_param *l)
+int caif_connect_req_to_link_param(struct cfcnfg *cnfg,
+ struct caif_connect_request *s,
+ struct cfctrl_link_param *l)
{
struct dev_info *dev_info;
enum cfcnfg_phy_preference pref;
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index a42a408..b533bb0 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -257,7 +257,7 @@
break;
}
dev_hold(dev);
- cfcnfg_add_phy_layer(get_caif_conf(),
+ cfcnfg_add_phy_layer(cfg,
phy_type,
dev,
&caifd->layer,
@@ -300,7 +300,7 @@
if (atomic_read(&caifd->in_use))
netdev_warn(dev,
"Unregistering an active CAIF device\n");
- cfcnfg_del_phy_layer(get_caif_conf(), &caifd->layer);
+ cfcnfg_del_phy_layer(cfg, &caifd->layer);
dev_put(dev);
atomic_set(&caifd->state, what);
break;
@@ -322,24 +322,18 @@
.priority = 0,
};
-
-struct cfcnfg *get_caif_conf(void)
-{
- return cfg;
-}
-EXPORT_SYMBOL(get_caif_conf);
-
int caif_connect_client(struct caif_connect_request *conn_req,
struct cflayer *client_layer, int *ifindex,
int *headroom, int *tailroom)
{
struct cfctrl_link_param param;
int ret;
- ret = connect_req_to_link_param(get_caif_conf(), conn_req, ¶m);
+
+ ret = caif_connect_req_to_link_param(cfg, conn_req, ¶m);
if (ret)
return ret;
/* Hook up the adaptation layer. */
- return cfcnfg_add_adaptation_layer(get_caif_conf(), ¶m,
+ return cfcnfg_add_adaptation_layer(cfg, ¶m,
client_layer, ifindex,
headroom, tailroom);
}
@@ -347,16 +341,10 @@
int caif_disconnect_client(struct cflayer *adap_layer)
{
- return cfcnfg_disconn_adapt_layer(get_caif_conf(), adap_layer);
+ return cfcnfg_disconn_adapt_layer(cfg, adap_layer);
}
EXPORT_SYMBOL(caif_disconnect_client);
-void caif_release_client(struct cflayer *adap_layer)
-{
- cfcnfg_release_adap_layer(adap_layer);
-}
-EXPORT_SYMBOL(caif_release_client);
-
/* Per-namespace Caif devices handling */
static int caif_init_net(struct net *net)
{
diff --git a/net/caif/cfcnfg.c b/net/caif/cfcnfg.c
index f1f98d9..25c0b19 100644
--- a/net/caif/cfcnfg.c
+++ b/net/caif/cfcnfg.c
@@ -253,7 +253,7 @@
{
}
-int protohead[CFCTRL_SRV_MASK] = {
+static const int protohead[CFCTRL_SRV_MASK] = {
[CFCTRL_SRV_VEI] = 4,
[CFCTRL_SRV_DATAGRAM] = 7,
[CFCTRL_SRV_UTIL] = 4,
diff --git a/net/caif/cfctrl.c b/net/caif/cfctrl.c
index 3cd8f97..397a2c0 100644
--- a/net/caif/cfctrl.c
+++ b/net/caif/cfctrl.c
@@ -58,7 +58,8 @@
return &this->serv.layer;
}
-static bool param_eq(struct cfctrl_link_param *p1, struct cfctrl_link_param *p2)
+static bool param_eq(const struct cfctrl_link_param *p1,
+ const struct cfctrl_link_param *p2)
{
bool eq =
p1->linktype == p2->linktype &&
@@ -100,8 +101,8 @@
return false;
}
-bool cfctrl_req_eq(struct cfctrl_request_info *r1,
- struct cfctrl_request_info *r2)
+static bool cfctrl_req_eq(const struct cfctrl_request_info *r1,
+ const struct cfctrl_request_info *r2)
{
if (r1->cmd != r2->cmd)
return false;
@@ -112,7 +113,7 @@
}
/* Insert request at the end */
-void cfctrl_insert_req(struct cfctrl *ctrl,
+static void cfctrl_insert_req(struct cfctrl *ctrl,
struct cfctrl_request_info *req)
{
spin_lock(&ctrl->info_list_lock);
@@ -123,8 +124,8 @@
}
/* Compare and remove request */
-struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
- struct cfctrl_request_info *req)
+static struct cfctrl_request_info *cfctrl_remove_req(struct cfctrl *ctrl,
+ struct cfctrl_request_info *req)
{
struct cfctrl_request_info *p, *tmp, *first;
@@ -154,16 +155,6 @@
return &this->res;
}
-void cfctrl_set_dnlayer(struct cflayer *this, struct cflayer *dn)
-{
- this->dn = dn;
-}
-
-void cfctrl_set_uplayer(struct cflayer *this, struct cflayer *up)
-{
- this->up = up;
-}
-
static void init_info(struct caif_payload_info *info, struct cfctrl *cfctrl)
{
info->hdr_len = 0;
@@ -304,58 +295,6 @@
return ret;
}
-void cfctrl_sleep_req(struct cflayer *layer)
-{
- int ret;
- struct cfctrl *cfctrl = container_obj(layer);
- struct cfpkt *pkt = cfpkt_create(CFPKT_CTRL_PKT_LEN);
- if (!pkt) {
- pr_warn("Out of memory\n");
- return;
- }
- cfpkt_addbdy(pkt, CFCTRL_CMD_SLEEP);
- init_info(cfpkt_info(pkt), cfctrl);
- ret =
- cfctrl->serv.layer.dn->transmit(cfctrl->serv.layer.dn, pkt);
- if (ret < 0)
- cfpkt_destroy(pkt);
-}
-
-void cfctrl_wake_req(struct cflayer *layer)
-{
- int ret;
- struct cfctrl *cfctrl = container_obj(layer);
- struct cfpkt *pkt = cfpkt_create(CFPKT_CTRL_PKT_LEN);
- if (!pkt) {
- pr_warn("Out of memory\n");
- return;
- }
- cfpkt_addbdy(pkt, CFCTRL_CMD_WAKE);
- init_info(cfpkt_info(pkt), cfctrl);
- ret =
- cfctrl->serv.layer.dn->transmit(cfctrl->serv.layer.dn, pkt);
- if (ret < 0)
- cfpkt_destroy(pkt);
-}
-
-void cfctrl_getstartreason_req(struct cflayer *layer)
-{
- int ret;
- struct cfctrl *cfctrl = container_obj(layer);
- struct cfpkt *pkt = cfpkt_create(CFPKT_CTRL_PKT_LEN);
- if (!pkt) {
- pr_warn("Out of memory\n");
- return;
- }
- cfpkt_addbdy(pkt, CFCTRL_CMD_START_REASON);
- init_info(cfpkt_info(pkt), cfctrl);
- ret =
- cfctrl->serv.layer.dn->transmit(cfctrl->serv.layer.dn, pkt);
- if (ret < 0)
- cfpkt_destroy(pkt);
-}
-
-
void cfctrl_cancel_req(struct cflayer *layr, struct cflayer *adap_layer)
{
struct cfctrl_request_info *p, *tmp;
diff --git a/net/caif/cfmuxl.c b/net/caif/cfmuxl.c
index 24f1ffa..f8ce0f3 100644
--- a/net/caif/cfmuxl.c
+++ b/net/caif/cfmuxl.c
@@ -71,41 +71,6 @@
return 0;
}
-bool cfmuxl_is_phy_inuse(struct cflayer *layr, u8 phyid)
-{
- struct list_head *node;
- struct cflayer *layer;
- struct cfmuxl *muxl = container_obj(layr);
- bool match = false;
- spin_lock(&muxl->receive_lock);
-
- list_for_each(node, &muxl->srvl_list) {
- layer = list_entry(node, struct cflayer, node);
- if (cfsrvl_phyid_match(layer, phyid)) {
- match = true;
- break;
- }
-
- }
- spin_unlock(&muxl->receive_lock);
- return match;
-}
-
-u8 cfmuxl_get_phyid(struct cflayer *layr, u8 channel_id)
-{
- struct cflayer *up;
- int phyid;
- struct cfmuxl *muxl = container_obj(layr);
- spin_lock(&muxl->receive_lock);
- up = get_up(muxl, channel_id);
- if (up != NULL)
- phyid = cfsrvl_getphyid(up);
- else
- phyid = 0;
- spin_unlock(&muxl->receive_lock);
- return phyid;
-}
-
int cfmuxl_set_dnlayer(struct cflayer *layr, struct cflayer *dn, u8 phyid)
{
struct cfmuxl *muxl = (struct cfmuxl *) layr;
diff --git a/net/caif/cfpkt_skbuff.c b/net/caif/cfpkt_skbuff.c
index d7e865e..20c6cb3 100644
--- a/net/caif/cfpkt_skbuff.c
+++ b/net/caif/cfpkt_skbuff.c
@@ -42,22 +42,22 @@
bool erronous;
};
-inline struct cfpkt_priv_data *cfpkt_priv(struct cfpkt *pkt)
+static inline struct cfpkt_priv_data *cfpkt_priv(struct cfpkt *pkt)
{
return (struct cfpkt_priv_data *) pkt->skb.cb;
}
-inline bool is_erronous(struct cfpkt *pkt)
+static inline bool is_erronous(struct cfpkt *pkt)
{
return cfpkt_priv(pkt)->erronous;
}
-inline struct sk_buff *pkt_to_skb(struct cfpkt *pkt)
+static inline struct sk_buff *pkt_to_skb(struct cfpkt *pkt)
{
return &pkt->skb;
}
-inline struct cfpkt *skb_to_pkt(struct sk_buff *skb)
+static inline struct cfpkt *skb_to_pkt(struct sk_buff *skb)
{
return (struct cfpkt *) skb;
}
@@ -317,17 +317,6 @@
}
EXPORT_SYMBOL(cfpkt_setlen);
-struct cfpkt *cfpkt_create_uplink(const unsigned char *data, unsigned int len)
-{
- struct cfpkt *pkt = cfpkt_create_pfx(len + PKT_POSTFIX, PKT_PREFIX);
- if (!pkt)
- return NULL;
- if (unlikely(data != NULL))
- cfpkt_add_body(pkt, data, len);
- return pkt;
-}
-EXPORT_SYMBOL(cfpkt_create_uplink);
-
struct cfpkt *cfpkt_append(struct cfpkt *dstpkt,
struct cfpkt *addpkt,
u16 expectlen)
@@ -408,169 +397,12 @@
}
EXPORT_SYMBOL(cfpkt_split);
-char *cfpkt_log_pkt(struct cfpkt *pkt, char *buf, int buflen)
-{
- struct sk_buff *skb = pkt_to_skb(pkt);
- char *p = buf;
- int i;
-
- /*
- * Sanity check buffer length, it needs to be at least as large as
- * the header info: ~=50+ bytes
- */
- if (buflen < 50)
- return NULL;
-
- snprintf(buf, buflen, "%s: pkt:%p len:%ld(%ld+%ld) {%ld,%ld} data: [",
- is_erronous(pkt) ? "ERRONOUS-SKB" :
- (skb->data_len != 0 ? "COMPLEX-SKB" : "SKB"),
- skb,
- (long) skb->len,
- (long) (skb_tail_pointer(skb) - skb->data),
- (long) skb->data_len,
- (long) (skb->data - skb->head),
- (long) (skb_tail_pointer(skb) - skb->head));
- p = buf + strlen(buf);
-
- for (i = 0; i < skb_tail_pointer(skb) - skb->data && i < 300; i++) {
- if (p > buf + buflen - 10) {
- sprintf(p, "...");
- p = buf + strlen(buf);
- break;
- }
- sprintf(p, "%02x,", skb->data[i]);
- p = buf + strlen(buf);
- }
- sprintf(p, "]\n");
- return buf;
-}
-EXPORT_SYMBOL(cfpkt_log_pkt);
-
-int cfpkt_raw_append(struct cfpkt *pkt, void **buf, unsigned int buflen)
-{
- struct sk_buff *skb = pkt_to_skb(pkt);
- struct sk_buff *lastskb;
-
- caif_assert(buf != NULL);
- if (unlikely(is_erronous(pkt)))
- return -EPROTO;
- /* Make sure SKB is writable */
- if (unlikely(skb_cow_data(skb, 0, &lastskb) < 0)) {
- PKT_ERROR(pkt, "skb_cow_data failed\n");
- return -EPROTO;
- }
-
- if (unlikely(skb_linearize(skb) != 0)) {
- PKT_ERROR(pkt, "linearize failed\n");
- return -EPROTO;
- }
-
- if (unlikely(skb_tailroom(skb) < buflen)) {
- PKT_ERROR(pkt, "buffer too short - failed\n");
- return -EPROTO;
- }
-
- *buf = skb_put(skb, buflen);
- return 1;
-}
-EXPORT_SYMBOL(cfpkt_raw_append);
-
-int cfpkt_raw_extract(struct cfpkt *pkt, void **buf, unsigned int buflen)
-{
- struct sk_buff *skb = pkt_to_skb(pkt);
-
- caif_assert(buf != NULL);
- if (unlikely(is_erronous(pkt)))
- return -EPROTO;
-
- if (unlikely(buflen > skb->len)) {
- PKT_ERROR(pkt, "buflen too large - failed\n");
- return -EPROTO;
- }
-
- if (unlikely(buflen > skb_headlen(skb))) {
- if (unlikely(skb_linearize(skb) != 0)) {
- PKT_ERROR(pkt, "linearize failed\n");
- return -EPROTO;
- }
- }
-
- *buf = skb->data;
- skb_pull(skb, buflen);
-
- return 1;
-}
-EXPORT_SYMBOL(cfpkt_raw_extract);
-
-inline bool cfpkt_erroneous(struct cfpkt *pkt)
+bool cfpkt_erroneous(struct cfpkt *pkt)
{
return cfpkt_priv(pkt)->erronous;
}
EXPORT_SYMBOL(cfpkt_erroneous);
-struct cfpktq *cfpktq_create(void)
-{
- struct cfpktq *q = kmalloc(sizeof(struct cfpktq), GFP_ATOMIC);
- if (!q)
- return NULL;
- skb_queue_head_init(&q->head);
- atomic_set(&q->count, 0);
- spin_lock_init(&q->lock);
- return q;
-}
-EXPORT_SYMBOL(cfpktq_create);
-
-void cfpkt_queue(struct cfpktq *pktq, struct cfpkt *pkt, unsigned short prio)
-{
- atomic_inc(&pktq->count);
- spin_lock(&pktq->lock);
- skb_queue_tail(&pktq->head, pkt_to_skb(pkt));
- spin_unlock(&pktq->lock);
-
-}
-EXPORT_SYMBOL(cfpkt_queue);
-
-struct cfpkt *cfpkt_qpeek(struct cfpktq *pktq)
-{
- struct cfpkt *tmp;
- spin_lock(&pktq->lock);
- tmp = skb_to_pkt(skb_peek(&pktq->head));
- spin_unlock(&pktq->lock);
- return tmp;
-}
-EXPORT_SYMBOL(cfpkt_qpeek);
-
-struct cfpkt *cfpkt_dequeue(struct cfpktq *pktq)
-{
- struct cfpkt *pkt;
- spin_lock(&pktq->lock);
- pkt = skb_to_pkt(skb_dequeue(&pktq->head));
- if (pkt) {
- atomic_dec(&pktq->count);
- caif_assert(atomic_read(&pktq->count) >= 0);
- }
- spin_unlock(&pktq->lock);
- return pkt;
-}
-EXPORT_SYMBOL(cfpkt_dequeue);
-
-int cfpkt_qcount(struct cfpktq *pktq)
-{
- return atomic_read(&pktq->count);
-}
-EXPORT_SYMBOL(cfpkt_qcount);
-
-struct cfpkt *cfpkt_clone_release(struct cfpkt *pkt)
-{
- struct cfpkt *clone;
- clone = skb_to_pkt(skb_clone(pkt_to_skb(pkt), GFP_ATOMIC));
- /* Free original packet. */
- cfpkt_destroy(pkt);
- if (!clone)
- return NULL;
- return clone;
-}
-EXPORT_SYMBOL(cfpkt_clone_release);
struct caif_payload_info *cfpkt_info(struct cfpkt *pkt)
{
diff --git a/net/caif/cfsrvl.c b/net/caif/cfsrvl.c
index ab5e542..24ba392 100644
--- a/net/caif/cfsrvl.c
+++ b/net/caif/cfsrvl.c
@@ -151,12 +151,7 @@
return -EINVAL;
}
-void cfservl_destroy(struct cflayer *layer)
-{
- kfree(layer);
-}
-
-void cfsrvl_release(struct kref *kref)
+static void cfsrvl_release(struct kref *kref)
{
struct cfsrvl *service = container_of(kref, struct cfsrvl, ref);
kfree(service);