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authorsjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com>2011-05-13 02:44:03 (GMT)
committerDavid S. Miller <davem@davemloft.net>2011-05-15 21:45:55 (GMT)
commit43e3692101086add8719c3b8b50b05c9ac5b14e1 (patch)
tree736fc7d0792a492d9ef3a19ac8fff7ca800ced99 /net/caif
parentcb3cb423a0f3c627639535e5d87977ae662d779f (diff)
downloadlinux-43e3692101086add8719c3b8b50b05c9ac5b14e1.tar.xz
caif: Move refcount from service layer to sock and dev.
Instead of having reference counts in caif service layers, we hook into existing refcount handling in socket layer and netdevice. Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/caif')
-rw-r--r--net/caif/cfrfml.c4
-rw-r--r--net/caif/cfsrvl.c35
2 files changed, 31 insertions, 8 deletions
diff --git a/net/caif/cfrfml.c b/net/caif/cfrfml.c
index e2fb5fa..0deabb4 100644
--- a/net/caif/cfrfml.c
+++ b/net/caif/cfrfml.c
@@ -31,9 +31,9 @@ struct cfrfml {
spinlock_t sync;
};
-static void cfrfml_release(struct kref *kref)
+static void cfrfml_release(struct cflayer *layer)
{
- struct cfsrvl *srvl = container_of(kref, struct cfsrvl, ref);
+ struct cfsrvl *srvl = container_of(layer, struct cfsrvl, layer);
struct cfrfml *rfml = container_obj(&srvl->layer);
if (rfml->incomplete_frm)
diff --git a/net/caif/cfsrvl.c b/net/caif/cfsrvl.c
index 24ba392..535a1e7 100644
--- a/net/caif/cfsrvl.c
+++ b/net/caif/cfsrvl.c
@@ -10,6 +10,7 @@
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/module.h>
#include <net/caif/caif_layer.h>
#include <net/caif/cfsrvl.h>
#include <net/caif/cfpkt.h>
@@ -27,8 +28,8 @@ static void cfservl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
{
struct cfsrvl *service = container_obj(layr);
- caif_assert(layr->up != NULL);
- caif_assert(layr->up->ctrlcmd != NULL);
+ if (layr->up == NULL || layr->up->ctrlcmd == NULL)
+ return;
switch (ctrl) {
case CAIF_CTRLCMD_INIT_RSP:
@@ -151,9 +152,9 @@ static int cfservl_modemcmd(struct cflayer *layr, enum caif_modemcmd ctrl)
return -EINVAL;
}
-static void cfsrvl_release(struct kref *kref)
+static void cfsrvl_release(struct cflayer *layer)
{
- struct cfsrvl *service = container_of(kref, struct cfsrvl, ref);
+ struct cfsrvl *service = container_of(layer, struct cfsrvl, layer);
kfree(service);
}
@@ -173,10 +174,8 @@ void cfsrvl_init(struct cfsrvl *service,
service->dev_info = *dev_info;
service->supports_flowctrl = supports_flowctrl;
service->release = cfsrvl_release;
- kref_init(&service->ref);
}
-
bool cfsrvl_ready(struct cfsrvl *service, int *err)
{
if (service->open && service->modem_flow_on && service->phy_flow_on)
@@ -189,6 +188,7 @@ bool cfsrvl_ready(struct cfsrvl *service, int *err)
*err = -EAGAIN;
return false;
}
+
u8 cfsrvl_getphyid(struct cflayer *layer)
{
struct cfsrvl *servl = container_obj(layer);
@@ -200,3 +200,26 @@ bool cfsrvl_phyid_match(struct cflayer *layer, int phyid)
struct cfsrvl *servl = container_obj(layer);
return servl->dev_info.id == phyid;
}
+
+void caif_free_client(struct cflayer *adap_layer)
+{
+ struct cfsrvl *servl;
+ if (adap_layer == NULL || adap_layer->dn == NULL)
+ return;
+ servl = container_obj(adap_layer->dn);
+ servl->release(&servl->layer);
+}
+EXPORT_SYMBOL(caif_free_client);
+
+void caif_client_register_refcnt(struct cflayer *adapt_layer,
+ void (*hold)(struct cflayer *lyr),
+ void (*put)(struct cflayer *lyr))
+{
+ struct cfsrvl *service;
+ service = container_of(adapt_layer->dn, struct cfsrvl, layer);
+
+ WARN_ON(adapt_layer == NULL || adapt_layer->dn == NULL);
+ service->hold = hold;
+ service->put = put;
+}
+EXPORT_SYMBOL(caif_client_register_refcnt);