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authorThomas Graf <tgraf@suug.ch>2012-06-13 02:54:59 +0000
committerDavid S. Miller <davem@davemloft.net>2012-06-13 15:46:35 -0700
commit716b31abbd39baab307c0a7b38dce9a20c16c62d (patch)
tree9aaf6a4724aeb44f5040c187025afb1a1f834a3d /net/dcb
parent3d1f486952b750f1cca53cf22d4f769db5aba4f0 (diff)
downloadlinux-716b31abbd39baab307c0a7b38dce9a20c16c62d.tar.gz
dcbnl: Move dcb app lookup code into dcb_app_lookup()
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dcb')
-rw-r--r--net/dcb/dcbnl.c81
1 files changed, 35 insertions, 46 deletions
diff --git a/net/dcb/dcbnl.c b/net/dcb/dcbnl.c
index 5a5bc25b70d..6817f143995 100644
--- a/net/dcb/dcbnl.c
+++ b/net/dcb/dcbnl.c
@@ -1716,6 +1716,22 @@ out:
return ret;
}
+static struct dcb_app_type *dcb_app_lookup(const struct dcb_app *app,
+ int ifindex, int prio)
+{
+ struct dcb_app_type *itr;
+
+ list_for_each_entry(itr, &dcb_app_list, list) {
+ if (itr->app.selector == app->selector &&
+ itr->app.protocol == app->protocol &&
+ itr->ifindex == ifindex &&
+ (!prio || itr->app.priority == prio))
+ return itr;
+ }
+
+ return NULL;
+}
+
/**
* dcb_getapp - retrieve the DCBX application user priority
*
@@ -1729,14 +1745,8 @@ u8 dcb_getapp(struct net_device *dev, struct dcb_app *app)
u8 prio = 0;
spin_lock(&dcb_lock);
- list_for_each_entry(itr, &dcb_app_list, list) {
- if (itr->app.selector == app->selector &&
- itr->app.protocol == app->protocol &&
- itr->ifindex == dev->ifindex) {
- prio = itr->app.priority;
- break;
- }
- }
+ if ((itr = dcb_app_lookup(app, dev->ifindex, 0)))
+ prio = itr->app.priority;
spin_unlock(&dcb_lock);
return prio;
@@ -1762,18 +1772,14 @@ int dcb_setapp(struct net_device *dev, struct dcb_app *new)
spin_lock(&dcb_lock);
/* Search for existing match and replace */
- list_for_each_entry(itr, &dcb_app_list, list) {
- if (itr->app.selector == new->selector &&
- itr->app.protocol == new->protocol &&
- itr->ifindex == dev->ifindex) {
- if (new->priority)
- itr->app.priority = new->priority;
- else {
- list_del(&itr->list);
- kfree(itr);
- }
- goto out;
+ if ((itr = dcb_app_lookup(new, dev->ifindex, 0))) {
+ if (new->priority)
+ itr->app.priority = new->priority;
+ else {
+ list_del(&itr->list);
+ kfree(itr);
}
+ goto out;
}
/* App type does not exist add new application type */
if (new->priority) {
@@ -1808,13 +1814,8 @@ u8 dcb_ieee_getapp_mask(struct net_device *dev, struct dcb_app *app)
u8 prio = 0;
spin_lock(&dcb_lock);
- list_for_each_entry(itr, &dcb_app_list, list) {
- if (itr->app.selector == app->selector &&
- itr->app.protocol == app->protocol &&
- itr->ifindex == dev->ifindex) {
- prio |= 1 << itr->app.priority;
- }
- }
+ if ((itr = dcb_app_lookup(app, dev->ifindex, 0)))
+ prio |= 1 << itr->app.priority;
spin_unlock(&dcb_lock);
return prio;
@@ -1830,7 +1831,7 @@ EXPORT_SYMBOL(dcb_ieee_getapp_mask);
*/
int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new)
{
- struct dcb_app_type *itr, *entry;
+ struct dcb_app_type *entry;
struct dcb_app_type event;
int err = 0;
@@ -1841,14 +1842,9 @@ int dcb_ieee_setapp(struct net_device *dev, struct dcb_app *new)
spin_lock(&dcb_lock);
/* Search for existing match and abort if found */
- list_for_each_entry(itr, &dcb_app_list, list) {
- if (itr->app.selector == new->selector &&
- itr->app.protocol == new->protocol &&
- itr->app.priority == new->priority &&
- itr->ifindex == dev->ifindex) {
- err = -EEXIST;
- goto out;
- }
+ if (dcb_app_lookup(new, dev->ifindex, new->priority)) {
+ err = -EEXIST;
+ goto out;
}
/* App entry does not exist add new entry */
@@ -1887,19 +1883,12 @@ int dcb_ieee_delapp(struct net_device *dev, struct dcb_app *del)
spin_lock(&dcb_lock);
/* Search for existing match and remove it. */
- list_for_each_entry(itr, &dcb_app_list, list) {
- if (itr->app.selector == del->selector &&
- itr->app.protocol == del->protocol &&
- itr->app.priority == del->priority &&
- itr->ifindex == dev->ifindex) {
- list_del(&itr->list);
- kfree(itr);
- err = 0;
- goto out;
- }
+ if ((itr = dcb_app_lookup(del, dev->ifindex, del->priority))) {
+ list_del(&itr->list);
+ kfree(itr);
+ err = 0;
}
-out:
spin_unlock(&dcb_lock);
if (!err)
call_dcbevent_notifiers(DCB_APP_EVENT, &event);