diff options
| -rw-r--r-- | net/dcb/dcbnl.c | 81 |
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); |