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-rw-r--r--openbsc/include/openbsc/gsm_data.h1
-rw-r--r--openbsc/src/paging.c43
2 files changed, 9 insertions, 35 deletions
diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index 8dfa5886b..ef0b50768 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -368,7 +368,6 @@ struct gsm_paging_request {
struct gsm_bts_paging_state {
/* pending requests */
struct llist_head pending_requests;
- struct gsm_paging_request *last_request;
struct gsm_bts *bts;
struct timer_list work_timer;
diff --git a/openbsc/src/paging.c b/openbsc/src/paging.c
index 2ae3fc6bf..ece71ca7f 100644
--- a/openbsc/src/paging.c
+++ b/openbsc/src/paging.c
@@ -70,14 +70,6 @@ static unsigned int calculate_group(struct gsm_bts *bts, struct gsm_subscriber *
static void paging_remove_request(struct gsm_bts_paging_state *paging_bts,
struct gsm_paging_request *to_be_deleted)
{
- /* Update the last_request if that is necessary */
- if (to_be_deleted == paging_bts->last_request) {
- paging_bts->last_request =
- (struct gsm_paging_request *)paging_bts->last_request->entry.next;
- if (&to_be_deleted->entry == &paging_bts->pending_requests)
- paging_bts->last_request = NULL;
- }
-
bsc_del_timer(&to_be_deleted->T3113);
llist_del(&to_be_deleted->entry);
subscr_put(to_be_deleted->subscr);
@@ -103,14 +95,6 @@ static void page_ms(struct gsm_paging_request *request)
request->chan_type);
}
-static void paging_move_to_next(struct gsm_bts_paging_state *paging_bts)
-{
- paging_bts->last_request =
- (struct gsm_paging_request *)paging_bts->last_request->entry.next;
- if (&paging_bts->last_request->entry == &paging_bts->pending_requests)
- paging_bts->last_request = NULL;
-}
-
/*
* This is kicked by the periodic PAGING LOAD Indicator
* coming from abis_rsl.c
@@ -128,7 +112,6 @@ static void paging_handle_pending_requests(struct gsm_bts_paging_state *paging_b
* return then.
*/
if (llist_empty(&paging_bts->pending_requests)) {
- paging_bts->last_request = NULL;
/* since the list is empty, no need to reschedule the timer */
return;
}
@@ -147,12 +130,8 @@ static void paging_handle_pending_requests(struct gsm_bts_paging_state *paging_b
paging_bts->available_slots = 20;
}
- if (!paging_bts->last_request)
- paging_bts->last_request =
- (struct gsm_paging_request *)paging_bts->pending_requests.next;
-
- assert(paging_bts->last_request);
- initial_request = paging_bts->last_request;
+ initial_request = llist_entry(paging_bts->pending_requests.next,
+ struct gsm_paging_request, entry);
current_request = initial_request;
do {
@@ -160,17 +139,13 @@ static void paging_handle_pending_requests(struct gsm_bts_paging_state *paging_b
page_ms(current_request);
paging_bts->available_slots--;
- /*
- * move to the next item. We might wrap around
- * this means last_request will be NULL and we just
- * call paging_page_to_next again. It it guranteed
- * that the list is not empty.
- */
- paging_move_to_next(paging_bts);
- if (!paging_bts->last_request)
- paging_bts->last_request =
- (struct gsm_paging_request *)paging_bts->pending_requests.next;
- current_request = paging_bts->last_request;
+ /* take the current and add it to the back */
+ llist_del(&current_request->entry);
+ llist_add_tail(&current_request->entry, &paging_bts->pending_requests);
+
+ /* take the next request */
+ current_request = llist_entry(paging_bts->pending_requests.next,
+ struct gsm_paging_request, entry);
} while (paging_bts->available_slots > 0
&& initial_request != current_request);