[subscr] Remove the struct gsm_bts pointer from subscriber
The pointer was initially added to support to open a lchan by using the gsm_subscriber structure. We would have restored the struct gsm_bts from the db when loading the subscriber. Instead we will dynamically resolve the gsm_bts and might end up paging multiple bts in the same (stored/old) location area until it answers.
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@ -23,7 +23,6 @@ struct gsm_subscriber {
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/* for internal management */
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int use_count;
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struct llist_head entry;
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struct gsm_bts *current_bts;
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};
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enum gsm_subscriber_field {
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@ -96,17 +96,13 @@ int subscr_update(struct gsm_subscriber *s, struct gsm_bts *bts, int reason)
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/* FIXME: Migrate pending requests from one BSC to another */
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switch (reason) {
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case GSM_SUBSCRIBER_UPDATE_ATTACHED:
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s->current_bts = bts;
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/* Indicate "attached to LAC" */
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s->lac = bts->location_area_code;
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break;
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case GSM_SUBSCRIBER_UPDATE_DETACHED:
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/* Only detach if we are currently attached to this bts */
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if (bts == s->current_bts) {
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s->current_bts = NULL;
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/* Indicate "detached" */
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/* Only detach if we are currently in this area */
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if (bts->location_area_code == s->lac)
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s->lac = 0;
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}
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break;
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default:
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