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path: root/drivers/firewire/core-transaction.c
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Diffstat (limited to 'drivers/firewire/core-transaction.c')
-rw-r--r--drivers/firewire/core-transaction.c55
1 files changed, 29 insertions, 26 deletions
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index c9318024386f..56510d305564 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -1011,32 +1011,10 @@ void fw_core_handle_response(struct fw_card *card, struct fw_packet *p)
source = async_header_get_source(p->header);
rcode = async_header_get_rcode(p->header);
- spin_lock_irqsave(&card->lock, flags);
- list_for_each_entry(iter, &card->transaction_list, link) {
- if (iter->node_id == source && iter->tlabel == tlabel) {
- if (!try_cancel_split_timeout(iter)) {
- spin_unlock_irqrestore(&card->lock, flags);
- goto timed_out;
- }
- list_del_init(&iter->link);
- card->tlabel_mask &= ~(1ULL << iter->tlabel);
- t = iter;
- break;
- }
- }
- spin_unlock_irqrestore(&card->lock, flags);
-
- if (!t) {
- timed_out:
- fw_notice(card, "unsolicited response (source %x, tlabel %x)\n",
- source, tlabel);
- return;
- }
-
- /*
- * FIXME: sanity check packet, is length correct, does tcodes
- * and addresses match.
- */
+ // FIXME: sanity check packet, is length correct, does tcodes
+ // and addresses match to the transaction request queried later.
+ //
+ // For the tracepoints event, let us decode the header here against the concern.
switch (tcode) {
case TCODE_READ_QUADLET_RESPONSE:
@@ -1062,6 +1040,31 @@ void fw_core_handle_response(struct fw_card *card, struct fw_packet *p)
break;
}
+ spin_lock_irqsave(&card->lock, flags);
+ list_for_each_entry(iter, &card->transaction_list, link) {
+ if (iter->node_id == source && iter->tlabel == tlabel) {
+ if (!try_cancel_split_timeout(iter)) {
+ spin_unlock_irqrestore(&card->lock, flags);
+ goto timed_out;
+ }
+ list_del_init(&iter->link);
+ card->tlabel_mask &= ~(1ULL << iter->tlabel);
+ t = iter;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&card->lock, flags);
+
+ trace_async_response_inbound((uintptr_t)t, p->generation, p->speed, p->ack, p->timestamp,
+ p->header, data, data_length / 4);
+
+ if (!t) {
+ timed_out:
+ fw_notice(card, "unsolicited response (source %x, tlabel %x)\n",
+ source, tlabel);
+ return;
+ }
+
/*
* The response handler may be executed while the request handler
* is still pending. Cancel the request handler.