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qcacmn: Check timestamp before calculating time latency

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Race condition is observed when runtime suspend is aborted
due to pending tx completions, in this context all tx desc
are checked for corruption or leakage. In parallel tx completion
is received and descriptor timestamp is set to null. As a
result, while checking for leakage in runtime suspend context,
time difference for the tx completion is current jiffies which
is huge, resulting in triggering recovery.
To fix this, tx_desc timestamp is checked before calculating
time latency. Also, printing tx descriptor id for which
completion is not received.

Change-Id: I38b487a47170af374f43c44a96e2a0753f5d57ef
CRs-Fixed: 3117549
This commit is contained in:
Ananya Gupta
2022-01-28 14:33:12 +05:30
committed by Madan Koyyalamudi
parent c84369425f
commit bb366620fc
2 changed files with 38 additions and 17 deletions
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dp/wifi3.0/dp_tx_desc.h
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@@ -574,6 +574,7 @@ dp_tx_desc_free(struct dp_soc *soc, struct dp_tx_desc_s *tx_desc,
tx_desc->nbuf = NULL;
tx_desc->flags = 0;
dp_tx_desc_set_magic(tx_desc, DP_TX_MAGIC_PATTERN_FREE);
tx_desc->timestamp = 0;
dp_tx_put_desc_flow_pool(pool, tx_desc);
switch (pool->status) {
case FLOW_POOL_ACTIVE_PAUSED: