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msm: ipa3: Changes to check disconnect in progress while sending data

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In SSR scenario while teardown the pipe there could be possibility to
receive the UL data to avoid queuing the data checking for disconnect
InProgress flag.

Signed-off-by: Ashok Vuyyuru <avuyyuru@codeaurora.org>
Change-Id: I73397e51e6e7affae71313d08356f809788db484
This commit is contained in:
Ashok Vuyyuru 2021-04-28 22:29:59 +05:30
parent e74ef50626
commit b1e7c45a8c
1 changed files with 7 additions and 0 deletions
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7
drivers/platform/msm/ipa/ipa_v3/ipa_dp.c
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@ -431,6 +431,12 @@ int ipa3_send(struct ipa3_sys_context *sys,
spin_lock_bh(&sys->spinlock);
if (unlikely(atomic_read(&sys->ep->disconnect_in_progress))) {
IPAERR("Pipe disconnect in progress dropping the packet\n");
spin_unlock_bh(&sys->spinlock);
return -EFAULT;
}
for (i = 0; i < num_desc; i++) {
if (!list_empty(&sys->avail_tx_wrapper_list)) {
tx_pkt = list_first_entry(&sys->avail_tx_wrapper_list,
@ -1445,6 +1451,7 @@ int ipa3_teardown_sys_pipe(u32 clnt_hdl)
if (IPA_CLIENT_IS_PROD(ep->client)) {
do {
spin_lock_bh(&ep->sys->spinlock);
atomic_set(&ep->disconnect_in_progress, 1);
empty = list_empty(&ep->sys->head_desc_list);
spin_unlock_bh(&ep->sys->spinlock);
if (!empty)