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msm: ipa3: Schedule the NAPI only from interrupt context

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Due scheduling the NAPI in suspend path observing race conditions
in updating channel polling context and pipe polling context. To
avoid these scenario scheduling NAPI only from interrupt context.

Change-Id: I8eb0438618aedb9873e6eafc269435cc67c03dd5
Signed-off-by: Ashok Vuyyuru <avuyyuru@codeaurora.org>
This commit is contained in:
Ashok Vuyyuru 2020-07-16 00:51:01 +05:30
parent 596aec557e
commit a565f3ec5e
1 changed files with 2 additions and 6 deletions
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8
drivers/platform/msm/ipa/ipa_v3/ipa_utils.c
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@ -8323,13 +8323,9 @@ static bool ipa3_gsi_channel_is_quite(struct ipa3_ep_context *ep)
bool empty;
gsi_is_channel_empty(ep->gsi_chan_hdl, &empty);
if (!empty) {
if (!empty)
IPADBG("ch %ld not empty\n", ep->gsi_chan_hdl);
/* queue a work to start polling if don't have one */
atomic_set(&ipa3_ctx->transport_pm.eot_activity, 1);
if (!atomic_read(&ep->sys->curr_polling_state))
__ipa_gsi_irq_rx_scedule_poll(ep->sys);
}
/*Schedule NAPI only from interrupt context to avoid race conditions*/
return empty;
}