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Commit fb7aadf1 authored by Avaneesh Kumar Dwivedi's avatar Avaneesh Kumar Dwivedi
Browse files

soc: qcom: Free qmi handle in a worker thread 



This change on arrival of ssr event schdule a worker thread,
which when run carry out task of qmi handle destruction.
It is a desired change to make ssr notification callback as
light as possible and avoid blocking it for long in corner cases.

Change-Id: I832fabce7569b1b8b966b7c49cda1b00cff2c472
Signed-off-by: default avatarAvaneesh Kumar Dwivedi <akdwived@codeaurora.org>
parent 783427f7

drivers/soc/qcom/service-notifier.c

+7 −6
Original line number Diff line number Diff line
@@ -99,6 +99,7 @@ struct ind_req_resp { 
 */

struct qmi_client_info {

	int instance_id;

	int subsys_state;

	struct work_struct svc_arrive;

	struct work_struct svc_exit;

	struct work_struct svc_rcv_msg;
@@ -436,7 +437,7 @@ static void root_service_exit_work(struct work_struct *work) 
{

	struct qmi_client_info *data = container_of(work,

					struct qmi_client_info, svc_exit);

	root_service_service_exit(data, ROOT_PD_DOWN);

	root_service_service_exit(data, data->subsys_state);

}



static int service_event_notify(struct notifier_block *this,
@@ -453,6 +454,7 @@ static int service_event_notify(struct notifier_block *this, 
		break;

	case QMI_SERVER_EXIT:

		pr_debug("Root PD service DOWN\n");

		data->subsys_state = ROOT_PD_DOWN;

		queue_work(data->svc_event_wq, &data->svc_exit);

		break;

	default:
@@ -468,7 +470,6 @@ static int ssr_event_notify(struct notifier_block *this, 
	struct qmi_client_info *info = container_of(this,

					struct qmi_client_info, ssr_notifier);

	struct notif_data *notif = data;

	enum pd_subsys_state state;



	switch (code) {

	case	SUBSYS_BEFORE_SHUTDOWN:
@@ -476,16 +477,16 @@ static int ssr_event_notify(struct notifier_block *this, 
						notif->crashed);

		switch (notif->crashed) {

		case CRASH_STATUS_ERR_FATAL:

			state = ROOT_PD_ERR_FATAL;

			info->subsys_state = ROOT_PD_ERR_FATAL;

			break;

		case CRASH_STATUS_WDOG_BITE:

			state = ROOT_PD_WDOG_BITE;

			info->subsys_state = ROOT_PD_WDOG_BITE;

			break;

		default:

			state = ROOT_PD_SHUTDOWN;

			info->subsys_state = ROOT_PD_SHUTDOWN;

			break;

		}

		root_service_service_exit(info, state);

		queue_work(info->svc_event_wq, &info->svc_exit);

		break;

	default:

		break;