linux-kernel - [PATCH v1 3/3] remoteproc: qcom: q6v5: Avoid setting smem bit in case of crash shutdown

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <9e549a54e2a6ede3e413de933fd1725c660993c3.1662995608.git.quic_gokukris@quicinc.com>
Date:   Tue, 13 Sep 2022 11:35:44 -0700
From:   Gokul krishna Krishnakumar <quic_gokukris@...cinc.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>
CC:     <linux-arm-msm@...r.kernel.org>,
        <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Trilok Soni <quic_tsoni@...cinc.com>,
        "Satya Durga Srinivasu Prabhala" <quic_satyap@...cinc.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Elliot Berman <quic_eberman@...cinc.com>,
        "Guru Das Srinagesh" <quic_gurus@...cinc.com>,
        Gokul krishna Krishnakumar <quic_gokukris@...cinc.com>
Subject: [PATCH v1 3/3] remoteproc: qcom: q6v5: Avoid setting smem bit in case of crash shutdown

Avoid setting smem bit in case of crash shutdown, as remote
processor is not able to send the ack back.

Change-Id: I33f19087627e5a7fe2c3bcce377b51b903574bc4
Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@...cinc.com>
---
 drivers/remoteproc/qcom_q6v5.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c
index 1b9e1e1..569427a 100644
--- a/drivers/remoteproc/qcom_q6v5.c
+++ b/drivers/remoteproc/qcom_q6v5.c
@@ -237,8 +237,10 @@ int qcom_q6v5_request_stop(struct qcom_q6v5 *q6v5, struct qcom_sysmon *sysmon)
 
 	q6v5->running = false;
 
-	/* Don't perform SMP2P dance if sysmon already shut down the remote */
-	if (qcom_sysmon_shutdown_acked(sysmon))
+	/* Don't perform SMP2P dance if sysmon already shut
+	 * down the remote or if it isn't running
+	 */
+	if (q6v5->rproc->state != RPROC_RUNNING || qcom_sysmon_shutdown_acked(sysmon))
 		return 0;
 
 	qcom_smem_state_update_bits(q6v5->state,
-- 
2.7.4