From: Sibi Sankar <sibis@codeaurora.org>
To: bjorn.andersson@linaro.org, jassisinghbrar@gmail.com,
manivannan.sadhasivam@linaro.org
Cc: agross@kernel.org, rananta@codeaurora.org,
vnkgutta@codeaurora.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, Sibi Sankar <sibis@codeaurora.org>,
stable@vger.kernel.org
Subject: [PATCH] mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion
Date: Wed, 16 Jun 2021 23:12:58 +0530 [thread overview]
Message-ID: <1623865378-1943-1-git-send-email-sibis@codeaurora.org> (raw)
Fix IPCC (Inter-Processor Communication Controller) channel exhaustion by
setting the channel private data to NULL on mbox shutdown.
Err Logs:
remoteproc: MBA booted without debug policy, loading mpss
remoteproc: glink-edge: failed to acquire IPC channel
remoteproc: failed to probe subdevices for remoteproc: -16
Fixes: fa74a0257f45 ("mailbox: Add support for Qualcomm IPCC")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Cc: stable@vger.kernel.org
---
drivers/mailbox/qcom-ipcc.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/mailbox/qcom-ipcc.c b/drivers/mailbox/qcom-ipcc.c
index 2d13c72944c6..584700cd1585 100644
--- a/drivers/mailbox/qcom-ipcc.c
+++ b/drivers/mailbox/qcom-ipcc.c
@@ -155,6 +155,11 @@ static int qcom_ipcc_mbox_send_data(struct mbox_chan *chan, void *data)
return 0;
}
+static void qcom_ipcc_mbox_shutdown(struct mbox_chan *chan)
+{
+ chan->con_priv = NULL;
+}
+
static struct mbox_chan *qcom_ipcc_mbox_xlate(struct mbox_controller *mbox,
const struct of_phandle_args *ph)
{
@@ -184,6 +189,7 @@ static struct mbox_chan *qcom_ipcc_mbox_xlate(struct mbox_controller *mbox,
static const struct mbox_chan_ops ipcc_mbox_chan_ops = {
.send_data = qcom_ipcc_mbox_send_data,
+ .shutdown = qcom_ipcc_mbox_shutdown,
};
static int qcom_ipcc_setup_mbox(struct qcom_ipcc *ipcc)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next reply other threads:[~2021-06-16 17:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-16 17:42 Sibi Sankar [this message]
2021-06-16 20:26 ` [PATCH] mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion Bjorn Andersson
2021-06-18 4:18 ` Manivannan Sadhasivam
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