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From:   Mathieu Poirier <mathieu.poirier@linaro.org>
To:     ohad@wizery.com, bjorn.andersson@linaro.org
Cc:     arnaud.pouliquen@st.com, mcoquelin.stm32@gmail.com,
        alexandre.torgue@st.com, linux-remoteproc@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 13/17] remoteproc: Properly deal with a kernel panic when attached
Date:   Wed, 10 Mar 2021 14:10:21 -0700
Message-Id: <20210310211025.1084636-14-mathieu.poirier@linaro.org>
In-Reply-To: <20210310211025.1084636-1-mathieu.poirier@linaro.org>
References: <20210310211025.1084636-1-mathieu.poirier@linaro.org>
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The panic handler operation of registered remote processors
should also be called when remote processors have been
attached to.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
---
 drivers/remoteproc/remoteproc_core.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index c488b1aa6119..f6f0813dade5 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -2728,7 +2728,11 @@ static int rproc_panic_handler(struct notifier_block *nb, unsigned long event,
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(rproc, &rproc_list, node) {
-		if (!rproc->ops->panic || rproc->state != RPROC_RUNNING)
+		if (!rproc->ops->panic)
+			continue;
+
+		if (rproc->state != RPROC_RUNNING &&
+		    rproc->state != RPROC_ATTACHED)
 			continue;
 
 		d = rproc->ops->panic(rproc);
-- 
2.25.1