linux-kernel - [PATCH v4 03/17] remoteproc: Remove useless check in rproc

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Message-Id: <20201218173228.2277032-4-mathieu.poirier@linaro.org>
Date:   Fri, 18 Dec 2020 10:32:14 -0700
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     ohad@...ery.com, bjorn.andersson@...aro.org, robh+dt@...nel.org
Cc:     arnaud.pouliquen@...com, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4 03/17] remoteproc: Remove useless check in rproc_del()

Whether started at probe() time or thereafter from the command
line, a remote processor needs to be shutdown before the final
cleanup phases can happen.  Otherwise the system may be left in
an unpredictable state where the remote processor is expecting
the remoteproc core to be providing services when in fact it
no longer exist.

Invariably calling rproc_shutdown() is fine since it will return
immediately if the remote processor has already been switched
off.

Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
Reviewed-by: Peng Fan <peng.fan@....com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@...com>
---
 drivers/remoteproc/remoteproc_core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index e55568d1e7e2..f36786b47a4f 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -2283,10 +2283,8 @@ int rproc_del(struct rproc *rproc)
 	if (!rproc)
 		return -EINVAL;
 
-	/* if rproc is marked always-on, rproc_add() booted it */
 	/* TODO: make sure this works with rproc->power > 1 */
-	if (rproc->auto_boot)
-		rproc_shutdown(rproc);
+	rproc_shutdown(rproc);
 
 	mutex_lock(&rproc->lock);
 	rproc->state = RPROC_DELETED;
-- 
2.25.1