linux-kernel - [PATCH v5 03/19] remoteproc: Remove useless check in rproc

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Message-Id: <20210211234627.2669674-4-mathieu.poirier@linaro.org>
Date:   Thu, 11 Feb 2021 16:46:11 -0700
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     ohad@...ery.com, bjorn.andersson@...aro.org,
        arnaud.pouliquen@...com
Cc:     robh+dt@...nel.org, mcoquelin.stm32@...il.com,
        alexandre.torgue@...com, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v5 03/19] 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 f1c097572e01..86bd66955060 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -2350,10 +2350,8 @@ 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