linux-kernel - [PATCH v11 3/7] remoteproc: core: Refactor resource table cleanup into rproc_release

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Message-ID: <20241009080108.4170320-4-arnaud.pouliquen@foss.st.com>
Date: Wed, 9 Oct 2024 10:01:04 +0200
From: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier
	<mathieu.poirier@...aro.org>,
        Jens Wiklander <jens.wiklander@...aro.org>,
        "Rob Herring" <robh+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <op-tee@...ts.trustedfirmware.org>, <devicetree@...r.kernel.org>,
        Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
Subject: [PATCH v11 3/7] remoteproc: core: Refactor resource table cleanup into rproc_release_fw

This patch centralizing the cleanup of the resource table into a new
helper function rproc_release_fw().

More than just factorizing the code into a common function, it is the
first step to integrate the release of the firmware image loaded by the
OP-TEE remoteproc framework.

Suggested-by: Mathieu Poirier <mathieu.poirier@...aro.org>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
---
Update vs v9 revision:
- add justification of the patch in the commit message
---
 drivers/remoteproc/remoteproc_core.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index ace11ea17097..7694817f25d4 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -1256,6 +1256,13 @@ static int rproc_alloc_registered_carveouts(struct rproc *rproc)
 	return 0;
 }
 
+static void rproc_release_fw(struct rproc *rproc)
+{
+	/* Free the copy of the resource table */
+	kfree(rproc->cached_table);
+	rproc->cached_table = NULL;
+	rproc->table_ptr = NULL;
+}
 
 /**
  * rproc_resource_cleanup() - clean up and free all acquired resources
@@ -1485,9 +1492,7 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
 
 clean_up_resources:
 	rproc_resource_cleanup(rproc);
-	kfree(rproc->cached_table);
-	rproc->cached_table = NULL;
-	rproc->table_ptr = NULL;
+	rproc_release_fw(rproc);
 unprepare_rproc:
 	/* release HW resources if needed */
 	rproc_unprepare_device(rproc);
@@ -2067,10 +2072,7 @@ int rproc_shutdown(struct rproc *rproc)
 
 	rproc_disable_iommu(rproc);
 
-	/* Free the copy of the resource table */
-	kfree(rproc->cached_table);
-	rproc->cached_table = NULL;
-	rproc->table_ptr = NULL;
+	rproc_release_fw(rproc);
 out:
 	mutex_unlock(&rproc->lock);
 	return ret;
@@ -2133,10 +2135,7 @@ int rproc_detach(struct rproc *rproc)
 
 	rproc_disable_iommu(rproc);
 
-	/* Free the copy of the resource table */
-	kfree(rproc->cached_table);
-	rproc->cached_table = NULL;
-	rproc->table_ptr = NULL;
+	rproc_release_fw(rproc);
 out:
 	mutex_unlock(&rproc->lock);
 	return ret;
-- 
2.25.1