linux-kernel - [PATCH 2/2] remoteproc: core: Introduce rproc_mem_entry

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Date:   Fri, 10 Jun 2022 12:23:05 -0700
From:   Chris Lew <quic_clew@...cinc.com>
To:     <bjorn.andersson@...aro.org>, <mathieu.poirier@...aro.org>
CC:     <linux-remoteproc@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_clew@...cinc.com>
Subject: [PATCH 2/2] remoteproc: core: Introduce rproc_mem_entry_free

Introduce a helper to free the rproc_mem_entry allocated by
rproc_mem_entry_init(). This helper is to help manage rproc carveouts
added to an rproc outside of remoteproc.

Signed-off-by: Chris Lew <quic_clew@...cinc.com>
---
 drivers/remoteproc/remoteproc_core.c | 13 +++++++++++++
 include/linux/remoteproc.h           |  1 +
 2 files changed, 14 insertions(+)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index ee71fccae970..161691fd2e96 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -1069,6 +1069,19 @@ rproc_mem_entry_init(struct device *dev,
 EXPORT_SYMBOL(rproc_mem_entry_init);
 
 /**
+ * rproc_mem_entry_free() - free a rproc_mem_entry struct
+ * @mem: rproc_mem_entry allocated by rproc_mem_entry_init()
+ *
+ * This function frees a rproc_mem_entry_struct that was allocated by
+ * rproc_mem_entry_init().
+ */
+void rproc_mem_entry_free(struct rproc_mem_entry *mem)
+{
+	kfree(mem);
+}
+EXPORT_SYMBOL(rproc_mem_entry_free);
+
+/**
  * rproc_of_resm_mem_entry_init() - allocate and initialize rproc_mem_entry struct
  * from a reserved memory phandle
  * @dev: pointer on device struct
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 43112aa78ffe..9b039f37da12 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -666,6 +666,7 @@ rproc_mem_entry_init(struct device *dev,
 		     int (*alloc)(struct rproc *, struct rproc_mem_entry *),
 		     int (*release)(struct rproc *, struct rproc_mem_entry *),
 		     const char *name, ...);
+void rproc_mem_entry_free(struct rproc_mem_entry *mem);
 
 struct rproc_mem_entry *
 rproc_of_resm_mem_entry_init(struct device *dev, u32 of_resm_idx, size_t len,
-- 
2.7.4