linux-kernel - [PATCH v3 01/14] remoteproc: Make core operations optional

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Date:   Fri, 24 Apr 2020 14:01:22 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     bjorn.andersson@...aro.org, ohad@...ery.com
Cc:     loic.pallardy@...com, arnaud.pouliquen@...com, s-anna@...com,
        linux-remoteproc@...r.kernel.org, corbet@....net,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 01/14] remoteproc: Make core operations optional

When synchronizing with a remote processor, it is entirely possible that
the remoteproc core is not the life cycle manager.  In such a case core
operations don't exist and should not be called.

Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
 drivers/remoteproc/remoteproc_internal.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
index b389dc79da81..59fc871743c7 100644
--- a/drivers/remoteproc/remoteproc_internal.h
+++ b/drivers/remoteproc/remoteproc_internal.h
@@ -67,7 +67,7 @@ rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...);
 static inline
 int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
 {
-	if (rproc->ops->sanity_check)
+	if (rproc->ops && rproc->ops->sanity_check)
 		return rproc->ops->sanity_check(rproc, fw);
 
 	return 0;
@@ -76,7 +76,7 @@ int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
 static inline
 u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
 {
-	if (rproc->ops->get_boot_addr)
+	if (rproc->ops && rproc->ops->get_boot_addr)
 		return rproc->ops->get_boot_addr(rproc, fw);
 
 	return 0;
@@ -85,7 +85,7 @@ u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
 static inline
 int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
 {
-	if (rproc->ops->load)
+	if (rproc->ops && rproc->ops->load)
 		return rproc->ops->load(rproc, fw);
 
 	return -EINVAL;
@@ -93,7 +93,7 @@ int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
 
 static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
 {
-	if (rproc->ops->parse_fw)
+	if (rproc->ops && rproc->ops->parse_fw)
 		return rproc->ops->parse_fw(rproc, fw);
 
 	return 0;
@@ -103,7 +103,7 @@ static inline
 int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset,
 		     int avail)
 {
-	if (rproc->ops->handle_rsc)
+	if (rproc->ops && rproc->ops->handle_rsc)
 		return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset,
 					      avail);
 
@@ -114,7 +114,7 @@ static inline
 struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
 						   const struct firmware *fw)
 {
-	if (rproc->ops->find_loaded_rsc_table)
+	if (rproc->ops && rproc->ops->find_loaded_rsc_table)
 		return rproc->ops->find_loaded_rsc_table(rproc, fw);
 
 	return NULL;
-- 
2.20.1