Thread (25 messages) 25 messages, 2 authors, 2020-05-19
STALE2254d LANDED: 4 (3M)

[PATCH 20/23] coresight: Avoid casting void pointers

From: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: 2020-05-18 18:09:05
Subsystem: arm/coresight framework and drivers, hardware tracing facilities, the rest · Maintainers: Suzuki K Poulose, Alexander Shishkin, Linus Torvalds

From: Stephen Boyd <redacted>

We don't need to cast void pointers, such as the amba_id data. Assign to
a local variable to make the code prettier and also return NULL instead
of 0 to make sparse happy.

Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mike Leach <redacted>
Reviewed-by: Joe Perches <joe@perches.com>
Signed-off-by: Stephen Boyd <redacted>
Reviewed-by: Mike Leach <redacted>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/hwtracing/coresight/coresight-priv.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index 5a36f0f50899..36c943ae94d5 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -215,9 +215,12 @@ cti_remove_assoc_from_csdev(struct coresight_device *csdev) {}
 /* extract the data value from a UCI structure given amba_id pointer. */
 static inline void *coresight_get_uci_data(const struct amba_id *id)
 {
-	if (id->data)
-		return ((struct amba_cs_uci_id *)(id->data))->data;
-	return 0;
+	struct amba_cs_uci_id *uci_id = id->data;
+
+	if (!uci_id)
+		return NULL;
+
+	return uci_id->data;
 }
 
 void coresight_release_platform_data(struct coresight_device *csdev,
-- 
2.20.1


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