Since there are a lot of places in the code to check whether the
device is source, add a helper to check it.
Signed-off-by: Tao Zhang <quic_taozha@xxxxxxxxxxx>
---
drivers/hwtracing/coresight/coresight-tpda.c | 2 +-
include/linux/coresight.h | 7 ++++++-
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-tpda.c b/drivers/hwtracing/coresight/coresight-tpda.c
index 4ec676bea1ce..ab94067c0ed3 100644
--- a/drivers/hwtracing/coresight/coresight-tpda.c
+++ b/drivers/hwtracing/coresight/coresight-tpda.c
@@ -24,7 +24,7 @@ DEFINE_CORESIGHT_DEVLIST(tpda_devs, "tpda");
static bool coresight_device_is_tpdm(struct coresight_device *csdev)
{
- return (csdev->type == CORESIGHT_DEV_TYPE_SOURCE) &&
+ return (coresight_is_device_source(csdev)) &&
(csdev->subtype.source_subtype ==
CORESIGHT_DEV_SUBTYPE_SOURCE_TPDM);
}
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 055ce5cd5c44..c50d128e8d93 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -588,9 +588,14 @@ static inline void csdev_access_write64(struct csdev_access *csa, u64 val, u32 o
}
#endif /* CONFIG_64BIT */
+static inline bool coresight_is_device_source(struct coresight_device *csdev)
+{
+ return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SOURCE);
+}
+
static inline bool coresight_is_percpu_source(struct coresight_device *csdev)
{
- return csdev && (csdev->type == CORESIGHT_DEV_TYPE_SOURCE) &&
+ return csdev && coresight_is_device_source(csdev) &&
(csdev->subtype.source_subtype == CORESIGHT_DEV_SUBTYPE_SOURCE_PROC);
}
--
2.17.1
