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authorRicardo B. Marliere <ricardo@marliere.net>2024-02-19 16:43:05 +0300
committerSuzuki K Poulose <suzuki.poulose@arm.com>2024-06-21 12:24:43 +0300
commit4dcc0f95ca2a9738e5e4e3bd7571fd95a9cbf272 (patch)
tree22814314e40c0bf66d667601bb3e879bdbc4858b
parentb9b25c8496019402ecd64ddc5ae56f9bd97b12b2 (diff)
downloadlinux-4dcc0f95ca2a9738e5e4e3bd7571fd95a9cbf272.tar.xz
coresight: constify the struct device_type usage
Since commit aed65af1cc2f ("drivers: make device_type const"), the driver core can properly handle constant struct device_type. Move the coresight_dev_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20240219-device_cleanup-coresight-v1-1-4a8a0b816183@marliere.net Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
-rw-r--r--drivers/hwtracing/coresight/coresight-priv.h2
-rw-r--r--drivers/hwtracing/coresight/coresight-sysfs.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwtracing/coresight/coresight-priv.h b/drivers/hwtracing/coresight/coresight-priv.h
index fc3617642b01..61a46d3bdcc8 100644
--- a/drivers/hwtracing/coresight/coresight-priv.h
+++ b/drivers/hwtracing/coresight/coresight-priv.h
@@ -13,7 +13,7 @@
#include <linux/pm_runtime.h>
extern struct mutex coresight_mutex;
-extern struct device_type coresight_dev_type[];
+extern const struct device_type coresight_dev_type[];
/*
* Coresight management registers (0xf00-0xfcc)
diff --git a/drivers/hwtracing/coresight/coresight-sysfs.c b/drivers/hwtracing/coresight/coresight-sysfs.c
index f9444e2cb1d9..1e67cc7758d7 100644
--- a/drivers/hwtracing/coresight/coresight-sysfs.c
+++ b/drivers/hwtracing/coresight/coresight-sysfs.c
@@ -377,7 +377,7 @@ static struct attribute *coresight_source_attrs[] = {
};
ATTRIBUTE_GROUPS(coresight_source);
-struct device_type coresight_dev_type[] = {
+const struct device_type coresight_dev_type[] = {
[CORESIGHT_DEV_TYPE_SINK] = {
.name = "sink",
.groups = coresight_sink_groups,