From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: coresight@lists.linaro.org
Cc: linux-kernel@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@linaro.org>,
James Clark <james.clark@arm.com>, Leo Yan <leo.yan@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH] coresight: make coresight_bustype const
Date: Fri, 5 Jan 2024 13:33:32 +0100 [thread overview]
Message-ID: <2024010531-tinfoil-avert-4a57@gregkh> (raw)
Now that the driver core can properly handle constant struct bus_type,
move the coresight_bustype variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: James Clark <james.clark@arm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/hwtracing/coresight/coresight-core.c | 2 +-
include/linux/coresight.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c
index 9fabe00a40d6..24c49e581737 100644
--- a/drivers/hwtracing/coresight/coresight-core.c
+++ b/drivers/hwtracing/coresight/coresight-core.c
@@ -1796,7 +1796,7 @@ char *coresight_alloc_device_name(struct coresight_dev_list *dict,
}
EXPORT_SYMBOL_GPL(coresight_alloc_device_name);
-struct bus_type coresight_bustype = {
+const struct bus_type coresight_bustype = {
.name = "coresight",
};
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index a269fffaf991..8fe75a0d7693 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -35,7 +35,7 @@
#define CORESIGHT_UNLOCK 0xc5acce55
-extern struct bus_type coresight_bustype;
+extern const struct bus_type coresight_bustype;
enum coresight_dev_type {
CORESIGHT_DEV_TYPE_SINK,
--
2.43.0
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next reply other threads:[~2024-01-05 12:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-05 12:33 Greg Kroah-Hartman [this message]
2024-01-05 14:22 ` [PATCH] coresight: make coresight_bustype const Suzuki K Poulose
2024-01-05 14:40 ` Greg Kroah-Hartman
2024-02-12 11:30 ` Suzuki K Poulose
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