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cxl: make cxl_bus_type constant

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Now that the driver core can properly handle constant struct bus_type,
move the cxl_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Alison Schofield <alison.schofield@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linux-cxl@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/2025070138-vigorous-negative-eae7@gregkh
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
This commit is contained in:
Greg Kroah-Hartman 2025-07-01 14:07:39 +02:00 committed by Dave Jiang
parent d7b9056c3a
commit ac0fe6a573
2 changed files with 2 additions and 2 deletions
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2
drivers/cxl/core/port.c
View File

@ -2293,7 +2293,7 @@ static const struct attribute_group *cxl_bus_attribute_groups[] = {
NULL,
};
struct bus_type cxl_bus_type = {
const struct bus_type cxl_bus_type = {
.name = "cxl",
.uevent = cxl_bus_uevent,
.match = cxl_bus_match,

2
drivers/cxl/cxl.h
View File

@ -815,7 +815,7 @@ int cxl_dvsec_rr_decode(struct cxl_dev_state *cxlds,
bool is_cxl_region(struct device *dev);
extern struct bus_type cxl_bus_type;
extern const struct bus_type cxl_bus_type;
struct cxl_driver {
const char *name;