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s390/ccwgroup: make ccwgroup_bus_type const

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Now that the driver core can properly handle constant struct bus_type,
move the ccwgroup_bus_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>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240203-bus_cleanup-s390-v1-1-ac891afc7282@marliere.net
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Ricardo B. Marliere 2024-02-03 11:57:58 -03:00 committed by Heiko Carstens
parent 6695d79224
commit 0d78df873a
1 changed files with 2 additions and 2 deletions
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4
drivers/s390/cio/ccwgroup.c
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@ -31,7 +31,7 @@
* to devices that use multiple subchannels.
*/
static struct bus_type ccwgroup_bus_type;
static const struct bus_type ccwgroup_bus_type;
static void __ccwgroup_remove_symlinks(struct ccwgroup_device *gdev)
{
@ -465,7 +465,7 @@ static void ccwgroup_shutdown(struct device *dev)
gdrv->shutdown(gdev);
}
static struct bus_type ccwgroup_bus_type = {
static const struct bus_type ccwgroup_bus_type = {
.name = "ccwgroup",
.dev_groups = ccwgroup_dev_groups,
.remove = ccwgroup_remove,