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s390/cio: make css_bus_type const

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Now that the driver core can properly handle constant struct bus_type,
move the css_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-v1-2-ac891afc7282@marliere.net
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Ricardo B. Marliere 2024-02-03 11:57:59 -03:00 committed by Heiko Carstens
parent 0d78df873a
commit 42c4c8fdbd
1 changed files with 2 additions and 2 deletions
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4
drivers/s390/cio/css.c
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@ -39,7 +39,7 @@ int max_ssid;
#define MAX_CSS_IDX 0
struct channel_subsystem *channel_subsystems[MAX_CSS_IDX + 1];
static struct bus_type css_bus_type;
static const struct bus_type css_bus_type;
int
for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *data)
@ -1409,7 +1409,7 @@ static int css_uevent(const struct device *dev, struct kobj_uevent_env *env)
return ret;
}
static struct bus_type css_bus_type = {
static const struct bus_type css_bus_type = {
.name = "css",
.match = css_bus_match,
.probe = css_probe,