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perf: make pmu_bus const 

Now that the driver core can properly handle constant struct bus_type,
move the pmu_bus 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>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240204-bus_cleanup-events-v1-1-c779d1639c3a@marliere.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ricardo B. Marliere 2024-02-04 10:29:39 -03:00 committed by Greg Kroah-Hartman
parent d4a5d397c7
commit 3b5eba544a
1 changed files with 1 additions and 1 deletions
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2
kernel/events/core.c
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@ -12216,7 +12216,7 @@ static const struct attribute_group *pmu_dev_groups[] = {
};
static int pmu_bus_running;
static struct bus_type pmu_bus = {
static const struct bus_type pmu_bus = {
.name = "event_source",
.dev_groups = pmu_dev_groups,
};